package broker

import "git.novox.be/novox/mesh-sdk/go/delivery"

// The view alone reads the build seats' queues (novox/hq ADR 0525 §2, issue 1887 A8a): the shared workers' counts and the
// oldest waiting ask, to show the backlog. It may not publish an ask: only the builder and the checker ask, by their seat use.
// The watchman is granted nothing here: a waiting ask has no pulse, a taken one is read from the build module's steps (issue
// 1908). Nothing is a wildcard over a stream or a worker.
const (
	// ViewModule is the module of the delivery view (mesh-delivery-view).
	ViewModule = "mesh-delivery-view"
	// BuilderModule is the module of the builder (mesh-delivery-builder).
	BuilderModule = "mesh-delivery-builder"
)

// BuildAskReads are the API subjects the builder requests when it takes over, at its start, a key naming an ask (issue
// 1910): each build seat's stream's information and its messages by sequence, to tell whether the ask is on its stream.
// Reads only: no consumer, no pull, no acknowledgement; the builder puts its asks by its seat use, as before.
func BuildAskReads() []string {
	var out []string
	for _, lang := range delivery.AskLanguages {
		if stream, err := delivery.AskStream(lang); err == nil {
			out = append(out, "$JS.API.STREAM.INFO."+stream, "$JS.API.STREAM.MSG.GET."+stream)
		}
	}
	return out
}

// BuildBacklogReads are the API subjects the view requests: the information of each build seat's stream and of each of its
// shared workers (delivery.AskStream, delivery.AskWorker), and the message of the stream by sequence. Reads only: no
// message is pulled, none acknowledged, none published.
func BuildBacklogReads() []string {
	var out []string
	for _, lang := range delivery.AskLanguages {
		stream, err := delivery.AskStream(lang)
		if err != nil {
			continue
		}
		out = append(out, "$JS.API.STREAM.INFO."+stream, "$JS.API.STREAM.MSG.GET."+stream)
		for _, kind := range delivery.AskKinds {
			if w, err := delivery.AskWorker(lang, kind); err == nil {
				out = append(out, "$JS.API.CONSUMER.INFO."+stream+"."+w)
			}
		}
	}
	return out
}