package middleware

import (
	models "api-service/internal/models"
	"net/http"

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

// ErrorHandler handles errors globally
func ErrorHandler() gin.HandlerFunc {
	return func(c *gin.Context) {
		c.Next()

		if len(c.Errors) > 0 {
			err := c.Errors.Last()
			status := http.StatusInternalServerError

			// Determine status code based on error type
			switch err.Type {
			case gin.ErrorTypeBind:
				status = http.StatusBadRequest
			case gin.ErrorTypeRender:
				status = http.StatusUnprocessableEntity
			case gin.ErrorTypePrivate:
				status = http.StatusInternalServerError
			}

			response := models.ErrorResponse{
				Error:   "internal_error",
				Message: err.Error(),
				Code:    status,
			}

			c.JSON(status, response)
		}
	}
}