adding a button for fixing all errors (#1785)

closes #1688 



<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Add a “Fix All Errors” button to the chat that collects all error
messages and sends a single request to resolve them. This helps users
fix multiple errors in one step.

- New Features
- Parse dyad-output type=error messages and track count/last index in
DyadMarkdownParser.
- Show FixAllErrorsButton after the last error when there are 2+ errors,
not streaming, and chatId is present.
- Button streams a prompt listing all errors, shows a loading state, and
displays the error count.

<sup>Written for commit b9762955d3b9cecd3b00c9efb478ce599f60e32d.
Summary will update automatically on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

src/components/chat/DyadMarkdownParser.tsx

@@ -28,6 +28,7 @@ import { DyadCodeSearch } from "./DyadCodeSearch";
 import { DyadRead } from "./DyadRead";
 import { mapActionToButton } from "./ChatInput";
 import { SuggestedAction } from "@/lib/schemas";
+import { FixAllErrorsButton } from "./FixAllErrorsButton";
 
 interface DyadMarkdownParserProps {
   content: string;
@@ -90,6 +91,34 @@ export const DyadMarkdownParser: React.FC<DyadMarkdownParserProps> = ({
     return parseCustomTags(content);
   }, [content]);
 
+  // Extract error messages and track positions
+  const { errorMessages, lastErrorIndex, errorCount } = useMemo(() => {
+    const errors: string[] = [];
+    let lastIndex = -1;
+    let count = 0;
+
+    contentPieces.forEach((piece, index) => {
+      if (
+        piece.type === "custom-tag" &&
+        piece.tagInfo.tag === "dyad-output" &&
+        piece.tagInfo.attributes.type === "error"
+      ) {
+        const errorMessage = piece.tagInfo.attributes.message;
+        if (errorMessage?.trim()) {
+          errors.push(errorMessage.trim());
+          count++;
+          lastIndex = index;
+        }
+      }
+    });
+
+    return {
+      errorMessages: errors,
+      lastErrorIndex: lastIndex,
+      errorCount: count,
+    };
+  }, [contentPieces]);
+
   return (
     <>
       {contentPieces.map((piece, index) => (
@@ -106,6 +135,17 @@ export const DyadMarkdownParser: React.FC<DyadMarkdownParserProps> = ({
                 </ReactMarkdown>
               )
             : renderCustomTag(piece.tagInfo, { isStreaming })}
+          {index === lastErrorIndex &&
+            errorCount > 1 &&
+            !isStreaming &&
+            chatId && (
+              <div className="mt-3 w-full flex">
+                <FixAllErrorsButton
+                  errorMessages={errorMessages}
+                  chatId={chatId}
+                />
+              </div>
+            )}
         </React.Fragment>
       ))}
     </>

src/components/chat/FixAllErrorsButton.tsx

@@ -0,0 +1,47 @@
+import { Button } from "@/components/ui/button";
+import { useStreamChat } from "@/hooks/useStreamChat";
+import { Sparkles, Loader2 } from "lucide-react";
+import { useState } from "react";
+
+interface FixAllErrorsButtonProps {
+  errorMessages: string[];
+  chatId: number;
+}
+
+export function FixAllErrorsButton({
+  errorMessages,
+  chatId,
+}: FixAllErrorsButtonProps) {
+  const { streamMessage } = useStreamChat();
+  const [isLoading, setIsLoading] = useState(false);
+
+  const handleFixAllErrors = () => {
+    setIsLoading(true);
+    const allErrors = errorMessages
+      .map((msg, i) => `${i + 1}. ${msg}`)
+      .join("\n");
+
+    streamMessage({
+      prompt: `Fix all of the following errors:\n\n${allErrors}`,
+      chatId,
+      onSettled: () => setIsLoading(false),
+    });
+  };
+
+  return (
+    <Button
+      variant="outline"
+      size="sm"
+      disabled={isLoading}
+      onClick={handleFixAllErrors}
+      className="bg-red-50 hover:bg-red-100 dark:bg-red-950 dark:hover:bg-red-900 text-red-700 dark:text-red-300 border-red-200 dark:border-red-800 ml-auto hover:cursor-pointer"
+    >
+      {isLoading ? (
+        <Loader2 size={16} className="mr-1 animate-spin" />
+      ) : (
+        <Sparkles size={16} className="mr-1" />
+      )}
+      Fix All Errors ({errorMessages.length})
+    </Button>
+  );
+}