<?php

declare(strict_types=1);

namespace Weerscherm\Tests;

use PHPUnit\Framework\TestCase;
use Weerscherm\Config;

final class ConfigTest extends TestCase
{
    private string $file;

    protected function setUp(): void
    {
        $this->file = tempnam(sys_get_temp_dir(), 'cfg');
    }

    protected function tearDown(): void
    {
        @unlink($this->file);
    }

    public function testDefaultsApplyWhenKeysAreMissing(): void
    {
        file_put_contents($this->file, '<?php return [];');
        $config = Config::load($this->file);

        self::assertSame('Europe/Berlin', $config->get('timezone'));
        self::assertSame('fixture', $config->get('data_source'));
        self::assertSame(['stations' => 300, 'measure' => 900, 'pressure' => 900, 'temperature' => 900, 'forecast' => 3600, 'radar' => 240], $config->get('cache_ttl'));
        self::assertSame([], $config->get('indoor_modules'));
        self::assertNull($config->get('netatmo_device_id'));
    }

    public function testFileValuesOverrideDefaults(): void
    {
        file_put_contents($this->file, '<?php return ["timezone" => "Europe/Amsterdam", "cache_ttl" => ["stations" => 60]];');
        $config = Config::load($this->file);

        self::assertSame('Europe/Amsterdam', $config->get('timezone'));
        self::assertSame(['stations' => 60, 'measure' => 900, 'pressure' => 900, 'temperature' => 900, 'forecast' => 3600, 'radar' => 240], $config->get('cache_ttl'));
    }

    public function testUnknownKeyReturnsGivenDefault(): void
    {
        file_put_contents($this->file, '<?php return [];');
        self::assertSame('x', Config::load($this->file)->get('nope', 'x'));
    }

    public function testFileMustReturnArray(): void
    {
        file_put_contents($this->file, '<?php return "nee";');
        $this->expectException(\RuntimeException::class);
        Config::load($this->file);
    }
}