import time
import traceback

from flask import request
from werkzeug.exceptions import BadRequest

from DBHelper.MongoHelper import MongoHelper


def get_req_detail(req, param_type):
    """
    获取请求参数信息
    若异常请求则返回空字符串
    """
    try:
        if param_type == 'args':
            return req.args.__str__()
        elif param_type == 'json':
            return req.json.__str__()
        else:
            return ''
    except BadRequest:
        return ''


class JustThrowError(RuntimeError):
    """自定义抛出异常信息"""

    def __init__(self, error_info):
        self.error_info = error_info

    def __str__(self):
        return self.error_info


class APIReturnError(RuntimeError):
    """接口返回异常信息"""
    def __init__(self, error_info, status_code):
        self.error_info = error_info  # 异常信息
        self.status_code = status_code  # 状态码

    def __str__(self):
        return self.error_info


class AttrCheckError(RuntimeError):
    """属性检查异常"""

    def __init__(self, error_info):
        self.error_info = error_info

    def __str__(self):
        return self.error_info


class CheckFailed(RuntimeError):
    """检查异常"""

    def __init__(self, failed_info, status_code):
        self.failed_info = failed_info  # 失败信息
        self.status_code = status_code  # 状态码

    def __str__(self):
        return self.failed_info

    def log_error(self):
        db = MongoHelper("tfse_v0.21")

        info = {
            "ip": request.remote_addr,
            "request_info": {
                "path": request.path,
                "method": request.method,
                "headers": request.headers.__str__(),
                "args": get_req_detail(request, 'args'),
                "json": get_req_detail(request, 'json')
            },
            "traceback": traceback.format_exc(),
            "exception": type(self).__name__,
            "is_solved": "no",
            "time": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        }

        db.insert_single_data(
            "日志",
            "异常日志",
            info
        )


class LogConditionCheckFailed(CheckFailed):
    """直接记录检查异常"""

    def __init__(self, failed_info, status_code):
        self.failed_info = failed_info  # 失败信息
        self.status_code = status_code  # 状态码
        self.log_error()


class ReturnConditionCheckFailed(CheckFailed):
    """条件检查失败 抛出异常 接口返回失败原因和状态码"""