package middleware

import (
	"net/http"
	"strings"

	"github.com/gin-gonic/gin"
	"onixbyte.com/pipely/internal/auth"
)

func AuthMiddleware(authSvc *auth.Service) gin.HandlerFunc {
	return func(c *gin.Context) {
		authHeader := c.GetHeader("Authorization")
		if authHeader == "" {
			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Authorisation header is missing"})
			return
		}

		parts := strings.SplitN(authHeader, " ", 2)
		if !(len(parts) == 2 && parts[0] == "Bearer") {
			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Invalid authorisation format"})
			return
		}

		user, err := authSvc.ValidateToken(parts[1])
		if err != nil {
			c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{"error": "Unauthorised: " + err.Error()})
			return
		}

		c.Set("user", user)
		c.Next()
	}
}