// src/collections/YouTubeChannels.ts

import type { CollectionConfig } from 'payload'
import { isYouTubeManager, hasYouTubeAccess } from '../lib/youtubeAccess'
import { downloadChannelImage } from '../hooks/youtubeChannels/downloadChannelImage'

/**
 * YouTubeChannels Collection
 *
 * Verwaltet YouTube-Kanäle mit Branding, Content-Serien und Metriken.
 * Teil des YouTube Operations Hub.
 */
export const YouTubeChannels: CollectionConfig = {
  slug: 'youtube-channels',
  labels: {
    singular: 'YouTube-Kanal',
    plural: 'YouTube-Kanäle',
  },
  admin: {
    useAsTitle: 'name',
    group: 'YouTube',
    defaultColumns: ['name', 'youtubeHandle', 'status', 'language'],
    description: 'YouTube-Kanäle und ihre Konfiguration',
  },
  access: {
    read: hasYouTubeAccess,
    create: isYouTubeManager,
    update: isYouTubeManager,
    delete: isYouTubeManager,
  },
  hooks: {
    afterChange: [downloadChannelImage],
  },
  fields: [
    {
      name: 'name',
      type: 'text',
      required: true,
      localized: true,
      label: 'Kanalname',
      admin: {
        description: 'z.B. "BlogWoman by Caroline Porwoll"',
      },
    },
    {
      name: 'slug',
      type: 'text',
      required: true,
      unique: true,
      label: 'Slug',
      admin: {
        description: 'Interner Kurzname (z.B. "blogwoman", "corporate-de")',
      },
    },
    {
      name: 'youtubeChannelId',
      type: 'text',
      required: true,
      label: 'YouTube Channel ID',
      admin: {
        description: 'Die YouTube Channel ID (z.B. "UCxxxxxxxxxxxxx")',
      },
    },
    {
      name: 'youtubeHandle',
      type: 'text',
      label: 'YouTube Handle',
      admin: {
        description: 'z.B. "@blogwoman" oder "@zweitmeinu.ng"',
      },
    },
    {
      name: 'language',
      type: 'select',
      required: true,
      label: 'Sprache',
      options: [
        { label: 'Deutsch', value: 'de' },
        { label: 'Englisch', value: 'en' },
      ],
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'category',
      type: 'select',
      required: true,
      label: 'Kategorie',
      options: [
        { label: 'Lifestyle', value: 'lifestyle' },
        { label: 'Corporate', value: 'corporate' },
        { label: 'Business B2B', value: 'b2b' },
      ],
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'status',
      type: 'select',
      required: true,
      defaultValue: 'active',
      label: 'Status',
      options: [
        { label: 'Aktiv', value: 'active' },
        { label: 'In Planung', value: 'planned' },
        { label: 'Pausiert', value: 'paused' },
        { label: 'Archiviert', value: 'archived' },
      ],
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'channelThumbnailUrl',
      type: 'text',
      label: 'Kanal-Thumbnail URL',
      admin: {
        readOnly: true,
        description: 'Profil-Thumbnail URL von YouTube (automatisch befüllt)',
        position: 'sidebar',
      },
    },
    // Branding
    {
      name: 'branding',
      type: 'group',
      label: 'Branding',
      fields: [
        {
          name: 'primaryColor',
          type: 'text',
          label: 'Primärfarbe (Hex)',
          admin: { description: 'z.B. #1278B3' },
          validate: (value: string | undefined | null) => {
            if (!value) return true
            const hexRegex = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/
            if (!hexRegex.test(value)) {
              return 'Bitte einen gültigen Hex-Farbcode eingeben (z.B. #1278B3)'
            }
            return true
          },
        },
        {
          name: 'secondaryColor',
          type: 'text',
          label: 'Sekundärfarbe (Hex)',
          validate: (value: string | undefined | null) => {
            if (!value) return true
            const hexRegex = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/
            if (!hexRegex.test(value)) {
              return 'Bitte einen gültigen Hex-Farbcode eingeben'
            }
            return true
          },
        },
        {
          name: 'logo',
          type: 'upload',
          relationTo: 'media',
          label: 'Logo',
        },
        {
          name: 'thumbnailTemplate',
          type: 'upload',
          relationTo: 'media',
          label: 'Thumbnail-Vorlage',
        },
      ],
    },
    // Content-Serien sind jetzt in der YtSeries Collection verwaltet
    // Siehe: YouTube → YouTube-Serien
    // Veröffentlichungsplan
    {
      name: 'publishingSchedule',
      type: 'group',
      label: 'Veröffentlichungsplan',
      fields: [
        {
          name: 'defaultDays',
          type: 'select',
          hasMany: true,
          label: 'Standard-Tage',
          options: [
            { label: 'Montag', value: 'monday' },
            { label: 'Dienstag', value: 'tuesday' },
            { label: 'Mittwoch', value: 'wednesday' },
            { label: 'Donnerstag', value: 'thursday' },
            { label: 'Freitag', value: 'friday' },
            { label: 'Samstag', value: 'saturday' },
            { label: 'Sonntag', value: 'sunday' },
          ],
        },
        {
          name: 'defaultTime',
          type: 'text',
          label: 'Standard-Uhrzeit',
          admin: { description: 'z.B. "12:00"' },
        },
        {
          name: 'shortsPerWeek',
          type: 'number',
          defaultValue: 4,
          label: 'Shorts pro Woche',
        },
        {
          name: 'longformPerWeek',
          type: 'number',
          defaultValue: 1,
          label: 'Longform pro Woche',
        },
      ],
    },
    // Metriken (via YouTube API Sync)
    {
      name: 'currentMetrics',
      type: 'group',
      label: 'Aktuelle Metriken',
      admin: {
        description: 'Automatisch via YouTube API aktualisiert',
      },
      fields: [
        { name: 'subscriberCount', type: 'number', label: 'Abonnenten', admin: { readOnly: true } },
        { name: 'totalViews', type: 'number', label: 'Gesamtaufrufe', admin: { readOnly: true } },
        { name: 'videoCount', type: 'number', label: 'Anzahl Videos', admin: { readOnly: true } },
        { name: 'lastSyncedAt', type: 'date', label: 'Letzter Sync', admin: { readOnly: true } },
      ],
    },
  ],
  timestamps: true,
}