<?php

declare(strict_types=1);

namespace Monitor\Api\Tests\Repository;

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

final class SystemRepositoryTest extends TestCase
{
    private SystemRepository $repository;

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

    public function testReportStatusInsertsSystem(): void
    {
        $system = $this->repository->reportStatus('srv1', ['status' => 'ok', 'name' => 'Server 1']);

        self::assertSame('ok', $system['status']);
        self::assertSame('api', $system['source']);
    }

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

        $this->repository->reportStatus('srv1', ['status' => 'unknown']);
    }

    public function testReportStatusUpdatesExistingSystem(): void
    {
        $this->repository->reportStatus('srv1', ['status' => 'ok']);
        $updated = $this->repository->reportStatus('srv1', ['status' => 'error', 'detail' => 'Timeout']);

        self::assertSame('error', $updated['status']);
        self::assertSame('Timeout', $updated['detail']);
    }

    public function testImportLegacyRowsDoesNotOverwriteApiSourcedSystem(): void
    {
        $this->repository->reportStatus('srv1', ['status' => 'ok']);

        $this->repository->importLegacyRows([
            ['id' => 'srv1', 'name' => 'srv1', 'status' => 'error', 'detail' => '1.2.3.4', 'last_check_at' => '2026-01-01 00:00'],
        ]);

        $system = $this->repository->find('srv1');
        self::assertSame('ok', $system['status']);
        self::assertSame('api', $system['source']);
    }

    public function testImportLegacyRowsCreatesNewLegacySystem(): void
    {
        $this->repository->importLegacyRows([
            ['id' => 'srv2', 'name' => 'srv2', 'status' => 'ok', 'detail' => '1.2.3.5', 'last_check_at' => '2026-01-01 00:00'],
        ]);

        $system = $this->repository->find('srv2');
        self::assertNotNull($system);
        self::assertSame('legacy', $system['source']);
    }

    public function testAllOrdersErrorsFirstAndLimitsToNineTiles(): void
    {
        for ($i = 0; $i < 12; $i++) {
            $this->repository->reportStatus('srv' . $i, ['status' => 'ok']);
        }
        $this->repository->reportStatus('broken', ['status' => 'error']);

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

        self::assertCount(SystemRepository::MAX_TILES, $all);
        self::assertSame('error', $all[0]['status']);
    }

    public function testFingerprintChangesWhenStatusIsReported(): void
    {
        $before = $this->repository->fingerprint();
        $this->repository->reportStatus('srv1', ['status' => 'ok']);

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