#!/usr/bin/env python 
# -*- coding:utf-8 -*-
"""
定义结果校验方法
Author: songjian at <songjian12@baidu.com>
Created: 2020/4/21
"""

import sys
import re
import logging
import os
import json

reload(sys)
sys.setdefaultencoding('utf-8')


def check_equal(check_data, golden):
    """
    完全匹配校验
    """
    logging.info('golden:%s, check_data:%s' % (golden, check_data))
    logging.info('check result:%s' % (check_data == golden))
    return check_data == golden


def check_re(check_data, golden):
    """
    正则匹配校验
    """
    regex = ''
    if '&' in golden:
        re_words = golden.split('&')
        for word in re_words:
            regex = regex + "(?=.*" + word + ")"
    else:
        regex = golden
    logging.info('regex:%s, check_data:%s' % (regex, check_data))
    logging.info('check result:%s' % (len(re.findall(regex, check_data)) != 0))
    return len(re.findall(regex, check_data)) != 0


def check_result(data, results):
    """
    校验入口
    """
    if 'check_type' not in data.keys():
        data['check_type'] = 'regular'
    if not data['check_type']:
        logging.error('校验类型为空')
        return False
    logging.info('校验类型:%s' % data['check_type'])
    if data['check_type'] == 'regular':
        return check(data, results)
    elif data['check_type'] == 'not_in':
        return not check(data, results)
    elif data['check_type'] == 'check_http':
        return check_http(results)
    else:
        logging.error('check type is not define')
        return False


def str_to_int(index):
    """
    字符串转数字
    """
    for ch in index:
        if ch < '0' or ch > '9':
            return index
    return int(index)


def find_key(data_list, reg):
    """
    在数组中寻找符合要求的键值
    """
    # reg = reg.strip('[').strip(']')
    reg = reg[1:-1]
    tree_node = reg.split('#')
    for data in data_list:
        key = []
        temp = data
        for node in tree_node:
            if ':' in node:
                key = node.split(':', 1)
            else:
                try:
                    temp = temp[str_to_int(node)]
                except Exception as e:
                    logging.info('该条结果缺少该字段:%s' % e)
                    break
        if len(key) != 2 or key[0] not in temp.keys():
            continue
        elif temp[key[0]] == str_to_int(key[1]):
            return data
    return {}


def get_prop(data, path):
    """
    获取指定字段
    :param data:
    :return:
    """
    try:
        temp = data
        tree_list = path.split('>')
        for item in tree_list:
            if '[' in item:
                temp = find_key(temp, item)
            else:
                temp = temp[str_to_int(item)]
        return temp, True
    except KeyError as e:
        logging.error('KeyError:%s' % e)
        return data, False
    except IndexError as e:
        logging.error('IndexError:%s' % e)
        return data, False


def check(data, results):
    """
    校验函数
    """
    lines = []
    if os.path.isfile(str(data['assert_words'])):
        with open(data['assert_words'], 'r') as f:
            lines = f.readlines()
            if len(lines) != len(results):
                logging.error('check file length not equal to result file')
                return False

    for i in range(len(results)):
        if 'path' not in data.keys():
            temp = (results[i][1], True)
        else:
            logging.info('校验路径:%s' % data['path'])
            temp = get_prop(results[i][1], data['path'])
        if not temp[1]:
            logging.error("获取指定参数失败")
            return False
        if isinstance(temp[0], int):
            parameter = str(temp[0])
        elif not isinstance(temp[0], dict) \
                and not isinstance(temp[0], list):
            parameter = temp[0]
        else:
            parameter = json.dumps(temp[0], ensure_ascii=False)

        if os.path.isfile(str(data['assert_words'])):
            if not check_re(parameter, lines[i].strip().decode('utf-8')):
                return False
        elif not check_re(parameter, data['assert_words']):
            return False
    return True


def check_http(results):
    """
    验证http 链接是否可达
    """
    if results[0][0] in [200, 304]:
        return True
    else:
        return False


if __name__ == "__main__":
    print check_result({"check_type": "regular", "assert_words": "error\": 0"}, [[200, {"error": 0}]])