package api

import (
	"net/http"
	"strings"

	"clickploy/internal/auth"
	"clickploy/internal/db"
	"clickploy/internal/models"

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

func AuthMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		authHeader := c.GetHeader("Authorization")
		if authHeader == "" {
			c.JSON(http.StatusUnauthorized, gin.H{"error": "Authorization header required"})
			c.Abort()
			return
		}

		tokenString := strings.TrimPrefix(authHeader, "Bearer ")
		claims, err := auth.ValidateToken(tokenString)
		if err != nil {
			c.JSON(http.StatusUnauthorized, gin.H{"error": "Invalid token"})
			c.Abort()
			return
		}

		c.Set("userID", claims.UserID)
		c.Set("email", claims.Email)
		c.Next()
	}
}

func AdminMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		userID, exists := c.Get("userID")
		if !exists {
			c.JSON(http.StatusUnauthorized, gin.H{"error": "User not authenticated"})
			c.Abort()
			return
		}

		var user models.User
		if err := db.DB.Where("id = ?", userID).First(&user).Error; err != nil {
			c.JSON(http.StatusUnauthorized, gin.H{"error": "User not found"})
			c.Abort()
			return
		}

		if !user.IsAdmin {
			c.JSON(http.StatusForbidden, gin.H{"error": "Admin privileges required"})
			c.Abort()
			return
		}

		c.Next()
	}
}