"""
User admin configuration.
"""

from django.contrib import admin
from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
from .models import User, DeviceToken


@admin.register(User)
class UserAdmin(BaseUserAdmin):
    """Admin configuration for User model."""

    list_display = [
        'email', 'username', 'first_name', 'last_name',
        'email_verified', 'is_approved', 'is_staff', 'created_at'
    ]
    list_filter = [
        'email_verified', 'is_approved', 'is_staff',
        'is_superuser', 'is_active', 'created_at'
    ]
    search_fields = ['email', 'username', 'first_name', 'last_name']
    ordering = ['-created_at']
    actions = ['approve_users', 'unapprove_users']

    fieldsets = BaseUserAdmin.fieldsets + (
        ('Profile', {'fields': ('timezone', 'avatar')}),
        ('Preferences', {
            'fields': ('default_reminder_minutes', 'email_notifications', 'push_notifications')
        }),
        ('Verification & Approval', {
            'fields': ('email_verified', 'email_verified_at', 'is_approved', 'approved_by', 'approved_at')
        }),
    )

    readonly_fields = ['email_verified_at', 'approved_by', 'approved_at']

    add_fieldsets = (
        (None, {
            'classes': ('wide',),
            'fields': ('email', 'username', 'password1', 'password2'),
        }),
    )

    def approve_users(self, request, queryset):
        """Approve selected users."""
        from django.utils import timezone
        from .utils import send_approval_notification

        count = 0
        for user in queryset.filter(is_approved=False):
            user.is_approved = True
            user.approved_by = request.user
            user.approved_at = timezone.now()
            user.save(update_fields=['is_approved', 'approved_by', 'approved_at'])

            # Send notification email
            if user.email_notifications:
                try:
                    send_approval_notification(user)
                except Exception:
                    pass  # Don't fail approval if email fails

            count += 1

        self.message_user(request, f'{count} user(s) approved successfully.')

    approve_users.short_description = "Approve selected users"

    def unapprove_users(self, request, queryset):
        """Remove approval from selected users."""
        count = queryset.filter(is_approved=True).update(
            is_approved=False,
            approved_by=None,
            approved_at=None
        )
        self.message_user(request, f'{count} user(s) unapproved.')

    unapprove_users.short_description = "Remove approval from selected users"


@admin.register(DeviceToken)
class DeviceTokenAdmin(admin.ModelAdmin):
    """Admin configuration for DeviceToken model."""

    list_display = ['user', 'platform', 'device_name', 'is_active', 'created_at']
    list_filter = ['platform', 'is_active']
    search_fields = ['user__email', 'device_name']
    ordering = ['-created_at']