<?php

declare(strict_types=1);

namespace Monitor\Api\Tests\Repository;

use InvalidArgumentException;
use Monitor\Api\Db\Database;
use Monitor\Api\Repository\EventRepository;
use PHPUnit\Framework\TestCase;

final class EventRepositoryTest extends TestCase
{
    private EventRepository $repository;

    protected function setUp(): void
    {
        $this->repository = new EventRepository(Database::inMemory());
    }

    public function testCreateStoresEvent(): void
    {
        $event = $this->repository->create([
            'system_id' => 'srv1',
            'name' => 'Ping',
            'message' => 'Host nicht erreichbar',
            'severity' => 'error',
        ]);

        self::assertSame('error', $event['severity']);
        self::assertSame('srv1', $event['system_id']);
    }

    public function testCreateRejectsInvalidSeverity(): void
    {
        $this->expectException(InvalidArgumentException::class);

        $this->repository->create(['name' => 'X', 'message' => 'Y', 'severity' => 'info']);
    }

    public function testLatestReturnsNewestFirst(): void
    {
        $this->repository->create(['name' => 'A', 'message' => 'a', 'severity' => 'warning', 'occurred_at' => '2026-01-01T00:00:00Z']);
        $this->repository->create(['name' => 'B', 'message' => 'b', 'severity' => 'error', 'occurred_at' => '2026-01-02T00:00:00Z']);

        $latest = $this->repository->latest();

        self::assertSame('B', $latest[0]['name']);
        self::assertSame('A', $latest[1]['name']);
    }

    public function testLatestRespectsDefaultLimitOfFive(): void
    {
        for ($i = 0; $i < 10; $i++) {
            $this->repository->create([
                'name' => 'Event ' . $i,
                'message' => 'msg',
                'severity' => 'warning',
                'occurred_at' => sprintf('2026-01-01T00:00:%02dZ', $i),
            ]);
        }

        self::assertCount(EventRepository::DEFAULT_LIMIT, $this->repository->latest());
    }

    public function testLatestClampsLimitToAtLeastOne(): void
    {
        $this->repository->create(['name' => 'A', 'message' => 'a', 'severity' => 'warning']);

        self::assertCount(1, $this->repository->latest(0));
    }

    public function testFingerprintChangesWhenAnEventIsCreated(): void
    {
        $before = $this->repository->fingerprint();
        $this->repository->create(['name' => 'A', 'message' => 'a', 'severity' => 'warning']);

        self::assertNotSame($before, $this->repository->fingerprint());
    }
}