manager

type FailPayload struct {
	Jid          string   `json:"jid"`
	ErrorMessage string   `json:"message"`
	ErrorType    string   `json:"errtype"`
	Backtrace    []string `json:"backtrace"`
}

type Manager interface {
	Push(job *client.Job) error

	// Dispatch operations:
	//
	//  - Basic dequeue
	//    - Connection sends FETCH q1, q2
	// 	 - Job moved from Queue into Working
	//  - Scheduled
	//  	 - Job Pushed into Queue
	// 	 - Job moved from Queue into Working
	//  - Failure
	//    - Job Pushed into Retries
	//  - Push
	//    - Job Pushed into Queue
	//  - Ack
	//    - Job removed from Working
	//
	// How are jobs passed to waiting workers?
	//
	// Socket sends "FETCH q1, q2, q3"
	// Connection pops each queue:
	//   store.GetQueue("q1").Pop()
	// and returns if it gets any non-nil data.
	//
	// If all nil, the connection registers itself, blocking for a job.
	Fetch(ctx context.Context, wid string, queues ...string) (*client.Job, error)

	Acknowledge(jid string) (*client.Job, error)

	Fail(fail *FailPayload) error

	WorkingCount() int

	ReapExpiredJobs(timestamp string) (int, error)

	// Purge deletes all dead jobs
	Purge() (int64, error)

	// EnqueueScheduledJobs enqueues scheduled jobs
	EnqueueScheduledJobs() (int64, error)

	// RetryJobs enqueues failed jobs
	RetryJobs() (int64, error)

	BusyCount(wid string) int

	AddMiddleware(fntype string, fn MiddlewareFunc)
}

type MiddlewareChain []MiddlewareFunc

type MiddlewareFunc func(next func() error, job *client.Job) error

type Reservation struct {
	Job    *client.Job `json:"job"`
	Since  string      `json:"reserved_at"`
	Expiry string      `json:"expires_at"`
	Wid    string      `json:"wid"`
	// contains filtered or unexported fields
}