Changeset 0.28.5 (#191)

src/js/chat.js

@@ -656,6 +656,21 @@ function startRenameChat(chatId) {
 
 // ── Send Message ─────────────────────────────
 
+// v0.28.5: Build context object for pre-send pipe filters.
+function _buildPreSendContext(opts) {
+    const chat = opts.channel || {};
+    return {
+        message:             opts.message || '',
+        channel:             { id: chat.id || null, type: chat.type || 'direct', title: chat.title || '' },
+        attachments:         opts.attachments || [],
+        model:               opts.model || null,
+        persona:             opts.personaId || null,
+        metadata:            {},
+        regenerate:          opts.regenerate || false,
+        regenerateMessageId: opts.regenerateMessageId || null,
+    };
+}
+
 async function sendMessage() {
     const text = ChatInput.getValue().trim();
     const hasFiles = hasStagedFiles();
@@ -698,6 +713,33 @@ async function sendMessage() {
     const chat = App.getActiveChat();
     if (!chat) return;
 
+    // ── v0.28.5: Pre-send pipe ──────────────────────────────
+    // Filters can transform message, inject metadata, or halt (return null).
+    if (typeof sw !== 'undefined' && sw.pipe) {
+        const preSendCtx = _buildPreSendContext({
+            message: text, channel: chat, model, personaId,
+            attachments: fileIds, regenerate: false,
+        });
+        const result = sw.pipe._runPre(preSendCtx);
+        if (result === null) {
+            // Filter halted — suppress message
+            UI.toast('Message blocked by extension', 'warning');
+            return;
+        }
+        // Apply any mutations from filters — model/persona may have changed
+        // but message text is the most common mutation (KB inject, rewrite).
+        // Note: we don't overwrite `text` (const) — the API call reads from ctx.
+        var _preSendText = result.message;
+        var _preSendModel = result.model || model;
+        var _preSendPersonaId = result.persona || personaId;
+        var _preSendMeta = result.metadata || {};
+    } else {
+        var _preSendText = text;
+        var _preSendModel = model;
+        var _preSendPersonaId = personaId;
+        var _preSendMeta = {};
+    }
+
     // Optimistic: show user message immediately
     const userContent = text || (hasFiles ? `[${fileIds.length} file${fileIds.length > 1 ? 's' : ''} attached]` : '');
     chat.messages.push({ role: 'user', content: userContent, timestamp: new Date().toISOString(), siblingCount: 1, siblingIndex: 0 });
@@ -711,7 +753,7 @@ async function sendMessage() {
     UI.setGenerating(true);
 
     try {
-        const resp = await API.streamCompletion(App.activeId, text, model, App.abortController.signal, modelInfo?.configId, personaId, fileIds,
+        const resp = await API.streamCompletion(App.activeId, _preSendText, _preSendModel, App.abortController.signal, modelInfo?.configId, _preSendPersonaId, fileIds,
             typeof ToolsToggle !== 'undefined' ? ToolsToggle.getDisabledTools() : []);
 
         // v0.23.2: Non-streaming response (DM with mention_only, no @mention)
@@ -823,6 +865,26 @@ async function regenerateMessage(messageId) {
         }
     }
 
+    // ── v0.28.5: Pre-send pipe (regeneration path) ──────────
+    if (typeof sw !== 'undefined' && sw.pipe) {
+        const preSendCtx = _buildPreSendContext({
+            message: '', channel: chat, model, personaId,
+            regenerate: true, regenerateMessageId: messageId,
+        });
+        const result = sw.pipe._runPre(preSendCtx);
+        if (result === null) {
+            UI.toast('Regeneration blocked by extension', 'warning');
+            // Restore display since we truncated above
+            if (chat) UI.renderMessages(chat.messages);
+            return;
+        }
+        var _regenModel = result.model || model;
+        var _regenPersonaId = result.persona || personaId;
+    } else {
+        var _regenModel = model;
+        var _regenPersonaId = personaId;
+    }
+
     App.isGenerating = true;
     App.abortController = new AbortController();
     UI.setGenerating(true);
@@ -830,7 +892,7 @@ async function regenerateMessage(messageId) {
     try {
         const resp = await API.streamRegenerate(
             App.activeId, messageId, App.abortController.signal,
-            model, personaId, modelInfo?.configId,
+            _regenModel, _regenPersonaId, modelInfo?.configId,
             typeof ToolsToggle !== 'undefined' ? ToolsToggle.getDisabledTools() : []
         );
         await UI.streamResponse(resp, chat?.messages || [], modelInfo?.name);