<?php

namespace Tests\Unit\Scheduling;

use App\Enums\AfterDue;
use App\Enums\DueMode;
use App\Enums\EventState;
use App\Models\Event;
use App\Models\User;
use App\Scheduling\DueResolver;
use App\Scheduling\QuietRule;
use Carbon\CarbonImmutable;
use Tests\TestCase; // Laravel TestCase: Eloquent date-casts need the connection grammar even in memory

class QuietRuleTest extends TestCase
{
    private User $user;
    private DueResolver $due;
    private QuietRule $rule;

    protected function setUp(): void
    {
        parent::setUp();
        $this->user = new User(['login' => 'n', 'tz' => 'UTC', 'quiet_start' => '22:00:00', 'quiet_end' => '09:00:00']);
        $this->due = new DueResolver;
        $this->rule = new QuietRule($this->due);
    }

    private function event(string $due, string $fireOn, string $time = '24:00:00'): Event
    {
        return new Event([
            'due_mode' => DueMode::Local, 'due_date' => $due, 'due_time' => $time, 'fire_on' => $fireOn,
            'after_due' => AfterDue::Keep, 'state' => EventState::Preparing, 'payload' => ['title' => 't'],
        ]);
    }

    private function at(string $s): CarbonImmutable
    {
        return CarbonImmutable::parse($s, 'UTC');
    }

    public function test_preparing_ack_is_quiet_until_next_cascade_point(): void
    {
        $e = $this->event('2026-09-30', '2026-08-31'); // точки: 30,15,7,3,1 → 31.08, 15.09, 23.09, 27.09, 29.09
        $due = $this->due->resolve($e, $this->user);

        $q = $this->rule->afterAck($e, $this->user, EventState::Preparing, $due, $this->at('2026-09-02 10:00'));
        $this->assertSame('2026-09-15 00:00', $q->format('Y-m-d H:i'));

        $q = $this->rule->afterAck($e, $this->user, EventState::Preparing, $due, $this->at('2026-09-15 10:00'));
        $this->assertSame('2026-09-23 00:00', $q->format('Y-m-d H:i'), 'на самой точке — до следующей');

        $q = $this->rule->afterAck($e, $this->user, EventState::Preparing, $due, $this->at('2026-09-29 10:00'));
        $this->assertSame('2026-09-30 00:00', $q->format('Y-m-d H:i'), 'точек больше нет — до старта дня срока');
    }

    public function test_today_ack_skips_the_next_hour(): void
    {
        $e = $this->event('2026-09-30', '2026-09-30');
        $due = $this->due->resolve($e, $this->user);

        $q = $this->rule->afterAck($e, $this->user, EventState::Today, $due, $this->at('2026-09-30 11:17'));
        $this->assertSame('2026-09-30 13:00', $q->format('Y-m-d H:i'));
    }

    public function test_overdue_ack_skips_tomorrow(): void
    {
        $e = $this->event('2026-09-30', '2026-09-30');
        $due = $this->due->resolve($e, $this->user);

        $q = $this->rule->afterAck($e, $this->user, EventState::Overdue, $due, $this->at('2026-10-05 15:00'));
        $this->assertSame('2026-10-07 00:00', $q->format('Y-m-d H:i'));
    }

    public function test_scheduled_ack_changes_nothing(): void
    {
        $e = $this->event('2026-09-30', '2026-09-30');
        $due = $this->due->resolve($e, $this->user);
        $now = $this->at('2026-09-01 15:00');

        $this->assertTrue($this->rule->afterAck($e, $this->user, EventState::Scheduled, $due, $now)->eq($now));
    }
}