add thread support

Fixes #129

lib/widgets/composer/bot_command_form.dart

@@ -33,12 +33,12 @@ class const BotCommandForm(
           (index, parameter) => BotOptionPill(
             parameter,
             key: ValueKey(parameter.key),
-            roomId: draft.roomId,
+            composer: draft.composer,
             onSubmit: onSubmit,
             onRemove: parameter.optional
                 ? () => ref
                       .read(
-                        BotCommandDraftController.provider(draft.roomId)
+                        BotCommandDraftController.provider(draft.composer)
                             .notifier,
                       )
                       .removeOption(parameter.key)

lib/widgets/composer/bot_command_panel.dart

@@ -3,6 +3,7 @@ import "package:flutter/scheduler.dart";
 import "package:flutter_hooks/flutter_hooks.dart";
 import "package:hooks_riverpod/hooks_riverpod.dart";
 import "package:material_ui/material_ui.dart";
+import "package:nexus/models/composer_params.dart";
 import "package:nexus/controllers/bot_argument_suggestions.dart";
 import "package:nexus/controllers/bot_command_draft.dart";
 import "package:nexus/models/bot_argument_suggestion.dart";
@@ -10,7 +11,7 @@ import "package:nexus/models/bot_command.dart";
 import "package:nexus/widgets/avatar_or_hash.dart";
 
 class const BotCommandPanel(
-  final String roomId, {
+  final ComposerParams composer, {
   required final IList<BotCommand> commands,
   required final TextEditingController controller,
   required final void Function(BotCommand command) onPick,
@@ -19,9 +20,9 @@ class const BotCommandPanel(
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final theme = Theme.of(context);
-    final draftProvider = BotCommandDraftController.provider(roomId);
+    final draftProvider = BotCommandDraftController.provider(composer);
     final suggestionsProvider = BotArgumentSuggestionsController.provider(
-      roomId,
+      composer,
     );
 
     final text = useState(controller.text);

lib/widgets/composer/bot_option_pill.dart

@@ -2,12 +2,13 @@ import "package:flutter/services.dart";
 import "package:flutter_hooks/flutter_hooks.dart";
 import "package:hooks_riverpod/hooks_riverpod.dart";
 import "package:material_ui/material_ui.dart";
+import "package:nexus/models/composer_params.dart";
 import "package:nexus/controllers/bot_command_draft.dart";
 import "package:nexus/models/content/bot_command_description.dart";
 
 class const BotOptionPill(
   final BotParameter parameter, {
-  required final String roomId,
+  required final ComposerParams composer,
 
   /// Called on backspace while empty, to remove the parameter or command.
   final VoidCallback? onRemove,
@@ -17,7 +18,7 @@ class const BotOptionPill(
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final colorScheme = Theme.of(context).colorScheme;
-    final provider = BotCommandDraftController.provider(roomId);
+    final provider = BotCommandDraftController.provider(composer);
     final (:text, :isFocused, :error, :isLast) = ref.watch(
       provider.select(
         (draft) => (

lib/widgets/composer/composer.dart

@@ -10,6 +10,7 @@ import "package:nexus/controllers/rooms.dart";
 import "package:nexus/helpers/extensions/show_error_snack_bar.dart";
 import "package:nexus/models/bot_command.dart";
 import "package:nexus/models/bot_command_draft.dart";
+import "package:nexus/models/composer_params.dart";
 import "package:nexus/widgets/composer/bot_command_form.dart";
 import "package:nexus/widgets/composer/bot_command_panel.dart";
 import "package:nexus/widgets/emoji_picker.dart";
@@ -75,6 +76,7 @@ class const Composer(
   })
   onSendLocation,
   required final Future<void> Function(BotCommandDraft draft) onSendBotCommand,
+  final String? threadRoot,
   final FocusNode? node,
   super.key,
 }) extends HookConsumerWidget {
@@ -131,7 +133,9 @@ class const Composer(
 
     final poll = useState<PollStart?>(null);
     final location = useState<LocationMessageContent?>(null);
-    final botCommandProvider = BotCommandDraftController.provider(roomId);
+    final ComposerParams composer = (roomId: roomId, threadRoot: threadRoot);
+    final botCommandProvider = BotCommandDraftController.provider(composer);
+    final attachmentProvider = AttachmentController.provider(composer);
     final botCommand = ref.watch(botCommandProvider);
     useEffect(() {
       sticker.value = null;
@@ -150,8 +154,6 @@ class const Composer(
     final isEditing = relationType == .edit && relatedEvent != null;
 
     useEffect(() {
-      final attachmentProvider = AttachmentController.provider(roomId);
-
       if (relationType == .edit && relatedEvent != null) {
         textBefore.value ??= controller.text;
         attachmentBefore.value ??= (ref.read(attachmentProvider),);
@@ -247,13 +249,11 @@ class const Composer(
       };
     }, [roomId]);
 
-    final attachment = ref.watch(AttachmentController.provider(roomId));
+    final attachment = ref.watch(attachmentProvider);
 
     Future<void> attach(Future<XFile?> pick) async {
       if (await pick case final file?) {
-        await ref
-            .read(AttachmentController.provider(roomId).notifier)
-            .add(file);
+        await ref.read(attachmentProvider.notifier).add(file);
       }
     }
 
@@ -266,9 +266,7 @@ class const Composer(
       final file = await File(join(directory.path, filename))
           .writeAsBytes(bytes);
 
-      await ref
-          .read(AttachmentController.provider(roomId).notifier)
-          .add(.new(file.path));
+      await ref.read(attachmentProvider.notifier).add(.new(file.path));
     }
 
     /// Attaches the first file on the clipboard, or the image on it if there
@@ -283,7 +281,7 @@ class const Composer(
       final files = await Pasteboard.files().onError((_, _) => const []);
       if (files.firstOrNull case final path?) {
         ref
-            .read(AttachmentController.provider(roomId).notifier)
+            .read(attachmentProvider.notifier)
             .add(XFile(path))
             .onError(showError);
         return true;
@@ -338,7 +336,9 @@ class const Composer(
       if (hasReplacement) {
         if (botCommand != null) {
           if (ref
-              .read(BotArgumentSuggestionsController.provider(roomId).notifier)
+              .read(
+                BotArgumentSuggestionsController.provider(composer).notifier,
+              )
               .pickTop()) {
             return;
           }
@@ -432,8 +432,7 @@ class const Composer(
                     : Icon(Icons.file_copy),
                 title: Text(attachment.$1),
                 trailing: IconButton(
-                  onPressed: () =>
-                      ref.invalidate(AttachmentController.provider(roomId)),
+                  onPressed: () => ref.invalidate(attachmentProvider),
                   icon: Icon(Icons.close),
                 ),
               ),
@@ -442,7 +441,7 @@ class const Composer(
             duration: Durations.short4,
             alignment: .bottomCenter,
             child: BotCommandPanel(
-              roomId,
+              composer,
               commands: botCommands,
               controller: controller,
               onPick: pickBotCommand,

lib/widgets/composer/relation_preview.dart

@@ -29,7 +29,10 @@ class const RelationPreview(
           Expanded(
             child: Padding(
               padding: .symmetric(vertical: 8),
-              child: EventPreview(relatedEvent!),
+              child: EventPreview(
+                relatedEvent!.rowId,
+                roomId: relatedEvent!.roomId,
+              ),
             ),
           ),