from ..public.db import updateLastUpdate, insertUser, findUser, userDeleteAllCrouse, userInsertAllCrouse, findUserCrouse, findGroupCrouse
from ..public.utils import checkData, signCode, findGroup
from ..public.crawler import Crawler
import json
import time


def check(request):
    """
    校验数据
    目标内容 cid,pwd,phone
    """
    try:
        data = request.json
        if not checkData(data):
            raise Exception
        if not data.__contains__('cid'):
            raise Exception
        if not data.__contains__('pwd'):
            raise Exception
        return data, 200
    except Exception as e:
        print(e)
        return '数据不合法', 400


def manageLogin(request):
    """
    用户登录
    """
    # 校验数据
    check_res = check(request)
    # 抛出错误
    if check_res[-1] != 200:
        return check_res
    data = check_res[0]
    # 查找用户
    find_res = findUser(data['cid'])
    # 抛出错误
    if find_res[-1] != 200:
        return find_res[0], 510
    user_info = find_res[0]
    # 无用户进行注册
    if not user_info:
        return sign(data['cid'], data['pwd'])
    # 存在用户进行登录
    return login(data, user_info)


def manageFindGroup(group_list):
    """
    根据组id查询组信息
    """
    list = []
    for group_id in group_list:
        find_res = findGroup(group_id)
        if find_res[-1] != 200:
            return find_res[0], 512
        list.append(find_res[0])
    return list, 200


def manageCrawler(cid, pwd, phone):
    """
    处理爬虫，返回课表和成绩
    """
    try:
        c = Crawler()
        init_res = c.defaultInit(cid, pwd, phone)
        if init_res[-1] != 200:
            return init_res
        get_res = c.getOwnSchedule()
        if get_res[-1] != 200:
            return get_res
        schedule = get_res[0]
        get_res = c.getGrade()
        if get_res[-1] != 200:
            return get_res
        grade = get_res[0]
        return {
            'user_info': init_res[0],
            'grade': grade,
            'schedule': schedule,
        }, 200
    except Exception as e:
        print(e)
        return '教务挂了', 515


def manageNewCrouse(sid, schedule):
    """
    向数据库中插入新的课程信息
    """
    # 先删除所有课程
    del_res = userDeleteAllCrouse(sid)
    if del_res[-1] != 200:
        return '用户所有课程数据库删除失败', 516
    # 添加所有课程
    ins_res = userInsertAllCrouse(schedule)
    if ins_res[-1] != 200:
        return '用户所有课程数据库插入失败', 517
    # 更新数据库时间
    now = time.time()
    updateLastUpdate(sid, now)
    return 'OK', 200


def getAllUserCrouse(group_id_list, sid):
    """
    查找用户所有的课程，包括组课程以及个人课程
    """
    find_res = findUserCrouse(sid)
    if find_res[-1] != 200:
        return '用户课程数据库查询失败', 518
    user_crouse = find_res[0]
    group_crouse = {}
    for group_id in group_id_list:
        find_res = findGroupCrouse(group_id)
        if find_res[-1] != 200:
            return '用户组课程数据库查询失败', 519
        group_crouse[group_id] = find_res[0]
    return {
        'group_crouse': group_crouse,
        'user_crouse': user_crouse
    }, 200


def manageSign(cid, pwd, phone):
    """
    用户注册
    """
    # 课表信息以及成绩信息
    crawler_res = manageCrawler(
        user_info['cid'], user_info['pwd'], user_info.get('phone'))
    if crawler_res[-1] != 200:
        return crawler_res

    schedule = crawler_res[0]['schedule']
    grade = crawler_res[0]['grade']
    user_info = crawler_res[0]['user_info']
    user_info['pwd'] = signCode(pwd)
    user_info['invite_list'] = []
    user_info['setting'] = {
        'bg': ''
    }
    user_info['avatar'] = 'default'
    user_info['last_update'] = time.time()
    # 插入用户
    ins_res = insertUser(user_info)

    user_info.pop('_id')
    user_info.pop('pwd')
    user_info['group_list'] = []

    # 更新新的课程信息
    ins_res = manageNewCrouse(user_info['sid'], schedule)
    if ins_res[-1] != 200:
        return ins_res

    # 获取用户所有的课程信息
    find_res = getAllUserCrouse(group_id_list, user_info['sid'])
    if find_res[-1] != 200:
        return find_res

    schedule = find_res[0]

    return {
        'user_info': user_info,
        'schedule': schedule,
        'grade': grade,
    }, 200


def login(data, user_info):
    """
    处理登录操作
    """
    # 校验密码
    if user_info['pwd'] != signCode(data['pwd']):
        return '账号或密码错误', 511
    # 接下来需要返回组信息，课表信息以及成绩信息

    # 组信息
    group_id_list = user_info['group_list']
    find_res = manageFindGroup(group_id_list)
    if find_res[-1] != 200:
        return find_res
    user_info['group_list'] = find_res[0]

    # 课表信息以及成绩信息
    crawler_res = manageCrawler(
        user_info['cid'], user_info['pwd'], user_info.get('phone'))
    if crawler_res[-1] != 200:
        return crawler_res

    schedule = crawler_res[0]['schedule']
    grade = crawler_res[0]['grade']

    # 更新新的课程信息
    ins_res = manageNewCrouse(user_info['sid'], schedule)
    if ins_res[-1] != 200:
        return ins_res

    # 获取用户所有的课程信息
    find_res = getAllUserCrouse(group_id_list, user_info['sid'])
    if find_res[-1] != 200:
        return find_res

    schedule = find_res[0]

    user_info.pop('pwd')

    return {
        'user_info': user_info,
        'schedule': schedule,
        'grade': grade,
    }, 200