edr-platform/apps/edr-payment-api/src/migrations/1782000000000-AmountToDouble.ts

import { MigrationInterface, QueryRunner } from "typeorm";

/**
 * Amounts now carry the real/major price (callers pass e.g. 10.50, not minor units), which may be
 * fractional. Widen amount_minor / confirmed_amount_minor from integer to double precision so the
 * decimals are stored instead of silently rounded.
 */
export class AmountToDouble1782000000000 implements MigrationInterface {
  name = "AmountToDouble1782000000000";

  public async up(queryRunner: QueryRunner): Promise<void> {
    // integer -> double precision is an implicit widening cast (no USING needed).
    await queryRunner.query(
      `ALTER TABLE "edr_payment"."payment_intent" ALTER COLUMN "amount_minor" TYPE double precision`,
    );
    await queryRunner.query(
      `ALTER TABLE "edr_payment"."payment_intent" ALTER COLUMN "confirmed_amount_minor" TYPE double precision`,
    );
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(
      `ALTER TABLE "edr_payment"."payment_intent" ALTER COLUMN "confirmed_amount_minor" TYPE integer USING round("confirmed_amount_minor")`,
    );
    await queryRunner.query(
      `ALTER TABLE "edr_payment"."payment_intent" ALTER COLUMN "amount_minor" TYPE integer USING round("amount_minor")`,
    );
  }
}