import type { CollectionConfig } from 'payload'
import { independentDocListFilter } from '@/payload/admin/localized-list-filter'
import { getDocLocaleDefault, resolveDocLocale, syncDocLocaleWithRequestLocale } from '@/payload/doc-locale-hook'

const statusField = {
  name: 'status',
  label: { en: 'Status', zh: '状态' },
  type: 'select' as const,
  localized: true,
  defaultValue: 'draft',
  options: [
    { label: 'Draft / 草稿', value: 'draft' },
    { label: 'Review / 待审核', value: 'review' },
    { label: 'Published / 已发布', value: 'published' },
    { label: 'Archived / 已归档', value: 'archived' },
  ],
  required: true,
}

export const Downloads: CollectionConfig = {
  slug: 'downloads',
  hooks: {
    beforeChange: [syncDocLocaleWithRequestLocale],
    beforeValidate: [syncDocLocaleWithRequestLocale],
  },
  admin: {
    baseFilter: independentDocListFilter('title'),
    defaultColumns: ['title', 'product', 'type', 'version', 'status', 'updatedAt'],
    description:
      'Firmware packages, manuals, software installers, and release notes tied to products. English and Chinese download entries are maintained as separate documents.',
    group: { en: 'Catalog', zh: '产品' },
    useAsTitle: 'title',
  },
  labels: {
    plural: { en: 'Downloads', zh: '下载' },
    singular: { en: 'Download', zh: '下载条目' },
  },
  access: {
    read: ({ req }) => {
      const locale = resolveDocLocale(req)
      if (!locale) return true
      return { docLocale: { equals: locale } }
    },
  },
  fields: [
    {
      name: 'docLocale',
      label: { en: 'Doc Locale', zh: '文档语言' },
      type: 'select',
      required: true,
      defaultValue: getDocLocaleDefault,
      options: [
        { label: 'English / 英文', value: 'en' },
        { label: '简体中文', value: 'zh' },
      ],
      admin: {
        condition: () => false,
      },
    },
    { name: 'title', label: { en: 'Title', zh: '标题' }, type: 'text', required: true, localized: true },
    {
      name: 'type',
      label: { en: 'Type', zh: '分类' },
      type: 'select',
      localized: true,
      required: true,
      options: [
        { label: 'Firmware / 固件', value: 'firmware' },
        { label: 'Manual / 说明书', value: 'manual' },
        { label: 'Software / 软件', value: 'software' },
        { label: 'Other / 其他', value: 'other' },
      ],
    },
    { name: 'product', label: { en: 'Product', zh: '关联产品' }, type: 'relationship', relationTo: 'products', required: true },
    { name: 'version', label: { en: 'Version', zh: '版本号' }, type: 'text', localized: true },
    { name: 'releaseDate', label: { en: 'Release Date', zh: '发布日期' }, type: 'date', localized: true },
    { name: 'file', label: { en: 'File', zh: '安装包/文件' }, type: 'upload', relationTo: 'files', localized: true },
    { name: 'checksum', label: { en: 'Checksum', zh: '校验值' }, type: 'text', localized: true },
    { name: 'changelog', label: { en: 'Changelog', zh: '更新日志' }, type: 'richText', localized: true },
    { name: 'notes', label: { en: 'Notes', zh: '附加说明' }, type: 'richText', localized: true },
    {
      name: 'visibility',
      label: { en: 'Visibility', zh: '显示设置' },
      type: 'group',
      localized: true,
      fields: [
        {
          name: 'showInDownloadsCenter',
          label: { en: 'Show in Downloads Center', zh: '在下载中心显示' },
          type: 'checkbox',
          defaultValue: true,
          admin: {
            description: 'Controls whether this item appears in the downloads center and per-product download pages.',
          },
        },
      ],
    },
    statusField,
  ],
}