import { Database } from 'better-sqlite3';
import { JobStorage, CreateJob, Job, UpdateJob, CreateJobRun, UpdateJobRun, JobRun, CreateJobLog, JobLogEntry, CreateScheduledJob, UpdateScheduledJob, ScheduledJob, CreateDeadLetterJob, DeadLetterJob, JobStorageMetrics, RegisterWorker, UpdateWorkerHeartbeat, Worker } from '@timecrisis/timecrisis';

/**
 * SQLite storage adapter that implements the JobStorage interface.
 * This storage provider uses SQLite as the backing store.
 */
declare class SQLiteJobStorage implements JobStorage {
    /**
     * The SQLite database instance used for all operations
     */
    private db;
    /**
     * Prepared statements.
     */
    private stmtInsertJob;
    private stmtSelectJobById;
    private stmtUpdateJob;
    private stmtDeleteJob;
    private stmtSelectFilteredJobs;
    private stmtInsertJobRun;
    private stmtSelectJobRunById;
    private stmtUpdateJobRun;
    private stmtSelectJobRunsByJobId;
    private stmtDeleteJobRunsByJobId;
    private stmtInsertJobLog;
    private stmtSelectJobLogsByJobId;
    private stmtSelectJobLogsByJobAndRun;
    private stmtDeleteJobLogsByJobId;
    private stmtInsertScheduledJob;
    private stmtSelectScheduledJobById;
    private stmtUpdateScheduledJob;
    private stmtSelectAllScheduledJobs;
    private stmtSelectFilteredScheduledJobs;
    private stmtInsertDeadLetterJob;
    private stmtSelectAllDeadLetterJobs;
    private stmtDeleteDeadLetterBefore;
    private stmtListLocks;
    private stmtInsertLock;
    private stmtUpdateLock;
    private stmtDeleteLock;
    private stmtCleanupCompleted;
    private stmtCleanupFailed;
    private stmtJobCounts;
    private stmtAvgDuration;
    private stmtFailureRate;
    private stmtInsertTypeSlot;
    private stmtDecrementTypeSlot;
    private stmtDeleteEmptyTypeSlots;
    private stmtDeleteWorkerTypeSlots;
    private stmtGetTotalRunningJobs;
    private stmtGetTotalRunningJobsByType;
    private stmtInsertWorker;
    private stmtUpdateWorkerHeartbeat;
    private stmtSelectWorkerByName;
    private stmtSelectInactiveWorkers;
    private stmtSelectAllWorkers;
    private stmtDeleteWorker;
    constructor(db: Database);
    /**
     * Initialize the SQLite storage provider
     * This will run any pending migrations and prepare all SQL statements
     * for improved performance
     */
    init({ runMigrations }?: {
        runMigrations?: boolean;
    }): Promise<void>;
    /**
     * Close the database connection and clean up resources
     * This should be called when the storage provider is no longer needed
     */
    close(): Promise<void>;
    /**
     * Execute a function within a transaction
     * This ensures ACID properties for all operations within the transaction
     * @param fn - Function to execute within the transaction
     * @returns Promise resolving to the function's result
     */
    transaction<T>(fn: (trx: unknown) => T): Promise<T>;
    /**
     * Create a new job in the database
     * @param job - Job data to create
     * @returns Unique identifier of the created job
     */
    createJob(job: CreateJob): Promise<string>;
    /**
     * Retrieve a job by its unique identifier
     * @param id - Unique identifier of the job to retrieve
     * @returns Job data or null if not found
     */
    getJob(id: string): Promise<Job | undefined>;
    /**
     * Update an existing job with new data
     * @param id - Unique identifier of the job to update
     * @param updates - Updated job data
     */
    updateJob(id: string, updates: UpdateJob): Promise<void>;
    /**
     * Create a new job run for an existing job
     * @param jobRun - Job run data to create
     * @returns Unique identifier of the created job run
     */
    createJobRun(jobRun: CreateJobRun): Promise<string>;
    /**
     * Update an existing job run with new data
     * @param id - Unique identifier of the job run to update
     * @param updates - Updated job run data
     */
    updateJobRun(id: string, updates: UpdateJobRun): Promise<void>;
    /**
     * Retrieve a job run by its unique identifier
     * @param id - Unique identifier of the job run to retrieve
     * @returns Job run data or undefined if not found
     */
    getJobRun(id: string): Promise<JobRun | undefined>;
    /**
     * List job runs for a specific job
     * @param jobId - Unique identifier of the job
     * @returns Array of job runs for the specified job
     */
    listJobRuns(jobId: string): Promise<JobRun[]>;
    /**
     * List jobs based on the provided filter criteria
     * @param filter - Filter criteria (optional)
     * @returns Array of jobs matching the filter criteria
     */
    listJobs(filter?: {
        status?: string[];
        type?: string;
        referenceId?: string;
        runAtBefore?: Date;
        limit?: number;
        expiresAtBefore?: Date;
    }): Promise<Job[]>;
    /**
     * Create a new log entry for a job run
     * @param log - Log entry data to create
     */
    createJobLog(log: CreateJobLog): Promise<void>;
    /**
     * List log entries for a specific job run
     * @param jobId - Unique identifier of the job
     * @param runId - Unique identifier of the job run (optional)
     * @returns Array of log entries for the specified job run
     */
    listJobLogs(jobId: string, runId?: string): Promise<JobLogEntry[]>;
    /**
     * Create a new scheduled job
     * @param job - Scheduled job data to create
     * @returns Unique identifier of the created scheduled job
     */
    createScheduledJob(job: CreateScheduledJob): Promise<string>;
    /**
     * Update an existing scheduled job with new data
     * @param id - Unique identifier of the scheduled job to update
     * @param updates - Updated scheduled job data
     */
    updateScheduledJob(id: string, updates: UpdateScheduledJob): Promise<void>;
    /**
     * Retrieve a scheduled job by its unique identifier
     * @param id - Unique identifier of the scheduled job to retrieve
     * @returns Scheduled job data or null if not found
     */
    getScheduledJob(id: string): Promise<ScheduledJob | null>;
    /**
     * List scheduled jobs based on the provided filter criteria
     * @param filter - Filter criteria (optional)
     * @returns Array of scheduled jobs matching the filter criteria
     */
    listScheduledJobs(filter?: {
        enabled?: boolean;
        nextRunBefore?: Date;
        referenceId?: string;
    }): Promise<ScheduledJob[]>;
    /**
     * Create a new dead letter job
     * @param job - Dead letter job data to create
     */
    createDeadLetterJob(job: CreateDeadLetterJob): Promise<void>;
    /**
     * List dead letter jobs
     * @returns Array of dead letter jobs
     */
    listDeadLetterJobs(): Promise<DeadLetterJob[]>;
    /**
     * Acquire a lock for a specific job
     * @param lockId - Unique identifier of the lock
     * @param worker - Identifier of the lock worker
     * @param ttlMs - Time to live for the lock (in milliseconds)
     * @returns True if the lock was acquired, false otherwise
     */
    acquireLock(lockId: string, worker: string, ttlMs: number): Promise<boolean>;
    /**
     * Renew an existing lock for a specific job
     * @param lockId - Unique identifier of the lock
     * @param worker - Identifier of the lock worker
     * @param ttlMs - Time to live for the lock (in milliseconds)
     * @returns True if the lock was renewed, false otherwise
     */
    renewLock(lockId: string, worker: string, ttlMs: number): Promise<boolean>;
    /**
     * Release a lock.
     * @param lockId - Unique identifier of the lock
     * @param worker - Identifier of the lock worker
     * @returns True if the lock was released, false otherwise
     */
    releaseLock(lockId: string, worker: string): Promise<boolean>;
    /**
     * List all locks owned by a specific worker.
     * @returns An array of objects with lock details, each containing lockId, worker, and expiresAt
     */
    listLocks(filters?: {
        worker?: string;
        expiredBefore?: Date;
    }): Promise<{
        lockId: string;
        worker: string;
        expiresAt: Date;
    }[]>;
    /**
     * Clean up jobs and related data based on the provided retention periods
     * @param options - Retention periods for jobs, failed jobs, and dead letter jobs
     */
    cleanup(options: {
        jobRetention: number;
        failedJobRetention: number;
        deadLetterRetention: number;
    }): Promise<void>;
    /**
     * Delete a job and its related data (runs, logs)
     * @param jobId - Unique identifier of the job to delete
     */
    deleteJobAndRelatedData(jobId: string): Promise<void>;
    /**
     * Get storage metrics including job counts and performance metrics
     * @returns Storage metrics
     */
    getMetrics(): Promise<JobStorageMetrics>;
    /**
     * Acquire a slot for a specific job type and worker
     * @param jobType - The type of the job
     * @param worker - The ID of the worker requesting the slot
     * @param maxConcurrent - Maximum allowed concurrent jobs for this type
     * @returns True if the slot was acquired, false otherwise
     */
    acquireTypeSlot(jobType: string, worker: string, maxConcurrent: number): Promise<boolean>;
    /**
     * Release a slot for a specific job type and worker
     * @param jobType - The type of the job
     * @param worker - The worker releasing the slot
     */
    releaseTypeSlot(jobType: string, worker: string): Promise<void>;
    /**
     * Release all slots held by a specific worker
     * @param worker - The worker to release all slots for
     */
    releaseAllTypeSlots(worker: string): Promise<void>;
    /**
     * Get the current running count for a specific job type or total across all types
     * @param jobType - Optional, the type of the job to count. If not provided, returns total across all types
     * @returns Number of currently running jobs
     */
    getRunningCount(jobType?: string): Promise<number>;
    /**
     * Register a new worker instance in the system
     * @param worker - Worker registration data containing the worker name
     * @returns Promise that resolves with the ID of the registered worker
     * @throws ZodError if the worker registration data is invalid
     */
    registerWorker(worker: RegisterWorker): Promise<string>;
    /**
     * Update a worker's heartbeat timestamp
     * @param workerName - Name of the worker to update
     * @param heartbeat - Heartbeat data containing the new timestamp
     * @throws WorkerNotFoundError if the worker doesn't exist
     * @throws ZodError if the heartbeat data is invalid
     */
    updateWorkerHeartbeat(workerName: string, heartbeat: UpdateWorkerHeartbeat): Promise<void>;
    /**
     * Get a worker by its name
     * @param workerName - Name of the worker to retrieve
     * @returns Promise that resolves with the worker data or null if not found
     */
    getWorker(workerName: string): Promise<Worker | null>;
    /**
     * Get all workers that haven't sent a heartbeat since the specified time
     * @param lastHeartbeatBefore - Time threshold for considering workers inactive
     * @returns Promise that resolves with an array of inactive workers
     */
    getInactiveWorkers(lastHeartbeatBefore: Date): Promise<Worker[]>;
    /**
     * Get all registered workers in the system
     * @returns Promise that resolves with an array of all workers
     */
    getWorkers(): Promise<Worker[]>;
    /**
     * Delete a worker by its name
     * @param workerName - Name of the worker to delete
     * @throws WorkerNotFoundError if the worker doesn't exist
     */
    deleteWorker(workerName: string): Promise<void>;
    private mapRowToLock;
    private mapRowToJob;
    private mapRowToJobRun;
    private mapRowToJobLog;
    private mapRowToScheduledJob;
}

export { SQLiteJobStorage };