queue

type Config struct {
	Backend       Type
	Store         store.Store
	LockService   LockService
	InstanceID    string
	LeaderLockTTL time.Duration // TTL for leader election lock
}

type DatabaseQueue struct {
	// contains filtered or unexported fields
}

type FilterFn func(*model.Task) (bool, int, int32)

type InfoT struct {
	Pending       []*model.Task `json:"pending"`
	WaitingOnDeps []*model.Task `json:"waiting_on_deps"`
	Running       []*model.Task `json:"running"`
	Stats         struct {
		Workers       int `json:"worker_count"`
		Pending       int `json:"pending_count"`
		WaitingOnDeps int `json:"waiting_on_deps_count"`
		Running       int `json:"running_count"`
	} `json:"stats"`
	Paused bool `json:"paused"`

} //	@name	InfoT

type LockService interface {
	AcquireLock(ctx context.Context, lockName string, ttl time.Duration) (context.Context, context.CancelFunc, error)
}

type Queue interface {
	// Push pushes a task to the tail of this queue.
	Push(c context.Context, task *model.Task) error

	// PushAtOnce pushes multiple tasks to the tail of this queue.
	PushAtOnce(c context.Context, tasks []*model.Task) error

	// Poll retrieves and removes a task head of this queue.
	Poll(c context.Context, agentID int64, f FilterFn) (*model.Task, error)

	// Extend extends the deadline for a task.
	Extend(c context.Context, agentID int64, workflowID string) error

	// Done signals the task is complete.
	Done(c context.Context, id string, exitStatus model.StatusValue) error

	// Error signals the task is done with an error.
	Error(c context.Context, id string, err error) error

	// ErrorAtOnce signals multiple done are complete with an error.
	ErrorAtOnce(c context.Context, ids []string, err error) error

	// Evict removes a pending task from the queue.
	Evict(c context.Context, id string) error

	// EvictAtOnce removes multiple pending tasks from the queue.
	EvictAtOnce(c context.Context, ids []string) error

	// Wait waits until the task is complete.
	Wait(c context.Context, id string) error

	// Reclaim re-adds a task to the running state after agent restart.
	// This is used when an agent reclaims an orphaned task that it was previously running.
	Reclaim(c context.Context, task *model.Task) error

	// Info returns internal queue information.
	Info(c context.Context) InfoT

	// GetRunningWorkflowIDs returns a list of workflow IDs that are currently running
	// This is useful for cleanup operations
	GetRunningWorkflowIDs() []string

	// Pause stops the queue from handing out new work items in Poll
	Pause()

	// Resume starts the queue again.
	Resume()

	// KickAgentWorkers kicks all workers for a given agent.
	KickAgentWorkers(agentID int64)
}

type Type string