import streamlit as st

# 菜单
menu = {
    "牛排": 50,
    "鸡肉": 35,
    "虾仁": 40,
    "炒面": 20,
    "饺子": 15
}

# 页面标题
st.title("欢迎来到餐厅点餐小程序")

# 商家编辑菜单
if st.sidebar.checkbox("编辑菜单"):
    menu = {}
    st.write("请编辑菜单：")
    while True:
        dish_name = st.text_input("请输入菜名")
        if not dish_name:
            break
        price = st.number_input("请输入价格", min_value=0)
        if price == 0:
            break
        menu[dish_name] = price
    st.write("已更新菜单：")
    st.write(menu)

# 选择菜品，并提交订单
st.subheader("请选择您需要的菜品及数量")
order_dict = {}
for dish, price in menu.items():
    quantity = st.number_input(f"{dish}({price}元)", value=0, step=1)
    if quantity > 0:
        order_dict[dish] = {"price": price, "quantity": quantity}
if st.button("提交订单"):
    if order_dict:
        st.success("订单已提交")

        # 生成订单号
        order_id = "123456789"
        st.write(f"订单号：{order_id}")

        # 展示订单详情
        st.subheader("订单详情")
        total_price = 0
        for dish, values in order_dict.items():
            price = values["price"]
            quantity = values["quantity"]
            dish_total_price = price*quantity
            total_price += dish_total_price
            st.write(f"{dish} x {quantity}: {dish_total_price}元")
        st.write(f"总价：{total_price}元")

        # 支付
        payment_method = st.selectbox("请选择支付方式", ["微信支付", "支付宝支付", "银行卡支付"])
        if st.button("支付"):
            st.success("支付成功")
            st.write("请等待配送")

    else:
        st.warning("您还没有选择任何菜品")


# 商家查看订单
st.subheader("商家查看订单")
if st.button("查看订单"):
    st.write("订单详情")
    st.write(order_dict)


import streamlit as st

# 菜单
menu = {
    "牛排": 50,
    "鸡肉": 35,
    "虾仁": 40,
    "炒面": 20,
    "饺子": 15
}

# 页面标题
st.title("欢迎来到餐厅点餐小程序")

# 商家编辑菜单
if st.sidebar.checkbox("编辑菜单"):
    menu = {}
    st.write("请编辑菜单：")
    while True:
        dish_name = st.text_input("请输入菜名")
        if not dish_name:
            break
        price = st.number_input("请输入价格", min_value=0)
        if price == 0:
            break
        menu[dish_name] = price
    st.write("已更新菜单：")
    st.write(menu)

# 选择菜品，并提交订单
st.subheader("请选择您需要的菜品及数量")
order_dict = {}
for dish, price in menu.items():
    quantity = st.number_input(f"{dish}({price}元)", value=0, step=1)
    if quantity > 0:
        order_dict[dish] = {"price": price, "quantity": quantity}
if st.button("提交订单"):
    if order_dict:
        st.success("订单已提交")

        # 生成订单号
        order_id = "123456789"
        st.write(f"订单号：{order_id}")

        # 展示订单详情
        st.subheader("订单详情")
        total_price = 0
        for dish, values in order_dict.items():
            price = values["price"]
            quantity = values["quantity"]
            dish_total_price = price*quantity
            total_price += dish_total_price
            st.write(f"{dish} x {quantity}: {dish_total_price}元")
        st.write(f"总价：{total_price}元")

        # 支付
        payment_method = st.selectbox("请选择支付方式", ["微信支付", "支付宝支付", "银行卡支付"])
        if st.button("支付"):
            st.success("支付成功")
            st.write("请等待配送")

    else:
        st.warning("您还没有选择任何菜品")


# 商家查看订单
st.subheader("商家查看订单")
if st.button("查看订单"):
    st.write("订单详情")
    st.write(order_dict)