<?php

declare(strict_types=1);

use App\Services\Project\SupplierSnapshotGuard;
use Carbon\CarbonImmutable;

function ls(): SupplierSnapshotGuard
{
    return new SupplierSnapshotGuard;
}

it('no supplier links → not locked', function (): void {
    $r = ls()->lockState(hasLinks: false, isActive: true, pausedAt: null);
    expect($r['locked'])->toBeFalse();
    expect($r['unlock_at'])->toBeNull();
    expect($r['projected'])->toBeFalse();
});

it('active + links → locked, unlock_at projected from now', function (): void {
    $now = CarbonImmutable::parse('2026-06-22 16:00:00', 'Europe/Moscow'); // до 21:00
    $r = ls()->lockState(hasLinks: true, isActive: true, pausedAt: null, now: $now);
    expect($r['locked'])->toBeTrue();
    expect($r['projected'])->toBeTrue();
    // pause-now(16:00) → next21=22.06 21:00 → +24h = 23.06 21:00
    expect($r['unlock_at']->toIso8601String())->toBe('2026-06-23T21:00:00+03:00');
});

it('paused within grace → locked, firm unlock_at from paused_at', function (): void {
    $paused = CarbonImmutable::parse('2026-06-22 16:00:00', 'Europe/Moscow');
    $now = CarbonImmutable::parse('2026-06-22 18:00:00', 'Europe/Moscow');
    $r = ls()->lockState(hasLinks: true, isActive: false, pausedAt: $paused, now: $now);
    expect($r['locked'])->toBeTrue();
    expect($r['projected'])->toBeFalse();
    expect($r['unlock_at']->toIso8601String())->toBe('2026-06-23T21:00:00+03:00');
});

it('paused after grace → not locked', function (): void {
    $paused = CarbonImmutable::parse('2026-06-20 16:00:00', 'Europe/Moscow');
    $now = CarbonImmutable::parse('2026-06-22 18:00:00', 'Europe/Moscow'); // > grace(21.06 21:00)
    $r = ls()->lockState(hasLinks: true, isActive: false, pausedAt: $paused, now: $now);
    expect($r['locked'])->toBeFalse();
    expect($r['unlock_at'])->toBeNull();
});

it('paused but paused_at null → not locked', function (): void {
    $r = ls()->lockState(hasLinks: true, isActive: false, pausedAt: null);
    expect($r['locked'])->toBeFalse();
});