import typing as t
from flask import Flask, request
from . import signal

app = Flask(__name__)


@app.route("/")
def root() -> t.Tuple[str, int]:
    return "Not supported.", 400


@app.route("/alertmanager", methods=["POST"])
def alertmanager():
    data = request.get_json(cache=False)
    if "version" not in data or int(data["version"]) != 4:
        return "Bad API version", 400
    if "alerts" not in data:
        return "No alerts", 400
    if "status" not in data:
        return "No status", 400
    if data["status"] != "firing":
        # Ignore
        return "OK", 200

    for alert in data["alerts"]:
        ...