modif app explication

app.py

@@ -1,5 +1,6 @@
 from fastapi import FastAPI, HTTPException
 from pydantic import BaseModel
+from typing import Literal
 import pandas as pd
 import boto3
 import joblib
@@ -8,11 +9,53 @@ import io
 
 # === Initialisation FastAPI ===
 app = FastAPI(
-    title="Getaround API - Prédiction de prix",
-    description="API simple pour prédire le prix journalier d'une location 🚗",
-    version="1.0"
+    title="🚗 Getaround Price Prediction API",
+    description="""
+### 🎯 Description  
+Cette API prédit le **prix de location journalier** d’un véhicule.
+
+👉 Pour certaines colonnes (`model_key`, `fuel`, `car_type`, `paint_color`), **choisir une valeur parmi les critères listés**.  
+👉 Pour les autres options (`private_parking_available`, `has_gps`, etc.), utiliser **True pour Oui** et **False pour Non**.
+
+Exemple :  
+```json
+{
+  "model_key": "Audi",
+  "mileage": 100000,
+  "engine_power": 120,
+  "fuel": "diesel",
+  "paint_color": "black",
+  "car_type": "estate",
+  "private_parking_available": true,
+  "has_gps": true,
+  "has_air_conditioning": false,
+  "automatic_car": false,
+  "has_getaround_connect": true,
+  "has_speed_regulator": false,
+  "winter_tires": true
+}
+""",
+version="1.0"
 )
 
+ModelKey = Literal[
+    "Citroën", "Peugeot", "PGO", "Renault", "Audi", "BMW", "Ford", "Mercedes",
+    "Opel", "Porsche", "Volkswagen", "KIA Motors", "Alfa Romeo", "Ferrari", "Fiat",
+    "Lamborghini", "Maserati", "Lexus", "Honda", "Mazda", "Mini", "Mitsubishi",
+    "Nissan", "SEAT", "Subaru", "Suzuki", "Toyota", "Yamaha"
+]
+
+Fuel = Literal["diesel", "petrol", "hybrid_petrol", "electro"]
+
+CarType = Literal[
+    "convertible", "coupe", "estate", "hatchback", "sedan", "subcompact", "suv", "van"
+]
+
+PaintColor = Literal[
+    "black", "grey", "white", "red", "silver", "blue", "orange",
+    "beige", "brown", "green"
+]
+
 # === Schéma attendu pour l'entrée ===
 class InputData(BaseModel):
     model_key: str