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/*---------------------------------------------------------------------------------------------
agentHostChangesetCoordinator.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { Disposable } from '../../../base/common/lifecycle.js';
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import { URI } from '../../../base/common/uri.js';
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import { IAgentSessionMetadata } from '../common/agentService.js';
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import { buildBranchChangesetUri, ChangesetKind, parseChangesetUri } from '../common/changesetUri.js';
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import { ChangesetFileMonitorCoordinator } from './agentHostChangesetFileMonitorCoordinator.js';
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import { AgentHostStateManager, IAgentHostStateManager } from './agentHostStateManager.js';
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import { IAgentHostChangesetService, META_CHANGESET_BRANCH, META_CHANGESET_SESSION, META_LEGACY_DIFFS } from '../common/agentHostChangesetService.js';
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import { IAgentHostChangesetSubscriptionService } from '../common/agentHostChangesetSubscriptionService.js';
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import { IAgentHostChangesetOperationService } from '../common/agentHostChangesetOperationService.js';
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import { IAgentHostGitStateService } from '../common/agentHostGitStateService.js';
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import { IInstantiationService } from '../../instantiation/common/instantiation.js';
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import { isAhpChatChannel } from '../common/state/sessionState.js';
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/**
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* Raw metadata blob values for the session DB, batch-read by the caller.
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* Keys are the changeset-specific metadata keys ({@link META_CHANGESET_BRANCH}
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* etc.); values are the raw `string | undefined` payloads as returned by
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* `ISessionDatabase.getMetadataObject`.
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*/
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export type IChangesetSessionMetadata = Record<string, string | undefined>;
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/**
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* Coordinator that encapsulates all `AgentService`-side orchestration of
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* the changeset feature. Sits between `AgentService` (which owns session
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* lifecycle / subscription refcounting / batched DB reads) and
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* {@link IAgentHostChangesetService} (which owns compute / publish /
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* persist primitives).
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*
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* Owns only URI routing and forwards lifecycle signals. Subscription state is
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* recorded in the shared changeset subscription service. All computation,
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* working-directory gating, and the deferred-refresh state machine live in
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* {@link IAgentHostChangesetService}.
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*
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* No per-session controllers — the cross-cutting concerns (listSessions
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* overlay, subscribe URI routing) inherently span sessions, so a single
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* coordinator with internal maps is simpler than per-session RAII.
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*/
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export class AgentHostChangesetCoordinator extends Disposable {
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private readonly _changesetFileMonitor: ChangesetFileMonitorCoordinator;
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constructor(
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@IAgentHostStateManager private readonly _stateManager: AgentHostStateManager,
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@IAgentHostChangesetOperationService private readonly _changesetOperationService: IAgentHostChangesetOperationService,