# 從 random 引入 shuffle
from random import shuffle

# 猜數字遊戲
class Guess:
    # 建構子
    def __init__(self, length):
        self.length = length
        self.set_answer()

    # 字串形式
    def __str__(self):
        return str(self.answer)

    # 建立答案
    def set_answer(self):
        # 建立數字串列
        numbers = list("0123456789")
        # 利用迴圈讓答案的第一個數字不為 0
        while numbers[0] == "0":
            # 攪亂數字串列
            shuffle(numbers)
            # 猜數字遊戲答案的屬性
            self.answer = ""
            i = 0
            for c in numbers:
                self.answer += c
                i += 1
                if i == self.length:
                    break

    # 測試輸入是否有重複數字
    def repeat_test(self, guess):
        # 將輸入轉換成集合
        guess_set = set(guess)
        # 檢測重複數字
        if len(guess_set) == self.length:
            return True
        else:
            return False

    # 計算 A 、 B 值
    def find_AB(self, guess):
        # 將答案轉換成集合
        answer_set = set(self.answer)
        # 回傳 A 、 B 值
        if guess == self.answer:
            return str(self.length) + "A"
        else:
            i = A = B = 0
            while i < self.length:
                if guess[i] == self.answer[i]:
                    A += 1
                else:
                    if guess[i] in answer_set:
                        B += 1
                i += 1
            return str(A) + "A" + str(B) + "B"

# 執行部分
if __name__ == '__main__':
    # 建立遊戲答案
    g = Guess(6)
    # 印出猜數字遊戲的答案
    print(g.answer)
    # 檢測是否有重複數字
    print(g.repeat_test("123456"))
    # 檢測 A 、 B 值
    print(g.find_AB("123456"))

# 檔名: exercise2705.py
# 說明:《Python入門指南》的練習
# 網站: http://kaiching.org
# 作者: 張凱慶
# 時間: 2023 年 11 月