commit 3c151eb62bbd9e04dfbf19f0cfa904af61fb8613
Author: Patrick <patrick@maschek.info>
Date:   Wed Apr 1 01:57:39 2026 +0200

    created plugin and started tag implementation

diff --git a/src/admin/admin.php b/src/admin/admin.php
new file mode 100644
index 0000000..b4459e3
--- /dev/null
+++ b/src/admin/admin.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace TheaterGF\Core;
+
+function add_admin_menu() {
+	add_menu_page(
+		'Theatergruppe',
+		'Theatergruppe',
+		'manage_options',
+		'theatergf',
+		'TheaterGF\Core\main_settings_page_callback',
+	);
+
+	add_submenu_page(
+		'theatergf',
+		'General Settings',
+		'General',
+		'manage_options',
+		'theatergf',
+		'TheaterGF\Core\main_settings_page_callback'
+	);
+}
+
+function main_settings_page_callback() {
+    echo '<div class="wrap"><h1>Theatergruppe Gänserndorf</h1></div>';
+}
+
+
+add_action('admin_menu', 'TheaterGF\Core\add_admin_menu');
diff --git a/src/media.php b/src/media.php
new file mode 100644
index 0000000..3fab685
--- /dev/null
+++ b/src/media.php
@@ -0,0 +1,205 @@
+<?php
+
+namespace TheaterGF\Core;
+
+require_once __DIR__ . "/media-meta-box-html.php";
+
+function build_tag_name( $term ) {
+
+	if (is_array( $term )) {
+		$out = [];
+
+		foreach ( $term  as $t ) {
+			$out[] = build_tag_name($t);
+		}
+		sort($out);
+
+		return $out;
+	}
+
+    $parts = [];
+
+    while ( $term && $term->parent != 0 ) {
+        $parts[] = $term->name;
+        $term = get_term($term->parent, 'ttgf_media_tags');
+    }
+
+    if ( $term ) {
+        $parts[] = $term->name;
+    }
+
+    return implode('/', array_reverse($parts));
+}
+
+class MediaManager {
+
+	public function __construct() {
+
+		add_action('init', [ $this, 'register_structure' ]);
+
+		add_filter('attachment_fields_to_edit', [ $this, 'create_edit_media_control' ], 10, 2);
+		add_action('add_meta_boxes', [ $this, 'create_tag_management_box' ]);
+		
+		// Dont know what it does
+		add_filter( 'update_post_term_count_statuses', function( $statuses, $taxonomy ) {
+	
+			if( 'folders' === $taxonomy->name ) {
+				$statuses[] = 'inherit';
+				$statuses = array_unique( $statuses );
+			}
+			return $statuses;
+
+		}, 25, 2 );
+
+		add_action('restrict_manage_posts', [ $this, 'show_list_filter' ]);
+		add_filter('pre_get_posts', [ $this, 'apply_list_filter' ]);
+	}
+
+	public function register_structure() {
+		register_taxonomy('ttgf_media_tags', 'attachment', [
+			'labels' => [
+				'name'           => 'Tags',
+				'singular_name'  => 'Tag',
+				'search_items'   => 'Search tags',
+				'all_items'      => 'All tags',
+				'parent_item'    => 'Parent tag',
+				'edit_item'      => 'Edit tags',
+				'update_item'    => 'Update tags',
+				'add_new_item'   => 'Add new tag',
+				'new_item_name'  => 'New tag name',
+				'menu_name'      => 'Tags',
+			],
+			'hierarchical' => true,
+			'public' => false,
+			'show_ui' => false,
+			'show_admin_column' => true,
+			'rewrite' => false,
+			'update_count_callback' => '_update_generic_term_count'
+		]);
+	}
+
+	public function create_tag_management_box() {
+		add_meta_box(
+			'ttgf_media_tags_box',
+			'Tags',
+			[ $this, 'tag_management_meta_box_html' ],
+			'attachment',
+			'side'
+		);
+	}
+
+	public function tag_management_meta_box_html( $post ) {
+		$all_terms = get_terms([
+			'taxonomy' => 'ttgf_media_tags',
+			'hide_empty' => false,
+		]);
+		$all_tags = build_tag_name($all_terms);
+
+		$terms = get_the_terms($post, 'ttgf_media_tags');
+		$tags = build_tag_name($terms);
+?>
+	<h3>Assigned</h3>
+
+	<div class="ttgf_tags_container">
+		<?php foreach ( $tags as $tag ): ?>
+			<div class="ttgf_tag"><?= $tag ?></div>
+		<?php endforeach; ?>
+	</div>
+<?php
+	}
+
+	public function create_edit_media_control( $fields, $post ) {
+		
+		$terms = get_terms([ 'taxonomy' => 'ttgf_media_tags', 'hide_empty' => false ]);
+
+		$fields['ttgf_media_tags'] = [
+			'label' => 'Tags',
+			'input' => 'html',
+			'html'  => $this->_build_dropdown("attachments[{$post->ID}][ttgf_media_tags]", 
+											  array_map(function ($term) { return [ 'value' => $term->id, 'name' => $term->name ]; }, $terms), 
+											  $post->ID)
+		];
+
+		$fields['ttgf_media_hidden'] = [
+			'label' => 'Folder Attributes',
+			'input' => 'html',
+			'html'  => "<select name='attachments[{$post->ID}][ttgf_media_hidden]'><option></option><option value='hidden'>Hidden</option></select>"
+		];
+
+		return $fields;
+	}
+
+	public function show_list_filter() {
+		global $typenow;
+
+		if ( $typenow !== 'attachment' ) {
+			return;
+		}
+
+		$selected = isset( $_GET[ 'ttgf_media_folder' ] ) ? $_GET[ 'ttgf_media_folder' ] : false;
+		wp_dropdown_categories([
+			'show_option_all' => 'All folders',
+			'taxonomy'        => 'ttgf_media_folder',
+			'name'            => 'ttgf_media_folder',
+			'orderby'         => 'name',
+			'selected'        => $selected,
+			'hierarchical'    => true,
+			'value_field'     => 'name',
+			'depth'           => 3,
+			'hide_empty'      => true,
+		]);
+	
+		echo '<select name="ttgf_media_folder_filter">';
+		echo    '<option>Select Filter</option>';
+		echo    '<option value="show_hidden">Display hidden</option>';
+		echo '</select>';
+
+
+		return;
+
+		/*$terms = get_terms([ 'taxonomy' => 'ttgf_media_folder', 'hide_empty' => false ]);
+
+		echo '<select name="ttgf_media_folder_filter">';
+		echo '<option value="">All Folders</option>';
+
+		foreach ( $terms as $term ) {
+			echo "<option value='{$term->slug}'>{$term->name}</option>";
+		}
+
+		echo '</select>';*/
+	}
+
+	public function apply_list_filter( $query ) {
+		if ( ! is_admin() || $query->is_main_query() ) {
+			return;
+		}
+
+		if (!empty($_GET['media_folder_filter'])) {
+			$query->set('tax_query', [[
+				'taxonomy' => 'ttgf_media_folder',
+				'field' => 'name',
+				'terms' => $_GET['ttgf_media_folder'],
+			]]);
+		}
+
+		$show_hidden = isset($_GET['ttgf_media_folder_filter']) && $_GET['ttgf_media_folder_filter'] != "show_hidden";
+		$query->set('meta_query', [[
+			'key'       => 'ttgf_media_hidden',
+			'value'     => ( ! $show_hidden),
+			'compare'   => '!='
+		]]);
+	}
+
+	private function _build_dropdown( $name, $options, $selected, $empty = true ) {
+
+		$html_options = $empty ? '<option></option>' : '';
+		foreach ( $options as $option ) {
+			$html_options .= "<option value='{$option['value']}'" . $selected == $option['value'] ? 'selected' : '' . ">{$option['name']}</option>";
+		}
+
+		return "<select name='$name'>$html_options</select>";
+	}
+}
+
+new MediaManager();
+
diff --git a/theatergf-core.php b/theatergf-core.php
new file mode 100644
index 0000000..27f3b32
--- /dev/null
+++ b/theatergf-core.php
@@ -0,0 +1,27 @@
+<?php
+/*
+ * Plugin Name: TheaterGF Core
+ * Description: Gemeinsame Funktionalität für alle TheaterGF Plugins
+ * Author: Patrick Maschek
+ */
+
+namespace TheaterGF\Core;
+
+// protect against direct access
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+
+function plugin_activation_function() {}
+
+function plugin_deactivation_function() {}
+
+register_activation_hook(__FILE__, 'TheaterGF\Core\plugin_activation_function');
+register_deactivation_hook(__FILE__, 'TheaterGF\Core\plugin_deactivation_function');
+
+if ( is_admin() ) {
+	require_once __DIR__ . '/src/admin/admin.php';
+}
+
+require_once __DIR__ . '/src/media.php';