up

src/utils/presentation.ts

@@ -7,6 +7,8 @@ export const modeLabels: Record<ScreenMode, string> = {
   6: 'Результаты',
   7: 'Таймер',
   8: 'Текст',
+  9: 'QR-код',
+  10: 'Список команд',
 }
 export function remainingTime(timer: TimerState, elapsedMs: number): number {
   return Math.max(0, timer.remainingMs - (timer.status === 'running' ? Math.max(0, elapsedMs) : 0))
@@ -15,3 +17,25 @@ export function formatTimer(milliseconds: number): string {
   const seconds = Math.ceil(Math.max(0, milliseconds) / 1000)
   return `${String(Math.floor(seconds / 60)).padStart(2, '0')}:${String(seconds % 60).padStart(2, '0')}`
 }
+
+export const timerLabels = ['Перерыв', 'До начала игры', 'До конца игры'] as const
+export function changeTimerType(label: string, previous = 0, next = 0): string {
+  return !label.trim() || label === timerLabels[previous] ? timerLabels[next]! : label
+}
+export function validQR(link: string, caption = ''): boolean {
+  try {
+    const url = new URL(link)
+    return (
+      /^https?:\/\/[^/\\\s?#]/.test(link) &&
+      ['http:', 'https:'].includes(url.protocol) &&
+      !!url.hostname &&
+      !url.username &&
+      !url.password &&
+      link === link.trim() &&
+      new TextEncoder().encode(link).length <= 2048 &&
+      new TextEncoder().encode(caption).length <= 10000
+    )
+  } catch {
+    return false
+  }
+}