33 lines
1.2 KiB
TypeScript
33 lines
1.2 KiB
TypeScript
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/** Summarize a URL for display in tool pages. */
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export function summarizeUrl(value: string): string {
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try {
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const url = new URL(value);
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const lastSegment = url.pathname.split("/").filter(Boolean).pop();
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return lastSegment ? `${url.host}/.../${lastSegment}` : url.host;
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} catch {
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return value.length > 72 ? `${value.slice(0, 34)}...${value.slice(-28)}` : value;
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}
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}
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/** Format a byte count to human-readable file size. */
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export function formatFileSize(bytes: number): string {
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if (!Number.isFinite(bytes) || bytes <= 0) return "0 KB";
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if (bytes >= 1024 * 1024) return `${(bytes / 1024 / 1024).toFixed(2)} MB`;
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return `${(bytes / 1024).toFixed(1)} KB`;
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}
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/** Read a File as a data URL string via FileReader. */
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export function fileToDataUrl(file: File): Promise<string> {
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return new Promise<string>((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = () => resolve(String(reader.result || ""));
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reader.onerror = () => reject(new Error("读取素材失败"));
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reader.readAsDataURL(file);
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});
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}
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/** Return a Promise that resolves after the given milliseconds. */
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export function wait(ms: number): Promise<void> {
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return new Promise((resolve) => window.setTimeout(resolve, ms));
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}
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