#!/usr/bin/env python3
"""
Backup Status API
Hosts push after borgmatic backup, n8n polls this endpoint.
GET  /          → JSON summary of all hosts
POST /push?host=<name>&status=ok|error&msg=<text>  → update host status
"""
from flask import Flask, request, jsonify
import json, os, time

app = Flask(__name__)
DATA_FILE = "/data/backup_status.json"

def load():
    if os.path.exists(DATA_FILE):
        with open(DATA_FILE) as f:
            return json.load(f)
    return {}

def save(data):
    os.makedirs(os.path.dirname(DATA_FILE), exist_ok=True)
    with open(DATA_FILE, "w") as f:
        json.dump(data, f, indent=2)

@app.route("/")
def status():
    data = load()
    now = time.time()
    result = {}
    for host, info in data.items():
        age_h = (now - info.get("ts", 0)) / 3600
        if age_h > 26:
            s = "KEIN BACKUP"
        elif info.get("status") == "error":
            s = "FEHLER"
        else:
            s = "OK"
        result[host] = {
            "status": s,
            "last_backup": info.get("time", "unbekannt"),
            "msg": info.get("msg", ""),
            "age_h": round(age_h, 1)
        }
    return jsonify(result)

@app.route("/push", methods=["POST", "GET"])
def push():
    host = request.args.get("host") or request.form.get("host")
    status = request.args.get("status", "ok")
    msg = request.args.get("msg", "")
    if not host:
        return jsonify({"error": "host parameter required"}), 400
    data = load()
    data[host] = {
        "status": status,
        "msg": msg,
        "ts": time.time(),
        "time": time.strftime("%Y-%m-%d %H:%M")
    }
    save(data)
    return jsonify({"ok": True, "host": host, "status": status})

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=9999)