"""
Административная панель для видеоконференций.
"""
from django.contrib import admin
from django.utils.html import format_html
from django.urls import reverse
from .models import VideoRoom, VideoParticipant, VideoCallLog, ScreenRecording


@admin.register(VideoRoom)
class VideoRoomAdmin(admin.ModelAdmin):
    """Админ интерфейс для видеокомнат."""
    
    list_display = [
        'room_id',
        'lesson_title',
        'mentor_link',
        'client_link',
        'status_badge',
        'duration_display',
        'is_recording',
        'created_at'
    ]
    
    list_filter = [
        'status',
        'is_recording',
        'created_at',
        'started_at'
    ]
    
    search_fields = [
        'room_id',
        'lesson__title',
        'mentor__email',
        'mentor__first_name',
        'mentor__last_name',
        'client__email',
        'client__first_name',
        'client__last_name'
    ]
    
    readonly_fields = [
        'room_id',
        'created_at',
        'updated_at',
        'started_at',
        'ended_at',
        'duration',
        'mentor_joined_at',
        'client_joined_at'
    ]
    
    fieldsets = (
        ('Основная информация', {
            'fields': (
                'room_id',
                'lesson',
                'mentor',
                'client',
                'status'
            )
        }),
        ('Время', {
            'fields': (
                'created_at',
                'started_at',
                'ended_at',
                'duration',
                'mentor_joined_at',
                'client_joined_at'
            )
        }),
        ('Запись', {
            'fields': (
                'is_recording',
                'recording_url'
            )
        }),
        ('Техническая информация', {
            'fields': (
                'router_id',
                'max_participants'
            )
        }),
        ('Качество', {
            'fields': (
                'quality_rating',
                'quality_issues'
            )
        })
    )
    
    def lesson_title(self, obj):
        """Название занятия."""
        return obj.lesson.title
    lesson_title.short_description = 'Занятие'
    
    def mentor_link(self, obj):
        """Ссылка на ментора."""
        url = reverse('admin:users_user_change', args=[obj.mentor.id])
        return format_html('<a href="{}">{}</a>', url, obj.mentor.get_full_name())
    mentor_link.short_description = 'Ментор'
    
    def client_link(self, obj):
        """Ссылка на клиента."""
        url = reverse('admin:users_user_change', args=[obj.client.id])
        return format_html('<a href="{}">{}</a>', url, obj.client.get_full_name())
    client_link.short_description = 'Клиент'
    
    def status_badge(self, obj):
        """Бейдж статуса."""
        colors = {
            'waiting': '#ffc107',
            'active': '#28a745',
            'ended': '#6c757d'
        }
        return format_html(
            '<span style="background-color: {}; color: white; padding: 3px 10px; border-radius: 3px;">{}</span>',
            colors.get(obj.status, '#000'),
            obj.get_status_display()
        )
    status_badge.short_description = 'Статус'
    
    def duration_display(self, obj):
        """Отображение длительности."""
        duration = obj.actual_duration
        if duration:
            hours = duration // 3600
            minutes = (duration % 3600) // 60
            seconds = duration % 60
            return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
        return '-'
    duration_display.short_description = 'Длительность'


@admin.register(VideoParticipant)
class VideoParticipantAdmin(admin.ModelAdmin):
    """Админ интерфейс для участников видео."""
    
    list_display = [
        'user_name',
        'room_id',
        'is_connected',
        'is_audio_enabled',
        'is_video_enabled',
        'is_screen_sharing',
        'joined_at',
        'left_at',
        'duration_display'
    ]
    
    list_filter = [
        'is_connected',
        'is_audio_enabled',
        'is_video_enabled',
        'is_screen_sharing',
        'joined_at'
    ]
    
    search_fields = [
        'user__email',
        'user__first_name',
        'user__last_name',
        'room__room_id'
    ]
    
    readonly_fields = [
        'joined_at',
        'left_at',
        'total_duration',
        'reconnection_count'
    ]
    
    def user_name(self, obj):
        """Имя пользователя."""
        return obj.user.get_full_name()
    user_name.short_description = 'Пользователь'
    
    def room_id(self, obj):
        """ID комнаты."""
        return str(obj.room.room_id)[:8]
    room_id.short_description = 'Комната'
    
    def duration_display(self, obj):
        """Отображение длительности."""
        if obj.total_duration:
            hours = obj.total_duration // 3600
            minutes = (obj.total_duration % 3600) // 60
            seconds = obj.total_duration % 60
            return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
        return '-'
    duration_display.short_description = 'Время в звонке'


@admin.register(VideoCallLog)
class VideoCallLogAdmin(admin.ModelAdmin):
    """Админ интерфейс для логов видеозвонков."""
    
    list_display = [
        'room_id',
        'total_participants',
        'duration_display',
        'average_bitrate',
        'packet_loss_rate',
        'connection_issues',
        'created_at'
    ]
    
    list_filter = [
        'created_at',
        'connection_issues',
        'audio_issues',
        'video_issues'
    ]
    
    search_fields = [
        'room__room_id',
        'room__lesson__title'
    ]
    
    readonly_fields = [
        'room',
        'total_participants',
        'total_duration',
        'average_bitrate',
        'packet_loss_rate',
        'average_jitter',
        'connection_issues',
        'audio_issues',
        'video_issues',
        'metadata',
        'created_at'
    ]
    
    def room_id(self, obj):
        """ID комнаты."""
        return str(obj.room.room_id)[:8]
    room_id.short_description = 'Комната'
    
    def duration_display(self, obj):
        """Отображение длительности."""
        if obj.total_duration:
            hours = obj.total_duration // 3600
            minutes = (obj.total_duration % 3600) // 60
            seconds = obj.total_duration % 60
            return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
        return '-'
    duration_display.short_description = 'Длительность'


@admin.register(ScreenRecording)
class ScreenRecordingAdmin(admin.ModelAdmin):
    """Админ интерфейс для записей видео."""
    
    list_display = [
        'room_id',
        'status_badge',
        'file_size_display',
        'duration_display',
        'is_public',
        'expires_at',
        'created_at'
    ]
    
    list_filter = [
        'status',
        'is_public',
        'created_at',
        'processed_at'
    ]
    
    search_fields = [
        'room__room_id',
        'room__lesson__title',
        'file_path'
    ]
    
    readonly_fields = [
        'room',
        'file_size',
        'duration',
        'status',
        'processing_error',
        'created_at',
        'processed_at'
    ]
    
    actions = ['mark_as_public', 'mark_as_private']
    
    def room_id(self, obj):
        """ID комнаты."""
        return str(obj.room.room_id)[:8]
    room_id.short_description = 'Комната'
    
    def status_badge(self, obj):
        """Бейдж статуса."""
        colors = {
            'processing': '#ffc107',
            'ready': '#28a745',
            'failed': '#dc3545'
        }
        return format_html(
            '<span style="background-color: {}; color: white; padding: 3px 10px; border-radius: 3px;">{}</span>',
            colors.get(obj.status, '#000'),
            obj.get_status_display()
        )
    status_badge.short_description = 'Статус'
    
    def file_size_display(self, obj):
        """Отображение размера файла."""
        if obj.file_size:
            size_mb = obj.file_size / (1024 * 1024)
            if size_mb > 1024:
                return f"{size_mb / 1024:.2f} GB"
            return f"{size_mb:.2f} MB"
        return '-'
    file_size_display.short_description = 'Размер'
    
    def duration_display(self, obj):
        """Отображение длительности."""
        if obj.duration:
            hours = obj.duration // 3600
            minutes = (obj.duration % 3600) // 60
            seconds = obj.duration % 60
            return f"{hours:02d}:{minutes:02d}:{seconds:02d}"
        return '-'
    duration_display.short_description = 'Длительность'
    
    @admin.action(description='Сделать публичными')
    def mark_as_public(self, request, queryset):
        """Сделать записи публичными."""
        queryset.update(is_public=True)
    
    @admin.action(description='Сделать приватными')
    def mark_as_private(self, request, queryset):
        """Сделать записи приватными."""
        queryset.update(is_public=False)