Refactor code structure and remove redundant changes

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)