import 'package:drift/drift.dart';
import 'package:drift/native.dart';
import 'package:drift_docs/snippets/migrations/datetime_conversion.dart';
import 'package:test/test.dart';

import 'generated/database.dart';

/// Test for some snippets embedded on https://drift.simonbinder.eu to make sure
/// that they are still up to date and work as intended with the latest drift
/// version.
void main() {
  group('changing datetime format', () {
    test('unix timestamp to text', () async {
      final db = Database.connect(DatabaseConnection(NativeDatabase.memory()));
      addTearDown(db.close);

      final time = DateTime.fromMillisecondsSinceEpoch(
        // Drop milliseconds which are not supported by the old format
        1000 * (DateTime.now().millisecondsSinceEpoch ~/ 1000),
      );

      // The database is currently using unix timstamps. Let's add some rows in
      // that format:
      await db.users.insertOne(
          UsersCompanion.insert(name: 'name', createdAt: Value(time)));
      await db.users.insertOne(
          UsersCompanion.insert(name: 'name2', createdAt: Value(null)));

      // Run conversion from unix timestamps to text
      await db.migrateFromUnixTimestampsToText(db.createMigrator());

      // Check that the values are still there!
      final rows = await (db.select(db.users)
            ..orderBy([(row) => OrderingTerm.asc(row.rowId)]))
          .get();

      expect(rows, [
        User(id: 1, name: 'name', createdAt: time),
        const User(id: 2, name: 'name2', createdAt: null),
      ]);
    });

    test('text to unix timestamp', () async {
      // First, create all tables using text as datetime
      final db = Database.connect(DatabaseConnection(NativeDatabase.memory()));
      db.options = const DriftDatabaseOptions(storeDateTimeAsText: true);
      addTearDown(db.close);

      final time = DateTime.fromMillisecondsSinceEpoch(
          1000 * (DateTime.now().millisecondsSinceEpoch ~/ 1000));

      // Add rows, storing date time as text
      await db.users.insertOne(
          UsersCompanion.insert(name: 'name', createdAt: Value(time)));
      await db.users.insertOne(
          UsersCompanion.insert(name: 'name2', createdAt: Value(null)));

      // Next, migrate back to unix timestamps
      db.options = const DriftDatabaseOptions(storeDateTimeAsText: false);
      final migrator = db.createMigrator();
      await db.migrateFromTextDateTimesToUnixTimestamps(migrator);

      final rows = await (db.select(db.users)
            ..orderBy([(row) => OrderingTerm.asc(row.rowId)]))
          .get();

      expect(rows, [
        User(id: 1, name: 'name', createdAt: time),
        const User(id: 2, name: 'name2', createdAt: null),
      ]);
    });

    test('text to unix timestamp, support old sqlite', () async {
      // First, create all tables using text as datetime
      final db = Database.connect(DatabaseConnection(NativeDatabase.memory()));
      db.options = const DriftDatabaseOptions(storeDateTimeAsText: true);
      addTearDown(db.close);

      final time = DateTime.fromMillisecondsSinceEpoch(
          1000 * (DateTime.now().millisecondsSinceEpoch ~/ 1000));

      // Add rows, storing date time as text
      await db.users.insertOne(
          UsersCompanion.insert(name: 'name', createdAt: Value(time)));
      await db.users.insertOne(
          UsersCompanion.insert(name: 'name2', createdAt: Value(null)));

      // Next, migrate back to unix timestamps
      db.options = const DriftDatabaseOptions(storeDateTimeAsText: false);
      final migrator = db.createMigrator();
      await db.migrateFromTextDateTimesToUnixTimestampsPre338(migrator);

      final rows = await (db.select(db.users)
            ..orderBy([(row) => OrderingTerm.asc(row.rowId)]))
          .get();

      expect(rows, [
        User(id: 1, name: 'name', createdAt: time),
        const User(id: 2, name: 'name2', createdAt: null),
      ]);
    });
  });
}