import random

msg = """**********欢迎使用XXX点餐系统************
1.点餐
2.订座

0.退出系统
****************************************************
"""

#菜品总列表
Dish_info = [
    {'编号': '1', '菜名': '西红柿炒蛋', '价格': '10', '分类': '炒菜'},
    {'编号': '2', '菜名': '扬州炒饭  ', '价格': '8', '分类': '主食'},
    {'编号': '3', '菜名': '煎饺      ', '价格': '13', '分类': '主食'},
    {'编号': '4', '菜名': '青椒肉丝  ', '价格': '18', '分类': '炒菜'}
]

#已点菜品列表
Order_Info = []

#打印菜品总列表
def Show_Dish_Msg():
    print('今日菜单已经上架！')
    print('编号\t\t菜名\t\t\t\t价格\t\t分类')
    for dish in Dish_info:
        print(
            dish['编号'] + '\t\t' +
            dish['菜名'] + '\t\t' +
            str(dish['价格']) + '\t\t' +
            dish['分类'] + '\t\t'
        )

#点菜
def Order_Menu():
    while True:
        order = input("请输入菜品编号点菜：")
        for dish in Dish_info:
            if order == dish['编号']:
                Order_Info.append(dish)
                Show_Order_Menu()
        out_or_continue = input("是否继续点菜？（是/否）")
        print('='*100)
        if out_or_continue == '是':
            continue
        elif out_or_continue == '否':
            break

#打印已点菜品列表
def Show_Order_Menu():
    print('已点菜：')
    print('编号\t\t菜名\t\t\t\t价格\t\t分类')
    for show_order in Order_Info:
        print(
            show_order['编号'] + '\t\t' +
            show_order['菜名'] + '\t\t' +
            str(show_order['价格']) + '\t\t' +
            show_order['分类'] + '\t\t'
        )
    print('='*100)

#删除已点菜品
def Del_Order_Menu():
    Show_Order_Menu()
    del_order_menu = input("请输入您想移除的菜品编号：")
    for del_order in Order_Info:
        if del_order_menu == del_order['编号']:
            Order_Info.remove(del_order)
            print("已移除！")
            Show_Order_Menu()
            break

#查找菜品
def Dish_Find():
    print('查找菜品')
    print('请选择以下方式：\n1.根据菜名查找\n2.根据分类查找（例如：炒菜/主食）')
    method_of_find = input("请输入您想要的查询方式：")
    if method_of_find == '1':
        dish_name = input("请输入您想查询的菜名：")
        print('编号\t\t菜名\t\t\t\t价格\t\t分类')
        for dish_info in Dish_info:
            if dish_name == dish_info['菜名']:
                print(
                    dish_info['编号'] + '\t\t' +
                    dish_info['菜名'] + '\t\t' +
                    str(dish_info['价格']) + '\t\t' +
                    dish_info['分类'] + '\t\t'
                )
                break
            else:
                print("查无此菜品！请尽请期待！")
    elif method_of_find == '2':
        dish_classify = input("请输入您想查询的分类：")
        print('编号\t\t菜名\t\t\t\t价格\t\t分类')
        for dish_info in Dish_info:
            if dish_classify == dish_info['分类']:
                print(
                    dish_info['编号'] + '\t\t' +
                    dish_info['菜名'] + '\t\t' +
                    str(dish_info['价格']) + '\t\t' +
                    dish_info['分类'] + '\t\t'
                )
    else:
        print("无效操作！")

#结算
def Final_Statement():
    total_price = 0
    for price_order in Order_Info:
        total_price += int(price_order['价格'])
    print(f"                         小计{total_price}元")
    Order_Info.clear()


#订座
def Reserve_Seat():
    human_num = int(input("请问您有几位？"))
    seat = random.randint(5, 13)
    if human_num > seat:
        print("对不起，座位不够！具体情况请询问客服！")
    else:
        print("有座位！")


#退出
def Exit():
    Show_Order_Menu()
    print("下次再见！")

#点餐系统
def System_Of_Order():
    msg_order = """
    ******************请点餐*******************
    1.添加菜品
    2.显示已点菜品列表
    3.删除菜品
    4.查找菜品
    
    0.返回并结算
    *******************************************
    """
    while True:
        print(msg_order)
        operation = input("请输入您想进行的操作：")
        if operation == '1':
            Order_Menu()
        elif operation == '2':
            Show_Order_Menu()
        elif operation == '3':
            Del_Order_Menu()
        elif operation == '4':
            Dish_Find()
        elif operation == '0':
            Final_Statement()
            break
        else:
            print("无效操作！")



if __name__ == '__main__':
    while True:
        Show_Dish_Msg()
        print(msg)
        hello = input("请输入您想进行的操作：")
        if hello == '1':
            System_Of_Order()
        elif hello == '2':
            Reserve_Seat()
        elif hello == '0':
            Exit()
            break
        else:
            print("无效操作！")