import re
import time
import json
import requests
from werkzeug.security import check_password_hash, generate_password_hash

from common.auth import create_token
from common.text_recognition import id_card_recognition, business_license_recognition
from user.db import find_verify_record, find_user_info, update_verify_record, update_user_info_by_cid, insert_user_info, \
    clean_verify_code, find_file, insert_file, delete_file
from common.rsa import decrypt_data
from common.scripts import make_id, make_verify_code, file_path, read_json_file

# 邮箱服务接口
EMAIL_API = 'http://116.63.130.34:30001'


def send_email(email, code, v_type):
    """
    发送验证码到邮箱
    Parameters:
        email: 邮箱
        code: 验证码
        v_type: 验证类型
    Returns:
        邮件发送结果
    """
    types = {
        "register": "注册账号",
        "resetpwd": "修改密码",
        "resetemail": "修改邮箱"
    }

    headers = {"Content-Type": "application/json;charset=UTF-8"}
    data = {"title": "【远东资信】{}".format(types[v_type]),
            "sender": 'fecribd@fecr.com.cn',
            "recipients": [email],
            "msg_body": "您{}的验证码为 【{}】，5分钟内有效。".format(types[v_type], code)}
    response = requests.post(url=EMAIL_API + '/send_mail', headers=headers, data=json.dumps(data))
    return response.text


def send_feedback_email(content):
    """
    发送反馈邮件
    Args:
        content: 反馈内容
    Returns:
        info: 发送信息
    """
    recipients = ["wangsichuan@fecr.com.cn"]
    headers = {"Content-Type": "application/json;charset=UTF-8"}
    data = {"title": '股交反馈邮件',
            "sender": 'fecribd@fecr.com.cn',
            "recipients": recipients,
            "msg_body": content}
    response = requests.post(url=EMAIL_API + '/send_mail', headers=headers, data=json.dumps(data))
    return response.text


def check_mail_fmt(email):
    """
    邮箱地址格式校验
    Parameters:
        email: 邮箱
    Returns:
        result: 邮箱校验结果，正确返回True，不正确返回False
    """
    regex = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"
    case = (len(email) > 7) and (re.match(regex, email) is not None)
    result = True if case else False
    return result


def check_pwd_fmt(pwd):
    """
    密码强度校验
    Parameters:
        pwd: 密码（已加密）
    Returns:
        result: 密码强度校验结果，正确返回True，不正确返回False
    """

    try:
        password = decrypt_data(encrypt_msg=pwd)
    except Exception:
        return False

    regex = "^(?![A-Za-z0-9]+$)(?![a-z0-9\\W]+$)(?![A-Za-z\\W]+$)(?![A-Z0-9\\W]+$)^.{8,}$"
    case = (len(password) >= 8) and (re.match(regex, password) is not None)
    result = True if case else False
    return result


def check_registered(email):
    """
    检查邮箱是否被注册
    Parameters:
        email: 邮箱
    Returns:
        邮箱未被注册 False
        邮箱已被注册 True
    """
    return False if find_user_info({"邮箱": email}) == [] else True


def check_verified(cid):
    """
    检查企业是否已认证
    Parameters:
        cid:
    Returns:
        已认证 True
        未认证 False
    """
    return True if find_user_info({"企业ID": cid})[0]['已认证'] == "是" else False


def check_verify_code(email, code):
    """
    验证码是否正确
    Parameters:
        email: 邮箱
        code: 验证码
    Returns:
        没有邮箱记录 False
        验证码不正确 False
        验证码过期 False
        验证码正确 True
    """
    record = find_verify_record({"邮箱": email})
    if len(record) == 0:
        return '验证码错误'
    if record[0]['验证码'] != code:
        return '验证码错误'
    if time.time()-record[0]['验证有效期'] > 300:
        return '验证码过期'
    return True


def gen_new_cid():
    """
    生成新的企业ID，如果该ID存在，则重新生成
    Parameters:
        -
    Returns:
        new_id: 生成的企业ID
    """
    # 生成新ID
    new_id = make_id()
    # 检查新ID是否存在，如果存在则继续生成新ID
    case = find_user_info({"企业ID": new_id}) is []
    while case:
        new_id = make_id()
    # 新ID可使用，返回新ID
    return new_id


def gen_new_user(email, pwd):
    """
    生成新用户
    Parameters:
        email: 邮箱
        pwd: 密码
    Returns:
        user: 新用户信息
    """
    user = read_json_file(file_path('/user/static/template/user.json'))
    user['企业ID'] = gen_new_cid()
    user['邮箱'] = email
    user['头像fid'] = "61a15b33e55c00003e0048e4"
    user['密码'] = generate_password_hash(decrypt_data(encrypt_msg=pwd))
    user['注册时间'] = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
    user['已认证'] = '否'

    # 插入新用户数据
    insert_user_info(user)

    # 清除验证码和时间戳
    clean_verify_code(email)


def gen_verify_code(email):
    """
    生成邮箱验证码
    Parameters:
        email: 邮箱
    Returns:
        code: 验证码
    """
    code = make_verify_code()
    timestamp = time.time() + 300
    update_verify_record(email, {"验证码": code, "验证有效期": timestamp})
    return code


def check_pwd(email, pwd):
    """
    检查用户登录密码
    Parameters:
        email: 邮箱
        pwd: 密码
    Returns:
        通过校验 True
        未通过校验 False
    """
    record = find_user_info({"邮箱": email})
    if not record:
        return False

    try:
        if not check_password_hash(record[0]['密码'], decrypt_data(encrypt_msg=pwd)):
            return False
    except Exception:
        return False

    result = dict()
    result['企业名称'] = record[0]['企业名称']
    result['邮箱'] = record[0]['邮箱']
    result['已认证'] = record[0]['已认证']
    result['token'] = create_token({"cid": record[0]['企业ID']})
    return result


def reset_pwd(email, pwd):
    """
    修改密码
    Args:
        email: 邮箱
        pwd: 新密码
    Returns:
        -
    """
    record = find_user_info({"邮箱": email})
    cid = record[0]['企业ID']
    update_user_info_by_cid(cid, {"密码": generate_password_hash(decrypt_data(encrypt_msg=pwd))})
    clean_verify_code(email)


def reset_email(cid, email):
    """
    更换邮箱
    Args:
        cid: 企业ID
        email: 邮箱
    Returns:
        -
    """
    update_user_info_by_cid(cid, {"邮箱": email})
    clean_verify_code(email)


def avatar_by_cid(cid):
    """
    根据企业ID获取用户头像
    Args:
        cid:
    Returns:
        filestream
    """
    fid = find_user_info({"企业ID": cid})[0]['头像fid']
    filestream = find_file('头像', fid)
    return filestream


def refresh_user_info(cid):
    """
    根据cid查看、刷新用户信息
    Args:
        cid: 企业ID
    Returns:
        result: 用户基本信息
    """
    record = find_user_info({"企业ID": cid})
    result = dict()
    result['企业名称'] = record[0]['企业名称']
    result['邮箱'] = record[0]['邮箱']
    result['已认证'] = record[0]['已认证']
    return result


def id_card_recognition_result(cid, image):
    """
    身份证文本识别
    Args:
        cid: 企业ID
        image: 图片
    Returns:

    """
    if check_verified(cid):
        return "已认证不能上传"

    # 身份证正面文本识别
    result = id_card_recognition(side='face', image=image)

    # 重置image读取位置，不然下一步读不出图片
    image.seek(0)

    # 图片识别错误
    if result == '识别错误':
        return result
    if result == '伪造身份证':
        return result
    else:
        # 图片识别正确，保存身份证图片
        new_file_id = insert_file('身份证', image.read(), image.content_type, result['姓名'])
        # 删除原身份证图片
        old_file_id = find_user_info({"企业ID": cid})[0]['认证信息']['身份证fid']
        if old_file_id is not None:
            delete_file('身份证', old_file_id)
        # 更新企业认证中身份证的信息
        update_user_info_by_cid(cid, {"认证信息.法人姓名": result['姓名'],
                                      "认证信息.法人身份证": result['身份证号码'],
                                      "认证信息.身份证fid": new_file_id})

        return '识别正确', {"姓名": result['姓名'], "身份证号码": result['身份证号码']}


def business_license_recognition_result(cid, image):
    """
    营业执照识别结果
    Parameters:
        cid: 企业ID
        image: 图片
    Returns:
        info 识别结果
        result 识别信息
    """
    if check_verified(cid):
        return "已认证不能上传"

    # 识别营业执照
    result = business_license_recognition(image=image)

    # 重置image读取位置，不然下一步读不出图片
    image.seek(0)

    # 图片识别错误
    if result == '识别错误':
        return result
    else:
        # 图片识别正确，保存图片
        new_file_id = insert_file('营业执照', image.read(), image.content_type, result['名称'])
        # 删除原图片
        old_file_id = find_user_info({"企业ID": cid})[0]['认证信息']['营业执照fid']
        if old_file_id is not None:
            delete_file('营业执照', old_file_id)
        # 更新企业认证中营业执照的信息
        update_user_info_by_cid(cid, {"认证信息.企业名称": result['名称'],
                                      "认证信息.统一社会信用代码": result['统一社会信用代码'],
                                      "认证信息.营业执照fid": new_file_id})

        return '识别正确', {"公司名称": result['名称'], "统一社会信用代码": result['统一社会信用代码']}


def tyc_company_verify(cid):
    """
    天眼查企业认证三要素
    Parameters:
        code 统一社会信用代码
        name 企业名称
        legal_person 法人姓名
    Returns:
        通过 True
        未通过 False
    """
    # 根据cid获取企业上传的认证信息
    v_info = find_user_info({"企业ID": cid})[0]['认证信息']
    code = v_info['统一社会信用代码']
    name = v_info['企业名称']
    legal_person = v_info['法人姓名']
    # 认证信息有缺失
    if None in [code, name, legal_person]:
        return '认证信息不完整'

    # 调用天眼查企业三要素验证接口
    token = "5407573b-e41e-4ab4-9f46-daa0032ad0a4"
    base = "http://open.api.tianyancha.com/services/open/ic/verify/2.0?code={}&name={}&legalPersonName={}"
    url = base.format(code, name, legal_person)
    headers = {'Authorization': token}
    res = json.loads(requests.get(url, headers=headers).text)
    try:
        if res['result']['result'] == 1:
            # 初始化企业数据
            init_url = "http://139.9.249.34:51011/etl_tfse/company/init_company_data"
            init_token = "dmfd7FshT!5Wng9^gcCcQV7T6FBnVgl4"
            init_headers = {'token': init_token}
            data = json.dumps({"cid": cid, "company_name": name})
            requests.post(init_url, headers=init_headers, data=data)
            # 更新用户认证状态
            update_user_info_by_cid(cid, {"企业名称": name, "已认证": "是"})

            return '认证成功'
        else:
            return '认证失败'
    except Exception:
        return '认证失败'


def choose_avatar(cid, avatar_id):
    """
    选择头像
    Args:
        cid: 企业ID
        avatar_id: 头像文件ID
    Returns:
        -
    """
    avatars = {
        "avatar_01": "61a15b33e55c00003e0048e4",
        "avatar_02": "61a657081b4700006a004765",
        "avatar_03": "61a657081b4700006a004767",
        "avatar_04": "61a657081b4700006a004766",
        "avatar_05": "61a657091b4700006a004768",
        "avatar_06": "61a657091b4700006a004769"
    }

    if avatar_id not in avatars.keys():
        pass

    file_id = avatars[avatar_id]
    update_user_info_by_cid(cid, {"头像fid": file_id})