import type { RegenState, PendingEpochCommit } from "../types.js";
export type { RegenState, PendingEpochCommit } from "../types.js";
import type { OrchestrationInput, SerializableSessionConfig, SessionContextUsage, SubAgentEntry, TurnAction } from "../types.js";
export interface ActiveTimer {
    deadlineMs: number;
    originalDurationMs: number;
    reason: string;
    type: "wait" | "cron" | "cron_at" | "idle" | "agent-poll" | "input-grace";
    shouldRehydrate?: boolean;
    waitPlan?: {
        shouldDehydrate: boolean;
        resetAffinityOnDehydrate: boolean;
        preserveAffinityOnHydrate: boolean;
    };
    content?: string;
    question?: string;
    choices?: string[];
    allowFreeform?: boolean;
    agentIds?: string[];
}
export type ShutdownMode = NonNullable<OrchestrationInput["pendingShutdown"]>["mode"];
export type PendingShutdownState = NonNullable<OrchestrationInput["pendingShutdown"]>;
export type PendingChildDigest = NonNullable<OrchestrationInput["pendingChildDigest"]>;
export type PendingInputQuestion = NonNullable<OrchestrationInput["pendingInputQuestion"]>;
export type CronSchedule = NonNullable<OrchestrationInput["cronSchedule"]>;
export type CronAtSchedule = NonNullable<OrchestrationInput["cronAtSchedule"]>;
export interface InterruptedWaitTimer {
    remainingSec: number;
    reason: string;
    shouldRehydrate: boolean;
    waitPlan?: ActiveTimer["waitPlan"];
    interruptKind?: "child" | "user";
}
export interface InterruptedCronTimer {
    remainingMs: number;
    reason: string;
    originalDurationMs?: number;
    shouldRehydrate?: boolean;
}
/** Mutable orchestration state — replaces the closure of `let`s in the prior monolith. */
export interface DurableSessionState {
    config: SerializableSessionConfig;
    affinityKey: string;
    iteration: number;
    loopIteration: number;
    retryCount: number;
    needsHydration: boolean;
    /**
     * Session lifecycle protocol: last committed snapshot-store version,
     * recorded from each runTurn result. 0 = no commit recorded yet.
     * Threaded through continue-as-new; the next turn's activity input
     * carries it as `snapshot.expectedVersion` for worker self-validation.
     */
    snapshotVersion: number;
    preserveAffinityOnHydrate: boolean;
    blobEnabled: boolean;
    pendingRehydrationMessage?: string;
    pendingPrompt?: string;
    /** Attachment refs for the carried pendingPrompt — dropped silently before 1.0.65's carry fix. */
    pendingAttachments?: import("../types.js").PromptAttachmentRef[];
    pendingRequiredTool?: string;
    pendingSystemPrompt?: string;
    runtimeModelNotice?: string;
    blockedError?: {
        message: string;
        authFailure?: boolean;
    };
    pendingCycleOrigin?: "cron" | "cron_at";
    bootstrapPrompt: boolean;
    pendingToolActions: TurnAction[];
    subAgents: SubAgentEntry[];
    /** Child-side: first completion report already sent to the parent. */
    reportedFirstCompletionToParent: boolean;
    taskContext?: string;
    cronSchedule?: CronSchedule;
    cronAtSchedule?: CronAtSchedule;
    nextSummarizeAt: number;
    contextUsage?: SessionContextUsage;
    activeTimer: ActiveTimer | null;
    pendingInputQuestion: PendingInputQuestion | null;
    waitingForAgentIds: string[] | null;
    interruptedWaitTimer: InterruptedWaitTimer | null;
    interruptedCronTimer: InterruptedCronTimer | null;
    pendingChildDigest: PendingChildDigest | null;
    pendingShutdown: PendingShutdownState | null;
    lastResponseVersion: number;
    lastCommandVersion: number;
    lastCommandId?: string;
    cancelledMessageIds: Set<string>;
    emittedCancelledMessageIds: Set<string>;
    recentClientMessageIds: string[];
    legacyPendingMessage: unknown;
    orchestrationResult: string | null;
    observedSenderKeys: string[];
    /** True once a non-owner sender (or a second distinct sender) appears. */
    multiWriter: boolean;
    /** Whether the [SHARED SESSION] preamble has been issued to the agent. */
    sharedPreambleSent: boolean;
    /** Owner display name learned from an owner-relation sender. */
    ownerDisplay?: string;
    /**
     * Which incarnation of the SDK transcript is live. 0 = original.
     * Carried across every continue-as-new; incremented only by the
     * regenerate flip. The turn index is NEVER reset (stopTurn queues,
     * turn metrics, cascade ids all rely on its monotonicity).
     */
    transcriptEpoch: number;
    /**
     * One-shot: the next turn is the first of a fresh epoch and dispatches
     * as the runTurn2 activity (conditional epoch init). Cleared once that
     * turn's result is recorded.
     */
    epochStartPending: boolean;
    /** In-flight regeneration pipeline (cleared at the flip and on abort). */
    regen: RegenState | null;
    /** iteration at the current epoch's start (min-age gate baseline). */
    epochStartIteration: number;
    /** Epoch-ms of the last completed flip (agent cooldown baseline). */
    lastRegenAtMs: number;
    /**
     * Post-flip boundary record: set by the flip CAN, consumed by the new
     * execution's first drain, which emits session.epoch_committed + sets
     * sessions.transcript_epoch in one CMS transaction, then clears this.
     */
    pendingEpochCommit: PendingEpochCommit | null;
}
/** Immutable per-execution configuration derived from the orchestration input. */
export interface DurableSessionOptions {
    idleTimeout: number;
    inputGracePeriod: number;
    isSystem: boolean;
    parentSessionId?: string;
    nestingLevel: number;
    baseSystemMessage?: string | {
        mode: "append" | "replace";
        content: string;
    };
}
/** Single object passed through every orchestration helper. */
export interface DurableSessionRuntime {
    ctx: any;
    input: OrchestrationInput;
    versions: {
        currentVersion: string;
        latestVersion: string;
    };
    manager: any;
    /** Mutable: reassigned when affinity rotates on hydrate/dehydrate. */
    session: any;
    state: DurableSessionState;
    options: DurableSessionOptions;
}
export declare const INTERNAL_SYSTEM_TURN_PROMPT = "Internal orchestration wake-up. The user did not send a new message. Continue with the latest system instructions.";
export declare const MAX_RETRIES = 3;
export declare const MAX_SUB_AGENTS = 50;
export declare const MAX_NESTING_LEVEL = 2;
export declare const CHILD_UPDATE_BATCH_MS = 30000;
export declare const SHUTDOWN_TIMEOUT_MS = 60000;
export declare const SHUTDOWN_POLL_INTERVAL_MS = 5000;
export declare const FIRST_SUMMARIZE_DELAY = 60000;
export declare const REPEAT_SUMMARIZE_DELAY = 300000;
export declare const FIFO_BUCKET_COUNT = 20;
export declare const MAX_BUCKET_BYTES: number;
export declare const MAX_DRAIN_PER_TURN = 50;
export declare const MAX_PREDISPATCH_SWEEP = 50;
export declare const MAX_ITERATIONS_PER_EXECUTION = 10;
export declare const MAX_HISTORY_SIZE_BEFORE_CONTINUE_AS_NEW_BYTES: number;
export declare const HISTORY_SIZE_CHECK_INTERVAL_ITERATIONS = 3;
export declare const NON_BLOCKING_TIMER_MS = 10;
export declare const PREDISPATCH_CANCEL_SWEEP_MS = 100;
export declare const RECENT_CLIENT_MESSAGE_ID_LIMIT = 20;
export declare function normalizeRecentClientMessageIds(value: unknown): string[];
export declare function touchRecentClientMessageIds(state: DurableSessionState, ids: string[]): void;
export declare function createInitialState(input: OrchestrationInput, options: DurableSessionOptions): DurableSessionState;
export declare function deriveOptions(input: OrchestrationInput): DurableSessionOptions;
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