refactor: share browser route helpers

src/browser/routes/agent.snapshot.ts

@@ -122,6 +122,27 @@ async function renderChromeMcpLabels(params: {
   return { labels, skipped };
 }
 
+async function saveNormalizedScreenshotResponse(params: {
+  res: BrowserResponse;
+  buffer: Buffer;
+  type: "png" | "jpeg";
+  targetId: string;
+  url: string;
+}) {
+  const normalized = await normalizeBrowserScreenshot(params.buffer, {
+    maxSide: DEFAULT_BROWSER_SCREENSHOT_MAX_SIDE,
+    maxBytes: DEFAULT_BROWSER_SCREENSHOT_MAX_BYTES,
+  });
+  await saveBrowserMediaResponse({
+    res: params.res,
+    buffer: normalized.buffer,
+    contentType: normalized.contentType ?? `image/${params.type}`,
+    maxBytes: DEFAULT_BROWSER_SCREENSHOT_MAX_BYTES,
+    targetId: params.targetId,
+    url: params.url,
+  });
+}
+
 async function saveBrowserMediaResponse(params: {
   res: BrowserResponse;
   buffer: Buffer;
@@ -305,15 +326,10 @@ export function registerBrowserAgentSnapshotRoutes(
             fullPage,
             format: type,
           });
-          const normalized = await normalizeBrowserScreenshot(buffer, {
-            maxSide: DEFAULT_BROWSER_SCREENSHOT_MAX_SIDE,
-            maxBytes: DEFAULT_BROWSER_SCREENSHOT_MAX_BYTES,
-          });
-          await saveBrowserMediaResponse({
+          await saveNormalizedScreenshotResponse({
             res,
-            buffer: normalized.buffer,
-            contentType: normalized.contentType ?? `image/${type}`,
-            maxBytes: DEFAULT_BROWSER_SCREENSHOT_MAX_BYTES,
+            buffer,
+            type,
             targetId: tab.targetId,
             url: tab.url,
           });
@@ -350,15 +366,10 @@ export function registerBrowserAgentSnapshotRoutes(
           });
         }
 
-        const normalized = await normalizeBrowserScreenshot(buffer, {
-          maxSide: DEFAULT_BROWSER_SCREENSHOT_MAX_SIDE,
-          maxBytes: DEFAULT_BROWSER_SCREENSHOT_MAX_BYTES,
-        });
-        await saveBrowserMediaResponse({
+        await saveNormalizedScreenshotResponse({
           res,
-          buffer: normalized.buffer,
-          contentType: normalized.contentType ?? `image/${type}`,
-          maxBytes: DEFAULT_BROWSER_SCREENSHOT_MAX_BYTES,
+          buffer,
+          type,
           targetId: tab.targetId,
           url: tab.url,
         });

src/browser/routes/basic.ts

@@ -7,6 +7,14 @@ import { resolveProfileContext } from "./agent.shared.js";
 import type { BrowserRequest, BrowserResponse, BrowserRouteRegistrar } from "./types.js";
 import { getProfileContext, jsonError, toStringOrEmpty } from "./utils.js";
 
+function handleBrowserRouteError(res: BrowserResponse, err: unknown) {
+  const mapped = toBrowserErrorResponse(err);
+  if (mapped) {
+    return jsonError(res, mapped.status, mapped.message);
+  }
+  jsonError(res, 500, String(err));
+}
+
 async function withBasicProfileRoute(params: {
   req: BrowserRequest;
   res: BrowserResponse;
@@ -20,11 +28,21 @@ async function withBasicProfileRoute(params: {
   try {
     await params.run(profileCtx);
   } catch (err) {
-    const mapped = toBrowserErrorResponse(err);
-    if (mapped) {
-      return jsonError(params.res, mapped.status, mapped.message);
-    }
-    jsonError(params.res, 500, String(err));
+    return handleBrowserRouteError(params.res, err);
+  }
+}
+
+async function withProfilesServiceMutation(params: {
+  res: BrowserResponse;
+  ctx: BrowserRouteContext;
+  run: (service: ReturnType<typeof createBrowserProfilesService>) => Promise<unknown>;
+}) {
+  try {
+    const service = createBrowserProfilesService(params.ctx);
+    const result = await params.run(service);
+    params.res.json(result);
+  } catch (err) {
+    return handleBrowserRouteError(params.res, err);
   }
 }
 
@@ -166,27 +184,22 @@ export function registerBrowserBasicRoutes(app: BrowserRouteRegistrar, ctx: Brow
       return jsonError(res, 400, "name is required");
     }
 
-    try {
-      const service = createBrowserProfilesService(ctx);
-      const result = await service.createProfile({
-        name,
-        color: color || undefined,
-        cdpUrl: cdpUrl || undefined,
-        driver:
-          driver === "extension"
-            ? "extension"
-            : driver === "existing-session"
-              ? "existing-session"
-              : undefined,
-      });
-      res.json(result);
-    } catch (err) {
-      const mapped = toBrowserErrorResponse(err);
-      if (mapped) {
-        return jsonError(res, mapped.status, mapped.message);
-      }
-      jsonError(res, 500, String(err));
-    }
+    await withProfilesServiceMutation({
+      res,
+      ctx,
+      run: async (service) =>
+        await service.createProfile({
+          name,
+          color: color || undefined,
+          cdpUrl: cdpUrl || undefined,
+          driver:
+            driver === "extension"
+              ? "extension"
+              : driver === "existing-session"
+                ? "existing-session"
+                : undefined,
+        }),
+    });
   });
 
   // Delete a profile
@@ -196,16 +209,10 @@ export function registerBrowserBasicRoutes(app: BrowserRouteRegistrar, ctx: Brow
       return jsonError(res, 400, "profile name is required");
     }
 
-    try {
-      const service = createBrowserProfilesService(ctx);
-      const result = await service.deleteProfile(name);
-      res.json(result);
-    } catch (err) {
-      const mapped = toBrowserErrorResponse(err);
-      if (mapped) {
-        return jsonError(res, mapped.status, mapped.message);
-      }
-      jsonError(res, 500, String(err));
-    }
+    await withProfilesServiceMutation({
+      res,
+      ctx,
+      run: async (service) => await service.deleteProfile(name),
+    });
   });
 }