/// PocketBase migration: recurring look-ahead templates.
///
/// Apply on the server (from /opt/pocketbase or wherever the binary lives):
///
///   sudo cp this_file /opt/pocketbase/pb_migrations/
///   sudo chown pocketbase:pocketbase /opt/pocketbase/pb_migrations/*.js
///   sudo -u pocketbase /opt/pocketbase/pocketbase migrate up
///   sudo systemctl restart pocketbase
///
/// Depends on usersapp (same owner rules as labels / tx_meta).
migrate((app) => {
  const users = app.findCollectionByNameOrId("usersapp");

  const ownerRules = {
    listRule: "user = @request.auth.id",
    viewRule: "user = @request.auth.id",
    createRule: "@request.auth.id != '' && user = @request.auth.id",
    updateRule: "user = @request.auth.id",
    deleteRule: "user = @request.auth.id",
  };

  const recurringTemplates = new Collection({
    type: "base",
    name: "recurring_templates",
    ...ownerRules,
    fields: [
      {
        type: "relation",
        name: "user",
        required: true,
        collectionId: users.id,
        cascadeDelete: true,
        maxSelect: 1,
      },
      {
        // App-side RecurringTemplate.id
        type: "text",
        name: "client_id",
        required: true,
        min: 1,
        max: 120,
      },
      {
        type: "text",
        name: "name",
        required: true,
        min: 1,
        max: 400,
      },
      {
        type: "number",
        name: "day_of_month",
        required: true,
      },
      {
        type: "text",
        name: "currency",
        required: true,
        min: 1,
        max: 8,
      },
      {
        // "transaction" | "label"
        type: "text",
        name: "source",
        required: true,
        min: 1,
        max: 32,
      },
      {
        // "lastValue" | "avgLastTxs" | "labelAvgMonths"
        type: "text",
        name: "amount_rule",
        required: true,
        min: 1,
        max: 32,
      },
      {
        type: "text",
        name: "merchant_key",
        required: false,
        max: 500,
      },
      {
        type: "text",
        name: "source_tx_id",
        required: false,
        max: 2000,
      },
      {
        type: "text",
        name: "label_id",
        required: false,
        max: 80,
      },
      {
        type: "number",
        name: "avg_count",
        required: false,
      },
      {
        type: "bool",
        name: "auto_from_recurring",
        required: false,
      },
    ],
    indexes: [
      "CREATE UNIQUE INDEX idx_recurring_templates_user_client ON recurring_templates (user, client_id)",
    ],
  });
  app.save(recurringTemplates);
}, (app) => {
  try {
    const col = app.findCollectionByNameOrId("recurring_templates");
    app.delete(col);
  } catch (_) {}
});