File update system

lib/ui/screens/conversation_screen.dart

@@ -6,6 +6,7 @@ import 'package:comunic/helpers/server_config_helper.dart';
 import 'package:comunic/helpers/users_helper.dart';
 import 'package:comunic/lists/conversation_messages_list.dart';
 import 'package:comunic/lists/users_list.dart';
+import 'package:comunic/models/api_request.dart';
 import 'package:comunic/models/conversation.dart';
 import 'package:comunic/models/conversation_message.dart';
 import 'package:comunic/models/new_conversation_message.dart';
@@ -17,6 +18,7 @@ import 'package:comunic/ui/widgets/scroll_watcher.dart';
 import 'package:comunic/utils/files_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/list_utils.dart';
+import 'package:comunic/utils/log_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
 import 'package:flutter/material.dart';
 
@@ -48,12 +50,20 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
   ConversationMessagesList _messages;
   UsersList _usersInfo = UsersList();
   ErrorLevel _error = ErrorLevel.NONE;
-  bool _isMessageValid = false;
+
   bool _isSendingMessage = false;
   TextEditingController _textEditingController = TextEditingController();
   ScrollWatcher _scrollController;
   _OlderMessagesLevel _loadingOlderMessages = _OlderMessagesLevel.NONE;
 
+  String get textMessage => _textEditingController.text;
+
+  bool get _isMessageValid =>
+      textMessage.length >=
+          ServerConfigurationHelper.config.conversationsPolicy.minMessageLen &&
+      textMessage.length <
+          ServerConfigurationHelper.config.conversationsPolicy.maxMessageLen;
+
   @override
   void initState() {
     super.initState();
@@ -213,21 +223,31 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
 
   /// Pick and send an image
   Future<void> _sendImage(BuildContext context) async {
-    final image = await pickImage(context);
+    try {
+      final image = await pickImage(context);
 
-    if (image == null) return null;
+      if (image == null) return;
 
-    _submitMessage(
+      await _sendFileMessage(BytesFile(
+        image.path.split("/").last,
+        await image.readAsBytes(),
+      ));
+    } catch (e, s) {
+      logError(e, s);
+      showSimpleSnack(context, tr("Failed to send image!"));
+    }
+  }
+
+  /// Send a file message
+  Future<void> _sendFileMessage(BytesFile file) async {
+    await _submitMessage(
       context,
       NewConversationMessage(
         conversationID: widget.conversationID,
         message: null,
-        image: image,
+        file: file,
       ),
     );
-
-    // In case a message was already written in the input
-    _updatedText(_textEditingController.text);
   }
 
   /// Send a new text message
@@ -265,18 +285,9 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
     return result;
   }
 
-  void _updatedText(String text) {
-    setState(() {
-      _isMessageValid = text.length > 2;
-    });
-  }
-
   /// Clear send message form
   void _clearSendMessageForm() {
-    setState(() {
-      _textEditingController = TextEditingController();
-      _isMessageValid = false;
-    });
+    setState(() => _textEditingController = TextEditingController());
   }
 
   /// Check if a message is the last message of a user or not
@@ -352,7 +363,7 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
             margin: new EdgeInsets.symmetric(horizontal: 4.0),
             child: new IconButton(
               icon: new Icon(
-                Icons.photo_camera,
+                Icons.add,
                 color: _isSendingMessage
                     ? Theme.of(context).disabledColor
                     : Theme.of(context).accentColor,
@@ -366,7 +377,8 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
             child: new TextField(
               keyboardType: TextInputType.text,
               maxLines: null,
-              maxLength: 200,
+              maxLength: ServerConfigurationHelper
+                  .config.conversationsPolicy.maxMessageLen,
               maxLengthEnforced: true,
 
               // Show max length only when there is some text already typed
@@ -374,7 +386,7 @@ class _ConversationScreenState extends SafeState<ConversationScreen> {
 
               enabled: !_isSendingMessage,
               controller: _textEditingController,
-              onChanged: _updatedText,
+              onChanged: (s) => setState(() {}),
               onSubmitted: _isMessageValid
                   ? (s) => _submitTextMessage(context, s)
                   : null,