import { postgresAdapter } from '@payloadcms/db-postgres'
import { nodemailerAdapter } from '@payloadcms/email-nodemailer'
import { ar } from '@payloadcms/translations/languages/ar'
import { en } from '@payloadcms/translations/languages/en'
import path from 'path'
import { buildConfig } from 'payload'
import sharp from 'sharp'
import { fileURLToPath } from 'url'

import { Courses } from './collections/Courses'
import { Leads } from './collections/Leads'
import { Media } from './collections/Media'
import { Users } from './collections/Users'
import { About, Catalogue, Categories, Contact, Home, Pricing, Privacy, Settings, Terms, WhyUs } from './globals'
import { smtpFromEnv } from './lib/mail'
import { migrations } from './migrations'
import { seedIfEmpty } from './seed'

const dirname = path.dirname(fileURLToPath(import.meta.url))
const smtp = smtpFromEnv()

export default buildConfig({
  serverURL: process.env.SITE_URL || '',
  admin: {
    user: Users.slug,
    importMap: { baseDir: path.resolve(dirname) },
    components: { graphics: { Logo: '/components/admin/Brand#Logo', Icon: '/components/admin/Brand#Icon' } },
    meta: { titleSuffix: ' · Thinkera', icons: [{ rel: 'icon', type: 'image/svg+xml', url: '/brand/favicon.svg' }] },
  },
  // the admin speaks Arabic first; each editor can switch to English from their account
  i18n: { supportedLanguages: { ar, en }, fallbackLanguage: 'ar' },
  localization: {
    locales: [
      { code: 'ar', label: 'العربية', rtl: true },
      { code: 'en', label: 'English' },
    ],
    defaultLocale: 'ar',
    fallback: true,
  },
  // with no SMTP_HOST the messages go to the log instead of the network, which is what a local copy wants
  email: smtp ? nodemailerAdapter(smtp) : undefined,
  collections: [Courses, Leads, Media, Users],
  globals: [Home, Catalogue, Categories, Pricing, About, Contact, Privacy, Terms, WhyUs, Settings],
  secret: process.env.PAYLOAD_SECRET || '',
  typescript: { outputFile: path.resolve(dirname, 'payload-types.ts') },
  db: postgresAdapter({
    pool: { connectionString: process.env.DATABASE_URL || '' },
    // production applies the migrations in src/migrations when the server starts
    prodMigrations: migrations,
    /**
     * Never push the schema automatically, not even outside production.
     *
     * Every schema change here goes through a migration — that is what `prodMigrations` above is
     * for. But Payload's default is to «push» the config straight into the database whenever
     * NODE_ENV is not production, which is how the cms-tools container runs. Each push writes a
     * marker row named «dev» into payload_migrations, and from then on the SITE will not boot:
     * `prodMigrations` sees that marker, asks «data loss will occur, proceed?» on the console, and
     * waits for an answer nobody can give it inside a container. The site answers nothing and
     * serves no pages. That happened twice on 8 October 2026.
     *
     * With push off, the tools container reads and writes rows but never touches the schema, the
     * marker is never written, and a boot is never blocked.
     */
    push: false,
  }),
  sharp,
  onInit: async (payload) => {
    await seedIfEmpty(payload)
  },
})