68 lines
1.9 KiB
TypeScript
68 lines
1.9 KiB
TypeScript
import type { TransferMode } from '../lib/types';
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import type { TransferFileDescriptor } from '../lib/transfer-protocol';
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export type TransferTab = 'send' | 'receive';
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export function createMockTransferCode() {
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return Math.floor(100000 + Math.random() * 900000).toString();
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}
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export function sanitizeReceiveCode(value: string) {
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return value.replace(/\D/g, '').slice(0, 6);
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}
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export function formatTransferSize(bytes: number) {
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if (bytes <= 0) {
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return '0 B';
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}
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const units = ['B', 'KB', 'MB', 'GB', 'TB'];
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let value = bytes;
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let unitIndex = 0;
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while (value >= 1024 && unitIndex < units.length - 1) {
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value /= 1024;
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unitIndex += 1;
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}
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const displayValue = value >= 10 || unitIndex === 0 ? value.toFixed(0) : value.toFixed(1);
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return `${displayValue.replace(/\.0$/, '')} ${units[unitIndex]}`;
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}
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export function buildQrImageUrl(shareUrl: string) {
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return `https://api.qrserver.com/v1/create-qr-code/?size=180x180&data=${encodeURIComponent(shareUrl)}`;
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}
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export function canSendTransferFiles(isAuthenticated: boolean) {
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return isAuthenticated;
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}
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export function getTransferModeSummary(mode: TransferMode) {
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if (mode === 'OFFLINE') {
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return {
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title: '发离线',
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description: '文件先上传到站点存储，保留 7 天，到期自动销毁，可被多次接收。',
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};
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}
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return {
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title: '发在线',
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description: '文件通过浏览器 P2P 直连发送，只能被接收一次，适合双方都在线时快速传输。',
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};
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}
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export function resolveInitialTransferTab(
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isAuthenticated: boolean,
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sessionId: string | null,
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): TransferTab {
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if (!canSendTransferFiles(isAuthenticated) || sessionId) {
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return 'receive';
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}
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return 'send';
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}
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export function canArchiveTransferSelection(files: Pick<TransferFileDescriptor, 'relativePath'>[]) {
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return files.length > 1 || files.some((file) => file.relativePath.includes('/'));
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}
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