<?php

namespace App\Support;

use App\Models\Project;

/**
 * Simple, reversible internal lifecycle: Design, Ready, Live, Retired. This is
 * distinct from Etsy's own listing state; moving a project to Live never
 * publishes or mutates anything upstream. The only guarded transition is into
 * Live, which requires every relevant (non-detached) listing mapping to carry
 * an active release — a single unreleased mapping blocks Live, not just the
 * absence of all of them.
 */
class ProjectLifecycle
{
    public static function canMoveToLive(Project $project): bool
    {
        $relevant = $project->listingLinks()->whereNull('detached_at');

        return $relevant->exists() && $relevant->clone()->whereNull('live_release_id')->doesntExist();
    }
}