from django.contrib import admin
from django.utils.html import format_html
from simple_history.admin import SimpleHistoryAdmin

from .models import EmailConfiguration, EmailLog


@admin.register(EmailConfiguration)
class EmailConfigurationAdmin(SimpleHistoryAdmin):
    list_display = [
        'name',
        'is_enabled_badge',
        'recipient_count',
        'notify_on_scrape_complete',
        'notify_on_scrape_failure',
        'notify_on_sync_failure',
    ]
    list_filter = ['is_enabled']
    readonly_fields = ['created_at', 'updated_at']

    fieldsets = [
        (None, {
            'fields': ['name', 'is_enabled']
        }),
        ('Recipients', {
            'fields': ['recipient_emails']
        }),
        ('Scraper Notifications', {
            'fields': [
                'notify_on_scrape_complete',
                'notify_on_scrape_failure',
                'notify_on_new_reviews',
            ]
        }),
        ('CloudKit Sync Notifications', {
            'fields': [
                'notify_on_sync_complete',
                'notify_on_sync_failure',
            ]
        }),
        ('Thresholds', {
            'fields': ['min_games_for_notification']
        }),
        ('Metadata', {
            'fields': ['created_at', 'updated_at'],
            'classes': ['collapse']
        }),
    ]

    actions = ['send_test_email']

    def is_enabled_badge(self, obj):
        if obj.is_enabled:
            return format_html('<span style="color: green;">● Enabled</span>')
        return format_html('<span style="color: gray;">○ Disabled</span>')
    is_enabled_badge.short_description = 'Status'

    def recipient_count(self, obj):
        return len(obj.get_recipients())
    recipient_count.short_description = 'Recipients'

    @admin.action(description='Send test email')
    def send_test_email(self, request, queryset):
        from notifications.tasks import send_test_notification
        for config in queryset:
            send_test_notification.delay(config.id)
        self.message_user(request, f'Test emails queued for {queryset.count()} configurations.')


@admin.register(EmailLog)
class EmailLogAdmin(admin.ModelAdmin):
    list_display = [
        'subject',
        'status_badge',
        'recipients_display',
        'created_at',
    ]
    list_filter = ['status', 'created_at']
    search_fields = ['subject', 'recipients']
    date_hierarchy = 'created_at'
    ordering = ['-created_at']
    readonly_fields = [
        'configuration',
        'subject',
        'recipients',
        'body_preview',
        'status',
        'error_message',
        'scrape_job',
        'sync_job',
        'created_at',
    ]

    def has_add_permission(self, request):
        return False

    def has_change_permission(self, request, obj=None):
        return False

    def status_badge(self, obj):
        colors = {
            'sent': '#5cb85c',
            'failed': '#d9534f',
        }
        color = colors.get(obj.status, '#999')
        return format_html(
            '<span style="background-color: {}; color: white; padding: 3px 8px; '
            'border-radius: 3px; font-size: 11px;">{}</span>',
            color,
            obj.status.upper()
        )
    status_badge.short_description = 'Status'

    def recipients_display(self, obj):
        recipients = obj.recipients.split(',')
        if len(recipients) > 2:
            return f"{recipients[0]}, +{len(recipients)-1} more"
        return obj.recipients
    recipients_display.short_description = 'Recipients'