From ac8ef73bee377f2fc354abebffb1736767ca5d89 Mon Sep 17 00:00:00 2001
From: Will Chen <willchen90@gmail.com>
Date: Mon, 5 May 2025 12:38:09 -0700
Subject: [PATCH] Support image/file attachments (#80)

---
 src/components/chat/AttachmentsList.tsx  |  62 ++++++
 src/components/chat/ChatInput.tsx        |  77 ++++++-
 src/components/chat/DragDropOverlay.tsx  |  18 ++
 src/components/chat/HomeChatInput.tsx    |  89 +++++++-
 src/hooks/useAttachments.ts              |  58 ++++++
 src/hooks/useStreamChat.ts               |   8 +-
 src/ipc/handlers/chat_stream_handlers.ts | 247 ++++++++++++++++++++++-
 src/ipc/ipc_client.ts                    |  71 +++++--
 src/ipc/ipc_types.ts                     |   5 +
 src/pages/home.tsx                       |  19 +-
 10 files changed, 620 insertions(+), 34 deletions(-)
 create mode 100644 src/components/chat/AttachmentsList.tsx
 create mode 100644 src/components/chat/DragDropOverlay.tsx
 create mode 100644 src/hooks/useAttachments.ts

diff --git a/src/components/chat/AttachmentsList.tsx b/src/components/chat/AttachmentsList.tsx
new file mode 100644
index 0000000..2cb269b
--- /dev/null
+++ b/src/components/chat/AttachmentsList.tsx
@@ -0,0 +1,62 @@
+import { FileText, X } from "lucide-react";
+import { useEffect } from "react";
+
+interface AttachmentsListProps {
+  attachments: File[];
+  onRemove: (index: number) => void;
+}
+
+export function AttachmentsList({
+  attachments,
+  onRemove,
+}: AttachmentsListProps) {
+  if (attachments.length === 0) return null;
+
+  return (
+    <div className="px-2 pt-2 flex flex-wrap gap-1">
+      {attachments.map((file, index) => (
+        <div
+          key={index}
+          className="flex items-center bg-muted rounded-md px-2 py-1 text-xs gap-1"
+          title={`${file.name} (${(file.size / 1024).toFixed(1)}KB)`}
+        >
+          {file.type.startsWith("image/") ? (
+            <div className="relative group">
+              <img
+                src={URL.createObjectURL(file)}
+                alt={file.name}
+                className="w-5 h-5 object-cover rounded"
+                onLoad={(e) =>
+                  URL.revokeObjectURL((e.target as HTMLImageElement).src)
+                }
+                onError={(e) =>
+                  URL.revokeObjectURL((e.target as HTMLImageElement).src)
+                }
+              />
+              <div className="absolute hidden group-hover:block top-6 left-0 z-10">
+                <img
+                  src={URL.createObjectURL(file)}
+                  alt={file.name}
+                  className="max-w-[200px] max-h-[200px] object-contain bg-white p-1 rounded shadow-lg"
+                  onLoad={(e) =>
+                    URL.revokeObjectURL((e.target as HTMLImageElement).src)
+                  }
+                />
+              </div>
+            </div>
+          ) : (
+            <FileText size={12} />
+          )}
+          <span className="truncate max-w-[120px]">{file.name}</span>
+          <button
+            onClick={() => onRemove(index)}
+            className="hover:bg-muted-foreground/20 rounded-full p-0.5"
+            aria-label="Remove attachment"
+          >
+            <X size={12} />
+          </button>
+        </div>
+      ))}
+    </div>
+  );
+}
diff --git a/src/components/chat/ChatInput.tsx b/src/components/chat/ChatInput.tsx
index 8b349d4..a45b83c 100644
--- a/src/components/chat/ChatInput.tsx
+++ b/src/components/chat/ChatInput.tsx
@@ -16,6 +16,7 @@ import {
   ChevronsUpDown,
   ChevronsDownUp,
   BarChart2,
+  Paperclip,
 } from "lucide-react";
 import type React from "react";
 import { useCallback, useEffect, useRef, useState } from "react";
@@ -54,6 +55,9 @@ import {
 } from "../ui/tooltip";
 import { useNavigate } from "@tanstack/react-router";
 import { useVersions } from "@/hooks/useVersions";
+import { useAttachments } from "@/hooks/useAttachments";
+import { AttachmentsList } from "./AttachmentsList";
+import { DragDropOverlay } from "./DragDropOverlay";
 
 const showTokenBarAtom = atom(false);
 
@@ -73,6 +77,20 @@ export function ChatInput({ chatId }: { chatId?: number }) {
   const setIsPreviewOpen = useSetAtom(isPreviewOpenAtom);
   const [showTokenBar, setShowTokenBar] = useAtom(showTokenBarAtom);
 
+  // Use the attachments hook
+  const {
+    attachments,
+    fileInputRef,
+    isDraggingOver,
+    handleAttachmentClick,
+    handleFileChange,
+    removeAttachment,
+    handleDragOver,
+    handleDragLeave,
+    handleDrop,
+    clearAttachments,
+  } = useAttachments();
+
   // Use the hook to fetch the proposal
   const {
     proposalResult,
@@ -118,13 +136,25 @@ export function ChatInput({ chatId }: { chatId?: number }) {
   };
 
   const handleSubmit = async () => {
-    if (!inputValue.trim() || isStreaming || !chatId) {
+    if (
+      (!inputValue.trim() && attachments.length === 0) ||
+      isStreaming ||
+      !chatId
+    ) {
       return;
     }
 
     const currentInput = inputValue;
     setInputValue("");
-    await streamMessage({ prompt: currentInput, chatId });
+
+    // Send message with attachments and clear them after sending
+    await streamMessage({
+      prompt: currentInput,
+      chatId,
+      attachments,
+      redo: false,
+    });
+    clearAttachments();
     posthog.capture("chat:submit");
   };
 
@@ -236,7 +266,14 @@ export function ChatInput({ chatId }: { chatId?: number }) {
         </div>
       )}
       <div className="p-4">
-        <div className="flex flex-col border border-border rounded-lg bg-(--background-lighter) shadow-sm">
+        <div
+          className={`relative flex flex-col border border-border rounded-lg bg-(--background-lighter) shadow-sm ${
+            isDraggingOver ? "ring-2 ring-blue-500 border-blue-500" : ""
+          }`}
+          onDragOver={handleDragOver}
+          onDragLeave={handleDragLeave}
+          onDrop={handleDrop}
+        >
           {/* Only render ChatInputActions if proposal is loaded */}
           {proposal && proposalResult?.chatId === chatId && (
             <ChatInputActions
@@ -255,6 +292,16 @@ export function ChatInput({ chatId }: { chatId?: number }) {
               isRejecting={isRejecting}
             />
           )}
+
+          {/* Use the AttachmentsList component */}
+          <AttachmentsList
+            attachments={attachments}
+            onRemove={removeAttachment}
+          />
+
+          {/* Use the DragDropOverlay component */}
+          <DragDropOverlay isDraggingOver={isDraggingOver} />
+
           <div className="flex items-start space-x-2 ">
             <textarea
               ref={textareaRef}
@@ -266,6 +313,25 @@ export function ChatInput({ chatId }: { chatId?: number }) {
               style={{ resize: "none" }}
               disabled={isStreaming}
             />
+
+            {/* File attachment button */}
+            <button
+              onClick={handleAttachmentClick}
+              className="px-2 py-2 mt-1 mr-1 hover:bg-(--background-darkest) text-(--sidebar-accent-fg) rounded-lg disabled:opacity-50"
+              disabled={isStreaming}
+              title="Attach files"
+            >
+              <Paperclip size={20} />
+            </button>
+            <input
+              type="file"
+              ref={fileInputRef}
+              onChange={handleFileChange}
+              className="hidden"
+              multiple
+              accept=".jpg,.jpeg,.png,.gif,.webp,.txt,.md,.js,.ts,.html,.css,.json,.csv"
+            />
+
             {isStreaming ? (
               <button
                 onClick={handleCancel}
@@ -277,7 +343,10 @@ export function ChatInput({ chatId }: { chatId?: number }) {
             ) : (
               <button
                 onClick={handleSubmit}
-                disabled={!inputValue.trim() || !isAnyProviderSetup()}
+                disabled={
+                  (!inputValue.trim() && attachments.length === 0) ||
+                  !isAnyProviderSetup()
+                }
                 className="px-2 py-2 mt-1 mr-2 hover:bg-(--background-darkest) text-(--sidebar-accent-fg) rounded-lg disabled:opacity-50"
               >
                 <SendIcon size={20} />
diff --git a/src/components/chat/DragDropOverlay.tsx b/src/components/chat/DragDropOverlay.tsx
new file mode 100644
index 0000000..1239c97
--- /dev/null
+++ b/src/components/chat/DragDropOverlay.tsx
@@ -0,0 +1,18 @@
+import { Paperclip } from "lucide-react";
+
+interface DragDropOverlayProps {
+  isDraggingOver: boolean;
+}
+
+export function DragDropOverlay({ isDraggingOver }: DragDropOverlayProps) {
+  if (!isDraggingOver) return null;
+
+  return (
+    <div className="absolute inset-0 bg-blue-100/30 dark:bg-blue-900/30 flex items-center justify-center rounded-lg z-10 pointer-events-none">
+      <div className="bg-background p-4 rounded-lg shadow-lg text-center">
+        <Paperclip className="mx-auto mb-2 text-blue-500" />
+        <p className="text-sm font-medium">Drop files to attach</p>
+      </div>
+    </div>
+  );
+}
diff --git a/src/components/chat/HomeChatInput.tsx b/src/components/chat/HomeChatInput.tsx
index 9bad8f3..49a007a 100644
--- a/src/components/chat/HomeChatInput.tsx
+++ b/src/components/chat/HomeChatInput.tsx
@@ -1,4 +1,4 @@
-import { SendIcon, StopCircleIcon, X } from "lucide-react";
+import { SendIcon, StopCircleIcon, X, Paperclip, Loader2 } from "lucide-react";
 import type React from "react";
 import { useEffect, useRef, useState } from "react";
 import { ModelPicker } from "@/components/ModelPicker";
@@ -6,14 +6,39 @@ import { useSettings } from "@/hooks/useSettings";
 import { homeChatInputValueAtom } from "@/atoms/chatAtoms"; // Use a different atom for home input
 import { useAtom } from "jotai";
 import { useStreamChat } from "@/hooks/useStreamChat";
+import { useAttachments } from "@/hooks/useAttachments";
+import { AttachmentsList } from "./AttachmentsList";
+import { DragDropOverlay } from "./DragDropOverlay";
+import { usePostHog } from "posthog-js/react";
+import { HomeSubmitOptions } from "@/pages/home";
 
-export function HomeChatInput({ onSubmit }: { onSubmit: () => void }) {
+export function HomeChatInput({
+  onSubmit,
+}: {
+  onSubmit: (options?: HomeSubmitOptions) => void;
+}) {
+  const posthog = usePostHog();
   const [inputValue, setInputValue] = useAtom(homeChatInputValueAtom);
   const textareaRef = useRef<HTMLTextAreaElement>(null);
   const { settings, updateSettings, isAnyProviderSetup } = useSettings();
   const { streamMessage, isStreaming, setIsStreaming } = useStreamChat({
     hasChatId: false,
   }); // eslint-disable-line @typescript-eslint/no-unused-vars
+
+  // Use the attachments hook
+  const {
+    attachments,
+    fileInputRef,
+    isDraggingOver,
+    handleAttachmentClick,
+    handleFileChange,
+    removeAttachment,
+    handleDragOver,
+    handleDragLeave,
+    handleDrop,
+    clearAttachments,
+  } = useAttachments();
+
   const adjustHeight = () => {
     const textarea = textareaRef.current;
     if (textarea) {
@@ -30,10 +55,24 @@ export function HomeChatInput({ onSubmit }: { onSubmit: () => void }) {
   const handleKeyPress = (e: React.KeyboardEvent) => {
     if (e.key === "Enter" && !e.shiftKey) {
       e.preventDefault();
-      onSubmit();
+      handleCustomSubmit();
     }
   };
 
+  // Custom submit function that wraps the provided onSubmit
+  const handleCustomSubmit = () => {
+    if ((!inputValue.trim() && attachments.length === 0) || isStreaming) {
+      return;
+    }
+
+    // Call the parent's onSubmit handler with attachments
+    onSubmit({ attachments });
+
+    // Clear attachments as part of submission process
+    clearAttachments();
+    posthog.capture("chat:home_submit");
+  };
+
   if (!settings) {
     return null; // Or loading state
   }
@@ -41,7 +80,23 @@ export function HomeChatInput({ onSubmit }: { onSubmit: () => void }) {
   return (
     <>
       <div className="p-4">
-        <div className="flex flex-col space-y-2 border border-border rounded-lg bg-(--background-lighter) shadow-sm">
+        <div
+          className={`relative flex flex-col space-y-2 border border-border rounded-lg bg-(--background-lighter) shadow-sm ${
+            isDraggingOver ? "ring-2 ring-blue-500 border-blue-500" : ""
+          }`}
+          onDragOver={handleDragOver}
+          onDragLeave={handleDragLeave}
+          onDrop={handleDrop}
+        >
+          {/* Attachments list */}
+          <AttachmentsList
+            attachments={attachments}
+            onRemove={removeAttachment}
+          />
+
+          {/* Drag and drop overlay */}
+          <DragDropOverlay isDraggingOver={isDraggingOver} />
+
           <div className="flex items-start space-x-2 ">
             <textarea
               ref={textareaRef}
@@ -53,6 +108,25 @@ export function HomeChatInput({ onSubmit }: { onSubmit: () => void }) {
               style={{ resize: "none" }}
               disabled={isStreaming} // Should ideally reflect if *any* stream is happening
             />
+
+            {/* File attachment button */}
+            <button
+              onClick={handleAttachmentClick}
+              className="px-2 py-2 mt-1 mr-1 hover:bg-(--background-darkest) text-(--sidebar-accent-fg) rounded-lg disabled:opacity-50"
+              disabled={isStreaming}
+              title="Attach files"
+            >
+              <Paperclip size={20} />
+            </button>
+            <input
+              type="file"
+              ref={fileInputRef}
+              onChange={handleFileChange}
+              className="hidden"
+              multiple
+              accept=".jpg,.jpeg,.png,.gif,.webp,.txt,.md,.js,.ts,.html,.css,.json,.csv"
+            />
+
             {isStreaming ? (
               <button
                 className="px-2 py-2 mt-1 mr-2 text-(--sidebar-accent-fg) rounded-lg opacity-50 cursor-not-allowed" // Indicate disabled state
@@ -62,8 +136,11 @@ export function HomeChatInput({ onSubmit }: { onSubmit: () => void }) {
               </button>
             ) : (
               <button
-                onClick={onSubmit}
-                disabled={!inputValue.trim() || !isAnyProviderSetup()}
+                onClick={handleCustomSubmit}
+                disabled={
+                  (!inputValue.trim() && attachments.length === 0) ||
+                  !isAnyProviderSetup()
+                }
                 className="px-2 py-2 mt-1 mr-2 hover:bg-(--background-darkest) text-(--sidebar-accent-fg) rounded-lg disabled:opacity-50"
                 title="Start new chat"
               >
diff --git a/src/hooks/useAttachments.ts b/src/hooks/useAttachments.ts
new file mode 100644
index 0000000..95ed53e
--- /dev/null
+++ b/src/hooks/useAttachments.ts
@@ -0,0 +1,58 @@
+import { useState, useRef } from "react";
+
+export function useAttachments() {
+  const [attachments, setAttachments] = useState<File[]>([]);
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [isDraggingOver, setIsDraggingOver] = useState(false);
+
+  const handleAttachmentClick = () => {
+    fileInputRef.current?.click();
+  };
+
+  const handleFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    if (e.target.files && e.target.files.length > 0) {
+      const files = Array.from(e.target.files);
+      setAttachments((attachments) => [...attachments, ...files]);
+    }
+  };
+
+  const removeAttachment = (index: number) => {
+    setAttachments(attachments.filter((_, i) => i !== index));
+  };
+
+  const handleDragOver = (e: React.DragEvent) => {
+    e.preventDefault();
+    setIsDraggingOver(true);
+  };
+
+  const handleDragLeave = () => {
+    setIsDraggingOver(false);
+  };
+
+  const handleDrop = (e: React.DragEvent) => {
+    e.preventDefault();
+    setIsDraggingOver(false);
+
+    if (e.dataTransfer.files && e.dataTransfer.files.length > 0) {
+      const files = Array.from(e.dataTransfer.files);
+      setAttachments((attachments) => [...attachments, ...files]);
+    }
+  };
+
+  const clearAttachments = () => {
+    setAttachments([]);
+  };
+
+  return {
+    attachments,
+    fileInputRef,
+    isDraggingOver,
+    handleAttachmentClick,
+    handleFileChange,
+    removeAttachment,
+    handleDragOver,
+    handleDragLeave,
+    handleDrop,
+    clearAttachments,
+  };
+}
diff --git a/src/hooks/useStreamChat.ts b/src/hooks/useStreamChat.ts
index abf7156..c606ed1 100644
--- a/src/hooks/useStreamChat.ts
+++ b/src/hooks/useStreamChat.ts
@@ -52,12 +52,17 @@ export function useStreamChat({
       prompt,
       chatId,
       redo,
+      attachments,
     }: {
       prompt: string;
       chatId: number;
       redo?: boolean;
+      attachments?: File[];
     }) => {
-      if (!prompt.trim() || !chatId) {
+      if (
+        (!prompt.trim() && (!attachments || attachments.length === 0)) ||
+        !chatId
+      ) {
         return;
       }
 
@@ -68,6 +73,7 @@ export function useStreamChat({
         IpcClient.getInstance().streamMessage(prompt, {
           chatId,
           redo,
+          attachments,
           onUpdate: (updatedMessages: Message[]) => {
             if (!hasIncrementedStreamCount) {
               setStreamCount((streamCount) => streamCount + 1);
diff --git a/src/ipc/handlers/chat_stream_handlers.ts b/src/ipc/handlers/chat_stream_handlers.ts
index 4881650..99eed0c 100644
--- a/src/ipc/handlers/chat_stream_handlers.ts
+++ b/src/ipc/handlers/chat_stream_handlers.ts
@@ -1,5 +1,5 @@
 import { ipcMain } from "electron";
-import { CoreMessage, streamText } from "ai";
+import { CoreMessage, TextPart, ImagePart, streamText } from "ai";
 import { db } from "../../db";
 import { chats, messages } from "../../db/schema";
 import { and, eq, isNull } from "drizzle-orm";
@@ -22,6 +22,11 @@ import {
   getSupabaseClientCode,
 } from "../../supabase_admin/supabase_context";
 import { SUMMARIZE_CHAT_SYSTEM_PROMPT } from "../../prompts/summarize_chat_system_prompt";
+import * as fs from "fs";
+import * as path from "path";
+import * as os from "os";
+import * as crypto from "crypto";
+import { stat, readFile, writeFile, mkdir, unlink } from "fs/promises";
 
 const logger = log.scope("chat_stream_handlers");
 
@@ -31,6 +36,44 @@ const activeStreams = new Map<number, AbortController>();
 // Track partial responses for cancelled streams
 const partialResponses = new Map<number, string>();
 
+// Directory for storing temporary files
+const TEMP_DIR = path.join(os.tmpdir(), "dyad-attachments");
+
+// Common helper functions
+const TEXT_FILE_EXTENSIONS = [
+  ".md",
+  ".txt",
+  ".json",
+  ".csv",
+  ".js",
+  ".ts",
+  ".html",
+  ".css",
+];
+
+async function isTextFile(filePath: string): Promise<boolean> {
+  const ext = path.extname(filePath).toLowerCase();
+  return TEXT_FILE_EXTENSIONS.includes(ext);
+}
+
+// Ensure the temp directory exists
+if (!fs.existsSync(TEMP_DIR)) {
+  fs.mkdirSync(TEMP_DIR, { recursive: true });
+}
+
+// First, define the proper content types to match ai SDK
+type TextContent = {
+  type: "text";
+  text: string;
+};
+
+type ImageContent = {
+  type: "image";
+  image: Buffer;
+};
+
+type MessageContent = TextContent | ImageContent;
+
 export function registerChatStreamHandlers() {
   ipcMain.handle("chat:stream", async (event, req: ChatStreamParams) => {
     try {
@@ -87,13 +130,50 @@ export function registerChatStreamHandlers() {
         }
       }
 
-      // Add user message to database
+      // Process attachments if any
+      let attachmentInfo = "";
+      let attachmentPaths: string[] = [];
+
+      if (req.attachments && req.attachments.length > 0) {
+        attachmentInfo = "\n\nAttachments:\n";
+
+        for (const attachment of req.attachments) {
+          // Generate a unique filename
+          const hash = crypto
+            .createHash("md5")
+            .update(attachment.name + Date.now())
+            .digest("hex");
+          const fileExtension = path.extname(attachment.name);
+          const filename = `${hash}${fileExtension}`;
+          const filePath = path.join(TEMP_DIR, filename);
+
+          // Extract the base64 data (remove the data:mime/type;base64, prefix)
+          const base64Data = attachment.data.split(";base64,").pop() || "";
+
+          await writeFile(filePath, Buffer.from(base64Data, "base64"));
+          attachmentPaths.push(filePath);
+          attachmentInfo += `- ${attachment.name} (${attachment.type})\n`;
+          // If it's a text-based file, try to include the content
+          if (await isTextFile(filePath)) {
+            try {
+              attachmentInfo += `<dyad-text-attachment filename="${attachment.name}" type="${attachment.type}" path="${filePath}">
+              </dyad-text-attachment>
+              \n\n`;
+            } catch (err) {
+              logger.error(`Error reading file content: ${err}`);
+            }
+          }
+        }
+      }
+
+      // Add user message to database with attachment info
+      const userPrompt = req.prompt + (attachmentInfo ? attachmentInfo : "");
       await db
         .insert(messages)
         .values({
           chatId: req.chatId,
           role: "user",
-          content: req.prompt,
+          content: userPrompt,
         })
         .returning();
 
@@ -188,7 +268,28 @@ export function registerChatStreamHandlers() {
         if (isSummarizeIntent) {
           systemPrompt = SUMMARIZE_CHAT_SYSTEM_PROMPT;
         }
-        let chatMessages = [
+
+        // Update the system prompt for images if there are image attachments
+        const hasImageAttachments =
+          req.attachments &&
+          req.attachments.some((attachment) =>
+            attachment.type.startsWith("image/")
+          );
+
+        if (hasImageAttachments) {
+          systemPrompt += `
+
+# Image Analysis Capabilities
+This conversation includes one or more image attachments. When the user uploads images:
+1. If the user explicitly asks for analysis, description, or information about the image, please analyze the image content.
+2. Describe what you see in the image if asked.
+3. You can use images as references when the user has coding or design-related questions.
+4. For diagrams or wireframes, try to understand the content and structure shown.
+5. For screenshots of code or errors, try to identify the issue or explain the code.
+`;
+        }
+
+        let chatMessages: CoreMessage[] = [
           {
             role: "user",
             content: "This is my codebase. " + codebaseInfo,
@@ -197,8 +298,26 @@ export function registerChatStreamHandlers() {
             role: "assistant",
             content: "OK, got it. I'm ready to help",
           },
-          ...messageHistory,
-        ] satisfies CoreMessage[];
+          ...messageHistory.map((msg) => ({
+            role: msg.role as "user" | "assistant" | "system",
+            content: msg.content,
+          })),
+        ];
+
+        // Check if the last message should include attachments
+        if (chatMessages.length >= 2 && attachmentPaths.length > 0) {
+          const lastUserIndex = chatMessages.length - 2;
+          const lastUserMessage = chatMessages[lastUserIndex];
+
+          if (lastUserMessage.role === "user") {
+            // Replace the last message with one that includes attachments
+            chatMessages[lastUserIndex] = await prepareMessageWithAttachments(
+              lastUserMessage,
+              attachmentPaths
+            );
+          }
+        }
+
         if (isSummarizeIntent) {
           const previousChat = await db.query.chats.findFirst({
             where: eq(chats.id, parseInt(req.prompt.split("=")[1])),
@@ -217,6 +336,8 @@ export function registerChatStreamHandlers() {
             } satisfies CoreMessage,
           ];
         }
+
+        // When calling streamText, the messages need to be properly formatted for mixed content
         const { textStream } = streamText({
           maxTokens: getMaxTokens(settings.selectedModel),
           temperature: 0,
@@ -374,6 +495,24 @@ export function registerChatStreamHandlers() {
         }
       }
 
+      // Clean up any temporary files
+      if (attachmentPaths.length > 0) {
+        for (const filePath of attachmentPaths) {
+          try {
+            // We don't immediately delete files because they might be needed for reference
+            // Instead, schedule them for deletion after some time
+            setTimeout(async () => {
+              if (fs.existsSync(filePath)) {
+                await unlink(filePath);
+                logger.log(`Deleted temporary file: ${filePath}`);
+              }
+            }, 30 * 60 * 1000); // Delete after 30 minutes
+          } catch (error) {
+            logger.error(`Error scheduling file deletion: ${error}`);
+          }
+        }
+      }
+
       // Return the chat ID for backwards compatibility
       return req.chatId;
     } catch (error) {
@@ -418,3 +557,99 @@ export function formatMessages(
     .map((m) => `<message role="${m.role}">${m.content}</message>`)
     .join("\n");
 }
+
+// Helper function to replace text attachment placeholders with full content
+async function replaceTextAttachmentWithContent(
+  text: string,
+  filePath: string,
+  fileName: string
+): Promise<string> {
+  try {
+    if (await isTextFile(filePath)) {
+      // Read the full content
+      const fullContent = await readFile(filePath, "utf-8");
+
+      // Replace the placeholder tag with the full content
+      const escapedPath = filePath.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+      const tagPattern = new RegExp(
+        `<dyad-text-attachment filename="[^"]*" type="[^"]*" path="${escapedPath}">\\s*<\\/dyad-text-attachment>`,
+        "g"
+      );
+
+      const replacedText = text.replace(
+        tagPattern,
+        `Full content of ${fileName}:\n\`\`\`\n${fullContent}\n\`\`\``
+      );
+
+      logger.log(
+        `Replaced text attachment content for: ${fileName} - length before: ${text.length} - length after: ${replacedText.length}`
+      );
+      return replacedText;
+    }
+    return text;
+  } catch (error) {
+    logger.error(`Error processing text file: ${error}`);
+    return text;
+  }
+}
+
+// Helper function to convert traditional message to one with proper image attachments
+async function prepareMessageWithAttachments(
+  message: CoreMessage,
+  attachmentPaths: string[]
+): Promise<CoreMessage> {
+  let textContent = message.content;
+  // Get the original text content
+  if (typeof textContent !== "string") {
+    logger.warn(
+      "Message content is not a string - shouldn't happen but using message as-is"
+    );
+    return message;
+  }
+
+  // Process text file attachments - replace placeholder tags with full content
+  for (const filePath of attachmentPaths) {
+    const fileName = path.basename(filePath);
+    textContent = await replaceTextAttachmentWithContent(
+      textContent,
+      filePath,
+      fileName
+    );
+  }
+
+  // For user messages with attachments, create a content array
+  const contentParts: (TextPart | ImagePart)[] = [];
+
+  // Add the text part first with possibly modified content
+  contentParts.push({
+    type: "text",
+    text: textContent,
+  });
+
+  // Add image parts for any image attachments
+  for (const filePath of attachmentPaths) {
+    const ext = path.extname(filePath).toLowerCase();
+    if ([".jpg", ".jpeg", ".png", ".gif", ".webp"].includes(ext)) {
+      try {
+        // Read the file as a buffer
+        const imageBuffer = await readFile(filePath);
+
+        // Add the image to the content parts
+        contentParts.push({
+          type: "image",
+          image: imageBuffer,
+        });
+
+        logger.log(`Added image attachment: ${filePath}`);
+      } catch (error) {
+        logger.error(`Error reading image file: ${error}`);
+      }
+    }
+  }
+
+  // Return the message with the content array
+  return {
+    role: "user",
+    content: contentParts,
+  };
+}
diff --git a/src/ipc/ipc_client.ts b/src/ipc/ipc_client.ts
index 472fc02..4374c99 100644
--- a/src/ipc/ipc_client.ts
+++ b/src/ipc/ipc_client.ts
@@ -240,26 +240,71 @@ export class IpcClient {
     options: {
       chatId: number;
       redo?: boolean;
+      attachments?: File[];
       onUpdate: (messages: Message[]) => void;
       onEnd: (response: ChatResponseEnd) => void;
       onError: (error: string) => void;
     }
   ): void {
-    const { chatId, onUpdate, onEnd, onError, redo } = options;
+    const { chatId, redo, attachments, onUpdate, onEnd, onError } = options;
     this.chatStreams.set(chatId, { onUpdate, onEnd, onError });
 
-    // Use invoke to start the stream and pass the chatId
-    this.ipcRenderer
-      .invoke("chat:stream", {
-        prompt,
-        chatId,
-        redo,
-      } satisfies ChatStreamParams)
-      .catch((err) => {
-        showError(err);
-        onError(String(err));
-        this.chatStreams.delete(chatId);
-      });
+    // Handle file attachments if provided
+    if (attachments && attachments.length > 0) {
+      // Process each file and convert to base64
+      Promise.all(
+        attachments.map(async (file) => {
+          return new Promise<{ name: string; type: string; data: string }>(
+            (resolve, reject) => {
+              const reader = new FileReader();
+              reader.onload = () => {
+                resolve({
+                  name: file.name,
+                  type: file.type,
+                  data: reader.result as string,
+                });
+              };
+              reader.onerror = () =>
+                reject(new Error(`Failed to read file: ${file.name}`));
+              reader.readAsDataURL(file);
+            }
+          );
+        })
+      )
+        .then((fileDataArray) => {
+          // Use invoke to start the stream and pass the chatId and attachments
+          this.ipcRenderer
+            .invoke("chat:stream", {
+              prompt,
+              chatId,
+              redo,
+              attachments: fileDataArray,
+            })
+            .catch((err) => {
+              showError(err);
+              onError(String(err));
+              this.chatStreams.delete(chatId);
+            });
+        })
+        .catch((err) => {
+          showError(err);
+          onError(String(err));
+          this.chatStreams.delete(chatId);
+        });
+    } else {
+      // No attachments, proceed normally
+      this.ipcRenderer
+        .invoke("chat:stream", {
+          prompt,
+          chatId,
+          redo,
+        })
+        .catch((err) => {
+          showError(err);
+          onError(String(err));
+          this.chatStreams.delete(chatId);
+        });
+    }
   }
 
   // Method to cancel an ongoing stream
diff --git a/src/ipc/ipc_types.ts b/src/ipc/ipc_types.ts
index 972d74a..04ddbca 100644
--- a/src/ipc/ipc_types.ts
+++ b/src/ipc/ipc_types.ts
@@ -14,6 +14,11 @@ export interface ChatStreamParams {
   chatId: number;
   prompt: string;
   redo?: boolean;
+  attachments?: Array<{
+    name: string;
+    type: string;
+    data: string; // Base64 encoded file data
+  }>;
 }
 
 export interface ChatResponseEnd {
diff --git a/src/pages/home.tsx b/src/pages/home.tsx
index ea8a684..6528603 100644
--- a/src/pages/home.tsx
+++ b/src/pages/home.tsx
@@ -25,6 +25,11 @@ import { useTheme } from "@/contexts/ThemeContext";
 import { Button } from "@/components/ui/button";
 import { ExternalLink } from "lucide-react";
 
+// Adding an export for attachments
+export interface HomeSubmitOptions {
+  attachments?: File[];
+}
+
 export default function HomePage() {
   const [inputValue, setInputValue] = useAtom(homeChatInputValueAtom);
   const navigate = useNavigate();
@@ -91,8 +96,10 @@ export default function HomePage() {
     }
   }, [appId, navigate]);
 
-  const handleSubmit = async () => {
-    if (!inputValue.trim()) return;
+  const handleSubmit = async (options?: HomeSubmitOptions) => {
+    const attachments = options?.attachments || [];
+
+    if (!inputValue.trim() && attachments.length === 0) return;
 
     try {
       setIsLoading(true);
@@ -101,8 +108,12 @@ export default function HomePage() {
         name: generateCuteAppName(),
       });
 
-      // Stream the message
-      streamMessage({ prompt: inputValue, chatId: result.chatId });
+      // Stream the message with attachments
+      streamMessage({
+        prompt: inputValue,
+        chatId: result.chatId,
+        attachments,
+      });
       await new Promise((resolve) => setTimeout(resolve, 2000));
 
       setInputValue("");