'''
    Mooc 人机交互的接口函数
'''

import os
import re
if __package__ is None:
    import sys
    sys.path.append('.\\')
    sys.path.append("..\\")
from Mooc.Mooc_Config import *
from Mooc.Mooc_Request import *
from Mooc.Mooc_Download import *
from Mooc.Icourse163.Icourse163_Mooc import *
from Mooc.Icourses.Icourse_Cuoc import *
from Mooc.Icourses.Icourse_Mooc import *

__all__ = [
    "mooc_interface"
]

# 课程名对应的Mooc类
courses_mooc = {
    "icourse163_mooc": Icourse163_Mooc,
    "icourse_cuoc": Icourse_Cuoc, 
    "icourse_mooc": Icourse_Mooc
}

def mooc_interface():
    try:
        while True:
            os.system("cls")
            print("\t"+"="*91)
            print('\t|\t\t      慕课下载器(免费版v3.4.2)      \tQQ群: {:^27s} |'.format(__QQgroup__))
            print("\t|\t\t    icourse163.org, icourses.cn    \t邮箱: {:^27s} |".format(__email__))
            print("\t"+"="*91)
            print("\t{:^90}".format("Github: https://github.com/PyJun/Mooc_Downloader"))
            print("\t{:^90}".format("博客: https://blog.csdn.net/qq_16166591/article/details/85249743"))
            print("\t{:^90}".format("下载路径: "+PATH))
            urlstr = None
            while not urlstr:
                try:
                    urlstr = input('\n输入一个视频课程网址(q退出): ')
                except KeyboardInterrupt:
                    print()
            if urlstr == 'q':
                break
            mooc = match_mooc(urlstr)
            if not mooc:
                input("视频课程链接不合法，请回车继续...")
                continue
            if not mooc.set_mode():
                continue
            print("正在连接资源......")
            try:
                mooc.prepare(urlstr)
            except RequestFailed:
                print("网路请求异常！")
                input("请按回车键返回主界面...")
                continue
            while True:
                try:
                    isdownload = mooc.download()
                    if isdownload:
                        print('"{}" 下载完毕!'.format(mooc.title))
                        print("下载路径: {}".format(mooc.rootDir))
                        os.startfile(mooc.rootDir)
                    else:
                        print('"{}" 还未开课！'.format(mooc.title))
                    input("请按回车键返回主界面...")
                    break
                except (RequestFailed, DownloadFailed) as err:
                    if isinstance(err, RequestFailed):
                        print("网路请求异常！")
                    else:
                        print("文件下载异常！")
                    if inquire():
                        continue
                    else:
                        break
                except KeyboardInterrupt:
                    print()
                    if inquire():
                        continue
                    else:
                        break
                except:
                    print("程序异常退出，希望反馈作者！")
                    return
    except KeyboardInterrupt:
        input("程序退出...")
    finally:
        # if (input("\n小哥哥，小姐姐，打个赏再走呗 …(⊙_⊙)… [y/n]: ") != 'n'):
        #     os.startfile(alipay_path)
        os.system("pause")

def inquire():
    redown = None
    while redown not in ('y','n'):
        try: 
            redown = input("是否继续[y/n]: ")
        except (KeyboardInterrupt, EOFError):
            print()
    return redown=='y'

def match_mooc(url):
    mooc = None
    for mooc_name in courses_mooc:
        if courses_re.get(mooc_name).match(url):
            mooc = courses_mooc.get(mooc_name)()
            break
    return mooc

def main():
    mooc_interface()

if __name__ == '__main__':
    main()