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Import backups without overwrite #445

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Import backups without overwrite #445

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39 changes: 37 additions & 2 deletions lib/utils/backup_restore_utils.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,17 @@ import 'dart:io';

import 'package:daily_you/database/app_database.dart';
import 'package:daily_you/database/image_storage.dart';
import 'package:daily_you/models/entry.dart';
import 'package:daily_you/models/image.dart';
import 'package:daily_you/providers/entries_provider.dart';
import 'package:daily_you/providers/entry_images_provider.dart';
import 'package:daily_you/utils/file_layer.dart';
import 'package:daily_you/utils/zip_utils.dart';
import 'package:flutter/material.dart';
import 'package:daily_you/l10n/generated/app_localizations.dart';
import 'package:path/path.dart';
import 'package:path_provider/path_provider.dart';
import 'package:sqflite_common_ffi/sqflite_ffi.dart';

class BackupRestoreUtils {
static Future<bool> backupToZip(
Expand Down Expand Up @@ -92,8 +97,7 @@ class BackupRestoreUtils {
if (await tempDb.exists()) {
// Import database
await AppDatabase.instance.close();
await File(await AppDatabase.instance.getInternalPath())
.writeAsBytes(await tempDb.readAsBytes());
await mergeDatabases(tempDb);
await AppDatabase.instance.open();
await AppDatabase.instance.updateExternalDatabase();

Expand Down Expand Up @@ -165,4 +169,35 @@ class BackupRestoreUtils {
},
);
}

static Future<void> mergeDatabases(File newEntriesFile) async {
final newDb = await openDatabase(newEntriesFile.path, readOnly: true);

final List<Map<String, Object?>> newEntries = await newDb.query("entries");
final List<Map<String, Object?>> newImages = await newDb.query("entry_images");

// Entry workingEntry = Entry(text: "", timeCreate: DateTime.now(), timeModified: DateTime.now());
for (var entryMap in newEntries) {
final newEntry = Entry(
text: entryMap[EntryFields.text].toString(),
timeCreate: DateTime.parse(entryMap[EntryFields.timeCreate].toString()),
timeModified: DateTime.parse(entryMap[EntryFields.timeModified].toString()),
mood: entryMap[EntryFields.mood] != null ? int.parse(entryMap[EntryFields.mood].toString()) : null
);

final createdEntry = await EntriesProvider.instance.add(newEntry);

final relevantImages = newImages.where((image) => image[EntryImageFields.entryId] == createdEntry.id);

for (var img in relevantImages) {
final newImage = EntryImage(
entryId: int.parse(img[EntryImageFields.entryId].toString()),
imgPath: img[EntryImageFields.imgPath].toString(),
imgRank: int.parse(img[EntryImageFields.imgRank].toString()),
timeCreate: DateTime.parse(img[EntryImageFields.timeCreate].toString())
);
await EntryImagesProvider.instance.add(newImage);
}
}
}
}