♻️ Moved the chat page to use local db

lib/providers/message/helper.dart

@@ -20,28 +20,75 @@ extension MessageHistoryHelper on MessageHistoryDb {
     ));
   }
 
-  syncMessages(Channel channel, {String? scope}) async {
+  replaceMessage(Message remote) async {
+    await localMessages.update(LocalMessage(
+      remote.id,
+      remote,
+      remote.channelId,
+    ));
+  }
+
+  burnMessage(int id) async {
+    await localMessages.delete(id);
+  }
+
+  syncMessages(Channel channel, {String scope = 'global'}) async {
+    final lastOne = await localMessages.findLastByChannel(channel.id);
+
+    final data = await _getRemoteMessages(
+      channel,
+      scope,
+      remainBreath: 5,
+      onBrake: (items) {
+        return items.any((x) => x.id == lastOne?.id);
+      },
+    );
+    await localMessages.insertBulk(
+      data.map((x) => LocalMessage(x.id, x, x.channelId)).toList(),
+    );
+  }
+
+  Future<List<Message>> _getRemoteMessages(
+    Channel channel,
+    String scope, {
+    required int remainBreath,
+    bool Function(List<Message> items)? onBrake,
+    take = 10,
+    offset = 0,
+  }) async {
+    if (remainBreath <= 0) {
+      return List.empty();
+    }
+
     final AuthProvider auth = Get.find();
-    if (!await auth.isAuthorized) return;
+    if (!await auth.isAuthorized) return List.empty();
 
     final client = auth.configureClient('messaging');
 
-    final resp = await client
-        .get('/api/channels/$scope/${channel.alias}/messages?take=10&offset=0');
+    final resp = await client.get(
+        '/api/channels/$scope/${channel.alias}/messages?take=$take&offset=$offset');
 
     if (resp.statusCode != 200) {
       throw Exception(resp.bodyString);
     }
 
-    // TODO Continue sync until the last message / the message exists / sync limitation
+    final PaginationResult response = PaginationResult.fromJson(resp.body);
+    final result =
+        response.data?.map((e) => Message.fromJson(e)).toList() ?? List.empty();
 
-    final PaginationResult result = PaginationResult.fromJson(resp.body);
-    final parsed = result.data?.map((e) => Message.fromJson(e)).toList();
-    if (parsed != null) {
-      await localMessages.insertBulk(
-        parsed.map((x) => LocalMessage(x.id, x, x.channelId)).toList(),
-      );
+    if (onBrake != null && onBrake(result)) {
+      return result;
     }
+
+    final expandResult = await _getRemoteMessages(
+      channel,
+      scope,
+      remainBreath: remainBreath - 1,
+      take: take,
+      offset: offset + result.length,
+    );
+
+    return [...result, ...expandResult];
   }
 
   Future<List<LocalMessage>> listMessages(Channel channel) async {

lib/providers/message/history.dart

@@ -31,16 +31,31 @@ class RemoteMessageConverter extends TypeConverter<Message, String> {
 
 @dao
 abstract class LocalMessageDao {
-  @Query('SELECT * FROM LocalMessage WHERE channelId = :channelId')
+  @Query('SELECT COUNT(id) FROM LocalMessage WHERE channelId = :channelId')
+  Future<int?> countByChannel(int channelId);
+
+  @Query('SELECT * FROM LocalMessage WHERE channelId = :channelId ORDER BY id DESC')
   Future<List<LocalMessage>> findAllByChannel(int channelId);
 
+  @Query('SELECT * FROM LocalMessage WHERE channelId = :channelId ORDER BY id DESC LIMIT 1')
+  Future<LocalMessage?> findLastByChannel(int channelId);
+
   @Insert(onConflict: OnConflictStrategy.replace)
   Future<void> insert(LocalMessage m);
 
   @Insert(onConflict: OnConflictStrategy.replace)
   Future<void> insertBulk(List<LocalMessage> m);
 
-  @Query('DELETE * FROM LocalMessage')
+  @Update(onConflict: OnConflictStrategy.replace)
+  Future<void> update(LocalMessage person);
+
+  @Query('DELETE FROM LocalMessage WHERE id = :id')
+  Future<void> delete(int id);
+
+  @Query('DELETE FROM LocalMessage WHERE channelId = :channelId')
+  Future<List<LocalMessage>> deleteByChannel(int channelId);
+
+  @Query('DELETE FROM LocalMessage')
   Future<void> wipeLocalMessages();
 }
 

lib/providers/message/history.g.dart

@@ -119,6 +119,15 @@ class _$LocalMessageDao extends LocalMessageDao {
         _localMessageInsertionAdapter = InsertionAdapter(
             database,
             'LocalMessage',
+            (LocalMessage item) => <String, Object?>{
+                  'id': item.id,
+                  'data': _remoteMessageConverter.encode(item.data),
+                  'channelId': item.channelId
+                }),
+        _localMessageUpdateAdapter = UpdateAdapter(
+            database,
+            'LocalMessage',
+            ['id'],
             (LocalMessage item) => <String, Object?>{
                   'id': item.id,
                   'data': _remoteMessageConverter.encode(item.data),
@@ -133,10 +142,45 @@ class _$LocalMessageDao extends LocalMessageDao {
 
   final InsertionAdapter<LocalMessage> _localMessageInsertionAdapter;
 
+  final UpdateAdapter<LocalMessage> _localMessageUpdateAdapter;
+
+  @override
+  Future<int?> countByChannel(int channelId) async {
+    return _queryAdapter.query(
+        'SELECT COUNT(id) FROM LocalMessage WHERE channelId = ?1',
+        mapper: (Map<String, Object?> row) => row.values.first as int,
+        arguments: [channelId]);
+  }
+
   @override
   Future<List<LocalMessage>> findAllByChannel(int channelId) async {
     return _queryAdapter.queryList(
-        'SELECT * FROM LocalMessage WHERE channelId = ?1',
+        'SELECT * FROM LocalMessage WHERE channelId = ?1 ORDER BY id DESC',
+        mapper: (Map<String, Object?> row) => LocalMessage(
+            row['id'] as int,
+            _remoteMessageConverter.decode(row['data'] as String),
+            row['channelId'] as int),
+        arguments: [channelId]);
+  }
+
+  @override
+  Future<LocalMessage?> findLastByChannel(int channelId) async {
+    return _queryAdapter.query(
+        'SELECT * FROM LocalMessage WHERE channelId = ?1 ORDER BY id DESC LIMIT 1',
+        mapper: (Map<String, Object?> row) => LocalMessage(row['id'] as int, _remoteMessageConverter.decode(row['data'] as String), row['channelId'] as int),
+        arguments: [channelId]);
+  }
+
+  @override
+  Future<void> delete(int id) async {
+    await _queryAdapter.queryNoReturn('DELETE FROM LocalMessage WHERE id = ?1',
+        arguments: [id]);
+  }
+
+  @override
+  Future<List<LocalMessage>> deleteByChannel(int channelId) async {
+    return _queryAdapter.queryList(
+        'DELETE FROM LocalMessage WHERE channelId = ?1',
         mapper: (Map<String, Object?> row) => LocalMessage(
             row['id'] as int,
             _remoteMessageConverter.decode(row['data'] as String),
@@ -146,7 +190,7 @@ class _$LocalMessageDao extends LocalMessageDao {
 
   @override
   Future<void> wipeLocalMessages() async {
-    await _queryAdapter.queryNoReturn('DELETE * FROM LocalMessage');
+    await _queryAdapter.queryNoReturn('DELETE FROM LocalMessage');
   }
 
   @override
@@ -159,6 +203,11 @@ class _$LocalMessageDao extends LocalMessageDao {
     await _localMessageInsertionAdapter.insertList(
         m, OnConflictStrategy.replace);
   }
+
+  @override
+  Future<void> update(LocalMessage person) async {
+    await _localMessageUpdateAdapter.update(person, OnConflictStrategy.replace);
+  }
 }
 
 // ignore_for_file: unused_element