Casha/lib/data/database/tables.dart

import 'package:drift/drift.dart';

/// Transactions table
class Transactions extends Table {
  TextColumn get id => text()();
  RealColumn get amount => real()();
  TextColumn get category => text()();
  TextColumn get type => text()(); // 'income' or 'expense'
  DateTimeColumn get date => dateTime()();
  TextColumn get note => text().nullable()();
  TextColumn get recurrence => text().withDefault(const Constant('none'))();
  DateTimeColumn get lastOccurrence => dateTime().nullable()();
  TextColumn get currency => text().withDefault(const Constant('\$'))();
  TextColumn get currencyCode => text().withDefault(const Constant('USD'))();
  DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();

  @override
  Set<Column> get primaryKey => {id};
}

/// Categories table for custom categories
class Categories extends Table {
  IntColumn get id => integer().autoIncrement()();
  TextColumn get name => text().withLength(min: 1, max: 50)();
  TextColumn get type => text()(); // 'income' or 'expense'
  TextColumn get icon => text().nullable()();
  TextColumn get color => text().nullable()();
  BoolColumn get isDefault => boolean().withDefault(const Constant(false))();
  DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();
}

/// Budgets table for monthly budgets
class Budgets extends Table {
  IntColumn get id => integer().autoIncrement()();
  RealColumn get amount => real()();
  TextColumn get categoryId => text().nullable()();
  IntColumn get month => integer()();
  IntColumn get year => integer()();
  DateTimeColumn get createdAt => dateTime().withDefault(currentDateAndTime)();
}

/// Exchange rates cache
class ExchangeRates extends Table {
  IntColumn get id => integer().autoIncrement()();
  TextColumn get fromCurrency => text()();
  TextColumn get toCurrency => text()();
  RealColumn get rate => real()();
  DateTimeColumn get updatedAt => dateTime().withDefault(currentDateAndTime)();
}