<?php
/**
 * Test script for Markdown Parser WP
 * 
 * This script simulates the core functionality of the WordPress plugin
 * in a non-WordPress environment for testing purposes.
 */

// Load Composer autoloader
require_once __DIR__ . '/vendor/autoload.php';

use Symfony\Component\Yaml\Yaml;

// Test URL
$url = 'https://git.rpi-virtuell.de/Comenius-Institut/FOERBICO/raw/branch/main/Website/content/posts/2025-03-20-Workshop-KlimaOER/index.md';

echo "Testing Markdown Parser WP functionality...\n\n";
echo "URL: $url\n\n";

try {
    // Fetch markdown content
    echo "Fetching markdown content...\n";
    $content = file_get_contents($url);
    if ($content === false) {
        throw new Exception("Could not load file from URL.");
    }
    echo "Content fetched successfully.\n\n";
    
    // Split YAML and Markdown
    echo "Splitting YAML and Markdown content...\n";
    $parts = explode('---', $content);
    if (count($parts) < 3) {
        throw new Exception("Invalid file format - YAML header not found.");
    }
    
    $yamlContent = trim($parts[1]);
    $markdownContent = trim($parts[2]);
    echo "Content split successfully.\n\n";
    
    // Parse YAML
    echo "Parsing YAML content...\n";
    $parsedYaml = Yaml::parse($yamlContent);
    $jsonOutput = json_encode(
        $parsedYaml, 
        JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE
    );
    echo "YAML parsed successfully.\n\n";
    
    // Remove title heading
    echo "Processing markdown content...\n";
    $markdownLines = explode("\n", $markdownContent);
    foreach ($markdownLines as $key => $line) {
        if (strpos(trim($line), '# ') === 0) {
            unset($markdownLines[$key]);
            break;
        }
    }
    $cleanedMarkdown = implode("\n", $markdownLines);
    echo "Markdown processed successfully.\n\n";
    
    // Save results
    echo "Saving results to files...\n";
    file_put_contents('test-output-metadata.json', $jsonOutput);
    file_put_contents('test-output-content.md', $cleanedMarkdown);
    echo "Results saved successfully.\n\n";
    
    // Display sample output
    echo "=== JSON METADATA (SAMPLE) ===\n";
    echo substr($jsonOutput, 0, 500) . "...\n\n";
    
    echo "=== MARKDOWN CONTENT (SAMPLE) ===\n";
    echo substr($cleanedMarkdown, 0, 500) . "...\n\n";
    
    echo "Test completed successfully!\n";
    echo "Full output saved to test-output-metadata.json and test-output-content.md\n";
    
} catch (Exception $e) {
    echo "ERROR: " . $e->getMessage() . "\n";
    exit(1);
}