90 lines
2.4 KiB
TypeScript
90 lines
2.4 KiB
TypeScript
/**
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* View-model hook for the project work-state read-model.
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*
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* It consumes the WorkStateGateway only, and optionally subscribes to existing
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* domain events through SystemGateway to refresh the read-only snapshot.
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*/
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import { useCallback, useEffect, useState } from "react";
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import type { GatewayError, ProjectWorkState } from "@/domain";
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import { useGateways } from "@/app/di";
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import { onAgentRosterChanged } from "@/features/agents/agentRosterEvents";
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export interface ProjectWorkStateViewModel {
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state: ProjectWorkState | null;
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error: string | null;
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busy: boolean;
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refresh: () => Promise<void>;
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}
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function describe(e: unknown): string {
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if (e && typeof e === "object" && "message" in e) {
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return String((e as GatewayError).message);
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}
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return String(e);
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}
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export function useProjectWorkState(projectId: string): ProjectWorkStateViewModel {
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const { workState, system } = useGateways();
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const [state, setState] = useState<ProjectWorkState | null>(null);
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const [error, setError] = useState<string | null>(null);
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const [busy, setBusy] = useState(false);
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const refresh = useCallback(async () => {
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setBusy(true);
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setError(null);
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try {
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setState(await workState.getProjectWorkState(projectId));
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} catch (e) {
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setError(describe(e));
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} finally {
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setBusy(false);
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}
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}, [projectId, workState]);
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useEffect(() => {
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void refresh();
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}, [refresh]);
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useEffect(
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() =>
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onAgentRosterChanged((change) => {
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if (change.projectId === projectId) void refresh();
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}),
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[projectId, refresh],
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);
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useEffect(() => {
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if (!system) return;
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let unsubscribe: (() => void) | undefined;
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let cancelled = false;
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void system.onDomainEvent((event) => {
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if (event.type === "agentBusyChanged" && event.projectId !== projectId) {
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return;
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}
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if (
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event.type === "agentLaunched" ||
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event.type === "agentExited" ||
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event.type === "agentBusyChanged" ||
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event.type === "delegationReady" ||
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event.type === "orchestratorRequestProcessed" ||
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event.type === "backgroundTaskChanged" ||
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event.type === "agentInboxChanged" ||
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event.type === "agentWakeChanged"
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) {
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void refresh();
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}
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}).then((u) => {
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if (cancelled) u();
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else unsubscribe = u;
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});
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return () => {
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cancelled = true;
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unsubscribe?.();
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};
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}, [refresh, system]);
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return { state, error, busy, refresh };
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}
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