import binascii
import json, datetime, base64
from django.shortcuts import HttpResponse
from django.middleware.csrf import get_token
from django.views.decorators.http import require_GET, require_POST
from apps.auth import models as auth_models
from django.contrib.auth.hashers import make_password, check_password


# Create your views here.
@require_GET
def get_token(request):
    """
    获取token
    :param request:
    :return:
    """
    token = get_token(request)
    return HttpResponse(json.dumps({'token': token}), content_type="application/json,charset=utf-8")


@require_POST
def search_user(request):
    """
    查询用户名
    :param request:
    :return:
    """
    username = request.POST.get('username')
    user = auth_models.User.objects.filter(username=username)
    if user.exists():
        return HttpResponse("用户名已存在")
    else:
        return HttpResponse(True)


@require_POST
def add_user(request):
    """
    用户注册
    :param request: POST提交注册信息
    :return: 注册结果
    """
    try:
        username = request.POST.get("username")
        pwd_base64 = base64.b64encode(request.POST.get("pwd"))
        pwd = make_password(pwd_base64)
        email = request.POST.get("email")
        phone = request.POST.get("phone")
        create_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        last_login_time = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
        print(username, pwd, email, phone)
        avatar = request.FILES.get("avatar")
        auth_models.User.objects.create(
            username=username,
            pwd=pwd,
            email=email,
            phone=phone,
            create_time=create_time,
            last_login_time=last_login_time,
            avatar=avatar
        )
        return HttpResponse("添加用户成功")
    except Exception as e:
        return HttpResponse(f"报错了：{e}")


@require_POST
def login_user(request):
    """
    用户登录，验证用户密码是否正确，正确返回菜单，错误返回用户名或密码不正确
    :param request:
    :return:
    """
    try:
        username = request.POST.get("username")
        pwd_input = base64.b64decode(request.POST.get("pwd"))
        pwd_made = auth_models.User.objects.filter(username=username).first().pwd
        pwd = check_password(pwd_input, pwd_made)
        if pwd:
            return HttpResponse(True)
        else:
            return HttpResponse("用户名或密码不正确")
    except binascii.Error as e:
        return HttpResponse("base64解码失败")
    except Exception as e:
        return HttpResponse(f"报错了:{e}")