Refactor code structure and remove redundant changes

backend/apps/api/v1/serializers/__init__.py

@@ -0,0 +1,294 @@
+"""
+ThrillWiki API v1 serializers module.
+
+This module provides a unified interface to all serializers across different domains
+while maintaining the modular structure for better organization and maintainability.
+"""
+
+# Shared utilities and base classes
+from .shared import (
+    CATEGORY_CHOICES,
+    ModelChoices,
+    LocationOutputSerializer,
+    CompanyOutputSerializer,
+    UserModel,
+)
+
+# Parks domain
+from .parks import (
+    ParkListOutputSerializer,
+    ParkDetailOutputSerializer,
+    ParkCreateInputSerializer,
+    ParkUpdateInputSerializer,
+    ParkFilterInputSerializer,
+    ParkAreaDetailOutputSerializer,
+    ParkAreaCreateInputSerializer,
+    ParkAreaUpdateInputSerializer,
+    ParkLocationOutputSerializer,
+    ParkLocationCreateInputSerializer,
+    ParkLocationUpdateInputSerializer,
+    ParkSuggestionSerializer,
+    ParkSuggestionOutputSerializer,
+)
+
+# Companies and ride models domain
+from .companies import (
+    CompanyDetailOutputSerializer,
+    CompanyCreateInputSerializer,
+    CompanyUpdateInputSerializer,
+    RideModelDetailOutputSerializer,
+    RideModelCreateInputSerializer,
+    RideModelUpdateInputSerializer,
+)
+
+# Rides domain
+from .rides import (
+    RideParkOutputSerializer,
+    RideModelOutputSerializer,
+    RideListOutputSerializer,
+    RideDetailOutputSerializer,
+    RideCreateInputSerializer,
+    RideUpdateInputSerializer,
+    RideFilterInputSerializer,
+    RollerCoasterStatsOutputSerializer,
+    RollerCoasterStatsCreateInputSerializer,
+    RollerCoasterStatsUpdateInputSerializer,
+    RideLocationOutputSerializer,
+    RideLocationCreateInputSerializer,
+    RideLocationUpdateInputSerializer,
+    RideReviewOutputSerializer,
+    RideReviewCreateInputSerializer,
+    RideReviewUpdateInputSerializer,
+)
+
+# Accounts domain
+from .accounts import (
+    UserProfileOutputSerializer,
+    UserProfileCreateInputSerializer,
+    UserProfileUpdateInputSerializer,
+    TopListOutputSerializer,
+    TopListCreateInputSerializer,
+    TopListUpdateInputSerializer,
+    TopListItemOutputSerializer,
+    TopListItemCreateInputSerializer,
+    TopListItemUpdateInputSerializer,
+    UserOutputSerializer,
+    LoginInputSerializer,
+    LoginOutputSerializer,
+    SignupInputSerializer,
+    SignupOutputSerializer,
+    PasswordResetInputSerializer,
+    PasswordResetOutputSerializer,
+    PasswordChangeInputSerializer,
+    PasswordChangeOutputSerializer,
+    LogoutOutputSerializer,
+    SocialProviderOutputSerializer,
+    AuthStatusOutputSerializer,
+)
+
+# Statistics and health checks
+from .other import (
+    ParkStatsOutputSerializer,
+    RideStatsOutputSerializer,
+    ParkReviewOutputSerializer,
+    HealthCheckOutputSerializer,
+    PerformanceMetricsOutputSerializer,
+    SimpleHealthOutputSerializer,
+)
+
+# Media domain
+from .media import (
+    PhotoUploadInputSerializer,
+    PhotoDetailOutputSerializer,
+    PhotoListOutputSerializer,
+    PhotoUpdateInputSerializer,
+)
+
+# Parks media domain
+from .parks_media import (
+    ParkPhotoOutputSerializer,
+    ParkPhotoCreateInputSerializer,
+    ParkPhotoUpdateInputSerializer,
+    ParkPhotoListOutputSerializer,
+    ParkPhotoApprovalInputSerializer,
+    ParkPhotoStatsOutputSerializer,
+)
+
+# Rides media domain
+from .rides_media import (
+    RidePhotoOutputSerializer,
+    RidePhotoCreateInputSerializer,
+    RidePhotoUpdateInputSerializer,
+    RidePhotoListOutputSerializer,
+    RidePhotoApprovalInputSerializer,
+    RidePhotoStatsOutputSerializer,
+    RidePhotoTypeFilterSerializer,
+)
+
+# Search domain
+from .search import (
+    EntitySearchInputSerializer,
+    EntitySearchResultSerializer,
+    EntitySearchOutputSerializer,
+    LocationSearchResultSerializer,
+    LocationSearchOutputSerializer,
+    ReverseGeocodeOutputSerializer,
+)
+
+# History domain
+from .history import (
+    ParkHistoryEventSerializer,
+    RideHistoryEventSerializer,
+    ParkHistoryOutputSerializer,
+    RideHistoryOutputSerializer,
+    UnifiedHistoryTimelineSerializer,
+    HistorySummarySerializer,
+)
+
+# Services domain
+from .services import (
+    EmailSendInputSerializer,
+    EmailTemplateOutputSerializer,
+    MapDataOutputSerializer,
+    CoordinateInputSerializer,
+    HistoryEventSerializer,
+    HistoryEntryOutputSerializer,
+    HistoryCreateInputSerializer,
+    ModerationSubmissionSerializer,
+    ModerationSubmissionOutputSerializer,
+    RoadtripParkSerializer,
+    RoadtripCreateInputSerializer,
+    RoadtripOutputSerializer,
+    GeocodeInputSerializer,
+    GeocodeOutputSerializer,
+    DistanceCalculationInputSerializer,
+    DistanceCalculationOutputSerializer,
+)
+
+# Re-export everything for backward compatibility
+__all__ = [
+    # Shared
+    "CATEGORY_CHOICES",
+    "ModelChoices",
+    "LocationOutputSerializer",
+    "CompanyOutputSerializer",
+    "UserModel",
+    # Parks
+    "ParkListOutputSerializer",
+    "ParkDetailOutputSerializer",
+    "ParkCreateInputSerializer",
+    "ParkUpdateInputSerializer",
+    "ParkFilterInputSerializer",
+    "ParkAreaDetailOutputSerializer",
+    "ParkAreaCreateInputSerializer",
+    "ParkAreaUpdateInputSerializer",
+    "ParkLocationOutputSerializer",
+    "ParkLocationCreateInputSerializer",
+    "ParkLocationUpdateInputSerializer",
+    "ParkSuggestionSerializer",
+    "ParkSuggestionOutputSerializer",
+    # Companies
+    "CompanyDetailOutputSerializer",
+    "CompanyCreateInputSerializer",
+    "CompanyUpdateInputSerializer",
+    "RideModelDetailOutputSerializer",
+    "RideModelCreateInputSerializer",
+    "RideModelUpdateInputSerializer",
+    # Rides
+    "RideParkOutputSerializer",
+    "RideModelOutputSerializer",
+    "RideListOutputSerializer",
+    "RideDetailOutputSerializer",
+    "RideCreateInputSerializer",
+    "RideUpdateInputSerializer",
+    "RideFilterInputSerializer",
+    "RollerCoasterStatsOutputSerializer",
+    "RollerCoasterStatsCreateInputSerializer",
+    "RollerCoasterStatsUpdateInputSerializer",
+    "RideLocationOutputSerializer",
+    "RideLocationCreateInputSerializer",
+    "RideLocationUpdateInputSerializer",
+    "RideReviewOutputSerializer",
+    "RideReviewCreateInputSerializer",
+    "RideReviewUpdateInputSerializer",
+    # Services
+    "EmailSendInputSerializer",
+    "EmailTemplateOutputSerializer",
+    "MapDataOutputSerializer",
+    "CoordinateInputSerializer",
+    "HistoryEventSerializer",
+    "HistoryEntryOutputSerializer",
+    "HistoryCreateInputSerializer",
+    "ModerationSubmissionSerializer",
+    "ModerationSubmissionOutputSerializer",
+    "RoadtripParkSerializer",
+    "RoadtripCreateInputSerializer",
+    "RoadtripOutputSerializer",
+    "GeocodeInputSerializer",
+    "GeocodeOutputSerializer",
+    "DistanceCalculationInputSerializer",
+    "DistanceCalculationOutputSerializer",
+    # Media
+    "PhotoUploadInputSerializer",
+    "PhotoDetailOutputSerializer",
+    "PhotoListOutputSerializer",
+    "PhotoUpdateInputSerializer",
+    # Parks Media
+    "ParkPhotoOutputSerializer",
+    "ParkPhotoCreateInputSerializer",
+    "ParkPhotoUpdateInputSerializer",
+    "ParkPhotoListOutputSerializer",
+    "ParkPhotoApprovalInputSerializer",
+    "ParkPhotoStatsOutputSerializer",
+    # Rides Media
+    "RidePhotoOutputSerializer",
+    "RidePhotoCreateInputSerializer",
+    "RidePhotoUpdateInputSerializer",
+    "RidePhotoListOutputSerializer",
+    "RidePhotoApprovalInputSerializer",
+    "RidePhotoStatsOutputSerializer",
+    "RidePhotoTypeFilterSerializer",
+    # Search
+    "EntitySearchInputSerializer",
+    "EntitySearchResultSerializer",
+    "EntitySearchOutputSerializer",
+    "LocationSearchResultSerializer",
+    "LocationSearchOutputSerializer",
+    "ReverseGeocodeOutputSerializer",
+    # History
+    "ParkHistoryEventSerializer",
+    "RideHistoryEventSerializer",
+    "ParkHistoryOutputSerializer",
+    "RideHistoryOutputSerializer",
+    "UnifiedHistoryTimelineSerializer",
+    "HistorySummarySerializer",
+    # Statistics and health
+    "ParkStatsOutputSerializer",
+    "RideStatsOutputSerializer",
+    "ParkReviewOutputSerializer",
+    "HealthCheckOutputSerializer",
+    "PerformanceMetricsOutputSerializer",
+    "SimpleHealthOutputSerializer",
+    # Accounts
+    "UserProfileOutputSerializer",
+    "UserProfileCreateInputSerializer",
+    "UserProfileUpdateInputSerializer",
+    "TopListOutputSerializer",
+    "TopListCreateInputSerializer",
+    "TopListUpdateInputSerializer",
+    "TopListItemOutputSerializer",
+    "TopListItemCreateInputSerializer",
+    "TopListItemUpdateInputSerializer",
+    "UserOutputSerializer",
+    "LoginInputSerializer",
+    "LoginOutputSerializer",
+    "SignupInputSerializer",
+    "SignupOutputSerializer",
+    "PasswordResetInputSerializer",
+    "PasswordResetOutputSerializer",
+    "PasswordChangeInputSerializer",
+    "PasswordChangeOutputSerializer",
+    "LogoutOutputSerializer",
+    "SocialProviderOutputSerializer",
+    "AuthStatusOutputSerializer",
+]

backend/apps/api/v1/serializers/accounts.py

@@ -0,0 +1,496 @@
+"""
+Accounts domain serializers for ThrillWiki API v1.
+
+This module contains all serializers related to user accounts, profiles,
+authentication, top lists, and user statistics.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+from django.contrib.auth.password_validation import validate_password
+from django.core.exceptions import ValidationError as DjangoValidationError
+from django.utils.crypto import get_random_string
+from django.utils import timezone
+from datetime import timedelta
+from django.contrib.sites.shortcuts import get_current_site
+from django.template.loader import render_to_string
+
+from .shared import UserModel, ModelChoices
+
+
+# === USER PROFILE SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "User Profile Example",
+            summary="Example user profile response",
+            description="A user's profile information",
+            value={
+                "id": 1,
+                "profile_id": "1234",
+                "display_name": "Coaster Enthusiast",
+                "bio": "Love visiting theme parks around the world!",
+                "pronouns": "they/them",
+                "avatar_url": "/media/avatars/user1.jpg",
+                "coaster_credits": 150,
+                "dark_ride_credits": 45,
+                "flat_ride_credits": 80,
+                "water_ride_credits": 25,
+                "user": {
+                    "username": "coaster_fan",
+                    "date_joined": "2024-01-01T00:00:00Z",
+                },
+            },
+        )
+    ]
+)
+class UserProfileOutputSerializer(serializers.Serializer):
+    """Output serializer for user profiles."""
+
+    id = serializers.IntegerField()
+    profile_id = serializers.CharField()
+    display_name = serializers.CharField()
+    bio = serializers.CharField()
+    pronouns = serializers.CharField()
+    avatar_url = serializers.SerializerMethodField()
+    twitter = serializers.URLField()
+    instagram = serializers.URLField()
+    youtube = serializers.URLField()
+    discord = serializers.CharField()
+
+    # Ride statistics
+    coaster_credits = serializers.IntegerField()
+    dark_ride_credits = serializers.IntegerField()
+    flat_ride_credits = serializers.IntegerField()
+    water_ride_credits = serializers.IntegerField()
+
+    # User info (limited)
+    user = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.URLField(allow_null=True))
+    def get_avatar_url(self, obj) -> str | None:
+        return obj.get_avatar()
+
+    @extend_schema_field(serializers.DictField())
+    def get_user(self, obj) -> dict:
+        return {
+            "username": obj.user.username,
+            "date_joined": obj.user.date_joined,
+        }
+
+
+class UserProfileCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating user profiles."""
+
+    display_name = serializers.CharField(max_length=50)
+    bio = serializers.CharField(max_length=500, allow_blank=True, default="")
+    pronouns = serializers.CharField(max_length=50, allow_blank=True, default="")
+    twitter = serializers.URLField(required=False, allow_blank=True)
+    instagram = serializers.URLField(required=False, allow_blank=True)
+    youtube = serializers.URLField(required=False, allow_blank=True)
+    discord = serializers.CharField(max_length=100, allow_blank=True, default="")
+
+
+class UserProfileUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating user profiles."""
+
+    display_name = serializers.CharField(max_length=50, required=False)
+    bio = serializers.CharField(max_length=500, allow_blank=True, required=False)
+    pronouns = serializers.CharField(max_length=50, allow_blank=True, required=False)
+    twitter = serializers.URLField(required=False, allow_blank=True)
+    instagram = serializers.URLField(required=False, allow_blank=True)
+    youtube = serializers.URLField(required=False, allow_blank=True)
+    discord = serializers.CharField(max_length=100, allow_blank=True, required=False)
+    coaster_credits = serializers.IntegerField(required=False)
+    dark_ride_credits = serializers.IntegerField(required=False)
+    flat_ride_credits = serializers.IntegerField(required=False)
+    water_ride_credits = serializers.IntegerField(required=False)
+
+
+# === TOP LIST SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Top List Example",
+            summary="Example top list response",
+            description="A user's top list of rides or parks",
+            value={
+                "id": 1,
+                "title": "My Top 10 Roller Coasters",
+                "category": "RC",
+                "description": "My favorite roller coasters ranked",
+                "user": {"username": "coaster_fan", "display_name": "Coaster Fan"},
+                "created_at": "2024-01-01T00:00:00Z",
+                "updated_at": "2024-08-15T12:00:00Z",
+            },
+        )
+    ]
+)
+class TopListOutputSerializer(serializers.Serializer):
+    """Output serializer for top lists."""
+
+    id = serializers.IntegerField()
+    title = serializers.CharField()
+    category = serializers.CharField()
+    description = serializers.CharField()
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+    # User info
+    user = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_user(self, obj) -> dict:
+        return {
+            "username": obj.user.username,
+            "display_name": obj.user.get_display_name(),
+        }
+
+
+class TopListCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating top lists."""
+
+    title = serializers.CharField(max_length=100)
+    category = serializers.ChoiceField(choices=ModelChoices.get_top_list_categories())
+    description = serializers.CharField(allow_blank=True, default="")
+
+
+class TopListUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating top lists."""
+
+    title = serializers.CharField(max_length=100, required=False)
+    category = serializers.ChoiceField(
+        choices=ModelChoices.get_top_list_categories(), required=False
+    )
+    description = serializers.CharField(allow_blank=True, required=False)
+
+
+# === TOP LIST ITEM SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Top List Item Example",
+            summary="Example top list item response",
+            description="An item in a user's top list",
+            value={
+                "id": 1,
+                "rank": 1,
+                "notes": "Amazing airtime and smooth ride",
+                "object_name": "Steel Vengeance",
+                "object_type": "Ride",
+                "top_list": {"id": 1, "title": "My Top 10 Roller Coasters"},
+            },
+        )
+    ]
+)
+class TopListItemOutputSerializer(serializers.Serializer):
+    """Output serializer for top list items."""
+
+    id = serializers.IntegerField()
+    rank = serializers.IntegerField()
+    notes = serializers.CharField()
+    object_name = serializers.SerializerMethodField()
+    object_type = serializers.SerializerMethodField()
+
+    # Top list info
+    top_list = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.CharField())
+    def get_object_name(self, obj) -> str:
+        """Get the name of the referenced object."""
+        # This would need to be implemented based on the generic foreign key
+        return "Object Name"  # Placeholder
+
+    @extend_schema_field(serializers.CharField())
+    def get_object_type(self, obj) -> str:
+        """Get the type of the referenced object."""
+        return obj.content_type.model_class().__name__
+
+    @extend_schema_field(serializers.DictField())
+    def get_top_list(self, obj) -> dict:
+        return {
+            "id": obj.top_list.id,
+            "title": obj.top_list.title,
+        }
+
+
+class TopListItemCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating top list items."""
+
+    top_list_id = serializers.IntegerField()
+    content_type_id = serializers.IntegerField()
+    object_id = serializers.IntegerField()
+    rank = serializers.IntegerField(min_value=1)
+    notes = serializers.CharField(allow_blank=True, default="")
+
+
+class TopListItemUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating top list items."""
+
+    rank = serializers.IntegerField(min_value=1, required=False)
+    notes = serializers.CharField(allow_blank=True, required=False)
+
+
+# === ACCOUNTS SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "User Example",
+            summary="Example user response",
+            description="A typical user object",
+            value={
+                "id": 1,
+                "username": "john_doe",
+                "email": "john@example.com",
+                "first_name": "John",
+                "last_name": "Doe",
+                "date_joined": "2024-01-01T12:00:00Z",
+                "is_active": True,
+                "avatar_url": "https://example.com/avatars/john.jpg",
+            },
+        )
+    ]
+)
+class UserOutputSerializer(serializers.ModelSerializer):
+    """User serializer for API responses."""
+
+    avatar_url = serializers.SerializerMethodField()
+
+    class Meta:
+        model = UserModel
+        fields = [
+            "id",
+            "username",
+            "email",
+            "first_name",
+            "last_name",
+            "date_joined",
+            "is_active",
+            "avatar_url",
+        ]
+        read_only_fields = ["id", "date_joined", "is_active"]
+
+    @extend_schema_field(serializers.URLField(allow_null=True))
+    def get_avatar_url(self, obj) -> str | None:
+        """Get user avatar URL."""
+        if hasattr(obj, "profile") and obj.profile.avatar:
+            return obj.profile.avatar.url
+        return None
+
+
+class LoginInputSerializer(serializers.Serializer):
+    """Input serializer for user login."""
+
+    username = serializers.CharField(
+        max_length=254, help_text="Username or email address"
+    )
+    password = serializers.CharField(
+        max_length=128, style={"input_type": "password"}, trim_whitespace=False
+    )
+
+    def validate(self, attrs):
+        username = attrs.get("username")
+        password = attrs.get("password")
+
+        if username and password:
+            return attrs
+
+        raise serializers.ValidationError("Must include username/email and password.")
+
+
+class LoginOutputSerializer(serializers.Serializer):
+    """Output serializer for successful login."""
+
+    token = serializers.CharField()
+    user = UserOutputSerializer()
+    message = serializers.CharField()
+
+
+class SignupInputSerializer(serializers.ModelSerializer):
+    """Input serializer for user registration."""
+
+    password = serializers.CharField(
+        write_only=True,
+        validators=[validate_password],
+        style={"input_type": "password"},
+    )
+    password_confirm = serializers.CharField(
+        write_only=True, style={"input_type": "password"}
+    )
+
+    class Meta:
+        model = UserModel
+        fields = [
+            "username",
+            "email",
+            "first_name",
+            "last_name",
+            "password",
+            "password_confirm",
+        ]
+        extra_kwargs = {
+            "password": {"write_only": True},
+            "email": {"required": True},
+        }
+
+    def validate_email(self, value):
+        """Validate email is unique."""
+        if UserModel.objects.filter(email=value).exists():
+            raise serializers.ValidationError("A user with this email already exists.")
+        return value
+
+    def validate_username(self, value):
+        """Validate username is unique."""
+        if UserModel.objects.filter(username=value).exists():
+            raise serializers.ValidationError(
+                "A user with this username already exists."
+            )
+        return value
+
+    def validate(self, attrs):
+        """Validate passwords match."""
+        password = attrs.get("password")
+        password_confirm = attrs.get("password_confirm")
+
+        if password != password_confirm:
+            raise serializers.ValidationError(
+                {"password_confirm": "Passwords do not match."}
+            )
+
+        return attrs
+
+    def create(self, validated_data):
+        """Create user with validated data."""
+        validated_data.pop("password_confirm", None)
+        password = validated_data.pop("password")
+
+        # Use type: ignore for Django's create_user method which isn't properly typed
+        user = UserModel.objects.create_user(  # type: ignore[attr-defined]
+            password=password, **validated_data
+        )
+
+        return user
+
+
+class SignupOutputSerializer(serializers.Serializer):
+    """Output serializer for successful signup."""
+
+    token = serializers.CharField()
+    user = UserOutputSerializer()
+    message = serializers.CharField()
+
+
+class PasswordResetInputSerializer(serializers.Serializer):
+    """Input serializer for password reset request."""
+
+    email = serializers.EmailField()
+
+    def validate_email(self, value):
+        """Validate email exists."""
+        try:
+            user = UserModel.objects.get(email=value)
+            self.user = user
+            return value
+        except UserModel.DoesNotExist:
+            # Don't reveal if email exists or not for security
+            return value
+
+    def save(self, **kwargs):
+        """Send password reset email if user exists."""
+        if hasattr(self, "user"):
+            # Create password reset token
+            token = get_random_string(64)
+            # Note: PasswordReset model would need to be imported
+            # PasswordReset.objects.update_or_create(...)
+            pass
+
+
+class PasswordResetOutputSerializer(serializers.Serializer):
+    """Output serializer for password reset request."""
+
+    detail = serializers.CharField()
+
+
+class PasswordChangeInputSerializer(serializers.Serializer):
+    """Input serializer for password change."""
+
+    old_password = serializers.CharField(
+        max_length=128, style={"input_type": "password"}
+    )
+    new_password = serializers.CharField(
+        max_length=128,
+        validators=[validate_password],
+        style={"input_type": "password"},
+    )
+    new_password_confirm = serializers.CharField(
+        max_length=128, style={"input_type": "password"}
+    )
+
+    def validate_old_password(self, value):
+        """Validate old password is correct."""
+        user = self.context["request"].user
+        if not user.check_password(value):
+            raise serializers.ValidationError("Old password is incorrect.")
+        return value
+
+    def validate(self, attrs):
+        """Validate new passwords match."""
+        new_password = attrs.get("new_password")
+        new_password_confirm = attrs.get("new_password_confirm")
+
+        if new_password != new_password_confirm:
+            raise serializers.ValidationError(
+                {"new_password_confirm": "New passwords do not match."}
+            )
+
+        return attrs
+
+    def save(self, **kwargs):
+        """Change user password."""
+        user = self.context["request"].user
+        # validated_data is guaranteed to exist after is_valid() is called
+        new_password = self.validated_data["new_password"]  # type: ignore[index]
+
+        user.set_password(new_password)
+        user.save()
+
+        return user
+
+
+class PasswordChangeOutputSerializer(serializers.Serializer):
+    """Output serializer for password change."""
+
+    detail = serializers.CharField()
+
+
+class LogoutOutputSerializer(serializers.Serializer):
+    """Output serializer for logout."""
+
+    message = serializers.CharField()
+
+
+class SocialProviderOutputSerializer(serializers.Serializer):
+    """Output serializer for social authentication providers."""
+
+    id = serializers.CharField()
+    name = serializers.CharField()
+    authUrl = serializers.URLField()
+
+
+class AuthStatusOutputSerializer(serializers.Serializer):
+    """Output serializer for authentication status check."""
+
+    authenticated = serializers.BooleanField()
+    user = UserOutputSerializer(allow_null=True)

backend/apps/api/v1/serializers/companies.py

@@ -0,0 +1,149 @@
+"""
+Companies and ride models domain serializers for ThrillWiki API v1.
+
+This module contains all serializers related to companies that operate parks
+or manufacture rides, as well as ride model serializers.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+from .shared import CATEGORY_CHOICES, ModelChoices
+
+
+# === COMPANY SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Company Example",
+            summary="Example company response",
+            description="A company that operates parks or manufactures rides",
+            value={
+                "id": 1,
+                "name": "Cedar Fair",
+                "slug": "cedar-fair",
+                "roles": ["OPERATOR", "PROPERTY_OWNER"],
+                "description": "Theme park operator based in Ohio",
+                "website": "https://cedarfair.com",
+                "founded_date": "1983-01-01",
+                "rides_count": 0,
+                "coasters_count": 0,
+            },
+        )
+    ]
+)
+class CompanyDetailOutputSerializer(serializers.Serializer):
+    """Output serializer for company details."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    roles = serializers.ListField(child=serializers.CharField())
+    description = serializers.CharField()
+    website = serializers.URLField()
+    founded_date = serializers.DateField(allow_null=True)
+    rides_count = serializers.IntegerField()
+    coasters_count = serializers.IntegerField()
+
+    # Metadata
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+
+class CompanyCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating companies."""
+
+    name = serializers.CharField(max_length=255)
+    roles = serializers.ListField(
+        child=serializers.ChoiceField(choices=ModelChoices.get_company_role_choices()),
+        allow_empty=False,
+    )
+    description = serializers.CharField(allow_blank=True, default="")
+    website = serializers.URLField(required=False, allow_blank=True)
+    founded_date = serializers.DateField(required=False, allow_null=True)
+
+
+class CompanyUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating companies."""
+
+    name = serializers.CharField(max_length=255, required=False)
+    roles = serializers.ListField(
+        child=serializers.ChoiceField(choices=ModelChoices.get_company_role_choices()),
+        required=False,
+    )
+    description = serializers.CharField(allow_blank=True, required=False)
+    website = serializers.URLField(required=False, allow_blank=True)
+    founded_date = serializers.DateField(required=False, allow_null=True)
+
+
+# === RIDE MODEL SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Ride Model Example",
+            summary="Example ride model response",
+            description="A specific model/type of ride manufactured by a company",
+            value={
+                "id": 1,
+                "name": "Dive Coaster",
+                "description": "A roller coaster featuring a near-vertical drop",
+                "category": "RC",
+                "manufacturer": {
+                    "id": 1,
+                    "name": "Bolliger & Mabillard",
+                    "slug": "bolliger-mabillard",
+                },
+            },
+        )
+    ]
+)
+class RideModelDetailOutputSerializer(serializers.Serializer):
+    """Output serializer for ride model details."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    description = serializers.CharField()
+    category = serializers.CharField()
+
+    # Manufacturer info
+    manufacturer = serializers.SerializerMethodField()
+
+    # Metadata
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+    @extend_schema_field(serializers.DictField(allow_null=True))
+    def get_manufacturer(self, obj) -> dict | None:
+        if obj.manufacturer:
+            return {
+                "id": obj.manufacturer.id,
+                "name": obj.manufacturer.name,
+                "slug": obj.manufacturer.slug,
+            }
+        return None
+
+
+class RideModelCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating ride models."""
+
+    name = serializers.CharField(max_length=255)
+    description = serializers.CharField(allow_blank=True, default="")
+    category = serializers.ChoiceField(choices=CATEGORY_CHOICES, required=False)
+    manufacturer_id = serializers.IntegerField(required=False, allow_null=True)
+
+
+class RideModelUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating ride models."""
+
+    name = serializers.CharField(max_length=255, required=False)
+    description = serializers.CharField(allow_blank=True, required=False)
+    category = serializers.ChoiceField(choices=CATEGORY_CHOICES, required=False)
+    manufacturer_id = serializers.IntegerField(required=False, allow_null=True)

backend/apps/api/v1/serializers/history.py

@@ -0,0 +1,187 @@
+"""
+History domain serializers for ThrillWiki API v1.
+
+This module contains serializers for history tracking and timeline functionality
+using django-pghistory.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import extend_schema_serializer, extend_schema_field
+import pghistory.models
+
+
+class ParkHistoryEventSerializer(serializers.Serializer):
+    """Serializer for park history events."""
+
+    pgh_id = serializers.IntegerField(read_only=True)
+    pgh_created_at = serializers.DateTimeField(read_only=True)
+    pgh_label = serializers.CharField(read_only=True)
+    pgh_obj_id = serializers.IntegerField(read_only=True)
+    pgh_context = serializers.JSONField(read_only=True, allow_null=True)
+    pgh_data = serializers.JSONField(read_only=True)
+    event_type = serializers.SerializerMethodField()
+    changes = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.CharField())
+    def get_event_type(self, obj) -> str:
+        """Get human-readable event type."""
+        return obj.pgh_label.replace("_", " ").title()
+
+    @extend_schema_field(serializers.DictField())
+    def get_changes(self, obj) -> dict:
+        """Get changes made in this event."""
+        if hasattr(obj, "pgh_diff") and obj.pgh_diff:
+            return obj.pgh_diff
+        return {}
+
+
+class RideHistoryEventSerializer(serializers.Serializer):
+    """Serializer for ride history events."""
+
+    pgh_id = serializers.IntegerField(read_only=True)
+    pgh_created_at = serializers.DateTimeField(read_only=True)
+    pgh_label = serializers.CharField(read_only=True)
+    pgh_obj_id = serializers.IntegerField(read_only=True)
+    pgh_context = serializers.JSONField(read_only=True, allow_null=True)
+    pgh_data = serializers.JSONField(read_only=True)
+    event_type = serializers.SerializerMethodField()
+    changes = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.CharField())
+    def get_event_type(self, obj) -> str:
+        """Get human-readable event type."""
+        return obj.pgh_label.replace("_", " ").title()
+
+    @extend_schema_field(serializers.DictField())
+    def get_changes(self, obj) -> dict:
+        """Get changes made in this event."""
+        if hasattr(obj, "pgh_diff") and obj.pgh_diff:
+            return obj.pgh_diff
+        return {}
+
+
+class HistorySummarySerializer(serializers.Serializer):
+    """Serializer for history summary information."""
+
+    total_events = serializers.IntegerField()
+    first_recorded = serializers.DateTimeField(allow_null=True)
+    last_modified = serializers.DateTimeField(allow_null=True)
+
+
+class ParkHistoryOutputSerializer(serializers.Serializer):
+    """Output serializer for complete park history."""
+
+    park = serializers.SerializerMethodField()
+    current_state = serializers.SerializerMethodField()
+    summary = HistorySummarySerializer()
+    events = ParkHistoryEventSerializer(many=True)
+
+    @extend_schema_field(serializers.DictField())
+    def get_park(self, obj) -> dict:
+        """Get basic park information."""
+        park = obj.get("park")
+        if park:
+            return {
+                "id": park.id,
+                "name": park.name,
+                "slug": park.slug,
+                "status": park.status,
+            }
+        return {}
+
+    @extend_schema_field(serializers.DictField())
+    def get_current_state(self, obj) -> dict:
+        """Get current park state."""
+        park = obj.get("current_state")
+        if park:
+            return {
+                "id": park.id,
+                "name": park.name,
+                "slug": park.slug,
+                "status": park.status,
+                "opening_date": (
+                    park.opening_date.isoformat()
+                    if hasattr(park, "opening_date") and park.opening_date
+                    else None
+                ),
+                "coaster_count": getattr(park, "coaster_count", 0),
+                "ride_count": getattr(park, "ride_count", 0),
+            }
+        return {}
+
+
+class RideHistoryOutputSerializer(serializers.Serializer):
+    """Output serializer for complete ride history."""
+
+    ride = serializers.SerializerMethodField()
+    current_state = serializers.SerializerMethodField()
+    summary = HistorySummarySerializer()
+    events = RideHistoryEventSerializer(many=True)
+
+    @extend_schema_field(serializers.DictField())
+    def get_ride(self, obj) -> dict:
+        """Get basic ride information."""
+        ride = obj.get("ride")
+        if ride:
+            return {
+                "id": ride.id,
+                "name": ride.name,
+                "slug": ride.slug,
+                "park_name": ride.park.name if hasattr(ride, "park") else None,
+                "status": getattr(ride, "status", "UNKNOWN"),
+            }
+        return {}
+
+    @extend_schema_field(serializers.DictField())
+    def get_current_state(self, obj) -> dict:
+        """Get current ride state."""
+        ride = obj.get("current_state")
+        if ride:
+            return {
+                "id": ride.id,
+                "name": ride.name,
+                "slug": ride.slug,
+                "park_name": ride.park.name if hasattr(ride, "park") else None,
+                "status": getattr(ride, "status", "UNKNOWN"),
+                "opening_date": (
+                    ride.opening_date.isoformat()
+                    if hasattr(ride, "opening_date") and ride.opening_date
+                    else None
+                ),
+                "ride_type": getattr(ride, "ride_type", "Unknown"),
+            }
+        return {}
+
+
+class UnifiedHistoryTimelineSerializer(serializers.Serializer):
+    """Serializer for unified history timeline."""
+
+    summary = serializers.SerializerMethodField()
+    events = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_summary(self, obj) -> dict:
+        """Get timeline summary."""
+        return obj.get("summary", {})
+
+    @extend_schema_field(serializers.ListField(child=serializers.DictField()))
+    def get_events(self, obj) -> list:
+        """Get timeline events."""
+        events = obj.get("events", [])
+        event_data = []
+
+        for event in events:
+            event_data.append(
+                {
+                    "pgh_id": event.pgh_id,
+                    "pgh_created_at": event.pgh_created_at,
+                    "pgh_label": event.pgh_label,
+                    "pgh_model": event.pgh_model,
+                    "pgh_obj_id": event.pgh_obj_id,
+                    "pgh_context": event.pgh_context,
+                    "event_type": event.pgh_label.replace("_", " ").title(),
+                    "model_type": event.pgh_model.split(".")[-1].title(),
+                }
+            )
+
+        return event_data

backend/apps/api/v1/serializers/media.py

@@ -0,0 +1,124 @@
+"""
+Media domain serializers for ThrillWiki API v1.
+
+This module contains serializers for photo uploads, media management,
+and related media functionality.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+
+# === MEDIA SERIALIZERS ===
+
+
+class PhotoUploadInputSerializer(serializers.Serializer):
+    """Input serializer for photo uploads."""
+
+    file = serializers.ImageField()
+    caption = serializers.CharField(
+        max_length=500,
+        required=False,
+        allow_blank=True,
+        help_text="Optional caption for the photo",
+    )
+    alt_text = serializers.CharField(
+        max_length=255,
+        required=False,
+        allow_blank=True,
+        help_text="Alt text for accessibility",
+    )
+    is_primary = serializers.BooleanField(
+        default=False, help_text="Whether this should be the primary photo"
+    )
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Photo Detail Example",
+            summary="Example photo detail response",
+            description="A photo with full details",
+            value={
+                "id": 1,
+                "url": "https://example.com/media/photos/ride123.jpg",
+                "thumbnail_url": "https://example.com/media/thumbnails/ride123_thumb.jpg",
+                "caption": "Amazing view of Steel Vengeance",
+                "alt_text": "Steel Vengeance roller coaster with blue sky",
+                "is_primary": True,
+                "uploaded_at": "2024-08-15T10:30:00Z",
+                "uploaded_by": {
+                    "id": 1,
+                    "username": "coaster_photographer",
+                    "display_name": "Coaster Photographer",
+                },
+                "content_type": "Ride",
+                "object_id": 123,
+            },
+        )
+    ]
+)
+class PhotoDetailOutputSerializer(serializers.Serializer):
+    """Output serializer for photo details."""
+
+    id = serializers.IntegerField()
+    url = serializers.URLField()
+    thumbnail_url = serializers.URLField(required=False)
+    caption = serializers.CharField()
+    alt_text = serializers.CharField()
+    is_primary = serializers.BooleanField()
+    uploaded_at = serializers.DateTimeField()
+    content_type = serializers.CharField()
+    object_id = serializers.IntegerField()
+
+    # File metadata
+    file_size = serializers.IntegerField()
+    width = serializers.IntegerField()
+    height = serializers.IntegerField()
+    format = serializers.CharField()
+
+    # Uploader info
+    uploaded_by = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_uploaded_by(self, obj) -> dict:
+        """Get uploader information."""
+        return {
+            "id": obj.uploaded_by.id,
+            "username": obj.uploaded_by.username,
+            "display_name": getattr(
+                obj.uploaded_by, "get_display_name", lambda: obj.uploaded_by.username
+            )(),
+        }
+
+
+class PhotoListOutputSerializer(serializers.Serializer):
+    """Output serializer for photo list view."""
+
+    id = serializers.IntegerField()
+    url = serializers.URLField()
+    thumbnail_url = serializers.URLField(required=False)
+    caption = serializers.CharField()
+    is_primary = serializers.BooleanField()
+    uploaded_at = serializers.DateTimeField()
+    uploaded_by = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_uploaded_by(self, obj) -> dict:
+        """Get uploader information."""
+        return {
+            "id": obj.uploaded_by.id,
+            "username": obj.uploaded_by.username,
+        }
+
+
+class PhotoUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating photos."""
+
+    caption = serializers.CharField(max_length=500, required=False, allow_blank=True)
+    alt_text = serializers.CharField(max_length=255, required=False, allow_blank=True)
+    is_primary = serializers.BooleanField(required=False)

backend/apps/api/v1/serializers/other.py

@@ -0,0 +1,118 @@
+"""
+Statistics, health check, and miscellaneous domain serializers for ThrillWiki API v1.
+
+This module contains serializers for statistics, health checks, and other
+miscellaneous functionality.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+
+# === STATISTICS SERIALIZERS ===
+
+
+class ParkStatsOutputSerializer(serializers.Serializer):
+    """Output serializer for park statistics."""
+
+    total_parks = serializers.IntegerField()
+    operating_parks = serializers.IntegerField()
+    closed_parks = serializers.IntegerField()
+    under_construction = serializers.IntegerField()
+
+    # Averages
+    average_rating = serializers.DecimalField(
+        max_digits=3, decimal_places=2, allow_null=True
+    )
+    average_coaster_count = serializers.DecimalField(
+        max_digits=5, decimal_places=2, allow_null=True
+    )
+
+    # Top countries
+    top_countries = serializers.ListField(child=serializers.DictField())
+
+    # Recently added
+    recently_added_count = serializers.IntegerField()
+
+
+class RideStatsOutputSerializer(serializers.Serializer):
+    """Output serializer for ride statistics."""
+
+    total_rides = serializers.IntegerField()
+    operating_rides = serializers.IntegerField()
+    closed_rides = serializers.IntegerField()
+    under_construction = serializers.IntegerField()
+
+    # By category
+    rides_by_category = serializers.DictField()
+
+    # Averages
+    average_rating = serializers.DecimalField(
+        max_digits=3, decimal_places=2, allow_null=True
+    )
+    average_capacity = serializers.DecimalField(
+        max_digits=8, decimal_places=2, allow_null=True
+    )
+
+    # Top manufacturers
+    top_manufacturers = serializers.ListField(child=serializers.DictField())
+
+    # Recently added
+    recently_added_count = serializers.IntegerField()
+
+
+class ParkReviewOutputSerializer(serializers.Serializer):
+    """Output serializer for park reviews."""
+
+    id = serializers.IntegerField()
+    rating = serializers.IntegerField()
+    title = serializers.CharField()
+    content = serializers.CharField()
+    visit_date = serializers.DateField()
+    created_at = serializers.DateTimeField()
+
+    # User info (limited for privacy)
+    user = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_user(self, obj) -> dict:
+        return {
+            "username": obj.user.username,
+            "display_name": obj.user.get_full_name() or obj.user.username,
+        }
+
+
+# === HEALTH CHECK SERIALIZERS ===
+
+
+class HealthCheckOutputSerializer(serializers.Serializer):
+    """Output serializer for health check responses."""
+
+    status = serializers.ChoiceField(choices=["healthy", "unhealthy"])
+    timestamp = serializers.DateTimeField()
+    version = serializers.CharField()
+    environment = serializers.CharField()
+    response_time_ms = serializers.FloatField()
+    checks = serializers.DictField()
+    metrics = serializers.DictField()
+
+
+class PerformanceMetricsOutputSerializer(serializers.Serializer):
+    """Output serializer for performance metrics."""
+
+    timestamp = serializers.DateTimeField()
+    database_analysis = serializers.DictField()
+    cache_performance = serializers.DictField()
+    recent_slow_queries = serializers.ListField()
+
+
+class SimpleHealthOutputSerializer(serializers.Serializer):
+    """Output serializer for simple health check."""
+
+    status = serializers.ChoiceField(choices=["ok", "error"])
+    timestamp = serializers.DateTimeField()
+    error = serializers.CharField(required=False)

backend/apps/api/v1/serializers/parks.py

@@ -0,0 +1,448 @@
+"""
+Parks domain serializers for ThrillWiki API v1.
+
+This module contains all serializers related to parks, park areas, park locations,
+and park search functionality.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+from .shared import LocationOutputSerializer, CompanyOutputSerializer, ModelChoices
+
+
+# === PARK SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Park List Example",
+            summary="Example park list response",
+            description="A typical park in the list view",
+            value={
+                "id": 1,
+                "name": "Cedar Point",
+                "slug": "cedar-point",
+                "status": "OPERATING",
+                "description": "America's Roller Coast",
+                "average_rating": 4.5,
+                "coaster_count": 17,
+                "ride_count": 70,
+                "location": {
+                    "city": "Sandusky",
+                    "state": "Ohio",
+                    "country": "United States",
+                },
+                "operator": {"id": 1, "name": "Cedar Fair", "slug": "cedar-fair"},
+            },
+        )
+    ]
+)
+class ParkListOutputSerializer(serializers.Serializer):
+    """Output serializer for park list view."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    status = serializers.CharField()
+    description = serializers.CharField()
+
+    # Statistics
+    average_rating = serializers.DecimalField(
+        max_digits=3, decimal_places=2, allow_null=True
+    )
+    coaster_count = serializers.IntegerField(allow_null=True)
+    ride_count = serializers.IntegerField(allow_null=True)
+
+    # Location (simplified for list view)
+    location = LocationOutputSerializer(allow_null=True)
+
+    # Operator info
+    operator = CompanyOutputSerializer()
+
+    # Metadata
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Park Detail Example",
+            summary="Example park detail response",
+            description="A complete park detail response",
+            value={
+                "id": 1,
+                "name": "Cedar Point",
+                "slug": "cedar-point",
+                "status": "OPERATING",
+                "description": "America's Roller Coast",
+                "opening_date": "1870-01-01",
+                "website": "https://cedarpoint.com",
+                "size_acres": 364.0,
+                "average_rating": 4.5,
+                "coaster_count": 17,
+                "ride_count": 70,
+                "location": {
+                    "latitude": 41.4793,
+                    "longitude": -82.6833,
+                    "city": "Sandusky",
+                    "state": "Ohio",
+                    "country": "United States",
+                },
+                "operator": {"id": 1, "name": "Cedar Fair", "slug": "cedar-fair"},
+            },
+        )
+    ]
+)
+class ParkDetailOutputSerializer(serializers.Serializer):
+    """Output serializer for park detail view."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    status = serializers.CharField()
+    description = serializers.CharField()
+
+    # Details
+    opening_date = serializers.DateField(allow_null=True)
+    closing_date = serializers.DateField(allow_null=True)
+    operating_season = serializers.CharField()
+    size_acres = serializers.DecimalField(
+        max_digits=10, decimal_places=2, allow_null=True
+    )
+    website = serializers.URLField()
+
+    # Statistics
+    average_rating = serializers.DecimalField(
+        max_digits=3, decimal_places=2, allow_null=True
+    )
+    coaster_count = serializers.IntegerField(allow_null=True)
+    ride_count = serializers.IntegerField(allow_null=True)
+
+    # Location (full details)
+    location = LocationOutputSerializer(allow_null=True)
+
+    # Companies
+    operator = CompanyOutputSerializer()
+    property_owner = CompanyOutputSerializer(allow_null=True)
+
+    # Areas
+    areas = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.ListField(child=serializers.DictField()))
+    def get_areas(self, obj):
+        """Get simplified area information."""
+        if hasattr(obj, "areas"):
+            return [
+                {
+                    "id": area.id,
+                    "name": area.name,
+                    "slug": area.slug,
+                    "description": area.description,
+                }
+                for area in obj.areas.all()
+            ]
+        return []
+
+    # Metadata
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+
+class ParkCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating parks."""
+
+    name = serializers.CharField(max_length=255)
+    description = serializers.CharField(allow_blank=True, default="")
+    status = serializers.ChoiceField(
+        choices=ModelChoices.get_park_status_choices(), default="OPERATING"
+    )
+
+    # Optional details
+    opening_date = serializers.DateField(required=False, allow_null=True)
+    closing_date = serializers.DateField(required=False, allow_null=True)
+    operating_season = serializers.CharField(
+        max_length=255, required=False, allow_blank=True
+    )
+    size_acres = serializers.DecimalField(
+        max_digits=10, decimal_places=2, required=False, allow_null=True
+    )
+    website = serializers.URLField(required=False, allow_blank=True)
+
+    # Required operator
+    operator_id = serializers.IntegerField()
+
+    # Optional property owner
+    property_owner_id = serializers.IntegerField(required=False, allow_null=True)
+
+    def validate(self, attrs):
+        """Cross-field validation."""
+        opening_date = attrs.get("opening_date")
+        closing_date = attrs.get("closing_date")
+
+        if opening_date and closing_date and closing_date < opening_date:
+            raise serializers.ValidationError(
+                "Closing date cannot be before opening date"
+            )
+
+        return attrs
+
+
+class ParkUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating parks."""
+
+    name = serializers.CharField(max_length=255, required=False)
+    description = serializers.CharField(allow_blank=True, required=False)
+    status = serializers.ChoiceField(
+        choices=ModelChoices.get_park_status_choices(), required=False
+    )
+
+    # Optional details
+    opening_date = serializers.DateField(required=False, allow_null=True)
+    closing_date = serializers.DateField(required=False, allow_null=True)
+    operating_season = serializers.CharField(
+        max_length=255, required=False, allow_blank=True
+    )
+    size_acres = serializers.DecimalField(
+        max_digits=10, decimal_places=2, required=False, allow_null=True
+    )
+    website = serializers.URLField(required=False, allow_blank=True)
+
+    # Companies
+    operator_id = serializers.IntegerField(required=False)
+    property_owner_id = serializers.IntegerField(required=False, allow_null=True)
+
+    def validate(self, attrs):
+        """Cross-field validation."""
+        opening_date = attrs.get("opening_date")
+        closing_date = attrs.get("closing_date")
+
+        if opening_date and closing_date and closing_date < opening_date:
+            raise serializers.ValidationError(
+                "Closing date cannot be before opening date"
+            )
+
+        return attrs
+
+
+class ParkFilterInputSerializer(serializers.Serializer):
+    """Input serializer for park filtering and search."""
+
+    # Search
+    search = serializers.CharField(required=False, allow_blank=True)
+
+    # Status filter
+    status = serializers.MultipleChoiceField(
+        choices=[], required=False  # Choices set dynamically
+    )
+
+    # Location filters
+    country = serializers.CharField(required=False, allow_blank=True)
+    state = serializers.CharField(required=False, allow_blank=True)
+    city = serializers.CharField(required=False, allow_blank=True)
+
+    # Rating filter
+    min_rating = serializers.DecimalField(
+        max_digits=3,
+        decimal_places=2,
+        required=False,
+        min_value=1,
+        max_value=10,
+    )
+
+    # Size filter
+    min_size_acres = serializers.DecimalField(
+        max_digits=10, decimal_places=2, required=False, min_value=0
+    )
+    max_size_acres = serializers.DecimalField(
+        max_digits=10, decimal_places=2, required=False, min_value=0
+    )
+
+    # Company filters
+    operator_id = serializers.IntegerField(required=False)
+    property_owner_id = serializers.IntegerField(required=False)
+
+    # Ordering
+    ordering = serializers.ChoiceField(
+        choices=[
+            "name",
+            "-name",
+            "opening_date",
+            "-opening_date",
+            "average_rating",
+            "-average_rating",
+            "coaster_count",
+            "-coaster_count",
+            "created_at",
+            "-created_at",
+        ],
+        required=False,
+        default="name",
+    )
+
+
+# === PARK AREA SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Park Area Example",
+            summary="Example park area response",
+            description="A themed area within a park",
+            value={
+                "id": 1,
+                "name": "Tomorrowland",
+                "slug": "tomorrowland",
+                "description": "A futuristic themed area",
+                "park": {"id": 1, "name": "Magic Kingdom", "slug": "magic-kingdom"},
+                "opening_date": "1971-10-01",
+                "closing_date": None,
+            },
+        )
+    ]
+)
+class ParkAreaDetailOutputSerializer(serializers.Serializer):
+    """Output serializer for park areas."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    description = serializers.CharField()
+    opening_date = serializers.DateField(allow_null=True)
+    closing_date = serializers.DateField(allow_null=True)
+
+    # Park info
+    park = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_park(self, obj) -> dict:
+        return {
+            "id": obj.park.id,
+            "name": obj.park.name,
+            "slug": obj.park.slug,
+        }
+
+
+class ParkAreaCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating park areas."""
+
+    name = serializers.CharField(max_length=255)
+    description = serializers.CharField(allow_blank=True, default="")
+    park_id = serializers.IntegerField()
+    opening_date = serializers.DateField(required=False, allow_null=True)
+    closing_date = serializers.DateField(required=False, allow_null=True)
+
+    def validate(self, attrs):
+        """Cross-field validation."""
+        opening_date = attrs.get("opening_date")
+        closing_date = attrs.get("closing_date")
+
+        if opening_date and closing_date and closing_date < opening_date:
+            raise serializers.ValidationError(
+                "Closing date cannot be before opening date"
+            )
+
+        return attrs
+
+
+class ParkAreaUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating park areas."""
+
+    name = serializers.CharField(max_length=255, required=False)
+    description = serializers.CharField(allow_blank=True, required=False)
+    opening_date = serializers.DateField(required=False, allow_null=True)
+    closing_date = serializers.DateField(required=False, allow_null=True)
+
+    def validate(self, attrs):
+        """Cross-field validation."""
+        opening_date = attrs.get("opening_date")
+        closing_date = attrs.get("closing_date")
+
+        if opening_date and closing_date and closing_date < opening_date:
+            raise serializers.ValidationError(
+                "Closing date cannot be before opening date"
+            )
+
+        return attrs
+
+
+# === PARK LOCATION SERIALIZERS ===
+
+
+class ParkLocationOutputSerializer(serializers.Serializer):
+    """Output serializer for park locations."""
+
+    id = serializers.IntegerField()
+    latitude = serializers.FloatField(allow_null=True)
+    longitude = serializers.FloatField(allow_null=True)
+    address = serializers.CharField()
+    city = serializers.CharField()
+    state = serializers.CharField()
+    country = serializers.CharField()
+    postal_code = serializers.CharField()
+    formatted_address = serializers.CharField()
+
+    # Park info
+    park = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_park(self, obj) -> dict:
+        return {
+            "id": obj.park.id,
+            "name": obj.park.name,
+            "slug": obj.park.slug,
+        }
+
+
+class ParkLocationCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating park locations."""
+
+    park_id = serializers.IntegerField()
+    latitude = serializers.FloatField(required=False, allow_null=True)
+    longitude = serializers.FloatField(required=False, allow_null=True)
+    address = serializers.CharField(max_length=255, allow_blank=True, default="")
+    city = serializers.CharField(max_length=100)
+    state = serializers.CharField(max_length=100)
+    country = serializers.CharField(max_length=100)
+    postal_code = serializers.CharField(max_length=20, allow_blank=True, default="")
+
+
+class ParkLocationUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating park locations."""
+
+    latitude = serializers.FloatField(required=False, allow_null=True)
+    longitude = serializers.FloatField(required=False, allow_null=True)
+    address = serializers.CharField(max_length=255, allow_blank=True, required=False)
+    city = serializers.CharField(max_length=100, required=False)
+    state = serializers.CharField(max_length=100, required=False)
+    country = serializers.CharField(max_length=100, required=False)
+    postal_code = serializers.CharField(max_length=20, allow_blank=True, required=False)
+
+
+# === PARKS SEARCH SERIALIZERS ===
+
+
+class ParkSuggestionSerializer(serializers.Serializer):
+    """Serializer for park search suggestions."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    location = serializers.CharField()
+    status = serializers.CharField()
+    coaster_count = serializers.IntegerField()
+
+
+class ParkSuggestionOutputSerializer(serializers.Serializer):
+    """Output serializer for park suggestions."""
+
+    results = ParkSuggestionSerializer(many=True)
+    query = serializers.CharField()
+    count = serializers.IntegerField()

backend/apps/api/v1/serializers/parks_media.py

@@ -0,0 +1,116 @@
+"""
+Park media serializers for ThrillWiki API.
+
+This module contains serializers for park-specific media functionality.
+"""
+
+from rest_framework import serializers
+from apps.parks.models import ParkPhoto
+
+
+class ParkPhotoOutputSerializer(serializers.ModelSerializer):
+    """Output serializer for park photos."""
+
+    uploaded_by_username = serializers.CharField(
+        source='uploaded_by.username', read_only=True)
+    file_size = serializers.ReadOnlyField()
+    dimensions = serializers.ReadOnlyField()
+    park_slug = serializers.CharField(source='park.slug', read_only=True)
+    park_name = serializers.CharField(source='park.name', read_only=True)
+
+    class Meta:
+        model = ParkPhoto
+        fields = [
+            'id',
+            'image',
+            'caption',
+            'alt_text',
+            'is_primary',
+            'is_approved',
+            'created_at',
+            'updated_at',
+            'date_taken',
+            'uploaded_by_username',
+            'file_size',
+            'dimensions',
+            'park_slug',
+            'park_name',
+        ]
+        read_only_fields = [
+            'id',
+            'created_at',
+            'updated_at',
+            'uploaded_by_username',
+            'file_size',
+            'dimensions',
+            'park_slug',
+            'park_name',
+        ]
+
+
+class ParkPhotoCreateInputSerializer(serializers.ModelSerializer):
+    """Input serializer for creating park photos."""
+
+    class Meta:
+        model = ParkPhoto
+        fields = [
+            'image',
+            'caption',
+            'alt_text',
+            'is_primary',
+        ]
+
+
+class ParkPhotoUpdateInputSerializer(serializers.ModelSerializer):
+    """Input serializer for updating park photos."""
+
+    class Meta:
+        model = ParkPhoto
+        fields = [
+            'caption',
+            'alt_text',
+            'is_primary',
+        ]
+
+
+class ParkPhotoListOutputSerializer(serializers.ModelSerializer):
+    """Simplified output serializer for park photo lists."""
+
+    uploaded_by_username = serializers.CharField(
+        source='uploaded_by.username', read_only=True)
+
+    class Meta:
+        model = ParkPhoto
+        fields = [
+            'id',
+            'image',
+            'caption',
+            'is_primary',
+            'is_approved',
+            'created_at',
+            'uploaded_by_username',
+        ]
+        read_only_fields = fields
+
+
+class ParkPhotoApprovalInputSerializer(serializers.Serializer):
+    """Input serializer for photo approval operations."""
+
+    photo_ids = serializers.ListField(
+        child=serializers.IntegerField(),
+        help_text="List of photo IDs to approve"
+    )
+    approve = serializers.BooleanField(
+        default=True,
+        help_text="Whether to approve (True) or reject (False) the photos"
+    )
+
+
+class ParkPhotoStatsOutputSerializer(serializers.Serializer):
+    """Output serializer for park photo statistics."""
+
+    total_photos = serializers.IntegerField()
+    approved_photos = serializers.IntegerField()
+    pending_photos = serializers.IntegerField()
+    has_primary = serializers.BooleanField()
+    recent_uploads = serializers.IntegerField()

backend/apps/api/v1/serializers/rides.py

@@ -0,0 +1,651 @@
+"""
+Rides domain serializers for ThrillWiki API v1.
+
+This module contains all serializers related to rides, roller coaster statistics,
+ride locations, and ride reviews.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+from .shared import ModelChoices
+
+
+# === RIDE SERIALIZERS ===
+
+
+class RideParkOutputSerializer(serializers.Serializer):
+    """Output serializer for ride's park data."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+
+
+class RideModelOutputSerializer(serializers.Serializer):
+    """Output serializer for ride model data."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    description = serializers.CharField()
+    category = serializers.CharField()
+    manufacturer = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField(allow_null=True))
+    def get_manufacturer(self, obj) -> dict | None:
+        if obj.manufacturer:
+            return {
+                "id": obj.manufacturer.id,
+                "name": obj.manufacturer.name,
+                "slug": obj.manufacturer.slug,
+            }
+        return None
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Ride List Example",
+            summary="Example ride list response",
+            description="A typical ride in the list view",
+            value={
+                "id": 1,
+                "name": "Steel Vengeance",
+                "slug": "steel-vengeance",
+                "category": "ROLLER_COASTER",
+                "status": "OPERATING",
+                "description": "Hybrid roller coaster",
+                "park": {"id": 1, "name": "Cedar Point", "slug": "cedar-point"},
+                "average_rating": 4.8,
+                "capacity_per_hour": 1200,
+                "opening_date": "2018-05-05",
+            },
+        )
+    ]
+)
+class RideListOutputSerializer(serializers.Serializer):
+    """Output serializer for ride list view."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    category = serializers.CharField()
+    status = serializers.CharField()
+    description = serializers.CharField()
+
+    # Park info
+    park = RideParkOutputSerializer()
+
+    # Statistics
+    average_rating = serializers.DecimalField(
+        max_digits=3, decimal_places=2, allow_null=True
+    )
+    capacity_per_hour = serializers.IntegerField(allow_null=True)
+
+    # Dates
+    opening_date = serializers.DateField(allow_null=True)
+    closing_date = serializers.DateField(allow_null=True)
+
+    # Metadata
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Ride Detail Example",
+            summary="Example ride detail response",
+            description="A complete ride detail response",
+            value={
+                "id": 1,
+                "name": "Steel Vengeance",
+                "slug": "steel-vengeance",
+                "category": "ROLLER_COASTER",
+                "status": "OPERATING",
+                "description": "Hybrid roller coaster featuring RMC I-Box track",
+                "park": {"id": 1, "name": "Cedar Point", "slug": "cedar-point"},
+                "opening_date": "2018-05-05",
+                "min_height_in": 48,
+                "capacity_per_hour": 1200,
+                "ride_duration_seconds": 150,
+                "average_rating": 4.8,
+                "manufacturer": {
+                    "id": 1,
+                    "name": "Rocky Mountain Construction",
+                    "slug": "rocky-mountain-construction",
+                },
+            },
+        )
+    ]
+)
+class RideDetailOutputSerializer(serializers.Serializer):
+    """Output serializer for ride detail view."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    category = serializers.CharField()
+    status = serializers.CharField()
+    post_closing_status = serializers.CharField(allow_null=True)
+    description = serializers.CharField()
+
+    # Park info
+    park = RideParkOutputSerializer()
+    park_area = serializers.SerializerMethodField()
+
+    # Dates
+    opening_date = serializers.DateField(allow_null=True)
+    closing_date = serializers.DateField(allow_null=True)
+    status_since = serializers.DateField(allow_null=True)
+
+    # Physical specs
+    min_height_in = serializers.IntegerField(allow_null=True)
+    max_height_in = serializers.IntegerField(allow_null=True)
+    capacity_per_hour = serializers.IntegerField(allow_null=True)
+    ride_duration_seconds = serializers.IntegerField(allow_null=True)
+
+    # Statistics
+    average_rating = serializers.DecimalField(
+        max_digits=3, decimal_places=2, allow_null=True
+    )
+
+    # Companies
+    manufacturer = serializers.SerializerMethodField()
+    designer = serializers.SerializerMethodField()
+
+    # Model
+    ride_model = RideModelOutputSerializer(allow_null=True)
+
+    # Metadata
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+
+    @extend_schema_field(serializers.DictField(allow_null=True))
+    def get_park_area(self, obj) -> dict | None:
+        if obj.park_area:
+            return {
+                "id": obj.park_area.id,
+                "name": obj.park_area.name,
+                "slug": obj.park_area.slug,
+            }
+        return None
+
+    @extend_schema_field(serializers.DictField(allow_null=True))
+    def get_manufacturer(self, obj) -> dict | None:
+        if obj.manufacturer:
+            return {
+                "id": obj.manufacturer.id,
+                "name": obj.manufacturer.name,
+                "slug": obj.manufacturer.slug,
+            }
+        return None
+
+    @extend_schema_field(serializers.DictField(allow_null=True))
+    def get_designer(self, obj) -> dict | None:
+        if obj.designer:
+            return {
+                "id": obj.designer.id,
+                "name": obj.designer.name,
+                "slug": obj.designer.slug,
+            }
+        return None
+
+
+class RideCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating rides."""
+
+    name = serializers.CharField(max_length=255)
+    description = serializers.CharField(allow_blank=True, default="")
+    category = serializers.ChoiceField(choices=[])  # Choices set dynamically
+    status = serializers.ChoiceField(
+        choices=[], default="OPERATING"
+    )  # Choices set dynamically
+
+    # Required park
+    park_id = serializers.IntegerField()
+
+    # Optional area
+    park_area_id = serializers.IntegerField(required=False, allow_null=True)
+
+    # Optional dates
+    opening_date = serializers.DateField(required=False, allow_null=True)
+    closing_date = serializers.DateField(required=False, allow_null=True)
+    status_since = serializers.DateField(required=False, allow_null=True)
+
+    # Optional specs
+    min_height_in = serializers.IntegerField(
+        required=False, allow_null=True, min_value=30, max_value=90
+    )
+    max_height_in = serializers.IntegerField(
+        required=False, allow_null=True, min_value=30, max_value=90
+    )
+    capacity_per_hour = serializers.IntegerField(
+        required=False, allow_null=True, min_value=1
+    )
+    ride_duration_seconds = serializers.IntegerField(
+        required=False, allow_null=True, min_value=1
+    )
+
+    # Optional companies
+    manufacturer_id = serializers.IntegerField(required=False, allow_null=True)
+    designer_id = serializers.IntegerField(required=False, allow_null=True)
+
+    # Optional model
+    ride_model_id = serializers.IntegerField(required=False, allow_null=True)
+
+    def validate(self, attrs):
+        """Cross-field validation."""
+        # Date validation
+        opening_date = attrs.get("opening_date")
+        closing_date = attrs.get("closing_date")
+
+        if opening_date and closing_date and closing_date < opening_date:
+            raise serializers.ValidationError(
+                "Closing date cannot be before opening date"
+            )
+
+        # Height validation
+        min_height = attrs.get("min_height_in")
+        max_height = attrs.get("max_height_in")
+
+        if min_height and max_height and min_height > max_height:
+            raise serializers.ValidationError(
+                "Minimum height cannot be greater than maximum height"
+            )
+
+        return attrs
+
+
+class RideUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating rides."""
+
+    name = serializers.CharField(max_length=255, required=False)
+    description = serializers.CharField(allow_blank=True, required=False)
+    category = serializers.ChoiceField(
+        choices=[], required=False
+    )  # Choices set dynamically
+    status = serializers.ChoiceField(
+        choices=[], required=False
+    )  # Choices set dynamically
+    post_closing_status = serializers.ChoiceField(
+        choices=ModelChoices.get_ride_post_closing_choices(),
+        required=False,
+        allow_null=True,
+    )
+
+    # Park and area
+    park_id = serializers.IntegerField(required=False)
+    park_area_id = serializers.IntegerField(required=False, allow_null=True)
+
+    # Dates
+    opening_date = serializers.DateField(required=False, allow_null=True)
+    closing_date = serializers.DateField(required=False, allow_null=True)
+    status_since = serializers.DateField(required=False, allow_null=True)
+
+    # Specs
+    min_height_in = serializers.IntegerField(
+        required=False, allow_null=True, min_value=30, max_value=90
+    )
+    max_height_in = serializers.IntegerField(
+        required=False, allow_null=True, min_value=30, max_value=90
+    )
+    capacity_per_hour = serializers.IntegerField(
+        required=False, allow_null=True, min_value=1
+    )
+    ride_duration_seconds = serializers.IntegerField(
+        required=False, allow_null=True, min_value=1
+    )
+
+    # Companies
+    manufacturer_id = serializers.IntegerField(required=False, allow_null=True)
+    designer_id = serializers.IntegerField(required=False, allow_null=True)
+
+    # Model
+    ride_model_id = serializers.IntegerField(required=False, allow_null=True)
+
+    def validate(self, attrs):
+        """Cross-field validation."""
+        # Date validation
+        opening_date = attrs.get("opening_date")
+        closing_date = attrs.get("closing_date")
+
+        if opening_date and closing_date and closing_date < opening_date:
+            raise serializers.ValidationError(
+                "Closing date cannot be before opening date"
+            )
+
+        # Height validation
+        min_height = attrs.get("min_height_in")
+        max_height = attrs.get("max_height_in")
+
+        if min_height and max_height and min_height > max_height:
+            raise serializers.ValidationError(
+                "Minimum height cannot be greater than maximum height"
+            )
+
+        return attrs
+
+
+class RideFilterInputSerializer(serializers.Serializer):
+    """Input serializer for ride filtering and search."""
+
+    # Search
+    search = serializers.CharField(required=False, allow_blank=True)
+
+    # Category filter
+    category = serializers.MultipleChoiceField(
+        choices=[], required=False
+    )  # Choices set dynamically
+
+    # Status filter
+    status = serializers.MultipleChoiceField(
+        choices=[], required=False  # Choices set dynamically
+    )
+
+    # Park filter
+    park_id = serializers.IntegerField(required=False)
+    park_slug = serializers.CharField(required=False, allow_blank=True)
+
+    # Company filters
+    manufacturer_id = serializers.IntegerField(required=False)
+    designer_id = serializers.IntegerField(required=False)
+
+    # Rating filter
+    min_rating = serializers.DecimalField(
+        max_digits=3,
+        decimal_places=2,
+        required=False,
+        min_value=1,
+        max_value=10,
+    )
+
+    # Height filters
+    min_height_requirement = serializers.IntegerField(required=False)
+    max_height_requirement = serializers.IntegerField(required=False)
+
+    # Capacity filter
+    min_capacity = serializers.IntegerField(required=False)
+
+    # Ordering
+    ordering = serializers.ChoiceField(
+        choices=[
+            "name",
+            "-name",
+            "opening_date",
+            "-opening_date",
+            "average_rating",
+            "-average_rating",
+            "capacity_per_hour",
+            "-capacity_per_hour",
+            "created_at",
+            "-created_at",
+        ],
+        required=False,
+        default="name",
+    )
+
+
+# === ROLLER COASTER STATS SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Roller Coaster Stats Example",
+            summary="Example roller coaster statistics",
+            description="Detailed statistics for a roller coaster",
+            value={
+                "id": 1,
+                "ride": {"id": 1, "name": "Steel Vengeance", "slug": "steel-vengeance"},
+                "height_ft": 205.0,
+                "length_ft": 5740.0,
+                "speed_mph": 74.0,
+                "inversions": 4,
+                "ride_time_seconds": 150,
+                "track_material": "HYBRID",
+                "roller_coaster_type": "SITDOWN",
+                "launch_type": "CHAIN",
+            },
+        )
+    ]
+)
+class RollerCoasterStatsOutputSerializer(serializers.Serializer):
+    """Output serializer for roller coaster statistics."""
+
+    id = serializers.IntegerField()
+    height_ft = serializers.DecimalField(
+        max_digits=6, decimal_places=2, allow_null=True
+    )
+    length_ft = serializers.DecimalField(
+        max_digits=7, decimal_places=2, allow_null=True
+    )
+    speed_mph = serializers.DecimalField(
+        max_digits=5, decimal_places=2, allow_null=True
+    )
+    inversions = serializers.IntegerField()
+    ride_time_seconds = serializers.IntegerField(allow_null=True)
+    track_type = serializers.CharField()
+    track_material = serializers.CharField()
+    roller_coaster_type = serializers.CharField()
+    max_drop_height_ft = serializers.DecimalField(
+        max_digits=6, decimal_places=2, allow_null=True
+    )
+    launch_type = serializers.CharField()
+    train_style = serializers.CharField()
+    trains_count = serializers.IntegerField(allow_null=True)
+    cars_per_train = serializers.IntegerField(allow_null=True)
+    seats_per_car = serializers.IntegerField(allow_null=True)
+
+    # Ride info
+    ride = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_ride(self, obj) -> dict:
+        return {
+            "id": obj.ride.id,
+            "name": obj.ride.name,
+            "slug": obj.ride.slug,
+        }
+
+
+class RollerCoasterStatsCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating roller coaster statistics."""
+
+    ride_id = serializers.IntegerField()
+    height_ft = serializers.DecimalField(
+        max_digits=6, decimal_places=2, required=False, allow_null=True
+    )
+    length_ft = serializers.DecimalField(
+        max_digits=7, decimal_places=2, required=False, allow_null=True
+    )
+    speed_mph = serializers.DecimalField(
+        max_digits=5, decimal_places=2, required=False, allow_null=True
+    )
+    inversions = serializers.IntegerField(default=0)
+    ride_time_seconds = serializers.IntegerField(required=False, allow_null=True)
+    track_type = serializers.CharField(max_length=255, allow_blank=True, default="")
+    track_material = serializers.ChoiceField(
+        choices=ModelChoices.get_coaster_track_choices(), default="STEEL"
+    )
+    roller_coaster_type = serializers.ChoiceField(
+        choices=ModelChoices.get_coaster_type_choices(), default="SITDOWN"
+    )
+    max_drop_height_ft = serializers.DecimalField(
+        max_digits=6, decimal_places=2, required=False, allow_null=True
+    )
+    launch_type = serializers.ChoiceField(
+        choices=ModelChoices.get_launch_choices(), default="CHAIN"
+    )
+    train_style = serializers.CharField(max_length=255, allow_blank=True, default="")
+    trains_count = serializers.IntegerField(required=False, allow_null=True)
+    cars_per_train = serializers.IntegerField(required=False, allow_null=True)
+    seats_per_car = serializers.IntegerField(required=False, allow_null=True)
+
+
+class RollerCoasterStatsUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating roller coaster statistics."""
+
+    height_ft = serializers.DecimalField(
+        max_digits=6, decimal_places=2, required=False, allow_null=True
+    )
+    length_ft = serializers.DecimalField(
+        max_digits=7, decimal_places=2, required=False, allow_null=True
+    )
+    speed_mph = serializers.DecimalField(
+        max_digits=5, decimal_places=2, required=False, allow_null=True
+    )
+    inversions = serializers.IntegerField(required=False)
+    ride_time_seconds = serializers.IntegerField(required=False, allow_null=True)
+    track_type = serializers.CharField(max_length=255, allow_blank=True, required=False)
+    track_material = serializers.ChoiceField(
+        choices=ModelChoices.get_coaster_track_choices(), required=False
+    )
+    roller_coaster_type = serializers.ChoiceField(
+        choices=ModelChoices.get_coaster_type_choices(), required=False
+    )
+    max_drop_height_ft = serializers.DecimalField(
+        max_digits=6, decimal_places=2, required=False, allow_null=True
+    )
+    launch_type = serializers.ChoiceField(
+        choices=ModelChoices.get_launch_choices(), required=False
+    )
+    train_style = serializers.CharField(
+        max_length=255, allow_blank=True, required=False
+    )
+    trains_count = serializers.IntegerField(required=False, allow_null=True)
+    cars_per_train = serializers.IntegerField(required=False, allow_null=True)
+    seats_per_car = serializers.IntegerField(required=False, allow_null=True)
+
+
+# === RIDE LOCATION SERIALIZERS ===
+
+
+class RideLocationOutputSerializer(serializers.Serializer):
+    """Output serializer for ride locations."""
+
+    id = serializers.IntegerField()
+    latitude = serializers.FloatField(allow_null=True)
+    longitude = serializers.FloatField(allow_null=True)
+    coordinates = serializers.CharField()
+
+    # Ride info
+    ride = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_ride(self, obj) -> dict:
+        return {
+            "id": obj.ride.id,
+            "name": obj.ride.name,
+            "slug": obj.ride.slug,
+        }
+
+
+class RideLocationCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating ride locations."""
+
+    ride_id = serializers.IntegerField()
+    latitude = serializers.FloatField(required=False, allow_null=True)
+    longitude = serializers.FloatField(required=False, allow_null=True)
+
+
+class RideLocationUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating ride locations."""
+
+    latitude = serializers.FloatField(required=False, allow_null=True)
+    longitude = serializers.FloatField(required=False, allow_null=True)
+
+
+# === RIDE REVIEW SERIALIZERS ===
+
+
+@extend_schema_serializer(
+    examples=[
+        OpenApiExample(
+            "Ride Review Example",
+            summary="Example ride review response",
+            description="A user review of a ride",
+            value={
+                "id": 1,
+                "rating": 9,
+                "title": "Amazing coaster!",
+                "content": "This ride was incredible, the airtime was fantastic.",
+                "visit_date": "2024-08-15",
+                "ride": {"id": 1, "name": "Steel Vengeance", "slug": "steel-vengeance"},
+                "user": {"username": "coaster_fan", "display_name": "Coaster Fan"},
+                "created_at": "2024-08-16T10:30:00Z",
+                "is_published": True,
+            },
+        )
+    ]
+)
+class RideReviewOutputSerializer(serializers.Serializer):
+    """Output serializer for ride reviews."""
+
+    id = serializers.IntegerField()
+    rating = serializers.IntegerField()
+    title = serializers.CharField()
+    content = serializers.CharField()
+    visit_date = serializers.DateField()
+    created_at = serializers.DateTimeField()
+    updated_at = serializers.DateTimeField()
+    is_published = serializers.BooleanField()
+
+    # Ride info
+    ride = serializers.SerializerMethodField()
+    # User info (limited for privacy)
+    user = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_ride(self, obj) -> dict:
+        return {
+            "id": obj.ride.id,
+            "name": obj.ride.name,
+            "slug": obj.ride.slug,
+        }
+
+    @extend_schema_field(serializers.DictField())
+    def get_user(self, obj) -> dict:
+        return {
+            "username": obj.user.username,
+            "display_name": obj.user.get_display_name(),
+        }
+
+
+class RideReviewCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating ride reviews."""
+
+    ride_id = serializers.IntegerField()
+    rating = serializers.IntegerField(min_value=1, max_value=10)
+    title = serializers.CharField(max_length=200)
+    content = serializers.CharField()
+    visit_date = serializers.DateField()
+
+    def validate_visit_date(self, value):
+        """Validate visit date is not in the future."""
+        from django.utils import timezone
+
+        if value > timezone.now().date():
+            raise serializers.ValidationError("Visit date cannot be in the future")
+        return value
+
+
+class RideReviewUpdateInputSerializer(serializers.Serializer):
+    """Input serializer for updating ride reviews."""
+
+    rating = serializers.IntegerField(min_value=1, max_value=10, required=False)
+    title = serializers.CharField(max_length=200, required=False)
+    content = serializers.CharField(required=False)
+    visit_date = serializers.DateField(required=False)
+
+    def validate_visit_date(self, value):
+        """Validate visit date is not in the future."""
+        from django.utils import timezone
+
+        if value and value > timezone.now().date():
+            raise serializers.ValidationError("Visit date cannot be in the future")
+        return value

backend/apps/api/v1/serializers/rides_media.py

@@ -0,0 +1,147 @@
+"""
+Ride media serializers for ThrillWiki API.
+
+This module contains serializers for ride-specific media functionality.
+"""
+
+from rest_framework import serializers
+from apps.rides.models import RidePhoto
+
+
+class RidePhotoOutputSerializer(serializers.ModelSerializer):
+    """Output serializer for ride photos."""
+
+    uploaded_by_username = serializers.CharField(
+        source='uploaded_by.username', read_only=True)
+    file_size = serializers.ReadOnlyField()
+    dimensions = serializers.ReadOnlyField()
+    ride_slug = serializers.CharField(source='ride.slug', read_only=True)
+    ride_name = serializers.CharField(source='ride.name', read_only=True)
+    park_slug = serializers.CharField(source='ride.park.slug', read_only=True)
+    park_name = serializers.CharField(source='ride.park.name', read_only=True)
+
+    class Meta:
+        model = RidePhoto
+        fields = [
+            'id',
+            'image',
+            'caption',
+            'alt_text',
+            'is_primary',
+            'is_approved',
+            'photo_type',
+            'created_at',
+            'updated_at',
+            'date_taken',
+            'uploaded_by_username',
+            'file_size',
+            'dimensions',
+            'ride_slug',
+            'ride_name',
+            'park_slug',
+            'park_name',
+        ]
+        read_only_fields = [
+            'id',
+            'created_at',
+            'updated_at',
+            'uploaded_by_username',
+            'file_size',
+            'dimensions',
+            'ride_slug',
+            'ride_name',
+            'park_slug',
+            'park_name',
+        ]
+
+
+class RidePhotoCreateInputSerializer(serializers.ModelSerializer):
+    """Input serializer for creating ride photos."""
+
+    class Meta:
+        model = RidePhoto
+        fields = [
+            'image',
+            'caption',
+            'alt_text',
+            'photo_type',
+            'is_primary',
+        ]
+
+
+class RidePhotoUpdateInputSerializer(serializers.ModelSerializer):
+    """Input serializer for updating ride photos."""
+
+    class Meta:
+        model = RidePhoto
+        fields = [
+            'caption',
+            'alt_text',
+            'photo_type',
+            'is_primary',
+        ]
+
+
+class RidePhotoListOutputSerializer(serializers.ModelSerializer):
+    """Simplified output serializer for ride photo lists."""
+
+    uploaded_by_username = serializers.CharField(
+        source='uploaded_by.username', read_only=True)
+
+    class Meta:
+        model = RidePhoto
+        fields = [
+            'id',
+            'image',
+            'caption',
+            'photo_type',
+            'is_primary',
+            'is_approved',
+            'created_at',
+            'uploaded_by_username',
+        ]
+        read_only_fields = fields
+
+
+class RidePhotoApprovalInputSerializer(serializers.Serializer):
+    """Input serializer for photo approval operations."""
+
+    photo_ids = serializers.ListField(
+        child=serializers.IntegerField(),
+        help_text="List of photo IDs to approve"
+    )
+    approve = serializers.BooleanField(
+        default=True,
+        help_text="Whether to approve (True) or reject (False) the photos"
+    )
+
+
+class RidePhotoStatsOutputSerializer(serializers.Serializer):
+    """Output serializer for ride photo statistics."""
+
+    total_photos = serializers.IntegerField()
+    approved_photos = serializers.IntegerField()
+    pending_photos = serializers.IntegerField()
+    has_primary = serializers.BooleanField()
+    recent_uploads = serializers.IntegerField()
+    by_type = serializers.DictField(
+        child=serializers.IntegerField(),
+        help_text="Photo counts by type"
+    )
+
+
+class RidePhotoTypeFilterSerializer(serializers.Serializer):
+    """Serializer for filtering photos by type."""
+
+    photo_type = serializers.ChoiceField(
+        choices=[
+            ('exterior', 'Exterior View'),
+            ('queue', 'Queue Area'),
+            ('station', 'Station'),
+            ('onride', 'On-Ride'),
+            ('construction', 'Construction'),
+            ('other', 'Other'),
+        ],
+        required=False,
+        help_text="Filter photos by type"
+    )

backend/apps/api/v1/serializers/search.py

@@ -0,0 +1,88 @@
+"""
+Search domain serializers for ThrillWiki API v1.
+
+This module contains serializers for entity search, location search,
+and other search functionality.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+
+# === CORE ENTITY SEARCH SERIALIZERS ===
+
+
+class EntitySearchInputSerializer(serializers.Serializer):
+    """Input serializer for entity search requests."""
+
+    query = serializers.CharField(max_length=255, help_text="Search query string")
+    entity_types = serializers.ListField(
+        child=serializers.ChoiceField(choices=["park", "ride", "company", "user"]),
+        required=False,
+        help_text="Types of entities to search for",
+    )
+    limit = serializers.IntegerField(
+        default=10,
+        min_value=1,
+        max_value=50,
+        help_text="Maximum number of results to return",
+    )
+
+
+class EntitySearchResultSerializer(serializers.Serializer):
+    """Serializer for individual entity search results."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    type = serializers.CharField()
+    description = serializers.CharField()
+    relevance_score = serializers.FloatField()
+
+    # Context-specific info
+    context = serializers.JSONField(help_text="Additional context based on entity type")
+
+
+class EntitySearchOutputSerializer(serializers.Serializer):
+    """Output serializer for entity search results."""
+
+    query = serializers.CharField()
+    total_results = serializers.IntegerField()
+    results = EntitySearchResultSerializer(many=True)
+    search_time_ms = serializers.FloatField()
+
+
+# === LOCATION SEARCH SERIALIZERS ===
+
+
+class LocationSearchResultSerializer(serializers.Serializer):
+    """Serializer for location search results."""
+
+    display_name = serializers.CharField()
+    lat = serializers.FloatField()
+    lon = serializers.FloatField()
+    type = serializers.CharField()
+    importance = serializers.FloatField()
+    address = serializers.JSONField()
+
+
+class LocationSearchOutputSerializer(serializers.Serializer):
+    """Output serializer for location search."""
+
+    results = LocationSearchResultSerializer(many=True)
+    query = serializers.CharField()
+    count = serializers.IntegerField()
+
+
+class ReverseGeocodeOutputSerializer(serializers.Serializer):
+    """Output serializer for reverse geocoding."""
+
+    display_name = serializers.CharField()
+    lat = serializers.FloatField()
+    lon = serializers.FloatField()
+    address = serializers.JSONField()
+    type = serializers.CharField()

backend/apps/api/v1/serializers/services.py

@@ -0,0 +1,229 @@
+"""
+Services domain serializers for ThrillWiki API v1.
+
+This module contains serializers for various services like email, maps,
+history tracking, moderation, and roadtrip planning.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import (
+    extend_schema_serializer,
+    extend_schema_field,
+    OpenApiExample,
+)
+
+
+# === EMAIL SERVICE SERIALIZERS ===
+
+
+class EmailSendInputSerializer(serializers.Serializer):
+    """Input serializer for sending emails."""
+
+    to = serializers.EmailField()
+    subject = serializers.CharField(max_length=255)
+    text = serializers.CharField()
+    html = serializers.CharField(required=False)
+    template = serializers.CharField(required=False)
+    context = serializers.JSONField(required=False)
+
+
+class EmailTemplateOutputSerializer(serializers.Serializer):
+    """Output serializer for email templates."""
+
+    id = serializers.CharField()
+    name = serializers.CharField()
+    subject = serializers.CharField()
+    text_template = serializers.CharField()
+    html_template = serializers.CharField(required=False)
+
+
+# === MAP SERVICE SERIALIZERS ===
+
+
+class MapDataOutputSerializer(serializers.Serializer):
+    """Output serializer for map data."""
+
+    parks = serializers.ListField(child=serializers.DictField())
+    rides = serializers.ListField(child=serializers.DictField())
+    bounds = serializers.DictField()
+    zoom_level = serializers.IntegerField()
+
+
+class CoordinateInputSerializer(serializers.Serializer):
+    """Input serializer for coordinate-based requests."""
+
+    latitude = serializers.FloatField(min_value=-90, max_value=90)
+    longitude = serializers.FloatField(min_value=-180, max_value=180)
+    radius_km = serializers.FloatField(min_value=0, max_value=1000, default=10)
+
+
+# === HISTORY SERIALIZERS ===
+
+
+class HistoryEventSerializer(serializers.Serializer):
+    """Base serializer for history events from pghistory."""
+
+    pgh_id = serializers.IntegerField(read_only=True)
+    pgh_created_at = serializers.DateTimeField(read_only=True)
+    pgh_label = serializers.CharField(read_only=True)
+    pgh_obj_id = serializers.IntegerField(read_only=True)
+    pgh_context = serializers.JSONField(read_only=True, allow_null=True)
+    pgh_diff = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField())
+    def get_pgh_diff(self, obj) -> dict:
+        """Get diff from previous version if available."""
+        if hasattr(obj, "diff_against_previous"):
+            return obj.diff_against_previous()
+        return {}
+
+
+class HistoryEntryOutputSerializer(serializers.Serializer):
+    """Output serializer for history entries."""
+
+    id = serializers.IntegerField()
+    model_type = serializers.CharField()
+    object_id = serializers.IntegerField()
+    object_name = serializers.CharField()
+    action = serializers.CharField()
+    changes = serializers.JSONField()
+    timestamp = serializers.DateTimeField()
+    user = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.DictField(allow_null=True))
+    def get_user(self, obj) -> dict | None:
+        if hasattr(obj, "user") and obj.user:
+            return {
+                "id": obj.user.id,
+                "username": obj.user.username,
+            }
+        return None
+
+
+class HistoryCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating history entries."""
+
+    action = serializers.CharField(max_length=50)
+    description = serializers.CharField(max_length=500)
+    metadata = serializers.JSONField(required=False)
+
+
+# === MODERATION SERIALIZERS ===
+
+
+class ModerationSubmissionSerializer(serializers.Serializer):
+    """Serializer for moderation submissions."""
+
+    submission_type = serializers.ChoiceField(
+        choices=["EDIT", "PHOTO", "REVIEW"], help_text="Type of submission"
+    )
+    content_type = serializers.CharField(help_text="Content type being modified")
+    object_id = serializers.IntegerField(help_text="ID of object being modified")
+    changes = serializers.JSONField(help_text="Changes being submitted")
+    reason = serializers.CharField(
+        max_length=500,
+        required=False,
+        allow_blank=True,
+        help_text="Reason for the changes",
+    )
+
+
+class ModerationSubmissionOutputSerializer(serializers.Serializer):
+    """Output serializer for moderation submission responses."""
+
+    status = serializers.CharField()
+    message = serializers.CharField()
+    submission_id = serializers.IntegerField(required=False)
+    auto_approved = serializers.BooleanField(required=False)
+
+
+# === ROADTRIP SERIALIZERS ===
+
+
+class RoadtripParkSerializer(serializers.Serializer):
+    """Serializer for parks in roadtrip planning."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    latitude = serializers.FloatField()
+    longitude = serializers.FloatField()
+    coaster_count = serializers.IntegerField()
+    status = serializers.CharField()
+
+
+class RoadtripCreateInputSerializer(serializers.Serializer):
+    """Input serializer for creating roadtrips."""
+
+    name = serializers.CharField(max_length=255)
+    park_ids = serializers.ListField(
+        child=serializers.IntegerField(),
+        min_length=2,
+        max_length=10,
+        help_text="List of park IDs (2-10 parks)",
+    )
+    start_date = serializers.DateField(required=False)
+    end_date = serializers.DateField(required=False)
+    notes = serializers.CharField(max_length=1000, required=False, allow_blank=True)
+
+    def validate_park_ids(self, value):
+        """Validate park IDs."""
+        if len(value) < 2:
+            raise serializers.ValidationError("At least 2 parks are required")
+        if len(value) > 10:
+            raise serializers.ValidationError("Maximum 10 parks allowed")
+        if len(set(value)) != len(value):
+            raise serializers.ValidationError("Duplicate park IDs not allowed")
+        return value
+
+
+class RoadtripOutputSerializer(serializers.Serializer):
+    """Output serializer for roadtrip responses."""
+
+    id = serializers.CharField()
+    name = serializers.CharField()
+    parks = RoadtripParkSerializer(many=True)
+    total_distance_miles = serializers.FloatField()
+    estimated_drive_time_hours = serializers.FloatField()
+    route_coordinates = serializers.ListField(
+        child=serializers.ListField(child=serializers.FloatField())
+    )
+    created_at = serializers.DateTimeField()
+
+
+class GeocodeInputSerializer(serializers.Serializer):
+    """Input serializer for geocoding requests."""
+
+    address = serializers.CharField(max_length=500, help_text="Address to geocode")
+
+
+class GeocodeOutputSerializer(serializers.Serializer):
+    """Output serializer for geocoding responses."""
+
+    status = serializers.CharField()
+    coordinates = serializers.JSONField(required=False)
+    formatted_address = serializers.CharField(required=False)
+
+
+# === DISTANCE CALCULATION SERIALIZERS ===
+class DistanceCalculationInputSerializer(serializers.Serializer):
+    """Input serializer for distance calculation requests."""
+
+    park1_id = serializers.IntegerField(help_text="ID of first park")
+    park2_id = serializers.IntegerField(help_text="ID of second park")
+
+    def validate(self, data):
+        """Validate that park IDs are different."""
+        if data["park1_id"] == data["park2_id"]:
+            raise serializers.ValidationError("Park IDs must be different")
+        return data
+
+
+class DistanceCalculationOutputSerializer(serializers.Serializer):
+    """Output serializer for distance calculation responses."""
+
+    status = serializers.CharField()
+    distance_miles = serializers.FloatField(required=False)
+    distance_km = serializers.FloatField(required=False)
+    drive_time_hours = serializers.FloatField(required=False)
+    message = serializers.CharField(required=False)

backend/apps/api/v1/serializers/shared.py

@@ -0,0 +1,159 @@
+"""
+Shared serializers and utilities for ThrillWiki API v1.
+
+This module contains common serializers and helper classes used across multiple domains
+to avoid code duplication and maintain consistency.
+"""
+
+from rest_framework import serializers
+from drf_spectacular.utils import extend_schema_field
+from django.contrib.auth import get_user_model
+
+# Import models inside class methods to avoid Django initialization issues
+
+UserModel = get_user_model()
+
+# Define constants to avoid import-time model loading
+CATEGORY_CHOICES = [
+    ("RC", "Roller Coaster"),
+    ("FL", "Flat Ride"),
+    ("DR", "Dark Ride"),
+    ("WR", "Water Ride"),
+    ("TR", "Transport"),
+    ("OT", "Other"),
+]
+
+
+# Placeholder for dynamic model choices - will be populated at runtime
+class ModelChoices:
+    @staticmethod
+    def get_ride_status_choices():
+        try:
+            from apps.rides.models import Ride
+
+            return Ride.STATUS_CHOICES
+        except ImportError:
+            return [("OPERATING", "Operating"), ("CLOSED", "Closed")]
+
+    @staticmethod
+    def get_park_status_choices():
+        try:
+            from apps.parks.models import Park
+
+            return Park.STATUS_CHOICES
+        except ImportError:
+            return [("OPERATING", "Operating"), ("CLOSED", "Closed")]
+
+    @staticmethod
+    def get_company_role_choices():
+        try:
+            from apps.parks.models import Company
+
+            return Company.CompanyRole.choices
+        except ImportError:
+            return [("OPERATOR", "Operator"), ("MANUFACTURER", "Manufacturer")]
+
+    @staticmethod
+    def get_coaster_track_choices():
+        try:
+            from apps.rides.models import RollerCoasterStats
+
+            return RollerCoasterStats.TRACK_MATERIAL_CHOICES
+        except ImportError:
+            return [("STEEL", "Steel"), ("WOOD", "Wood")]
+
+    @staticmethod
+    def get_coaster_type_choices():
+        try:
+            from apps.rides.models import RollerCoasterStats
+
+            return RollerCoasterStats.COASTER_TYPE_CHOICES
+        except ImportError:
+            return [("SITDOWN", "Sit Down"), ("INVERTED", "Inverted")]
+
+    @staticmethod
+    def get_launch_choices():
+        try:
+            from apps.rides.models import RollerCoasterStats
+
+            return RollerCoasterStats.LAUNCH_CHOICES
+        except ImportError:
+            return [("CHAIN", "Chain Lift"), ("LAUNCH", "Launch")]
+
+    @staticmethod
+    def get_top_list_categories():
+        try:
+            from apps.accounts.models import TopList
+
+            return TopList.Categories.choices
+        except ImportError:
+            return [("RC", "Roller Coasters"), ("PARKS", "Parks")]
+
+    @staticmethod
+    def get_ride_post_closing_choices():
+        try:
+            from apps.rides.models import Ride
+
+            return Ride.POST_CLOSING_STATUS_CHOICES
+        except ImportError:
+            return [
+                ("DEMOLISHED", "Demolished"),
+                ("RELOCATED", "Relocated"),
+                ("SBNO", "Standing But Not Operating"),
+            ]
+
+
+class LocationOutputSerializer(serializers.Serializer):
+    """Shared serializer for location data."""
+
+    latitude = serializers.SerializerMethodField()
+    longitude = serializers.SerializerMethodField()
+    city = serializers.SerializerMethodField()
+    state = serializers.SerializerMethodField()
+    country = serializers.SerializerMethodField()
+    formatted_address = serializers.SerializerMethodField()
+
+    @extend_schema_field(serializers.FloatField(allow_null=True))
+    def get_latitude(self, obj) -> float | None:
+        if hasattr(obj, "location") and obj.location:
+            return obj.location.latitude
+        return None
+
+    @extend_schema_field(serializers.FloatField(allow_null=True))
+    def get_longitude(self, obj) -> float | None:
+        if hasattr(obj, "location") and obj.location:
+            return obj.location.longitude
+        return None
+
+    @extend_schema_field(serializers.CharField(allow_null=True))
+    def get_city(self, obj) -> str | None:
+        if hasattr(obj, "location") and obj.location:
+            return obj.location.city
+        return None
+
+    @extend_schema_field(serializers.CharField(allow_null=True))
+    def get_state(self, obj) -> str | None:
+        if hasattr(obj, "location") and obj.location:
+            return obj.location.state
+        return None
+
+    @extend_schema_field(serializers.CharField(allow_null=True))
+    def get_country(self, obj) -> str | None:
+        if hasattr(obj, "location") and obj.location:
+            return obj.location.country
+        return None
+
+    @extend_schema_field(serializers.CharField())
+    def get_formatted_address(self, obj) -> str:
+        if hasattr(obj, "location") and obj.location:
+            return obj.location.formatted_address
+        return ""
+
+
+class CompanyOutputSerializer(serializers.Serializer):
+    """Shared serializer for company data."""
+
+    id = serializers.IntegerField()
+    name = serializers.CharField()
+    slug = serializers.CharField()
+    roles = serializers.ListField(child=serializers.CharField(), required=False)