"""
Programs Endpoint
=================

/api/programs - 지원 마일리지 프로그램 목록

API 키 불필요 (공개 정보)
"""

from starlette.requests import Request
from starlette.responses import JSONResponse

from app.config import MILEAGE_PROGRAMS, CABIN_DISPLAY_NAMES


async def list_programs(request: Request) -> JSONResponse:
    """
    지원되는 마일리지 프로그램 목록 반환 (API 키 불필요)
    """
    formatted_programs = []
    for prog in MILEAGE_PROGRAMS:
        cabin_names = [CABIN_DISPLAY_NAMES.get(c, c) for c in prog["cabins"]]
        formatted_programs.append({
            "code": prog["code"],
            "name": prog["name"],
            "cabins": cabin_names,
            "provides_seat_count": prog["has_seat_count"],
            "provides_trip_details": prog["has_trip_data"],
            "notes": prog.get("notes"),
        })
    
    return JSONResponse({
        "success": True,
        "count": len(formatted_programs),
        "programs": formatted_programs,
        "usage": {
            "search": "Use 'code' in the 'programs' parameter of /api/award/search",
            "routes": "Use 'code' as 'source' parameter of /api/award/routes",
            "example": "/api/award/search with programs='aeroplan,united'"
        }
    })