56 lines
1.5 KiB
TypeScript
56 lines
1.5 KiB
TypeScript
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type Listener = () => void;
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const softHiddenSessions = new Map<string, number>();
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const listeners = new Set<Listener>();
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let evictionRequestSessionId: string | null = null;
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function emit(): void {
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listeners.forEach((listener) => listener());
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}
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export const terminalHiddenRendererStore = {
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getSoftHiddenCount: () => softHiddenSessions.size,
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isSoftHidden: (sessionId: string) => softHiddenSessions.has(sessionId),
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markSoftHidden: (sessionId: string) => {
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softHiddenSessions.set(sessionId, Date.now());
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emit();
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},
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clearSoftHidden: (sessionId: string) => {
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if (!softHiddenSessions.delete(sessionId)) return;
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emit();
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},
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/** Returns the oldest soft-hidden session id when over the keep limit. */
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pickEvictionCandidate: (keepCount: number): string | null => {
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if (softHiddenSessions.size < keepCount) return null;
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let oldestId: string | null = null;
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let oldestTs = Number.POSITIVE_INFINITY;
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for (const [sessionId, ts] of softHiddenSessions) {
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if (ts < oldestTs) {
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oldestTs = ts;
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oldestId = sessionId;
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}
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}
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return oldestId;
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},
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requestEviction: (sessionId: string) => {
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evictionRequestSessionId = sessionId;
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emit();
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},
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consumeEvictionRequest: (sessionId: string): boolean => {
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if (evictionRequestSessionId !== sessionId) return false;
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evictionRequestSessionId = null;
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return true;
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},
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subscribe: (listener: Listener) => {
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listeners.add(listener);
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return () => listeners.delete(listener);
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},
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};
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