import os
import json
import threading
import requests
from datetime import datetime
from flask import Flask, jsonify
from flask_sqlalchemy import SQLAlchemy
from flask_cors import CORS
from lxml import etree

app = Flask(__name__)
CORS(app)

# --- 数据库配置 ---
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///monitor_data.db'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)


class ErrorLog(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    source = db.Column(db.String(50))
    name = db.Column(db.String(100))
    reason = db.Column(db.String(255))
    offset = db.Column(db.String(50))
    latest_time = db.Column(db.String(50))
    check_time = db.Column(db.String(50))
    content = db.Column(db.Text, nullable=True)


with app.app_context():
    db.create_all()

CONFIG = {
    "106": {
        "base_url": "http://106.75.72.40:7500/api/proxy/tcp",
        "primary_auth": "Basic YWRtaW46bGljYWhr",
        "login_payload": {"username": "admin", "password": "licahk", "recaptcha": ""}
    },
    "82": {
        "base_url": "http://82.156.1.111/weather/php",
        "login": {'username': 'renlixin', 'password': 'licahk', 'login': '123'}
    }
}

is_running = False


def add_error_to_db(source, name, reason, latest_time="N/A", content=None):
    days_diff = "N/A"
    if latest_time and latest_time != "N/A":
        try:
            clean_date_str = str(latest_time).split()[0].replace('_', '-')
            target_date = datetime.strptime(clean_date_str, "%Y-%m-%d").date()
            diff = (datetime.now().date() - target_date).days
            days_diff = f"滞后 {diff} 天" if diff > 0 else "当天已同步"
        except:
            days_diff = "解析失败"

    log = ErrorLog(
        source=source, name=name, reason=reason, offset=days_diff,
        latest_time=latest_time, content=content,
        check_time=datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    )
    db.session.add(log)


# --- 106 逻辑 ---
def get_106_token(port):
    try:
        resp = requests.post(f"http://106.75.72.40:{port}/api/login", json=CONFIG["106"]["login_payload"], timeout=5)
        return resp.text.strip().replace('"', '') if resp.status_code == 200 else None
    except:
        return None


def run_106_logic():
    c = CONFIG["106"]
    today_str = datetime.now().strftime("%Y_%m_%d")
    try:
        resp = requests.get(c["base_url"], headers={"Authorization": c["primary_auth"]}, timeout=10)
        for item in resp.json().get('proxies', []):
            name = item.get('name', '')
            if not name.lower().endswith('_data'): continue
            if str(item.get('status')).lower() != 'online':
                add_error_to_db("106网站", name, f"离线({item.get('status')})")
                continue

            # 此处应包含 106 具体的 JSON 内容爬取逻辑，拿到 content 字符串
            # 示例：add_error_to_db("106网站", name, "运行正常", today_str, content=raw_json_str)
            add_error_to_db("106网站", name, "同步成功", today_str, content='{"info": "106数据报文示例"}')
    except Exception as e:
        add_error_to_db("106网站", "全局错误", str(e))


# --- 82 逻辑 ---
def run_82_logic():
    c = CONFIG["82"]
    session = requests.Session()
    today_fmt = datetime.now().strftime("%Y-%m-%d")
    try:
        session.post(f"{c['base_url']}/login.php", data=c["login"], timeout=10)
        resp = session.post(f"{c['base_url']}/GetStationList.php", timeout=10)
        stations = etree.HTML(resp.content).xpath('//option/@value')
        for sid in [s for s in stations if s]:
            try:
                r = session.post(f"{c['base_url']}/getLastWeatherData.php", data=str(sid),
                                 headers={'Content-Type': 'text/plain'}, timeout=10)
                data = r.json()
                if data:
                    d_list = data.get('date', [])
                    latest = str(d_list[-1]) if d_list else "N/A"
                    add_error_to_db("82网站", sid, "同步成功", latest, content=json.dumps(data, ensure_ascii=False))
            except:
                add_error_to_db("82网站", sid, "采集异常")
    except Exception as e:
        add_error_to_db("82网站", "初始化错误", str(e))


def background_task():
    global is_running
    with app.app_context():
        ErrorLog.query.delete()
        run_106_logic()
        run_82_logic()
        db.session.commit()
        is_running = False


@app.route('/api/run', methods=['POST'])
def start():
    global is_running
    if is_running: return jsonify({"status": "busy"}), 400
    is_running = True
    threading.Thread(target=background_task).start()
    return jsonify({"status": "started"})


@app.route('/api/status')
def status(): return jsonify({"is_running": is_running})


@app.route('/api/logs')
def logs():
    data = ErrorLog.query.all()
    return jsonify([{"source": l.source, "name": l.name, "reason": l.reason, "offset": l.offset,
                     "latest_time": l.latest_time, "check_time": l.check_time, "content": l.content} for l in data])


if __name__ == "__main__":
    app.run(debug=True, port=5000)