from hashlib import md5
from os import listdir
import pickle
import sys
import random
import time


class Base:
    def __init__(self):
        self.create_time = time.localtime()
        self.str_time = time.strftime("%Y%m%d%H%M%S", self.create_time)
        self.__gene_id()

    def __gene_id(self):
        self.__id_seed: str = self.str_time + str(random.randint(10000, 99999))
        self.id: str = md5(self.__id_seed.encode("UTF-8")).hexdigest()


class Entry(Base):
    def __init__(self, title: str = "未命名事项"):
        Base.__init__(self)

        if title == "未命名事项":
            self.title: str = title + self.str_time[4:8]
        else:
            self.title: str = title

        self.content: str = "在这里输入事项内容"
        self.set_priority()
        self.set_deadline()

        self.sub_entries_dict: dict = {}

    def set_priority(self, priority: float = 0):
        if priority < -10:
            print("最低优先级为-10，已自动设置为-10")
            priority = -10.0
        elif priority > 10:
            print("最高优先级为10，已自动设置为10")
            priority = 10.0
        self.priority: float = priority

    def set_deadline(self, deadline_date: time.struct_time = time.localtime(time.time()+time.mktime(time.strptime("7", "%d")))):
        if deadline_date < time.localtime():
            print("\033[1;31mERROR: Let it RIP if it's dead already\033[0m")
            return 1
        self.deadline = deadline_date
        return 0

    def set_content(self, content: str):
        self.content = content


class Coordinate(Base):
    def __init__(self):
        Base.__init__(self)
        self.name = "未命名坐标系" + self.str_time
        # Base.__gene_id(self)
        self.entries_dict = {}
        self.entries_num = 0

    def show_entries(self):
        print(self.entries_dict)

    def add_entry(self, entry_in: Entry):
        self.entries_dict[entry_in.entry_id] = entry_in
        self.entries_num += 1

    def del_entry(self, entry_in: Entry):
        try:
            del self.entries_dict[entry_in.entry_id]
            self.entries_num -= 1
        except KeyError:
            print("\033[1;31mERROR: Entry doesn't exist\033[0m")

    def save_coord(self):
        with open("coord/" + self.name + ".crd", "wb") as f:
            pickle.dump(self, f, pickle.HIGHEST_PROTOCOL)

    def __str__(self) -> str:
        return (
            "Title: "
            + self.name
            + "\nId: "
            + self.id
            + "\nEntries number: "
            + str(self.entries_num)
        )


class Interface:
    def __init__(self):
        self.coordinate_dict: dict = {}
        self.exit: bool = False
        self.func_dict = {
            "exit": self.__exit,
            "open": self.__open_coord,
            "ls": self.__list_coord,
            "show": self.__show_now_coord,
            "entry": self.__new_entry,
            "chcrd": self.__coord_changer,
        }

    def start(self):
        print(
            "*******************************\n*Welcome to Jt mission manager*\n*******************************\n"
        )
        self.__coord_changer([])
        while not (self.exit):
            command = input("\033[1;32m> \033[0m").split()
            try:
                func_name = command[0]
                try:
                    func = self.func_dict[func_name]
                    func(command[1:])
                except KeyError:
                    print("\033[1;31mERROR: Command not found\033[0m")
            except IndexError:
                pass

    def __open_coord(self, coord_file: str):
        with open(coord_file, "rb") as f:
            self.now_coord: Coordinate = pickle.load(f)

    def __list_coord(self):
        self.files = listdir("coord")
        if self.files:
            i = 0
            for f in self.files:
                print(i, f)
                i += 1

    def __save_now_coord(self):
        save_or_not: str = input("Save the opened coordinate? Y/n")
        if save_or_not in ["Y", "y", "1"]:
            self.now_coord.save_coord()
            return 0
        elif save_or_not in ["N", "n", "0"]:
            return 0
        else:
            self.__save_now_coord()

    def __coord_changer(self, arg: list):
        try:
            self.now_coord
            self.__save_now_coord()
        except AttributeError:
            pass
        print("Select a coordinate to open:")
        self.__list_coord()
        coord_file = self.files[
            int(input("\033[1;32mType in the coordinate number:\033[0m"))
        ]
        self.__open_coord("coord/" + coord_file)

    def __new_entry(self, arg: list):
        e = Entry(arg[0])
        e.content = sys.stdin.readlines()

    def __new_coord(self, arg: list):
        c = Coordinate()
        c.name = arg[0]
        raise NotImplementedError

    def __show_now_coord(self, arg: list):
        print(self.now_coord)

    def __add_coordinate(self, c: Coordinate):
        if not c.id in self.coordinate_dict:
            self.coordinate_dict[c.id] = c
        else:
            print("\033[1;31mERROR: It's already in there\033[0m")

    def __exit(self, arg):
        self.exit = True


def main():
    i = Interface()
    i.start()


if __name__ == "__main__":
    main()