package main

import (
	"context"

	"git.novox.be/novox/mesh-sdk/go/cli"
	"github.com/novox/mesh-host/internal/link"
	"github.com/novox/mesh-host/internal/meshcli"
)

// serveMeshCLI answers mesh-cli on this machine for as long as this engine serves (novox/hq ADR 0272): the account
// from the kernel, the line asked of the controller over the link open at the time. A socket that cannot be served
// is said once, and this engine goes on applying; mesh-cli then says the engine does not answer.
func serveMeshCLI(ctx context.Context, queue *link.Queue, say func(string)) {
	if err := meshcli.Serve(ctx, cli.Socket, forwardOver(queue), say); err != nil {
		say("mesh-cli is not answered on this machine: " + err.Error())
	}
}

// forwardOver asks the controller over the queue's link, and follows the line to what came of it.
func forwardOver(queue *link.Queue) meshcli.Forward {
	return func(ctx context.Context, asked meshcli.Asked) cli.Answer {
		return meshcli.AskTheController(ctx, queue.AskController, asked)
	}
}