/**
 * HarborForge Calendar Scheduler
 *
 * PLG-CAL-002: Plugin-side handling for pending slot execution.
 * PLG-CAL-004: ScheduledGatewayRestart event handling with state persistence.
 *
 * Responsibilities:
 *   - Run calendar heartbeat every minute
 *   - Detect when agent is Idle and slots are pending
 *   - Wake agent with task context
 *   - Handle slot status transitions (attended, ongoing, deferred)
 *   - Manage agent status transitions (idle → busy/on_call)
 *   - Persist state on ScheduledGatewayRestart and restore on startup
 *   - Send final heartbeat before graceful shutdown
 *
 * Design reference: NEXT_WAVE_DEV_DIRECTION.md §6 (Agent wakeup mechanism)
 */
import { CalendarBridgeClient } from './calendar-bridge';
import { CalendarSlotResponse, AgentStatusValue } from './types';
export interface CalendarSchedulerConfig {
    /** Calendar bridge client for backend communication */
    bridge: CalendarBridgeClient;
    /** Function to get current agent status from backend */
    getAgentStatus: () => Promise<AgentStatusValue | null>;
    /** Function to wake/spawn agent with task context */
    wakeAgent: (context: AgentWakeContext) => Promise<boolean>;
    /** Logger instance */
    logger: {
        info: (...args: any[]) => void;
        error: (...args: any[]) => void;
        debug: (...args: any[]) => void;
        warn: (...args: any[]) => void;
    };
    /** Heartbeat interval in milliseconds (default: 60000) */
    heartbeatIntervalMs?: number;
    /** Enable verbose debug logging */
    debug?: boolean;
    /** Directory for state persistence (default: plugin data dir) */
    stateDir?: string;
}
/**
 * Context passed to agent when waking for slot execution.
 * This is the payload the agent receives to understand what to do.
 */
export interface AgentWakeContext {
    /** The slot to execute */
    slot: CalendarSlotResponse;
    /** Human-readable task description */
    taskDescription: string;
    /** Prompt/instructions for the agent */
    prompt: string;
    /** Whether this is a virtual slot (needs materialization) */
    isVirtual: boolean;
}
/**
 * Current execution state tracked by the scheduler.
 */
interface SchedulerState {
    /** Whether scheduler is currently running */
    isRunning: boolean;
    /** Currently executing slot (null if idle) */
    currentSlot: CalendarSlotResponse | null;
    /** Last heartbeat timestamp */
    lastHeartbeatAt: Date | null;
    /** Interval handle for cleanup */
    intervalHandle: ReturnType<typeof setInterval> | null;
    /** Set of slot IDs that have been deferred in current session */
    deferredSlotIds: Set<string>;
    /** Whether agent is currently processing a slot */
    isProcessing: boolean;
    /** Whether a gateway restart is scheduled/pending */
    isRestartPending: boolean;
}
/**
 * CalendarScheduler manages the periodic heartbeat and slot execution lifecycle.
 */
export declare class CalendarScheduler {
    private config;
    private state;
    private stateFilePath;
    constructor(config: CalendarSchedulerConfig);
    /**
     * Get default state directory (plugin data directory or temp fallback).
     */
    private getDefaultStateDir;
    /**
     * Persist current state to disk for recovery after restart.
     */
    private persistState;
    /**
     * Restore state from disk if available.
     */
    private restoreState;
    /**
     * Clear persisted state file after successful restore.
     */
    private clearPersistedState;
    /**
     * Send a final heartbeat to the backend before shutdown.
     */
    private sendFinalHeartbeat;
    /**
     * Handle ScheduledGatewayRestart event.
     * PLG-CAL-004: Persist state, send final heartbeat, pause scheduled tasks.
     */
    private handleScheduledGatewayRestart;
    /**
     * Start the calendar scheduler.
     * Begins periodic heartbeat to check for pending slots.
     */
    start(): void;
    /**
     * Stop the calendar scheduler.
     * Cleans up intervals and resets state.
     */
    stop(): void;
    /**
     * Execute a single heartbeat cycle.
     * Fetches pending slots and handles execution logic.
     */
    runHeartbeat(): Promise<void>;
    /**
     * Handle slots when agent is not idle.
     * Defer all pending slots with priority boost.
     */
    private handleNonIdleAgent;
    /**
     * Handle slots when agent is idle.
     * Select highest priority slot and wake agent.
     */
    private handleIdleAgent;
    /**
     * Check if a slot is a ScheduledGatewayRestart system event.
     */
    private isScheduledGatewayRestart;
    /**
     * Execute a slot by waking the agent.
     */
    private executeSlot;
    /**
     * Build the wake context for an agent based on slot details.
     */
    private buildWakeContext;
    /**
     * Build prompt for job-type slots.
     */
    private buildJobPrompt;
    /**
     * Build prompt for system event slots.
     */
    private buildSystemPrompt;
    /**
     * Build prompt for entertainment slots.
     */
    private buildEntertainmentPrompt;
    /**
     * Build generic prompt for slots without specific event data.
     */
    private buildGenericPrompt;
    /**
     * Mark a slot as deferred with priority boost.
     */
    private deferSlot;
    /**
     * Revert a slot to not_started status after failed execution attempt.
     */
    private revertSlot;
    /**
     * Complete the current slot execution.
     * Call this when the agent finishes the task.
     */
    completeCurrentSlot(actualDurationMinutes: number): Promise<void>;
    /**
     * Abort the current slot execution.
     * Call this when the agent cannot complete the task.
     */
    abortCurrentSlot(reason?: string): Promise<void>;
    /**
     * Pause the current slot execution.
     * Call this when the agent needs to temporarily pause.
     */
    pauseCurrentSlot(): Promise<void>;
    /**
     * Resume a paused slot.
     */
    resumeCurrentSlot(): Promise<void>;
    /**
     * Trigger an immediate replanning pass after the current slot lifecycle ends.
     * This lets previously deferred/not-started slots compete again as soon as
     * the agent becomes idle.
     */
    private triggerReplan;
    /**
     * Get a stable ID for a slot (real or virtual).
     */
    private getSlotId;
    /**
     * Format a Date as ISO time string (HH:MM:SS).
     */
    private formatTime;
    /**
     * Debug logging helper.
     */
    private logDebug;
    /**
     * Get current scheduler state (for introspection).
     */
    getState(): Readonly<SchedulerState>;
    /**
     * Check if scheduler is running.
     */
    isRunning(): boolean;
    /**
     * Check if currently processing a slot.
     */
    isProcessing(): boolean;
    /**
     * Get the current slot being executed (if any).
     */
    getCurrentSlot(): CalendarSlotResponse | null;
    /**
     * Check if a gateway restart is pending.
     */
    isRestartPending(): boolean;
    /**
     * Get the path to the state file.
     */
    getStateFilePath(): string;
}
/**
 * Factory function to create a CalendarScheduler from plugin context.
 */
export declare function createCalendarScheduler(config: CalendarSchedulerConfig): CalendarScheduler;
export {};
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