"""
Tests for accounts admin interfaces.

These tests verify the functionality of user, profile, email verification,
password reset, and top list admin classes including query optimization
and custom actions.
"""

from django.contrib.admin.sites import AdminSite
from django.contrib.auth import get_user_model
from django.test import RequestFactory, TestCase

from apps.accounts.admin import (
    CustomUserAdmin,
    EmailVerificationAdmin,
    PasswordResetAdmin,
    UserProfileAdmin,
)
from apps.accounts.models import (
    EmailVerification,
    PasswordReset,
    User,
    UserProfile,
)

UserModel = get_user_model()


class TestCustomUserAdmin(TestCase):
    """Tests for CustomUserAdmin class."""

    def setUp(self):
        self.factory = RequestFactory()
        self.site = AdminSite()
        self.admin = CustomUserAdmin(model=User, admin_site=self.site)

    def test_list_display_fields(self):
        """Verify all required fields are in list_display."""
        required_fields = [
            "username",
            "email",
            "get_avatar",
            "get_status_badge",
            "role",
            "date_joined",
        ]
        for field in required_fields:
            assert field in self.admin.list_display

    def test_list_select_related(self):
        """Verify select_related is configured for profile."""
        assert "profile" in self.admin.list_select_related

    def test_list_prefetch_related(self):
        """Verify prefetch_related is configured for groups."""
        assert "groups" in self.admin.list_prefetch_related

    def test_user_actions_registered(self):
        """Verify user management actions are registered."""
        assert "activate_users" in self.admin.actions
        assert "deactivate_users" in self.admin.actions
        assert "ban_users" in self.admin.actions
        assert "unban_users" in self.admin.actions

    def test_export_fields_configured(self):
        """Verify export fields are configured."""
        assert hasattr(self.admin, "export_fields")
        assert "username" in self.admin.export_fields
        assert "email" in self.admin.export_fields


class TestUserProfileAdmin(TestCase):
    """Tests for UserProfileAdmin class."""

    def setUp(self):
        self.factory = RequestFactory()
        self.site = AdminSite()
        self.admin = UserProfileAdmin(model=UserProfile, admin_site=self.site)

    def test_list_select_related(self):
        """Verify select_related for user."""
        assert "user" in self.admin.list_select_related

    def test_recalculate_action(self):
        """Verify recalculate credits action exists."""
        request = self.factory.get("/admin/")
        request.user = UserModel(is_superuser=True)

        actions = self.admin.get_actions(request)
        assert "recalculate_credits" in actions


class TestEmailVerificationAdmin(TestCase):
    """Tests for EmailVerificationAdmin class."""

    def setUp(self):
        self.factory = RequestFactory()
        self.site = AdminSite()
        self.admin = EmailVerificationAdmin(model=EmailVerification, admin_site=self.site)

    def test_list_select_related(self):
        """Verify select_related for user."""
        assert "user" in self.admin.list_select_related

    def test_readonly_fields(self):
        """Verify token fields are readonly."""
        assert "token" in self.admin.readonly_fields
        assert "created_at" in self.admin.readonly_fields

    def test_verification_actions(self):
        """Verify verification actions exist."""
        request = self.factory.get("/admin/")
        request.user = UserModel(is_superuser=True)

        actions = self.admin.get_actions(request)
        assert "resend_verification" in actions
        assert "delete_expired" in actions


class TestPasswordResetAdmin(TestCase):
    """Tests for PasswordResetAdmin class."""

    def setUp(self):
        self.factory = RequestFactory()
        self.site = AdminSite()
        self.admin = PasswordResetAdmin(model=PasswordReset, admin_site=self.site)

    def test_readonly_permissions(self):
        """Verify read-only permissions are set."""
        request = self.factory.get("/admin/")
        request.user = UserModel(is_superuser=False)

        assert self.admin.has_add_permission(request) is False
        assert self.admin.has_change_permission(request) is False

    def test_list_select_related(self):
        """Verify select_related for user."""
        assert "user" in self.admin.list_select_related

    def test_cleanup_action_superuser_only(self):
        """Verify cleanup action is superuser only."""
        request = self.factory.get("/admin/")

        # Non-superuser shouldn't see cleanup action
        request.user = UserModel(is_superuser=False)
        actions = self.admin.get_actions(request)
        assert "cleanup_old_tokens" not in actions

        # Superuser should see cleanup action
        request.user = UserModel(is_superuser=True)
        actions = self.admin.get_actions(request)
        assert "cleanup_old_tokens" in actions
