Create app.py

app.py

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+import gradio as gr
+
+order = []
+prices = {
+    "salad": 100, "chips & salsa": 150, "soup": 100, "thai chicken satay": 200,
+    "tandoori lobster bites": 250, "panipuri shooters": 80, "veg fried fritters": 80,
+    "pasta": 200, "burger": 120, "pizza": 170, "butter chicken with naan": 220,
+    "thai green curry": 240, "mashed potato": 100, "mango lassi": 70, "water": 0,
+    "iced tea": 40, "masala chai": 20, "sprite": 20, "pepsi": 20, "cold coffee": 40,
+    "choco lava cake": 100, "ice cream": 50, "kulfi with saffron and pistachio": 80,
+    "tiramisu": 120, "gulab jamun": 50, "cheesecake": 150, "cheese": 50
+}
+
+def add_to_order(category, item, extras):
+    item_cost = prices[item]
+    if "cheese" in extras:
+        item_cost += prices["cheese"]
+    order.append((item.capitalize(), item_cost))
+    return order_summary()
+
+def order_summary():
+    summary = "YOUR ORDER:\n"
+    total_cost = sum(cost for _, cost in order)
+    for item, cost in order:
+        summary += f"{item}: ₹{cost}\n"
+    summary += f"Total cost: ₹{total_cost}"
+    return summary
+
+appetizers = ["salad", "chips & salsa", "soup", "thai chicken satay", "tandoori lobster bites", "panipuri shooters", "veg fried fritters"]
+mains = ["pasta", "burger", "pizza", "butter chicken with naan", "thai green curry", "mashed potato"]
+drinks = ["mango lassi", "water", "iced tea", "masala chai", "sprite", "pepsi", "cold coffee"]
+desserts = ["choco lava cake", "ice cream", "kulfi with saffron and pistachio", "tiramisu", "gulab jamun", "cheesecake"]
+extras = ["cheese"]
+
+with gr.Blocks() as ui:
+    gr.Markdown("## Welcome to Nomad Food Truck!")
+    category = gr.Dropdown(["Appetizers", "Mains", "Drinks", "Desserts"], label="Select Category")
+    item = gr.Dropdown([], label="Select Item")
+    extra_options = gr.CheckboxGroup(extras, label="Add Extras", visible=False)
+    
+    category.change(lambda x: gr.update(choices=appetizers if x == "Appetizers" else mains if x == "Mains" else drinks if x == "Drinks" else desserts), category, item)
+    item.change(lambda x: gr.update(visible=(x in ["salad", "pasta", "burger", "choco lava cake"])), item, extra_options)
+
+    add_btn = gr.Button("Add to Order")
+    add_btn.click(add_to_order, inputs=[category, item, extra_options], outputs=gr.Textbox(label="Order Summary", value=""))
+
+ui.launch(share = True)