36 lines
1.3 KiB
TypeScript
36 lines
1.3 KiB
TypeScript
export * as SessionTitleFallback from "./session-title-fallback.js"
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const pattern = /^(New session|Child session) - \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$/
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interface Info {
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readonly title?: string
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readonly parentID?: string
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readonly time: {
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readonly created: number
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}
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}
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/** Supplies the timestamped title required by compatibility surfaces. */
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export function withTimestampedFallback(info: Info) {
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return info.title ?? fallback(info)
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}
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/** Supplies a compact human label and collapses historical timestamped fallbacks. */
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export function displayLabel(info: Pick<Info, "title" | "parentID">) {
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if (!info.title) return info.parentID ? "Child session" : "New session"
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return info.title.match(pattern)?.[1] ?? info.title
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}
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/** Recognizes missing and historical root or child fallback titles. */
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export function isFallbackTitle(title?: string) {
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return title === undefined || pattern.test(title)
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}
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/** Recognizes a missing title or the exact root fallback for this session. */
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export function isExactRootFallback(info: Pick<Info, "title" | "time">) {
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return info.title === undefined || info.title === fallback({ time: info.time })
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}
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function fallback(info: Pick<Info, "parentID" | "time">) {
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return `${info.parentID ? "Child" : "New"} session - ${new Date(info.time.created).toISOString()}`
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}
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