<?php

declare(strict_types=1);

namespace Scape\Tests;

use PHPUnit\Framework\TestCase;
use Scape\Config;

class ConfigTest extends TestCase
{
    protected function setUp(): void
    {
        // Clear environment variables before each test
        putenv('SCAPE_TEMPLATES_DIR');
        putenv('SCAPE_LAYOUTS_DIR');
        putenv('SCAPE_PARTIALS_DIR');
        putenv('SCAPE_FILTERS_DIR');
        putenv('SCAPE_MODE');
    }

    public function testDefaultValues(): void
    {
        $config = new Config();

        $this->assertEquals('production', $config->getMode());
        $this->assertEquals('./templates', $config->getTemplatesDir());
        $this->assertEquals('./templates/layouts', $config->getLayoutsDir());
        $this->assertEquals('./templates/partials', $config->getPartialsDir());
        $this->assertEquals('./filters', $config->getFiltersDir());
        $this->assertEquals('./.scape/cache', $config->getCacheDir());
    }

    public function testEnvironmentVariableOverrides(): void
    {
        putenv('SCAPE_MODE=debug');
        putenv('SCAPE_TEMPLATES_DIR=/tmp/templates');

        $config = new Config();

        $this->assertEquals('debug', $config->getMode());
        $this->assertEquals('/tmp/templates', $config->getTemplatesDir());
        // Layouts/Partials should still fall back relative to templates if not set? 
        // Or remain as defaults? Let's check spec. 
        // Spec says they are managed via env vars. We'll assume they have independent defaults.
    }

    public function testProgrammaticOverridesPrecedence(): void
    {
        putenv('SCAPE_MODE=debug');

        $config = new Config([
            'mode' => 'production',
            'templates_dir' => '/custom/path'
        ]);

        $this->assertEquals('production', $config->getMode());
        $this->assertEquals('/custom/path', $config->getTemplatesDir());
    }
}