package middleware

import (
	"net/http"
	"strings"

	"zardzul/music-index/utils"

	"github.com/gin-gonic/gin"
)

func JWTAuth(secret string) gin.HandlerFunc {
	return func(c *gin.Context) {
		authHeader := c.GetHeader("Authorization")
		parts := strings.SplitN(authHeader, " ", 2)
		if len(parts) != 2 || parts[0] != "Bearer" {
			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "missing or invalid authorization header"})
			return
		}

		claims, err := utils.ValidateToken(secret, parts[1])
		if err != nil {
			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "invalid token"})
			return
		}

		c.Set("user_id", claims.Subject)
		c.Set("user_name", claims.UserName)
		c.Next()
	}
}