<?php

declare(strict_types=1);

namespace Eyrie\Tests\Loader;

use Eyrie\Loader\FileLoader;
use PHPUnit\Framework\TestCase;

class FileLoaderTest extends TestCase
{
    private string $tempDir;

    protected function setUp(): void
    {
        $this->tempDir = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'eyrie_tests_' . uniqid();
        mkdir($this->tempDir);
    }

    protected function tearDown(): void
    {
        $this->removeDirectory($this->tempDir);
    }

    public function testLoadExistingTemplate(): void
    {
        $templatePath = $this->tempDir . DIRECTORY_SEPARATOR . 'test.eyrie.php';
        file_put_contents($templatePath, 'Hello World');

        $loader = new FileLoader([$this->tempDir]);
        $this->assertEquals('Hello World', $loader->load('test'));
    }

    public function testLoadDotNotationTemplate(): void
    {
        $subDir = $this->tempDir . DIRECTORY_SEPARATOR . 'layouts';
        mkdir($subDir);
        $templatePath = $subDir . DIRECTORY_SEPARATOR . 'base.eyrie.php';
        file_put_contents($templatePath, 'Layout Content');

        $loader = new FileLoader([$this->tempDir]);
        $this->assertEquals('Layout Content', $loader->load('layouts.base'));
    }

    public function testLoadNonExistentTemplateThrowsException(): void
    {
        $loader = new FileLoader([$this->tempDir]);
        $this->expectException(\RuntimeException::class);
        $loader->load('non_existent');
    }

    public function testExists(): void
    {
        $templatePath = $this->tempDir . DIRECTORY_SEPARATOR . 'test.eyrie.php';
        file_put_contents($templatePath, 'Hello World');

        $loader = new FileLoader([$this->tempDir]);
        $this->assertTrue($loader->exists('test'));
        $this->assertFalse($loader->exists('non_existent'));
    }

    public function testIsFresh(): void
    {
        $templatePath = $this->tempDir . DIRECTORY_SEPARATOR . 'test.eyrie.php';
        file_put_contents($templatePath, 'Hello World');
        $time = time();

        $loader = new FileLoader([$this->tempDir]);
        $this->assertTrue($loader->isFresh('test', $time + 10));
        $this->assertFalse($loader->isFresh('test', $time - 10));
    }

    private function removeDirectory(string $dir): void
    {
        if (!is_dir($dir)) {
            return;
        }

        $files = array_diff(scandir($dir), ['.', '..']);
        foreach ($files as $file) {
            (is_dir("$dir/$file")) ? $this->removeDirectory("$dir/$file") : unlink("$dir/$file");
        }
        rmdir($dir);
    }
}