/// PocketBase migration: sync full bank transaction list (BankTransaction rows).
///
/// 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",
  };

  // --- bank transactions (API cache + CSV imports) ---
  // Components are stored so clients can rebuild BankTransaction; tx_id is the
  // clipped BankTransaction.id used for unique upserts (same clip as tx_meta).
  const transactions = new Collection({
    type: "base",
    name: "transactions",
    ...ownerRules,
    fields: [
      {
        type: "relation",
        name: "user",
        required: true,
        collectionId: users.id,
        cascadeDelete: true,
        maxSelect: 1,
      },
      {
        // BankTransaction.id → "date|currency|amount|description" (clipped)
        type: "text",
        name: "tx_id",
        required: true,
        min: 1,
        max: 2000,
      },
      {
        type: "text",
        name: "date",
        required: true,
        min: 1,
        max: 32,
      },
      {
        type: "text",
        name: "description",
        required: true,
        min: 1,
        max: 4000,
      },
      {
        type: "number",
        name: "amount",
        required: true,
      },
      {
        type: "text",
        name: "currency",
        required: true,
        min: 1,
        max: 8,
      },
      {
        type: "bool",
        name: "pending",
        required: false,
      },
    ],
    indexes: [
      "CREATE UNIQUE INDEX idx_transactions_user_tx ON transactions (user, tx_id)",
    ],
  });
  app.save(transactions);
}, (app) => {
  try {
    app.delete(app.findCollectionByNameOrId("transactions"));
  } catch (_) {}
});