import type { AttachmentStore } from './attachment-store.js';
import type { ConversationStreamStore } from './conversation-stream.js';
import type { CostBudgetStore } from './cost-budget.js';
import type { RunStore } from './persistence.js';
import type { AgentSubmissionStore } from './submission-store.js';
import type { SessionStore } from './types.js';
export interface PersistenceHealth {
    ok: boolean;
    latencyMs: number;
    backend: string;
}
export interface PersistenceDeleteResult {
    sessionId: string;
    deletedSubmissions: number;
    deletedAttachments: number;
    deletedConversationStream: boolean;
    /** Signed, content-free evidence when deletion recording is configured. */
    deletionRecord?: DeletionCompletionRecord;
}
export interface DeletionCompletionRecord {
    version: 1;
    deletionId: string;
    /** HMAC pseudonym of the deleted session id; the id itself is not retained. */
    subjectDigest: string;
    tenantDigest?: string;
    completedAt: string;
    deletedSubmissions: number;
    deletedAttachments: number;
    deletedConversationStream: boolean;
    previousRecordDigest?: string;
    recordDigest: string;
    algorithm: 'hmac-sha256' | 'ed25519';
    keyId: string;
    signature: string;
}
/** Complete persistence surface consumed by a Fabric host. */
export interface PersistenceBundle {
    readonly backend: string;
    readonly sessionStore: SessionStore;
    readonly submissionStore: AgentSubmissionStore;
    readonly conversationStreamStore: ConversationStreamStore;
    readonly attachmentStore: AttachmentStore;
    readonly runStore: RunStore;
    readonly costBudgetStore: CostBudgetStore;
    migrate(): Promise<void>;
    health(): Promise<PersistenceHealth>;
    serverOptions(): Promise<{
        sessionStore: SessionStore;
        submissionStore: AgentSubmissionStore;
        conversationStreamStore: ConversationStreamStore;
        attachmentStore: AttachmentStore;
    }>;
    deleteSession(sessionId: string): Promise<PersistenceDeleteResult>;
    close(): Promise<void>;
}
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