import type { CollectionConfig } from 'payload'

import { authenticated } from '../../access/authenticated'
import { authenticatedOrPublished } from '../../access/authenticatedOrPublished'
import { populatePublishedAt } from '../../hooks/populatePublishedAt'
import { generatePreviewPath } from '../../utilities/generatePreviewPath'
import { revalidateDelete, revalidatePage } from './hooks/revalidatePage'

import { FDHeroBlock } from '../../blocks/FDHeroBlock/config'
import { FDCtaSideImageBlock } from '../../blocks/FDCtaSideImageBlock/config'
import { FDFeatureAnnouncementBlock } from '../../blocks/FDFeatureAnnouncementBlock/config'
import { FDServicesGridBlock } from '../../blocks/FDServicesGridBlock/config'
import { FDContactBlock } from '../../blocks/FDContactBlock/config'
import { FDFaqBlock } from '../../blocks/FDFaqBlock/config'
import { FDCardGridBlock } from '../../blocks/FDCardGridBlock/config'
import { FDPricingCardBlock } from '../../blocks/FDPricingCardBlock/config'
import { FDSpacerBlock } from '../../blocks/FDSpacerBlock/config'
import { FDIconBarBlock } from '../../blocks/FDIconBarBlock/config'
import { FDUspChecklistBlock } from '../../blocks/FDUspChecklistBlock/config'
import { FDWideCardBlock } from '../../blocks/FDWideCardBlock/config'
import { FDTechPropertiesBlock } from '../../blocks/FDTechPropertiesBlock/config'
import { FDUspTableBlock } from '../../blocks/FDUspTableBlock/config'
import { FDHeaderTextImageBlock } from '../../blocks/FDHeaderTextImageBlock/config'
import { FDContactFormBlock } from '../../blocks/FDContactFormBlock/config'
import { FDTagsBlock } from '../../blocks/FDTagsBlock/config'
import { FDTextBlock } from '../../blocks/FDTextBlock/config'
import { FDLocationsGridBlock } from '../../blocks/FDLocationsGridBlock/config'
import { FDAlternateHeroBlock } from '../../blocks/FDAlternateHeroBlock/config'
import { FDStatisticsBlock } from '../../blocks/FDStatisticsBlock/config'
import { FDPartnersLogosBlock } from '../../blocks/FDPartnersLogosBlock/config'
import { FDNewsletterBlock } from '../../blocks/FDNewsletterBlock/config'
import { FDServiceChooserBlock } from '../../blocks/FDServiceChooserBlock/config'
import { FDDataTableBlock } from '../../blocks/FDDataTableBlock/config'
import { FDVpsCalculatorBlock } from '../../blocks/FDVpsCalculatorBlock/config'
import { FDCodeEmbedBlock } from '../../blocks/FDCodeEmbedBlock/config'
import { FDVideoBlock } from '../../blocks/FDVideoBlock/config'
import { FDCtaBannerBlock } from '../../blocks/FDCtaBannerBlock/config'
import { FDTestimonialBlock } from '../../blocks/FDTestimonialBlock/config'
import { FDTeamBlock } from '../../blocks/FDTeamBlock/config'
import { FDServiceCalculatorBlock } from '../../blocks/FDServiceCalculatorBlock/config'
import { FDLinkCardsBlock } from '../../blocks/FDLinkCardsBlock/config'
import { FDSpecCardsBlock } from '../../blocks/FDSpecCardsBlock/config'
import { FDQuizBlock } from '../../blocks/FDQuizBlock/config'

import {
  MetaDescriptionField,
  MetaImageField,
  MetaTitleField,
  OverviewField,
  PreviewField,
} from '@payloadcms/plugin-seo/fields'

// ── Slug generator — handles Swedish characters ────────────────────────────────
const generateSlugFromTitle = (value: string): string =>
  value
    .toLowerCase()
    .trim()
    .replace(/[åä]/g, 'a')
    .replace(/ö/g, 'o')
    .replace(/[^a-z0-9]+/g, '-')
    .replace(/^-+|-+$/g, '')

export const Pages: CollectionConfig<'pages'> = {
  slug: 'pages',
  access: {
    create: authenticated,
    delete: authenticated,
    read: authenticatedOrPublished,
    update: authenticated,
  },
  defaultPopulate: {
    title: true,
    slug: true,
  },
  admin: {
    defaultColumns: ['title', 'slug', 'updatedAt'],
    livePreview: {
      url: ({ data, req }) =>
        generatePreviewPath({
          slug: data?.slug,
          collection: 'pages',
          req,
        }),
    },
    preview: (data, { req }) =>
      generatePreviewPath({
        slug: data?.slug as string,
        collection: 'pages',
        req,
      }),
    useAsTitle: 'title',
  },
  fields: [
    {
      name: 'title',
      type: 'text',
      required: true,
    },
    {
      type: 'tabs',
      tabs: [
        {
          fields: [
            {
              name: 'layout',
              type: 'blocks',
              blocks: [
                FDHeroBlock,
                FDCtaSideImageBlock,
                FDFeatureAnnouncementBlock,
                FDServicesGridBlock,
                FDContactBlock,
                FDFaqBlock,
                FDCardGridBlock,
                FDPricingCardBlock,
                FDSpacerBlock,
                FDIconBarBlock,
                FDUspChecklistBlock,
                FDWideCardBlock,
                FDTechPropertiesBlock,
                FDUspTableBlock,
                FDHeaderTextImageBlock,
                FDContactFormBlock,
                FDLocationsGridBlock,
                FDAlternateHeroBlock,
                FDStatisticsBlock,
                FDPartnersLogosBlock,
                FDNewsletterBlock,
                FDServiceChooserBlock,
                FDDataTableBlock,
                FDVpsCalculatorBlock,
                FDServiceCalculatorBlock,
                FDTagsBlock,
                FDTextBlock,
                FDCodeEmbedBlock,
                FDVideoBlock,
                FDCtaBannerBlock,
                FDTestimonialBlock,
                FDTeamBlock,
                FDLinkCardsBlock,
                FDSpecCardsBlock,
                FDQuizBlock,
              ],
              required: true,
              admin: {
                initCollapsed: true,
              },
            },
          ],
          label: 'Innehåll',
        },
        {
          name: 'meta',
          label: 'SEO',
          fields: [
            OverviewField({
              titlePath: 'meta.title',
              descriptionPath: 'meta.description',
              imagePath: 'meta.image',
            }),
            MetaTitleField({
              hasGenerateFn: true,
            }),
            MetaImageField({
              relationTo: 'media',
            }),
            MetaDescriptionField({}),
            PreviewField({
              hasGenerateFn: true,
              titlePath: 'meta.title',
              descriptionPath: 'meta.description',
            }),
          ],
        },
      ],
    },
    {
      name: 'publishedAt',
      type: 'date',
      admin: {
        position: 'sidebar',
      },
    },
    // ── Slug ─────────────────────────────────────────────────────────────────
    {
      name: 'slug',
      type: 'text',
      required: true,
      index: true,
      admin: {
        position: 'sidebar',
        description:
          'Sidans URL-slug, t.ex. "om-oss" → fiberdirekt.se/om-oss. Kan alltid redigeras manuellt. Bocka i "Generera slug" nedan för att skriva om automatiskt från titeln.',
      },
      hooks: {
        beforeChange: [
          ({ data, siblingData, value }) => {
            // Only auto-generate if the checkbox is explicitly checked
            if (siblingData?.generateSlug) {
              return generateSlugFromTitle(data?.title || siblingData?.title || '')
            }
            // Otherwise keep whatever value the editor typed (or the existing value)
            return value
          },
        ],
      },
    },
    // ── Auto-generate toggle ──────────────────────────────────────────────────
    {
      name: 'generateSlug',
      type: 'checkbox',
      label: 'Generera slug automatiskt från titeln',
      defaultValue: true,
      admin: {
        position: 'sidebar',
        description:
          'När ikryssad skrivs slugen om från titeln vid varje sparning. Avbocka för att låsa slugen och redigera den manuellt.',
      },
    },
  ],
  hooks: {
    afterChange: [revalidatePage],
    beforeChange: [populatePublishedAt],
    afterDelete: [revalidateDelete],
  },
  versions: {
    drafts: {
      autosave: {
        interval: 100,
      },
      schedulePublish: true,
    },
    maxPerDoc: 50,
  },
}