UI fixes for new groups, form validation for discussion topic

assets/l10n/intl_en.arb

@@ -4359,5 +4359,6 @@
   "enterPrompt": "Please enter a system prompt",
   "selectBotLanguage": "Select bot language",
   "chooseVoice": "Choose a voice",
-  "enterLanguageLevel": "Please enter a language level"
+  "enterLanguageLevel": "Please enter a language level",
+  "enterDiscussionTopic": "Please enter a discussion topic"
 }

lib/pages/new_group/new_group.dart

@@ -106,6 +106,20 @@ class NewGroupController extends State<NewGroup> {
 
       // #Pangea
       // validate init bot options
+      if (addConversationBotKey.currentState?.formKey.currentState != null) {
+        final isValid = addConversationBotKey
+            .currentState!.formKey.currentState!
+            .validate();
+        if (isValid == false) {
+          setState(() {
+            error = L10n.of(context)!
+                .conversationBotCustomZone_customSystemPromptEmptyError;
+            loading = false;
+          });
+          return;
+        }
+      }
+      addConversationBotKey.currentState?.updateAllBotOptions();
       final addBot = addConversationBotKey.currentState?.addBot ?? false;
       if (addBot) {
         final botOptions = addConversationBotKey.currentState!.botOptions;

lib/pangea/widgets/conversation_bot/conversation_bot_mode_dynamic_zone.dart

@@ -29,6 +29,9 @@ class ConversationBotModeDynamicZone extends StatelessWidget {
               .conversationBotDiscussionZone_discussionTopicPlaceholder,
         ),
         controller: discussionTopicController,
+        validator: (value) => value == null || value.isEmpty
+            ? L10n.of(context)!.enterDiscussionTopic
+            : null,
       ),
       const SizedBox(height: 12),
       TextFormField(

lib/pangea/widgets/conversation_bot/conversation_bot_settings.dart

@@ -99,6 +99,12 @@ class ConversationBotSettingsState extends State<ConversationBotSettings> {
     );
   }
 
+  void updateAllBotOptions() {
+    botOptions.discussionTopic = discussionTopicController.text;
+    botOptions.discussionKeywords = discussionKeywordsController.text;
+    botOptions.customSystemPrompt = customSystemPromptController.text;
+  }
+
   Future<void> showBotOptionsDialog() async {
     if (isCreating) return;
     final bool? confirm = await showDialog<bool>(
@@ -135,10 +141,7 @@ class ConversationBotSettingsState extends State<ConversationBotSettings> {
     );
 
     if (confirm == true) {
-      botOptions.discussionTopic = discussionTopicController.text;
-      botOptions.discussionKeywords = discussionKeywordsController.text;
-      botOptions.customSystemPrompt = customSystemPromptController.text;
-
+      updateAllBotOptions();
       updateBotOption(() => botOptions = botOptions);
 
       final bool isBotRoomMember = await widget.room?.botIsInRoom ?? false;
@@ -241,12 +244,34 @@ class ConversationBotSettingsState extends State<ConversationBotSettings> {
             onTap: showBotOptionsDialog,
           ),
           if (isCreating && addBot)
-            ConversationBotSettingsForm(
-              botOptions: botOptions,
-              formKey: formKey,
-              discussionKeywordsController: discussionKeywordsController,
-              discussionTopicController: discussionTopicController,
-              customSystemPromptController: customSystemPromptController,
+            Padding(
+              padding: const EdgeInsets.all(16),
+              child: Column(
+                children: [
+                  Align(
+                    alignment: Alignment.centerLeft,
+                    child: Padding(
+                      padding: const EdgeInsets.symmetric(vertical: 12),
+                      child: Text(
+                        L10n.of(context)!.botConfig,
+                        style: Theme.of(context).textTheme.titleLarge,
+                      ),
+                    ),
+                  ),
+                  Form(
+                    key: formKey,
+                    child: ConversationBotSettingsForm(
+                      botOptions: botOptions,
+                      formKey: formKey,
+                      discussionKeywordsController:
+                          discussionKeywordsController,
+                      discussionTopicController: discussionTopicController,
+                      customSystemPromptController:
+                          customSystemPromptController,
+                    ),
+                  ),
+                ],
+              ),
             ),
         ],
       ),

lib/pangea/widgets/conversation_bot/conversation_bot_settings_form.dart

@@ -95,7 +95,7 @@ class ConversationBotSettingsFormState
           validator: (value) =>
               value == null ? L10n.of(context)!.enterLanguageLevel : null,
         ),
-        const SizedBox(height: 20),
+        const SizedBox(height: 12),
         Align(
           alignment: Alignment.centerLeft,
           child: Padding(
@@ -106,7 +106,6 @@ class ConversationBotSettingsFormState
             ),
           ),
         ),
-        const SizedBox(height: 12),
         ConversationBotModeSelect(
           initialMode: botOptions.mode,
           onChanged: (String? mode) => {