<?php
/**
 * @package    Joomla.Component.Builder
 *
 * @created    4th September, 2022
 * @author     Llewellyn van der Merwe <https://dev.vdm.io>
 * @git        Joomla Component Builder <https://git.vdm.dev/joomla/Component-Builder>
 * @copyright  Copyright (C) 2015 Vast Development Method. All rights reserved.
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace VDM\Joomla\Componentbuilder\Package\JoomlaModule\Readme;


use VDM\Joomla\Interfaces\Readme\ItemInterface;


/**
 * Compiler Joomla Module Item Readme
 * 
 * @since  5.1.1
 */
final class Item implements ItemInterface
{
	/**
	 * Generate a structured Markdown README for a Joomla Module defined in JCB.
	 *
	 * This README includes component metadata such as version, identifiers,
	 * ownership, feature toggles, licensing, and a collapsible template block.
	 *
	 * @param  object  $item  The JCB Joomla Module definition.
	 *
	 * @return string  The generated Markdown README.
	 * @since  5.1.1
	 */
	public function get(object $item): string
	{
		$readme = [];

		// Title Section
		$readme[] = '### JCB! Joomla Module';

		$name         = $item->name ?? 'error: missing name';
		$systemName   = $item->system_name ?? 'error: missing system name';
		$version      = $item->module_version ?? 'error: missing version';

		$readme[] = "# {$systemName} (v{$version})";
		$readme[] = "## {$name}";
		$readme[] = '';

		// Descriptions
		$description = trim((string) ($item->description ?? ''));
		if ($description !== '' && $description !== $systemName)
		{
			$readme[] = $description;
			$readme[] = '';
		}

		// Module Settings
		$targetArea = ((int) ($item->target ?? 1) === 2)
			? '![Admin](https://img.shields.io/badge/Admin-grey?style=flat-square)'
			: '![Site](https://img.shields.io/badge/Site-blue?style=flat-square)';

		$addReadme = ((int) ($item->addreadme ?? 0) === 1)
			? '![yes](https://img.shields.io/badge/yes-success?style=flat-square)'
			: '![no](https://img.shields.io/badge/no-blue?style=flat-square)';

		$readme[] = '### Module Settings';
		$readme[] = <<<MD
| Setting     | Value          |
|-------------|----------------|
| Target Area | {$targetArea}  |
| Add README  | {$addReadme}   |

MD;

		// Default Header Template
		if (!empty($item->default_header) && (int) ($item->add_default_header ?? 0) === 1)
		{
			$readme[] = '<details>';
			$readme[] = '<summary>Header Default Template</summary>';
			$readme[] = '';
			$readme[] = '```php';
			$readme[] = rtrim($item->default_header);
			$readme[] = '```';
			$readme[] = '';
			$readme[] = '</details>';
			$readme[] = '';
		}

		// Default Template
		if (!empty($item->default))
		{
			$readme[] = '## Default Template:';
			$readme[] = '```html';
			$readme[] = rtrim($item->default);
			$readme[] = '```';
			$readme[] = '';
		}

		// Dispatcher getLayoutData Method Code
		if (!empty($item->layout_data))
		{
			$readme[] = '<details>';
			$readme[] = '<summary>Dispatcher getLayoutData Method (J4+)</summary>';
			$readme[] = '';
			$readme[] = '```php';
			$readme[] = rtrim($item->layout_data);
			$readme[] = '```';
			$readme[] = '';
			$readme[] = '</details>';
			$readme[] = '';
		}

		// Module Code
		if (!empty($item->mod_code))
		{
			$readme[] = '<details>';
			$readme[] = '<summary>Module Code (J3)</summary>';
			$readme[] = '';
			$readme[] = '```php';
			$readme[] = rtrim($item->mod_code);
			$readme[] = '```';
			$readme[] = '';
			$readme[] = '</details>';
			$readme[] = '';
		}

		// Readme Block (if defined in module)
		if (($item->addreadme ?? 0) == 1 && !empty($item->readme))
		{
			$readme[] = '<details>';
			$readme[] = '<summary>README Template</summary>';
			$readme[] = '';
			$readme[] = '```markdown';
			$readme[] = $this->normalizeMarkdown($item->readme);
			$readme[] = '```';
			$readme[] = '';
			$readme[] = '</details>';
			$readme[] = '';
		}

		// Footer
		$readme[] = '> Display reusable content or functionality anywhere on your site with this flexible, position-ready Joomla Module built for seamless use in JCB.';
		$readme[] = '';

		$readme[] = <<<MD
### Used in [Joomla Component Builder](https://www.joomlacomponentbuilder.com) - [Source](https://git.vdm.dev/joomla/Component-Builder) - [Mirror](https://github.com/vdm-io/Joomla-Component-Builder) - [Download](https://git.vdm.dev/joomla/pkg-component-builder/releases)

---
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MD;

		return implode("\n", $readme);
	}

	/**
	 * Normalize Markdown by replacing only Markdown syntax markers:
	 * - Inline code markers: ` → [CODE]
	 * - Fenced code block markers: ``` → [CODE BLOCK]
	 *
	 * Code inside or outside those markers is untouched.
	 *
	 * @param  string  $markdown  The original Markdown content.
	 * @return string  The normalized Markdown content.
	 * @since  5.1.1
	 */
	function normalizeMarkdown(string $markdown): string
	{
		// Replace triple backticks first to avoid interfering with single replacements
		$markdown = str_replace('```', '[CODE BLOCK]', $markdown);

		// Replace single backticks (inline code)
		$markdown = str_replace('`', '[CODE]', $markdown);

		return rtrim($markdown);
	}

}

