mnemo_cards/mnemo_cards_backend/lib/database/tables/payments.dart

import 'package:drift/drift.dart';
import 'package:drift_postgres/drift_postgres.dart';
import '../converters.dart' show JsonListConverter, StringListConverter;
import 'users.dart';

/// Таблица Payments - платежи
class Payments extends Table {
  // ID как String, но фактически UUID (генерируется PostgreSQL на стороне БД)
  TextColumn get id => text()
      .withDefault(const CustomExpression('gen_random_uuid()::text'))();
  TextColumn get userId => text()
      .references(Users, #id, onDelete: KeyAction.cascade)();
  
  TextColumn get amount => text()();
  TextColumn get currency => text()();
  
  // Статус и платежная система (enum as string)
  TextColumn get status => text()();  // PaymentStatus
  TextColumn get paymentSystem => text()();  // PaymentSystem
  
  TextColumn get externalToken => text().nullable()();
  TextColumn get meta => text().nullable()();
  
  Column<PgDateTime> get date => customType(PgTypes.timestampWithTimezone)
      .withDefault(now())();
  
  // Продукты (JSON array)
  TextColumn get products => text()
      .withDefault(const Constant('[]'))
      .map(const JsonListConverter())();
  
  // Audit
  Column<PgDateTime> get createdAt => customType(PgTypes.timestampWithTimezone)
      .withDefault(now())();
  Column<PgDateTime> get updatedAt => customType(PgTypes.timestampWithTimezone)
      .withDefault(now())();
  BoolColumn get isDeleted => boolean()
      .withDefault(const Constant(false))
      .customConstraint('')();
  Column<PgDateTime> get deletedAt => customType(PgTypes.timestampWithTimezone)
      .nullable()();
  
  @override
  Set<Column> get primaryKey => {id};
}

// Конвертеры импортированы из converters.dart