전체적인 리팩토링

app/api/autotrade/sessions/heartbeat/route.ts

@@ -0,0 +1,73 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+import {
+  AUTOTRADE_API_ERROR_CODE,
+  createAutotradeErrorResponse,
+  getAutotradeSession,
+  getAutotradeUserId,
+  readJsonBody,
+  sanitizeAutotradeError,
+  upsertAutotradeSession,
+} from "@/app/api/autotrade/_shared";
+
+const heartbeatRequestSchema = z.object({
+  sessionId: z.string().uuid(),
+  leaderTabId: z.string().trim().min(1).max(100).optional(),
+});
+
+export async function POST(request: Request) {
+  const userId = await getAutotradeUserId(request.headers);
+  if (!userId) {
+    return createAutotradeErrorResponse({
+      status: 401,
+      code: AUTOTRADE_API_ERROR_CODE.AUTH_REQUIRED,
+      message: "로그인이 필요합니다.",
+    });
+  }
+
+  const rawBody = await readJsonBody(request);
+  const parsed = heartbeatRequestSchema.safeParse(rawBody);
+  if (!parsed.success) {
+    return createAutotradeErrorResponse({
+      status: 400,
+      code: AUTOTRADE_API_ERROR_CODE.INVALID_REQUEST,
+      message: parsed.error.issues[0]?.message ?? "heartbeat 요청값이 올바르지 않습니다.",
+    });
+  }
+
+  try {
+    const session = getAutotradeSession(userId);
+    if (!session || session.runtimeState !== "RUNNING") {
+      return createAutotradeErrorResponse({
+        status: 404,
+        code: AUTOTRADE_API_ERROR_CODE.SESSION_NOT_FOUND,
+        message: "실행 중인 자동매매 세션이 없습니다.",
+      });
+    }
+
+    if (session.sessionId !== parsed.data.sessionId) {
+      return createAutotradeErrorResponse({
+        status: 409,
+        code: AUTOTRADE_API_ERROR_CODE.CONFLICT,
+        message: "세션 식별자가 일치하지 않습니다.",
+      });
+    }
+
+    const updated = upsertAutotradeSession({
+      ...session,
+      lastHeartbeatAt: new Date().toISOString(),
+      leaderTabId: parsed.data.leaderTabId ?? session.leaderTabId,
+    });
+
+    return NextResponse.json({
+      ok: true,
+      session: updated,
+    });
+  } catch (error) {
+    return createAutotradeErrorResponse({
+      status: 500,
+      code: AUTOTRADE_API_ERROR_CODE.INTERNAL,
+      message: sanitizeAutotradeError(error, "heartbeat 처리 중 오류가 발생했습니다."),
+    });
+  }
+}