@ai2070/l0/dist/runtime/event-handlers.js

L0: The Missing Reliability Substrate for AI

export function combineEvents(...handlers) {
    const validHandlers = handlers.filter((h) => typeof h === "function");
    if (validHandlers.length === 0) {
        return () => { };
    }
    if (validHandlers.length === 1) {
        return validHandlers[0];
    }
    return (event) => {
        for (const handler of validHandlers) {
            try {
                handler(event);
            }
            catch (error) {
                console.error(`Event handler error for ${event.type}:`, error instanceof Error ? error.message : error);
            }
        }
    };
}
export function filterEvents(types, handler) {
    const typeSet = new Set(types);
    return (event) => {
        if (typeSet.has(event.type)) {
            handler(event);
        }
    };
}
export function excludeEvents(types, handler) {
    const typeSet = new Set(types);
    return (event) => {
        if (!typeSet.has(event.type)) {
            handler(event);
        }
    };
}
export function debounceEvents(ms, handler) {
    let timeout = null;
    let latestEvent = null;
    return (event) => {
        latestEvent = event;
        if (timeout === null) {
            timeout = setTimeout(() => {
                if (latestEvent) {
                    handler(latestEvent);
                }
                timeout = null;
                latestEvent = null;
            }, ms);
        }
    };
}
export function batchEvents(size, maxWaitMs, handler) {
    let batch = [];
    let timeout = null;
    const flush = () => {
        if (batch.length > 0) {
            handler([...batch]);
            batch = [];
        }
        if (timeout) {
            clearTimeout(timeout);
            timeout = null;
        }
    };
    return (event) => {
        batch.push(event);
        if (batch.length >= size) {
            flush();
        }
        else if (!timeout) {
            timeout = setTimeout(flush, maxWaitMs);
        }
    };
}
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