package internal

import (
	"context"
	"net/http"
	"strings"
)

type contextKey string

const UserContext contextKey = "user"

func AuthMiddleware(next http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		authHeader := r.Header.Get("Authorization")
		if authHeader == "" {
			http.Error(w, "Authorization header is required", http.StatusUnauthorized)
			return
		}

		authToken := strings.Split(authHeader, "Bearer ")[1]
		ctx := context.WithValue(r.Context(), UserContext, ParseJWT(authToken))
		req := r.WithContext(ctx)
		next.ServeHTTP(w, req)
	})
}