from fastapi import APIRouter, Request

router = APIRouter()

west_african_countries = [
    "Benin",
    "Burkina Faso", 
    "Cape Verde",
    "Gambia",
    "Ghana",
    "Guinea",
    "Guinea-Bissau",
    "Ivory Coast",
    "Liberia",
    "Mali",
    "Mauritania",
    "Niger",
    "Nigeria",
    "Senegal",
    "Sierra Leone",
    "Togo"
]

@router.get("/countries")
async def get_west_african_countries(request: Request):
    """endpoint that returns list of countries in west africa"""
    if request.method != "GET":
        raise HTTPException(status_code=405, detail="Method Not Allowed")
    
    return {
        "method": "GET",
        "_verb": "get",
        "countries": west_african_countries
    }