<?php

namespace Automad\System;

use Automad\Core\FileSystem;
use Automad\Core\Str;
use Automad\Models\Page;

/**
 * The Theme type is a custom data type that stores all meta data of an installed theme.
 *
 * @author Marc Anton Dahmen
 * @copyright Copyright (c) 2018-2023 by Marc Anton Dahmen - https://marcdahmen.de
 * @license MIT license - https://automad.org/license
 */
class Theme
{
	/** The theme author. */
	public string $author;

	/** The theme description. */
	public string $description = '';

	/** The theme license. */
	public string $license = '';

	/** A multidimensional mask array. */
	public array $masks = array();

	/** The theme name. */
	public string $name;

	/** The theme path. */
	public string $path;

	/** The theme readme url. */
	public string $readme = '';

	/** The templates array. */
	public array $templates = array();

	/** The tooltips array. */
	public array $tooltips = array();

	/** The theme version. */
	public string $version = '';


	/**
	 * The constructor.
	 *
	 * @param string $themeJSON
	 * @param array $composerInstalled
	 */
	public function __construct(string $themeJSON, array $composerInstalled)
	{
		$json = false;
		$path = Str::stripStart(dirname($themeJSON), AM_BASE_DIR . AM_DIR_PACKAGES . '/');

		$defaults = array(
			'name' => $path,
			'description' => false,
			'author' => false,
			'version' => false,
			'license' => false,
			'masks' => array(),
			'tooltips' => array(),
			'readme' => 'https://github.com/marcantondahmen/automad/tree/master/packages/' . $path . '#readme'
		);

		// Get Composer version.
		if (array_key_exists($path, $composerInstalled)) {
			$package = array_intersect_key(
				$composerInstalled[$path],
				array_flip(array('version', 'support'))
			);

			$package['readme'] = $package['support']['source'] . '#readme';
		} else {
			$package = array();
		}

		// Decode JSON file.
		if (is_readable($themeJSON)) {
			$json = @json_decode(file_get_contents($themeJSON), true);
		}

		if (!is_array($json)) {
			$json = array();
		}

		// Get templates.
		$templates = FileSystem::glob(dirname($themeJSON) . '/*.php');

		// Remove the 'page not found' template from the array of templates.
		$templates = array_filter($templates, function ($file) {
			return false === in_array(basename($file), array(Page::TEMPLATE_NAME_404 . '.php'));
		});

		// Reindex array in order to force correct JSON encoding.
		$templates = array_values($templates);

		$data = array_merge(
			$defaults,
			$json,
			$package
		);

		$this->author = $data['author'];
		$this->description = $data['description'];
		$this->license = $data['license'];
		$this->masks = $data['masks'];
		$this->name = $data['name'];
		$this->path = $path;
		$this->readme = $data['readme'];
		$this->templates = $templates;
		$this->tooltips = $data['tooltips'];
		$this->version = $data['version'];
	}


	/**
	 * Get the UI mask (page or shared) for hiding variables in the dashboard.
	 *
	 * @param string $mask "page" or "shared"
	 * @return array The mask array
	 */
	public function getMask(string $mask)
	{
		if (array_key_exists($mask, $this->masks)) {
			return $this->masks[$mask];
		}

		return array();
	}


	/**
	 * Return the tooltip for the requested variable name (key in the data array).
	 *
	 * @param string $key
	 * @return string The tooltip text
	 */
	public function getTooltip(string $key)
	{
		if (array_key_exists($key, $this->tooltips)) {
			return $this->tooltips[$key];
		}

		return '';
	}
}
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