import base64
import json
import os
import platform
from datetime import datetime


def return_work_dir():
    if platform.system() == 'Linux':
        work_path = os.path.expandvars('$HOME') + '/.config/'
        if not os.path.exists(work_path):
            os.mkdir(work_path)
        return os.path.expandvars('$HOME') + '/.config/PyQtToDoList/'
    elif platform.system() == 'Windows':
        work_path = os.getcwd() + '/../config/PyQtToDoList/'
        if not os.path.exists(work_path):
            os.mkdir(work_path)
        return work_path


def return_config_dir():
    if platform.system() == 'Linux':
        work_path = os.path.expandvars('$HOME') + '/.config/'
        if not os.path.exists(work_path):
            os.mkdir(work_path)
        return os.path.expandvars('$HOME') + '/.config/'
    elif platform.system() == 'Windows':
        work_path = os.getcwd() + '/../config/'
        if not os.path.exists(work_path):
            os.mkdir(work_path)
        return work_path


import configparser


def read_init_file():
    config = configparser.ConfigParser()
    try:
        config.read(return_work_dir() + 'PyQtToDoList.ini')
        account = config['Account']
        password = str(base64.b64decode(account['webdav_password']), 'utf-8')
        if account:
            return [account['webdav_hostname'], account['webdav_login'], password, account['type']]
    except KeyError as e:
        return False
    except UnicodeError as e:
        return False


def change_myday_important_conf(change_type, key, value):
    value = str(value)
    config = configparser.ConfigParser()
    config_path = return_work_dir()
    todo_file = config_path + 'PyQtToDoList.conf'
    if not os.path.exists(todo_file):
        # print(True)
        myday = {"Theme": "0"}
        important = {"Theme": "0"}
        config['MyDay'] = myday
        config['Important'] = important
        with open(todo_file, 'w') as f:
            config.write(f)

    config.read(todo_file)
    config[change_type][key] = value
    with open(todo_file, 'w') as f:
        config.write(f)


def get_myday_important_conf(get_type, key):
    config = configparser.ConfigParser()
    config_path = return_work_dir()
    try:
        todo_file = config_path + 'PyQtToDoList.conf'
        config.read(todo_file)
        return config[get_type][key]
    except KeyError as e:
        print('File Not Found!')
        return False


def get_todo_list():
    config_path = return_work_dir()
    todo_path = config_path + 'ToDoList/'
    return_todo_list = []
    for root, dirs, files in os.walk(todo_path, topdown=False):
        for name in files:
            # print(os.path.join(root, name))
            with open(os.path.join(root, name), 'r', encoding='utf-8') as f:
                # print(f.read())
                json_file = json.load(f)
                if json_file['itemType'] == 'ToDoList':
                    return_todo_list.append(
                        [json_file['title'], json_file['uid'], json_file['updatedAt'], json_file['icon']])

    return_todo_list.sort(key=get_third)
    return return_todo_list


def get_todo(todoListUid):
    config_path = return_work_dir()
    todo_path = config_path + 'ToDoList/'
    # print(todo_path)
    # config = configparser.ConfigParser()
    return_todo = []

    for root, dirs, files in os.walk(todo_path, topdown=False):
        for name in files:
            # print(os.path.join(root, name))
            with open(os.path.join(root, name), 'r', encoding='utf-8') as f:
                # print(f.read())
                json_file = json.load(f)

                # print(json_file['itemType'])
                if json_file['itemType'] == 'Todo' and not json_file['done'] and json_file[
                    'todoListUid'] == todoListUid:
                    # print(json_file['title'], json_file['uid'], '待办事项')
                    return_todo.append([json_file['title'], json_file['uid'], json_file['updatedAt']])
    return_todo.sort(key=get_third)
    return return_todo

    # load_list = get_todo_list()


def load_myday_important(item_type):
    config_path = return_work_dir()
    todo_path = config_path + 'ToDoList/'
    # print(todo_path)
    # config = configparser.ConfigParser()
    return_todo = []

    for root, dirs, files in os.walk(todo_path, topdown=False):
        for name in files:
            # print(os.path.join(root, name))
            with open(os.path.join(root, name), 'r', encoding='utf-8') as f:
                # print(f.read())
                json_file = json.load(f)

                # print(json_file['itemType'])
                if item_type == 'MyDay':
                    if json_file['itemType'] == 'Todo' and not json_file['done'] and json_file['isMyDay']:
                        # print(json_file['title'], json_file['uid'], '待办事项')
                        return_todo.append([json_file['title'], json_file['uid'], json_file['updatedAt']])
                        # return return_todo
                elif item_type == 'Important':
                    if json_file['itemType'] == 'Todo' and not json_file['done'] and json_file['isImportant']:
                        # print(json_file['title'], json_file['uid'], '待办事项')
                        return_todo.append([json_file['title'], json_file['uid'], json_file['updatedAt']])
    # print(return_todo)
    return_todo.sort(key=get_third)
    return return_todo


def get_third(elem):
    return elem[2]


# 用于修改某个键值对，比如更新修改时期，设置为重要，我的一天等
def change_value(uid, key, value):
    config_path = return_work_dir()
    todo_path = config_path + 'ToDoList/'

    json_file = {}
    current_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')

    with open(todo_path + '{' + uid + '}.otl', 'r') as f:
        json_file = json.load(f)

        json_file[key] = value
        json_file['updatedAt'] = current_time

    with open(todo_path + '{' + uid + '}.otl', 'w') as f:
        json.dump(json_file, f, indent=4, ensure_ascii=False)


def load_value(uid, key):
    config_path = return_work_dir()
    todo_path = config_path + 'ToDoList/'

    with open(todo_path + '{' + uid + '}.otl', 'r', encoding='utf-8') as f:
        json_file = json.load(f)

        return json_file[key]


def remove_todo_list(uid):
    config_path = return_work_dir()
    todo_path = config_path + 'ToDoList/'
    os.remove(todo_path + '{' + uid + '}.otl')
    for root, dirs, files in os.walk(todo_path, topdown=False):
        for name in files:
            with open(os.path.join(root, name), 'r') as f:
                json_file = json.load(f)

                if json_file['itemType'] == 'Todo' and json_file['todoListUid'] == uid:
                    os.remove(os.path.join(root, name))


def read_ini(section, key):
    config_path = return_work_dir()
    try:
        ini_path = config_path + 'PyQtToDoList.ini'
        config = configparser.ConfigParser()
        config.read(ini_path)
        return config[section][key]
    except Exception as e:
        print('<BasicUtils>', e)
        return False


def set_exit_status(status):
    config_path = return_work_dir()
    try:
        ini_path = config_path + 'PyQtToDoList.ini'
        config = configparser.ConfigParser()
        config.read(ini_path)
        config['System']['exitstatus'] = status
        # print(config['S'])
        with open(ini_path, 'w') as f:
            config.write(f)
            return True
    except Exception as e:
        print('<BasicUtils>', e)
        return False


# 判断是否登录
def check_login_status():
    try:
        # work_dir = return_work_dir()
        init_file_list = read_init_file()
        print(init_file_list)
        if init_file_list and 'None' not in init_file_list:
            return True
        else:
            return False
    except TypeError as e:
        return False


# print(read_init_file())
# webdav_hostname = read_init_file()
# print(webdav_hostname[2])
# change_value('4f52f02b-4450-405a-9fd1-2005a03006e0', 'isMyDay', False)
# print(get_todo('3f1e033f-2051-4c04-b7f6-afd2eb1f54f4'))
print(load_myday_important('Important'))
# change_myday_important_conf('Important', 'theme', 2)
# print(get_myday_important_conf('Important','Theme'))
# print(read_ini('System', 'exitstatus'))
# print(set_exit_status('Min'))
# print(check_login_status())