import sys
import os.path
from logging.config import dictConfig

from flask import Flask
from flask.logging import default_handler
from flask_cors import CORS

sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'src'))
from database.mongodb import initialize_db
from database.redis import initialize_redis
from api.routes import blueprint_api
from settings.dev import LOGGING
from settings.common import INSTANCE, VERSION
from common.utils import make_response


# 日志配置
dictConfig(LOGGING)

# app 实例，移除默认日志，加载配置文件
app = Flask(__name__)
app.logger.removeHandler(default_handler)
app.config.from_pyfile("settings/dev.py")

# 允许跨域
CORS(app)

# 初始化数据库连接
initialize_db(app)
initialize_redis(app)

# 注册蓝图
app.register_blueprint(blueprint_api)


@app.after_request
def mark_global_header(resp):
    """全局 header """
    # 标记当前提供服务的实例
    resp.headers["Instance"] = INSTANCE
    return resp


@app.route('/info')
def app_info():
    """返回实例信息，实例版本、实例ID"""
    return make_response(200, 1000, "success", version=VERSION, instance=INSTANCE)


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5001, debug=True)