From 95e289d82da392096c87861856b4d5fb97b619f4 Mon Sep 17 00:00:00 2001
From: Aaron van Geffen <aaron@aaronweb.net>
Date: Sun, 5 Nov 2017 16:47:32 +0100
Subject: [PATCH] Introduce an overview of all albums for admins.

---
 controllers/ManageAlbums.php | 135 +++++++++++++++++++++++++++++++++++
 models/Dispatcher.php        |   2 +-
 templates/AdminBar.php       |   1 +
 3 files changed, 137 insertions(+), 1 deletion(-)
 create mode 100644 controllers/ManageAlbums.php

diff --git a/controllers/ManageAlbums.php b/controllers/ManageAlbums.php
new file mode 100644
index 0000000..e0e262b
--- /dev/null
+++ b/controllers/ManageAlbums.php
@@ -0,0 +1,135 @@
+<?php
+/*****************************************************************************
+ * ManageAlbums.php
+ * Contains the controller for admin album management.
+ *
+ * Kabuki CMS (C) 2013-2017, Aaron van Geffen
+ *****************************************************************************/
+
+class ManageAlbums extends HTMLController
+{
+	public function __construct()
+	{
+		// Ensure it's just admins at this point.
+		if (!Registry::get('user')->isAdmin())
+			throw new NotAllowedException();
+
+		$options = [
+			'columns' => [
+				'id_album' => [
+					'value' => 'id_tag',
+					'header' => 'ID',
+					'is_sortable' => true,
+				],
+				'tag' => [
+					'header' => 'Album',
+					'is_sortable' => true,
+					'parse' => [
+						'link' => BASEURL . '/editalbum/?id={ID_TAG}',
+						'data' => 'tag',
+					],
+				],
+				'slug' => [
+					'header' => 'Slug',
+					'is_sortable' => true,
+					'parse' => [
+						'link' => BASEURL . '/editalbum/?id={ID_TAG}',
+						'data' => 'slug',
+					],
+				],
+				'count' => [
+					'header' => '# Photos',
+					'is_sortable' => true,
+					'value' => 'count',
+				],
+			],
+			'start' => !empty($_GET['start']) ? (int) $_GET['start'] : 0,
+			'sort_order' => !empty($_GET['order']) ? $_GET['order'] : null,
+			'sort_direction' => !empty($_GET['dir']) ? $_GET['dir'] : null,
+			'title' => 'Manage albums',
+			'no_items_label' => 'No albums meet the requirements of the current filter.',
+			'items_per_page' => 9999,
+			'base_url' => BASEURL . '/managealbums/',
+			'get_data' => function($offset = 0, $limit = 9999, $order = '', $direction = 'up') {
+				if (!in_array($order, ['id_tag', 'tag', 'slug', 'count']))
+					$order = 'tag';
+				if (!in_array($direction, ['up', 'down']))
+					$direction = 'up';
+
+				$db = Registry::get('db');
+				$res = $db->query('
+					SELECT *
+					FROM tags
+					WHERE kind = {string:album}
+					ORDER BY id_parent, {raw:order}',
+					[
+						'order' => $order . ($direction == 'up' ? ' ASC' : ' DESC'),
+						'album' => 'Album',
+					]);
+
+				$albums_by_parent = [];
+				while ($row = $db->fetch_assoc($res))
+				{
+					if (!isset($albums_by_parent[$row['id_parent']]))
+						$albums_by_parent[$row['id_parent']] = [];
+
+					$albums_by_parent[$row['id_parent']][] = $row + ['children' => []];
+				}
+
+				$albums = self::getChildrenRecursively(0, 0, $albums_by_parent);
+				$rows = self::flattenChildrenRecursively($albums);
+
+				return [
+					'rows' => $rows,
+					'order' => $order,
+					'direction' => ($direction == 'up' ? 'up' : 'down'),
+				];
+			},
+			'get_count' => function() {
+				return 9999;
+			}
+		];
+
+		$table = new GenericTable($options);
+		parent::__construct('Album management - Page ' . $table->getCurrentPage() .' - ' . SITE_TITLE);
+		$this->page->adopt(new TabularData($table));
+	}
+
+	private static function getChildrenRecursively($id_parent, $level, &$albums_by_parent)
+	{
+		$children = [];
+		if (!isset($albums_by_parent[$id_parent]))
+			return $children;
+
+		foreach ($albums_by_parent[$id_parent] as $child)
+		{
+			if (isset($albums_by_parent[$child['id_tag']]))
+				$child['children'] = self::getChildrenRecursively($child['id_tag'], $level + 1, $albums_by_parent);
+
+			$child['tag'] = ($level ? str_repeat('—', $level * 2) . ' ' : '') . $child['tag'];
+			$children[] = $child;
+		}
+
+		return $children;
+	}
+
+	private static function flattenChildrenRecursively($albums)
+	{
+		if (empty($albums))
+			return [];
+
+		$rows = [];
+		foreach ($albums as $album)
+		{
+			$rows[] = array_intersect_key($album, array_flip(['id_tag', 'tag', 'slug', 'count']));
+			if (!empty($album['children']))
+			{
+				$children = self::flattenChildrenRecursively($album['children']);
+				foreach ($children as $child)
+					$rows[] = array_intersect_key($child, array_flip(['id_tag', 'tag', 'slug', 'count']));
+			}
+		}
+
+		return $rows;
+	}
+}
diff --git a/models/Dispatcher.php b/models/Dispatcher.php
index c47e9df..29151bb 100644
--- a/models/Dispatcher.php
+++ b/models/Dispatcher.php
@@ -16,7 +16,7 @@ class Dispatcher
 			'edituser' => 'EditUser',
 			'login' => 'Login',
 			'logout' => 'Logout',
-			'managecomments' => 'ManageComments',
+			'managealbums' => 'ManageAlbums',
 			'manageerrors' => 'ManageErrors',
 			'managetags' => 'ManageTags',
 			'manageusers' => 'ManageUsers',
diff --git a/templates/AdminBar.php b/templates/AdminBar.php
index cc1e447..57a4953 100644
--- a/templates/AdminBar.php
+++ b/templates/AdminBar.php
@@ -15,6 +15,7 @@ class AdminBar extends SubTemplate
 		echo '
 			<div id="admin_bar">
 				<ul>
+					<li><a href="', BASEURL, '/managealbums/">Albums</a></li>
 					<li><a href="', BASEURL, '/managetags/">Tags</a></li>
 					<li><a href="', BASEURL, '/manageusers/">Users</a></li>
 					<li><a href="', BASEURL, '/manageerrors/">Errors [', ErrorLog::getCount(), ']</a></li>';