from flask import Flask, request, jsonify
import requests, os

app = Flask(__name__)

@app.route("/alert", methods=["POST"])
def handle_alert():
    payload = request.json

    # Datadog webhook 载荷字段
    alert_title = payload.get("title", "Unknown alert")
    tags_str = payload.get("tags", "")
    service = next(
        (t.split(":", 1)[1] for t in tags_str.split(",") if t.strip().startswith("service:")),
        "unknown-service"
    )
    alert_url = payload.get("link", "")

    org_id = os.environ["DEVIN_ORG_ID"]
    response = requests.post(
        f"https://api.devin.ai/v3/organizations/{org_id}/sessions",
        headers={"Authorization": f"Bearer {os.environ['DEVIN_API_KEY']}"},
        json={
            "prompt": (
                f"Datadog alert fired: '{alert_title}'\n"
                f"Service: {service}\n"
                f"Alert link: {alert_url}\n\n"
                "Using the Datadog MCP:\n"
                "1. Pull error logs for this service from the past 30 min\n"
                "2. Identify the top error messages and stack traces\n"
                "3. Check if this correlates with a recent deploy\n"
                "4. If the root cause is clear, open a hotfix PR\n"
                "5. Post your findings to #incidents on Slack"
            ),
            "playbook_id": "14fed18b89d44713a26e673cf258f548",
        }
    )
    return jsonify(response.json()), 200

告警调查：payments-service 错误率飙升

时间线：
- 14:28 UTC — Deploy #492 发布（commit abc123f）
- 14:31 UTC — 错误率从 0.3% 跃升至 5.2%
- 14:32 UTC — 告警触发

根本原因：Deploy #492 将 Stripe webhook 处理程序
（src/webhooks/stripe.ts）重构为 async/await，但移除了
handlePaymentIntent() 外层的 try/catch。未处理的 rejection 导致
约 4% 的结账请求返回 500 错误。

修复方案：添加了错误边界，引入结构化日志记录，并对客户端错误返回
规范的 4xx 响应。

PR #493 已创建 → https://github.com/acme/payments/pull/493