import type { CollectionConfig } from 'payload'
import { authenticatedOnly, tenantScopedPublicRead } from '../lib/tenantAccess'

/**
 * Partners Collection
 *
 * Partner, Kunden, Zertifizierungen und Referenzen mit Logos.
 * Vielseitig einsetzbar für Logo-Walls, Referenzen, Zertifikate.
 */
export const Partners: CollectionConfig = {
  slug: 'partners',
  labels: {
    singular: 'Partner',
    plural: 'Partner',
  },
  admin: {
    useAsTitle: 'name',
    group: 'Content',
    defaultColumns: ['name', 'type', 'isFeatured', 'isActive', 'order'],
    description: 'Partner, Kunden, Referenzen und Zertifizierungen',
  },
  access: {
    read: tenantScopedPublicRead,
    create: authenticatedOnly,
    update: authenticatedOnly,
    delete: authenticatedOnly,
  },
  fields: [
    {
      name: 'name',
      type: 'text',
      required: true,
      label: 'Name',
      admin: {
        description: 'Firmen-/Partnername',
      },
    },
    {
      name: 'slug',
      type: 'text',
      required: true,
      unique: true,
      label: 'Slug',
    },
    {
      name: 'type',
      type: 'select',
      required: true,
      defaultValue: 'partner',
      label: 'Typ',
      options: [
        { label: 'Partner', value: 'partner' },
        { label: 'Kunde', value: 'client' },
        { label: 'Referenz', value: 'reference' },
        { label: 'Sponsor', value: 'sponsor' },
        { label: 'Zertifizierung', value: 'certification' },
        { label: 'Mitgliedschaft', value: 'membership' },
        { label: 'Auszeichnung', value: 'award' },
        { label: 'Lieferant', value: 'supplier' },
        { label: 'Technologie', value: 'technology' },
      ],
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'logo',
      type: 'upload',
      relationTo: 'media',
      required: true,
      label: 'Logo',
      admin: {
        description: 'Logo (empfohlen: SVG oder PNG mit transparentem Hintergrund)',
      },
    },
    {
      name: 'logoLight',
      type: 'upload',
      relationTo: 'media',
      label: 'Logo (Hell)',
      admin: {
        description: 'Alternative Version für dunkle Hintergründe',
      },
    },
    {
      name: 'description',
      type: 'textarea',
      label: 'Beschreibung',
      localized: true,
      admin: {
        description: 'Kurze Beschreibung der Partnerschaft',
      },
    },
    {
      name: 'website',
      type: 'text',
      label: 'Website',
    },
    // Für Referenzen/Case Studies
    {
      name: 'caseStudy',
      type: 'group',
      label: 'Case Study / Referenz',
      admin: {
        condition: (_, siblingData) =>
          siblingData?.type === 'client' || siblingData?.type === 'reference',
      },
      fields: [
        {
          name: 'quote',
          type: 'textarea',
          label: 'Zitat',
          localized: true,
        },
        {
          name: 'quotePerson',
          type: 'text',
          label: 'Zitatgeber',
        },
        {
          name: 'quoteRole',
          type: 'text',
          label: 'Position',
        },
        {
          name: 'projectDescription',
          type: 'richText',
          label: 'Projektbeschreibung',
          localized: true,
        },
        {
          name: 'results',
          type: 'array',
          label: 'Ergebnisse/Kennzahlen',
          fields: [
            {
              name: 'metric',
              type: 'text',
              required: true,
              label: 'Kennzahl',
              admin: {
                description: 'z.B. "+50%", "10.000+"',
              },
            },
            {
              name: 'label',
              type: 'text',
              required: true,
              label: 'Beschreibung',
              localized: true,
              admin: {
                description: 'z.B. "Umsatzsteigerung", "Neue Kunden"',
              },
            },
          ],
        },
      ],
    },
    // Für Zertifizierungen
    {
      name: 'certification',
      type: 'group',
      label: 'Zertifizierungs-Details',
      admin: {
        condition: (_, siblingData) =>
          siblingData?.type === 'certification' ||
          siblingData?.type === 'membership' ||
          siblingData?.type === 'award',
      },
      fields: [
        {
          name: 'issuer',
          type: 'text',
          label: 'Aussteller',
        },
        {
          name: 'validFrom',
          type: 'date',
          label: 'Gültig ab',
        },
        {
          name: 'validUntil',
          type: 'date',
          label: 'Gültig bis',
        },
        {
          name: 'certNumber',
          type: 'text',
          label: 'Zertifikatsnummer',
        },
        {
          name: 'document',
          type: 'upload',
          relationTo: 'media',
          label: 'Zertifikat (PDF)',
        },
      ],
    },
    // Kategorisierung
    {
      name: 'category',
      type: 'text',
      label: 'Kategorie',
      admin: {
        description: 'z.B. "Technologie", "Finanzen", "Pflege"',
      },
    },
    {
      name: 'tags',
      type: 'array',
      label: 'Tags',
      fields: [
        {
          name: 'tag',
          type: 'text',
          required: true,
        },
      ],
    },
    // Status
    {
      name: 'isFeatured',
      type: 'checkbox',
      defaultValue: false,
      label: 'Hervorgehoben',
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'isActive',
      type: 'checkbox',
      defaultValue: true,
      label: 'Aktiv',
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'order',
      type: 'number',
      defaultValue: 0,
      label: 'Sortierung',
      admin: {
        position: 'sidebar',
      },
    },
    {
      name: 'since',
      type: 'date',
      label: 'Partner seit',
      admin: {
        position: 'sidebar',
      },
    },
  ],
  hooks: {
    beforeChange: [
      ({ data }) => {
        if (data && !data.slug && data.name) {
          data.slug = data.name
            .toLowerCase()
            .replace(/[äöüß]/g, (match: string) => {
              const map: Record<string, string> = { ä: 'ae', ö: 'oe', ü: 'ue', ß: 'ss' }
              return map[match] || match
            })
            .replace(/[^a-z0-9]+/g, '-')
            .replace(/^-|-$/g, '')
        }
        return data
      },
    ],
  },
}