package middleware

import (
	"music-server/internal/backend"
	"music-server/internal/logging"
	"net/http"

	"github.com/labstack/echo/v5"
)

// SyncCheckMiddleware blocks requests when syncing is in progress.
// It returns HTTP 423 Locked with a standard message.
// This middleware should be applied to handlers that cannot execute during sync.
func SyncCheckMiddleware(next echo.HandlerFunc) echo.HandlerFunc {
	return func(c *echo.Context) error {
		if backend.Syncing {
			logging.GetLogger().Info("Syncing is in progress - request blocked")
			return c.JSON(http.StatusLocked, "Syncing is in progress")
		}
		return next(c)
	}
}