//go:build js && wasm

package ui

import "log"

// CanvasWarning represents a type of canvas warning
type CanvasWarning int

const (
	WarnItemNotFound CanvasWarning = iota
	WarnConnectionNotFound
	WarnInvalidOperation
	WarnSelfConnection
	WarnMissingCallback
)

// warningNames maps warning types to human-readable names
var warningNames = map[CanvasWarning]string{
	WarnItemNotFound:       "ItemNotFound",
	WarnConnectionNotFound: "ConnectionNotFound",
	WarnInvalidOperation:   "InvalidOperation",
	WarnSelfConnection:     "SelfConnection",
	WarnMissingCallback:    "MissingCallback",
}

// LogCanvasWarning logs a warning for recoverable canvas issues.
// These are situations where the operation cannot complete but the
// application can continue safely.
func LogCanvasWarning(warn CanvasWarning, format string, args ...any) {
	name := warningNames[warn]
	if name == "" {
		name = "Unknown"
	}
	log.Printf("[Canvas %s] "+format, append([]any{name}, args...)...)
}