From 9896106f1cebe78d81cd40aa93da24f54282e4db Mon Sep 17 00:00:00 2001
From: Marcin Kurczewski <mkurczew@gmail.com>
Date: Wed, 9 Oct 2013 17:50:07 +0200
Subject: [PATCH] Added tag list; upload: tags autocompletion

---
 config.ini                        |  1 +
 public_html/media/js/upload.js    | 17 ++++++++++++++---
 src/Controllers/TagController.php | 28 ++++++++++++++++++++++++++--
 src/Models/Privilege.php          |  1 +
 src/Views/tag-list.phtml          | 13 +++++++++++++
 5 files changed, 55 insertions(+), 5 deletions(-)
 create mode 100644 src/Views/tag-list.phtml

diff --git a/config.ini b/config.ini
index bd754ac5..2a72a763 100644
--- a/config.ini
+++ b/config.ini
@@ -46,3 +46,4 @@ listPosts.unsafe=registered
 listUsers=registered
 listComments=registered
 retrievePost=anonymous
+listTags=anonymous
diff --git a/public_html/media/js/upload.js b/public_html/media/js/upload.js
index 23643cb7..54f1f301 100644
--- a/public_html/media/js/upload.js
+++ b/public_html/media/js/upload.js
@@ -1,8 +1,12 @@
 $(function()
 {
-	var handler = $('#file-handler');
-	var tags = []; //todo: retrieve tags
+	var tags = [];
+	$.getJSON('/tags?json', function(data)
+	{
+		tags = data['tags'];
+	});
 
+	var handler = $('#file-handler');
 	handler.on('dragenter', function(e)
 	{
 		$(this).addClass('active');
@@ -146,9 +150,16 @@ $(function()
 				postDom.removeAttr('id');
 				postDom.data('file', file);
 				$('.file-name strong', postDom).text(file.name);
-				$('.tags input', postDom).tagit({caseSensitive: true, availableTags: tags, placeholderText: $('.tags input').attr('placeholder')});
 				$('.posts').append(postDom);
 
+				postDom.show();
+				var tagItOptions =
+				{	caseSensitive: true,
+					availableTags: tags,
+					placeholderText: $('.tags input').attr('placeholder')
+				};
+				$('.tags input', postDom).tagit(tagItOptions);
+
 				if (!file.type.match('image.*'))
 				{
 					continue;
diff --git a/src/Controllers/TagController.php b/src/Controllers/TagController.php
index 4072d010..4940c76f 100644
--- a/src/Controllers/TagController.php
+++ b/src/Controllers/TagController.php
@@ -4,9 +4,33 @@ class TagController
 	/**
 	* @route /tags
 	*/
-	public static function listAction()
+	public function listAction()
 	{
 		$this->context->subTitle = 'tags';
-		throw new Exception('Not implemented');
+
+		PrivilegesHelper::confirmWithException($this->context->user, Privilege::ListTags);
+
+		$dbQuery = R::$f->begin();
+		$dbQuery->select('tag.name, COUNT(1) AS count');
+		$dbQuery->from('tag');
+		$dbQuery->innerJoin('post_tag');
+		$dbQuery->on('tag.id = post_tag.tag_id');
+		$dbQuery->groupBy('tag.id');
+		$rows = $dbQuery->get();
+
+		$tags = [];
+		$tagDistribution = [];
+		foreach ($rows as $row)
+		{
+			$tags []= $row['name'];
+			$tagDistribution[$row['name']] = $row['count'];
+		}
+		array_multisort(
+			array_values($tagDistribution), SORT_DESC, SORT_NUMERIC,
+			array_keys($tagDistribution), SORT_ASC, SORT_NATURAL | SORT_FLAG_CASE,
+			$tagDistribution);
+
+		$this->context->transport->tags = $tags;
+		$this->context->transport->tagDistribution = $tagDistribution;
 	}
 }
diff --git a/src/Models/Privilege.php b/src/Models/Privilege.php
index 01f615fc..fed7b6ac 100644
--- a/src/Models/Privilege.php
+++ b/src/Models/Privilege.php
@@ -7,4 +7,5 @@ class Privilege extends Enum
 	const RetrievePost = 4;
 	const ListUsers = 5;
 	const ListComments = 6;
+	const ListTags = 7;
 }
diff --git a/src/Views/tag-list.phtml b/src/Views/tag-list.phtml
new file mode 100644
index 00000000..0190908f
--- /dev/null
+++ b/src/Views/tag-list.phtml
@@ -0,0 +1,13 @@
+<?php if (isset($this->context->transport->errorMessage)): ?>
+	<p class="alert alert-error"><?php echo $this->context->transport->errorMessage ?></p>
+<?php else: ?>
+	<ul>
+		<?php foreach ($this->context->transport->tagDistribution as $tagName => $count): ?>
+			<li>
+				<a href="<?php echo \Chibi\UrlHelper::route('post', 'list', ['query' => $tagName]) ?>">
+					<?php echo $tagName . ' (' . $count . ')' ?>
+				</a>
+			</li>
+		<?php endforeach ?>
+	</ul>
+<?php endif ?>