From 4a40b41f386af23da54cd35b8abac1f27c8e5ef7 Mon Sep 17 00:00:00 2001
From: "David T. Sadler" <davidtsadler@googlemail.com>
Date: Mon, 8 Nov 2021 20:50:15 +0000
Subject: Filter by tag

---
 public/css/site.css            |  5 +++++
 src/DTS/BookmarkRepository.php | 13 +++++++++++++
 src/templates/index.php        |  9 +++++++--
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/public/css/site.css b/public/css/site.css
index 6204f7b..e689de7 100644
--- a/public/css/site.css
+++ b/public/css/site.css
@@ -58,6 +58,7 @@ a.no-decoration:before {
     content: "";
 }
 
+ul,
 ol {
     list-style-type: none;
     padding: 0;
@@ -102,6 +103,10 @@ button {
     text-align: center;
 }
 
+.tag {
+    color: #86EFAC;
+}
+
 @media (min-width: 1536px) {
     section {
         width: 80%;
diff --git a/src/DTS/BookmarkRepository.php b/src/DTS/BookmarkRepository.php
index 01f6de4..fde8510 100644
--- a/src/DTS/BookmarkRepository.php
+++ b/src/DTS/BookmarkRepository.php
@@ -12,6 +12,8 @@ class BookmarkRepository implements \Iterator
 
     private array $repository = [];
 
+    private array $tags = [];
+
     private int $position = 0;
 
     function __construct(string $pathToRepository)
@@ -75,6 +77,11 @@ class BookmarkRepository implements \Iterator
         return false;
     }
 
+    public function tags(): array
+    {
+        return $this->tags;
+    }
+
     public function current(): mixed
     {
         return $this->repository[$this->position];
@@ -122,8 +129,14 @@ class BookmarkRepository implements \Iterator
             $bookmark->addedAt = $data[3];
 
             $this->repository[] = $bookmark;
+
+            $this->tags[] = $bookmark->tag;
         }
 
+        $this->tags = array_filter(array_unique($this->tags));
+
+        sort($this->tags);
+
         fclose($fp);
     }
 
diff --git a/src/templates/index.php b/src/templates/index.php
index c046e6c..796bc26 100644
--- a/src/templates/index.php
+++ b/src/templates/index.php
@@ -15,11 +15,16 @@
             <?php } ?>
             <a href="/create">Add Bookmark</a>
             <h2>Tags</h2>
-            <a href="/">All</a>
+            <ul>
+                <a href="/">All</a>
+                <?php foreach($bookmarks->tags() as $tag) { ?>
+                    <li><a href="/?tag=<?php echo htmlentities($tag); ?>"><?php echo $tag; ?></a></li>
+                <?php } ?>
+            </ul>
             <h2>Bookmarks</h2>
             <ol>
                 <?php foreach ($bookmarks as $bookmark) { ?>
-                    <li><a href="<?php echo htmlentities($bookmark->url); ?>"><?php echo (new DateTime($bookmark->addedAt))->format('Y-m-d'); ?> - <?php echo $bookmark->title != '' ? htmlentities($bookmark->title) : htmlentities($bookmark->url); ?></a> | <a class="no-decoration" href="/edit?id=<?php echo $bookmark->id; ?>">Edit</a> | <a class="no-decoration" href="/delete/confirm?id=<?php echo $bookmark->id; ?>">Delete</a></li>
+                    <li><a href="<?php echo htmlentities($bookmark->url); ?>"><?php echo (new DateTime($bookmark->addedAt))->format('Y-m-d'); ?> - <?php echo $bookmark->title != '' ? htmlentities($bookmark->title) : htmlentities($bookmark->url); ?></a> | <?php if ($bookmark->tag) { ?><a class="no-decoration tag" href="/?tag=<?php echo htmlentities($bookmark->tag); ?>"><?php echo htmlentities($bookmark->tag); ?></a> | <?php } ?><a class="no-decoration" href="/edit?id=<?php echo $bookmark->id; ?>">Edit</a> | <a class="no-decoration" href="/delete/confirm?id=<?php echo $bookmark->id; ?>">Delete</a></li>
                 <?php } ?>
             </ol>
             <p>Copyright © 2021 David T. Sadler.</p>
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