PHP API

use Queuety\Queuety;

// Handler name + payload (original API)
Queuety::dispatch( 'send_email', [ 'to' => 'user@example.com' ] );

// Contracts\Job instance (v0.6.0+)
Queuety::dispatch( new SendEmailJob( to: 'user@example.com' ) );

// With options
Queuety::dispatch( 'send_email', [ 'to' => 'user@example.com' ] )
    ->on_queue( 'emails' )
    ->with_priority( Priority::High )
    ->delay( 300 )
    ->max_attempts( 5 )
    ->rate_limit( 10, 60 )
    ->unique()
    ->after( $other_job_id );

// Get the job ID
$job_id = Queuety::dispatch( 'send_email', $payload )->id();

// With a Job instance
Queuety::dispatch_sync( new SendEmailJob( to: 'user@example.com', subject: 'Hi', body: 'Hello' ) );

// With a handler name and payload
Queuety::dispatch_sync( 'send_email', [ 'to' => 'user@example.com' ] );

$job_ids = Queuety::batch( [
    [ 'handler' => 'send_email', 'payload' => [ 'to' => 'a@example.com' ], 'queue' => 'emails' ],
    [ 'handler' => 'send_email', 'payload' => [ 'to' => 'b@example.com' ], 'priority' => 2 ],
] );

$batch = Queuety::create_batch( [
    new ImportUsersJob( $chunk_1 ),
    new ImportUsersJob( $chunk_2 ),
] )
    ->name( 'Import users' )
    ->then( ImportCompleteHandler::class )
    ->catch( ImportFailedHandler::class )
    ->finally( ImportCleanupHandler::class )
    ->allow_failures()
    ->on_queue( 'imports' )
    ->dispatch();

$batch = Queuety::find_batch( $batch_id );

if ( null !== $batch ) {
    echo $batch->progress() . '% complete';
}

$first_job_id = Queuety::chain( [
    new FetchDataJob( $url ),
    new ProcessDataJob(),
    new NotifyCompleteJob(),
] )
    ->on_queue( 'pipeline' )
    ->catch( ChainFailedHandler::class )
    ->dispatch();

Queuety::retry( 42 );

$count = Queuety::retry_buried();

$count = Queuety::purge();     // uses QUEUETY_RETENTION_DAYS
$count = Queuety::purge( 30 ); // purge jobs older than 30 days

$stats = Queuety::stats();          // all queues
$stats = Queuety::stats( 'emails' ); // specific queue
// ['pending' => 12, 'processing' => 3, 'completed' => 150, 'failed' => 2, 'buried' => 1]

$jobs = Queuety::buried();
$jobs = Queuety::buried( 'emails' );

Queuety::pause( 'emails' );

Queuety::resume( 'emails' );

if ( Queuety::is_paused( 'emails' ) ) {
    // Queue is paused
}

$workflow_id = Queuety::workflow( 'generate_report' )
    ->then( FetchDataHandler::class )
    ->then( CallLLMHandler::class )
    ->then( FormatOutputHandler::class )
    ->dispatch( [ 'user_id' => 42 ] );

$state = Queuety::workflow_status( $workflow_id );
echo $state->name;          // 'generate_report'
echo $state->status->value; // 'running'
echo $state->current_step;  // 1
echo $state->total_steps;   // 3
echo $state->state;         // accumulated state array

Queuety::retry_workflow( $workflow_id );

Queuety::pause_workflow( $workflow_id );

Queuety::resume_workflow( $workflow_id );

Queuety::cancel_workflow( $workflow_id );

Queuety::signal( $workflow_id, 'approved' );

// With data merged into workflow state
Queuety::signal( $workflow_id, 'approved', [
    'approved_by' => 'admin@example.com',
] );

$builder = Queuety::define_workflow( 'onboarding' )
    ->then( CreateAccountHandler::class )
    ->then( SendWelcomeEmailHandler::class );

Queuety::register_workflow_template( $builder );

$workflow_id = Queuety::run_workflow( 'onboarding', [ 'email' => 'user@example.com' ] );

$registry = Queuety::workflow_templates();
$template = $registry->get( 'onboarding' ); // WorkflowTemplate or null

Queuety::schedule( 'cleanup_handler' )
    ->every( '1 hour' )
    ->on_queue( 'maintenance' );

Queuety::schedule( 'nightly_report' )
    ->cron( '0 3 * * *' )
    ->on_queue( 'reports' );

$scheduler = Queuety::scheduler();
$schedules = $scheduler->list();
$scheduler->remove( 'handler_name' );
$count = $scheduler->tick(); // manually trigger

Queuety::register( 'send_email', SendEmailHandler::class );

$count = Queuety::discover_handlers( __DIR__ . '/handlers', 'MyPlugin\\Handlers' );

$registry = Queuety::registry();

$logger = Queuety::logger();
$logs   = $logger->for_job( 42 );
$logs   = $logger->for_workflow( 7 );
$logs   = $logger->for_handler( 'send_email', 50 );
$logs   = $logger->for_event( LogEvent::Failed, 50 );
$logs   = $logger->since( new \DateTimeImmutable( '-1 hour' ), 100 );
$count  = $logger->purge( 30 );

$stats = Queuety::metrics()->handler_stats( 60 ); // last 60 minutes

$notifier = Queuety::webhook_notifier();
$id       = $notifier->register( 'job.buried', 'https://hooks.slack.com/...' );
$webhooks = $notifier->list();
$notifier->remove( $id );

$limiter = Queuety::rate_limiter();
$limiter->register( 'call_openai', 60, 60 );

$cache = Queuety::cache();
$cache->set( 'my_key', 'my_value', 60 );
$value = $cache->get( 'my_key' );

Queuety::set_cache( new RedisCache() );
Queuety::init( $connection );

define( 'QUEUETY_CACHE_TTL', 10 );

$log = Queuety::workflow_events();

$events = Queuety::workflow_timeline( $workflow_id );

$state = Queuety::workflow_state_at( $workflow_id, 2 );

$fake = Queuety::fake();
SendEmailJob::dispatch( 'user@example.com', 'Hello', 'Hi!' );
$fake->assert_pushed( SendEmailJob::class );

Queuety::reset();

interface Handler {
    public function handle( array $payload ): void;
    public function config(): array;
}

interface Step {
    public function handle( array $state ): array;
    public function config(): array;
}

namespace Queuety\Contracts;

interface Job {
    public function handle(): void;
}

namespace Queuety\Contracts;

interface Cache {
    public function get( string $key ): mixed;
    public function set( string $key, mixed $value, int $ttl = 0 ): void;
    public function delete( string $key ): void;
    public function has( string $key ): bool;
    public function add( string $key, mixed $value, int $ttl = 0 ): bool;
    public function flush(): void;
}

namespace Queuety\Contracts;

interface StreamingStep {
    public function stream( array $state, array $existing_chunks = [] ): \Generator;
    public function on_complete( array $chunks, array $state ): array;
    public function config(): array;
}

namespace Queuety\Contracts;

interface Middleware {
    public function handle( object $job, \Closure $next ): void;
}

use Queuety\Contracts\Job;
use Queuety\Dispatchable;

class SendEmailJob implements Job {
    use Dispatchable;
    // ...
}

// Dispatches a new SendEmailJob instance
SendEmailJob::dispatch( 'user@example.com', 'Subject', 'Body' );

// Conditional dispatch
SendEmailJob::dispatch_if( $user->wants_email, $user->email, 'Hello', 'Hi!' );
SendEmailJob::dispatch_unless( $maintenance_mode, $user->email, 'Hello', 'Hi!' );

// Chain from a job class
FetchDataJob::with_chain( [
    new ProcessDataJob(),
    new NotifyCompleteJob(),
] )->dispatch();

class ImportProductsJob implements Job {
    use Dispatchable;

    public int $tries = 5;
    public int $timeout = 120;
    public array $backoff = [ 10, 30, 60, 120 ];

    // ...
}

public function failed( \Throwable $exception ): void {
    error_log( "Job failed: {$exception->getMessage()}" );
}

enum Priority: int {
    case Low    = 0;
    case Normal = 1;
    case High   = 2;
    case Urgent = 3;
}

enum JobStatus: string {
    case Pending    = 'pending';
    case Processing = 'processing';
    case Completed  = 'completed';
    case Failed     = 'failed';
    case Buried     = 'buried';
}

enum WorkflowStatus: string {
    case Running        = 'running';
    case Completed      = 'completed';
    case Failed         = 'failed';
    case Paused         = 'paused';
    case WaitingSignal  = 'waiting_signal';
    case Cancelled      = 'cancelled';
}

enum BackoffStrategy: string {
    case Fixed       = 'fixed';
    case Linear      = 'linear';
    case Exponential = 'exponential';
}

enum LogEvent: string {
    case Started           = 'started';
    case Completed         = 'completed';
    case Failed            = 'failed';
    case Buried            = 'buried';
    case Retried           = 'retried';
    case WorkflowStarted   = 'workflow_started';
    case WorkflowCompleted = 'workflow_completed';
    case WorkflowFailed    = 'workflow_failed';
    case WorkflowPaused    = 'workflow_paused';
    case WorkflowResumed   = 'workflow_resumed';
    case WorkflowCancelled = 'workflow_cancelled';
    case Debug             = 'debug';
}

enum OverlapPolicy: string {
    case Allow  = 'allow';
    case Skip   = 'skip';
    case Buffer = 'buffer';
}

use Queuety\Attributes\QueuetyHandler;

#[QueuetyHandler( name: 'send_email', queue: 'emails', max_attempts: 5, needs_wordpress: true )]
class SendEmailHandler implements Handler {
    // ...
}