package middleware

import (
	"net/http"

	"mengstack/internal/kernel/errors"
	"mengstack/internal/kernel/response"

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

// BodyLimit restricts the maximum request body size.
func BodyLimit(maxBytes int64) gin.HandlerFunc {
	return func(c *gin.Context) {
		if c.Request.ContentLength > maxBytes {
			response.Fail(c, errors.New("BODY_TOO_LARGE", "request body too large", http.StatusRequestEntityTooLarge))
			c.Abort()
			return
		}
		c.Request.Body = http.MaxBytesReader(c.Writer, c.Request.Body, maxBytes)
		c.Next()
	}
}