from fastapi import APIRouter, Depends, HTTPException
from core.database import fake_users_db

router = APIRouter()

@router.post("/login")
async def login_handler(
    username: str,
    password: str
):
    """Authenticate user and return login token"""
    user = fake_users_db.get(username)
    if not user or user["password"] != password:
        raise HTTPException(status_code=400, detail="Invalid username or password")
    
    return {
        "message": "Login successful",
        "user": username,
        "token": "demo_jwt_token_" + username,
        "features": {
            "rate_limit": 100,
            "expires_in": 3600,
            "permissions": ["read", "write"]
        }
    }