import { CollectionConfig } from 'payload';

export const Subscriptions: CollectionConfig = {
  slug: 'subscriptions',
  admin: {
    useAsTitle: 'id',
    defaultColumns: ['customer', 'status', 'currentPeriodEnd', 'active'],
    group: 'E-Commerce',
  },
  fields: [
    {
      name: 'stripeSubscriptionId',
      type: 'text',
      unique: true,
      required: true,
      index: true,
      admin: {
        readOnly: true,
      },
    },
    {
      name: 'customer',
      type: 'relationship',
      relationTo: 'customers',
      required: true,
      index: true,
    },
    {
      name: 'user',
      type: 'relationship',
      relationTo: 'users',
      required: true,
      unique: true,
      index: true,
    },
    {
      name: 'prices',
      type: 'relationship',
      relationTo: 'prices',
      hasMany: true,
      required: true,
    },
    {
      name: 'status',
      type: 'select',
      options: [
        { label: 'Active', value: 'active' },
        { label: 'Past Due', value: 'past_due' },
        { label: 'Canceled', value: 'canceled' },
        { label: 'Incomplete', value: 'incomplete' },
        { label: 'Incomplete Expired', value: 'incomplete_expired' },
        { label: 'Trialing', value: 'trialing' },
        { label: 'Unpaid', value: 'unpaid' },
        { label: 'Paused', value: 'paused' },
      ],
      required: true,
      admin: {
        readOnly: true,
      },
    },
    {
      name: 'currentPeriodStart',
      type: 'date',
      required: true,
      admin: {
        readOnly: true,
      },
    },
    {
      name: 'currentPeriodEnd',
      type: 'date',
      required: true,
      index: true,
      admin: {
        readOnly: true,
      },
    },
    {
      name: 'canceledAt',
      type: 'date',
      admin: {
        readOnly: true,
      },
    },
    {
      name: 'cancelAtPeriodEnd',
      type: 'checkbox',
      defaultValue: false,
      admin: {
        readOnly: true,
      },
    },
    {
      name: 'metadata',
      type: 'group',
      fields: [
        {
          name: 'planName',
          type: 'text',
          required: true,
        },
        {
          name: 'conversationCount',
          type: 'number',
          defaultValue: 0,
          admin: {
            description: 'Monthly conversation count for free tier',
          },
        },
        {
          name: 'lastResetDate',
          type: 'date',
        },
      ],
    },
  ],
  hooks: {
    afterChange: [
      async ({ doc, operation, req }) => {
        if (operation === 'create' || operation === 'update') {
          // Update user's subscription reference
          if (doc.user) {
            await req.payload.update({
              collection: 'users',
              id: doc.user,
              data: {
                subscription: doc.id,
              },
            });
          }
        }
      },
    ],
  },
  access: {
    read: ({ req }) => {
      if (!req.user) {
        return false;
      }

      if (req.user.role === 'admin' || req.user.role === 'super-admin') {
        return true;
      }

      return {
        user: {
          equals: req.user.id,
        },
      };
    },
    create: ({ req }) => req.user?.role === 'admin' || req.user?.role === 'super-admin',
    update: ({ req }) => req.user?.role === 'admin' || req.user?.role === 'super-admin',
    delete: () => false, // Never delete subscription records
  },
};