feat(ADM-018): completed feature

project/migrations/017_payments.js

@@ -0,0 +1,29 @@
+/** Payment transactions and idempotency. */
+
+/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
+export const up = (pgm) => {
+  pgm.sql(`
+    CREATE TABLE payments_transactions (
+      id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+      provider text NOT NULL,
+      provider_event_id text NOT NULL,
+      provider_payment_id text,
+      order_id uuid,
+      amount_cents integer NOT NULL,
+      currency text NOT NULL DEFAULT 'EUR',
+      status text NOT NULL,
+      raw jsonb NOT NULL DEFAULT '{}'::jsonb,
+      created_at timestamptz NOT NULL DEFAULT now(),
+      CONSTRAINT payments_transactions_amount_non_negative CHECK (amount_cents >= 0),
+      CONSTRAINT payments_transactions_status_check CHECK (status IN ('requires_payment','succeeded','failed','refunded','chargeback')),
+      CONSTRAINT payments_transactions_currency_check CHECK (currency = 'EUR'),
+      CONSTRAINT payments_transactions_provider_event_unique UNIQUE (provider, provider_event_id)
+    )
+  `);
+  pgm.sql('CREATE INDEX payments_transactions_order_id_idx ON payments_transactions (order_id)');
+};
+
+/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
+export const down = (pgm) => {
+  pgm.sql('DROP TABLE IF EXISTS payments_transactions');
+};