<?php

declare(strict_types=1);

use App\Models\ClientTg\Campaign;
use App\Models\Tenant;
use Illuminate\Foundation\Testing\RefreshDatabase;

uses(RefreshDatabase::class);

/**
 * Статус-машина Telegram-кампании (план §Сессия 2, задача 2.1):
 *   draft → queued → running → (draft_ready | launched | failed | rejected)
 * Недопустимый переход — исключение, статус не меняется.
 */

/** Создаёт кампанию в нужном статусе без фабрики (её у ClientTg нет — зеркало СМС). */
function tgCampaign(string $status): Campaign
{
    $tenant = Tenant::factory()->create();

    return Campaign::query()->create([
        'tenant_id' => $tenant->id,
        'status' => $status,
        'ad_text' => 'Тест',
        'ord_category' => 'Размещение рекламы',
        'budget_cap_rub' => '1000.00',
        'audience_kind' => Campaign::AUDIENCE_DEALS,
        'planned_count' => 0,
        'estimated_cost_rub' => '0.00',
        'created_by' => 1,
    ]);
}

it('разрешает канонический путь draft → queued → running → draft_ready', function () {
    $c = tgCampaign(Campaign::STATUS_DRAFT);

    $c->transitionTo(Campaign::STATUS_QUEUED);
    expect($c->status)->toBe(Campaign::STATUS_QUEUED);

    $c->transitionTo(Campaign::STATUS_RUNNING);
    expect($c->status)->toBe(Campaign::STATUS_RUNNING);

    $c->transitionTo(Campaign::STATUS_DRAFT_READY);
    expect($c->status)->toBe(Campaign::STATUS_DRAFT_READY);

    // Переход персистится в БД, а не только в объекте.
    expect(Campaign::find($c->id)->status)->toBe(Campaign::STATUS_DRAFT_READY);
});

it('из running допускает launched / failed / rejected', function (string $to) {
    $c = tgCampaign(Campaign::STATUS_RUNNING);
    $c->transitionTo($to);
    expect($c->status)->toBe($to);
})->with([
    Campaign::STATUS_LAUNCHED,
    Campaign::STATUS_FAILED,
    Campaign::STATUS_REJECTED,
]);

it('запрещает перескок draft → running (минуя queued) и не меняет статус', function () {
    $c = tgCampaign(Campaign::STATUS_DRAFT);

    expect(fn () => $c->transitionTo(Campaign::STATUS_RUNNING))
        ->toThrow(DomainException::class);

    expect($c->status)->toBe(Campaign::STATUS_DRAFT);
    expect(Campaign::find($c->id)->status)->toBe(Campaign::STATUS_DRAFT);
});

it('запрещает уход из терминального статуса', function () {
    $c = tgCampaign(Campaign::STATUS_LAUNCHED);

    expect(fn () => $c->transitionTo(Campaign::STATUS_RUNNING))
        ->toThrow(DomainException::class);
});

it('canTransitionTo сообщает допустимость без броска', function () {
    $c = tgCampaign(Campaign::STATUS_QUEUED);

    expect($c->canTransitionTo(Campaign::STATUS_RUNNING))->toBeTrue()
        ->and($c->canTransitionTo(Campaign::STATUS_DRAFT_READY))->toBeFalse();
});

it('константа STATUS_CANCELLED существует и равна cancelled', function () {
    expect(Campaign::STATUS_CANCELLED)->toBe('cancelled');
});

it('разрешает отмену из draft, переход персистится в БД', function () {
    $c = tgCampaign(Campaign::STATUS_DRAFT);

    expect($c->canTransitionTo(Campaign::STATUS_CANCELLED))->toBeTrue();

    $c->transitionTo(Campaign::STATUS_CANCELLED);
    expect($c->status)->toBe(Campaign::STATUS_CANCELLED);

    expect(Campaign::find($c->id)->status)->toBe(Campaign::STATUS_CANCELLED);
});

it('разрешает отмену из queued', function () {
    $c = tgCampaign(Campaign::STATUS_QUEUED);

    expect($c->canTransitionTo(Campaign::STATUS_CANCELLED))->toBeTrue();

    $c->transitionTo(Campaign::STATUS_CANCELLED);
    expect($c->status)->toBe(Campaign::STATUS_CANCELLED);
});

it('запрещает отмену из running', function () {
    $c = tgCampaign(Campaign::STATUS_RUNNING);

    expect($c->canTransitionTo(Campaign::STATUS_CANCELLED))->toBeFalse();

    expect(fn () => $c->transitionTo(Campaign::STATUS_CANCELLED))
        ->toThrow(DomainException::class);

    expect($c->status)->toBe(Campaign::STATUS_RUNNING);
});

it('cancelled — терминальный статус', function () {
    $c = tgCampaign(Campaign::STATUS_CANCELLED);

    expect($c->canTransitionTo(Campaign::STATUS_QUEUED))->toBeFalse();

    expect(fn () => $c->transitionTo(Campaign::STATUS_QUEUED))
        ->toThrow(DomainException::class);

    expect($c->status)->toBe(Campaign::STATUS_CANCELLED);
});