🗃️ Local keypair db

lib/database/database.dart

@@ -2,16 +2,18 @@ import 'package:drift/drift.dart';
 import 'package:drift_flutter/drift_flutter.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:surface/database/chat.dart';
+import 'package:surface/database/database.steps.dart';
+import 'package:surface/database/keypair.dart';
 import 'package:surface/types/chat.dart';
 
 part 'database.g.dart';
 
-@DriftDatabase(tables: [SnLocalChatChannel, SnLocalChatMessage])
+@DriftDatabase(tables: [SnLocalChatChannel, SnLocalChatMessage, SnLocalKeyPair])
 class AppDatabase extends _$AppDatabase {
-  AppDatabase() : super(_openConnection());
+  AppDatabase([QueryExecutor? e]) : super(e ?? _openConnection());
 
   @override
-  int get schemaVersion => 1;
+  int get schemaVersion => 2;
 
   static QueryExecutor _openConnection() {
     return driftDatabase(
@@ -25,4 +27,13 @@ class AppDatabase extends _$AppDatabase {
       ),
     );
   }
+
+  @override
+  MigrationStrategy get migration {
+    return MigrationStrategy(
+      onUpgrade: stepByStep(from1To2: (m, schema) async {
+        // Nothing else to do here
+      }),
+    );
+  }
 }

lib/database/database.steps.dart

@@ -0,0 +1,154 @@
+// dart format width=80
+import 'package:drift/internal/versioned_schema.dart' as i0;
+import 'package:drift/drift.dart' as i1;
+import 'package:drift/drift.dart'; // ignore_for_file: type=lint,unused_import
+
+// GENERATED BY drift_dev, DO NOT MODIFY.
+final class Schema2 extends i0.VersionedSchema {
+  Schema2({required super.database}) : super(version: 2);
+  @override
+  late final List<i1.DatabaseSchemaEntity> entities = [
+    snLocalChatChannel,
+    snLocalChatMessage,
+    snLocalKeyPair,
+  ];
+  late final Shape0 snLocalChatChannel = Shape0(
+      source: i0.VersionedTable(
+        entityName: 'sn_local_chat_channel',
+        withoutRowId: false,
+        isStrict: false,
+        tableConstraints: [],
+        columns: [
+          _column_0,
+          _column_1,
+          _column_2,
+          _column_3,
+        ],
+        attachedDatabase: database,
+      ),
+      alias: null);
+  late final Shape1 snLocalChatMessage = Shape1(
+      source: i0.VersionedTable(
+        entityName: 'sn_local_chat_message',
+        withoutRowId: false,
+        isStrict: false,
+        tableConstraints: [],
+        columns: [
+          _column_0,
+          _column_4,
+          _column_2,
+          _column_3,
+        ],
+        attachedDatabase: database,
+      ),
+      alias: null);
+  late final Shape2 snLocalKeyPair = Shape2(
+      source: i0.VersionedTable(
+        entityName: 'sn_local_key_pair',
+        withoutRowId: false,
+        isStrict: false,
+        tableConstraints: [],
+        columns: [
+          _column_5,
+          _column_6,
+          _column_7,
+          _column_8,
+        ],
+        attachedDatabase: database,
+      ),
+      alias: null);
+}
+
+class Shape0 extends i0.VersionedTable {
+  Shape0({required super.source, required super.alias}) : super.aliased();
+  i1.GeneratedColumn<int> get id =>
+      columnsByName['id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<String> get alias =>
+      columnsByName['alias']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<String> get content =>
+      columnsByName['content']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<DateTime> get createdAt =>
+      columnsByName['created_at']! as i1.GeneratedColumn<DateTime>;
+}
+
+i1.GeneratedColumn<int> _column_0(String aliasedName) =>
+    i1.GeneratedColumn<int>('id', aliasedName, false,
+        hasAutoIncrement: true,
+        type: i1.DriftSqlType.int,
+        defaultConstraints:
+            i1.GeneratedColumn.constraintIsAlways('PRIMARY KEY AUTOINCREMENT'));
+i1.GeneratedColumn<String> _column_1(String aliasedName) =>
+    i1.GeneratedColumn<String>('alias', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<String> _column_2(String aliasedName) =>
+    i1.GeneratedColumn<String>('content', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<DateTime> _column_3(String aliasedName) =>
+    i1.GeneratedColumn<DateTime>('created_at', aliasedName, false,
+        type: i1.DriftSqlType.dateTime,
+        defaultValue: const CustomExpression(
+            'CAST(strftime(\'%s\', CURRENT_TIMESTAMP) AS INTEGER)'));
+
+class Shape1 extends i0.VersionedTable {
+  Shape1({required super.source, required super.alias}) : super.aliased();
+  i1.GeneratedColumn<int> get id =>
+      columnsByName['id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<int> get channelId =>
+      columnsByName['channel_id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<String> get content =>
+      columnsByName['content']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<DateTime> get createdAt =>
+      columnsByName['created_at']! as i1.GeneratedColumn<DateTime>;
+}
+
+i1.GeneratedColumn<int> _column_4(String aliasedName) =>
+    i1.GeneratedColumn<int>('channel_id', aliasedName, false,
+        type: i1.DriftSqlType.int);
+
+class Shape2 extends i0.VersionedTable {
+  Shape2({required super.source, required super.alias}) : super.aliased();
+  i1.GeneratedColumn<String> get id =>
+      columnsByName['id']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<int> get accountId =>
+      columnsByName['account_id']! as i1.GeneratedColumn<int>;
+  i1.GeneratedColumn<String> get publicKey =>
+      columnsByName['public_key']! as i1.GeneratedColumn<String>;
+  i1.GeneratedColumn<String> get privateKey =>
+      columnsByName['private_key']! as i1.GeneratedColumn<String>;
+}
+
+i1.GeneratedColumn<String> _column_5(String aliasedName) =>
+    i1.GeneratedColumn<String>('id', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<int> _column_6(String aliasedName) =>
+    i1.GeneratedColumn<int>('account_id', aliasedName, false,
+        type: i1.DriftSqlType.int);
+i1.GeneratedColumn<String> _column_7(String aliasedName) =>
+    i1.GeneratedColumn<String>('public_key', aliasedName, false,
+        type: i1.DriftSqlType.string);
+i1.GeneratedColumn<String> _column_8(String aliasedName) =>
+    i1.GeneratedColumn<String>('private_key', aliasedName, true,
+        type: i1.DriftSqlType.string);
+i0.MigrationStepWithVersion migrationSteps({
+  required Future<void> Function(i1.Migrator m, Schema2 schema) from1To2,
+}) {
+  return (currentVersion, database) async {
+    switch (currentVersion) {
+      case 1:
+        final schema = Schema2(database: database);
+        final migrator = i1.Migrator(database, schema);
+        await from1To2(migrator, schema);
+        return 2;
+      default:
+        throw ArgumentError.value('Unknown migration from $currentVersion');
+    }
+  };
+}
+
+i1.OnUpgrade stepByStep({
+  required Future<void> Function(i1.Migrator m, Schema2 schema) from1To2,
+}) =>
+    i0.VersionedSchema.stepByStepHelper(
+        step: migrationSteps(
+      from1To2: from1To2,
+    ));

lib/database/keypair.dart

@@ -0,0 +1,39 @@
+import 'dart:convert';
+
+import 'package:drift/drift.dart';
+import 'package:surface/types/keypair.dart';
+
+class SnKeyPairConverter extends TypeConverter<SnKeyPair, String>
+    with JsonTypeConverter2<SnKeyPair, String, Map<String, Object?>> {
+  const SnKeyPairConverter();
+
+  @override
+  SnKeyPair fromSql(String fromDb) {
+    return fromJson(jsonDecode(fromDb) as Map<String, dynamic>);
+  }
+
+  @override
+  String toSql(SnKeyPair value) {
+    return jsonEncode(toJson(value));
+  }
+
+  @override
+  SnKeyPair fromJson(Map<String, Object?> json) {
+    return SnKeyPair.fromJson(json);
+  }
+
+  @override
+  Map<String, Object?> toJson(SnKeyPair value) {
+    return value.toJson();
+  }
+}
+
+class SnLocalKeyPair extends Table {
+  TextColumn get id => text()();
+
+  IntColumn get accountId => integer()();
+
+  TextColumn get publicKey => text()();
+
+  TextColumn get privateKey => text().nullable()();
+}