From a6965c49d642d57d0f8c7190b2db1877500c1854 Mon Sep 17 00:00:00 2001
From: Pavel Kvach <pavel.kvach@gmail.com>
Date: Sun, 17 Mar 2024 00:59:47 +0200
Subject: [PATCH] admin: Add support for comment search by URL

Closes https://github.com/isso-comments/isso/issues/642
---
 isso/css/admin.css        | 34 ++++++++++++++++++++++++++++++++++
 isso/db/comments.py       | 12 +++++++++---
 isso/templates/admin.html | 10 ++++++++++
 isso/views/comments.py    | 26 ++++++++++++++++++++++----
 4 files changed, 75 insertions(+), 7 deletions(-)

diff --git a/isso/css/admin.css b/isso/css/admin.css
index 3f694c34f..e834545a8 100644
--- a/isso/css/admin.css
+++ b/isso/css/admin.css
@@ -126,6 +126,40 @@ a {
   float: left;
   margin-left: 2em;
 }
+
+.search {
+  float: right;
+}
+
+.search .search__input {
+  margin: 0 .3em;
+  padding: .3em 10px;
+  width: 18em;
+  border-radius: 3px;
+  background-color: #fff;
+  border: 1px solid rgba(0, 0, 0, 0.2);
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
+}
+.search .search__input:focus {
+  outline: 2px solid #3584e4;
+}
+
+.search .search__button {
+  margin: 0 .3em;
+  padding: .3em;
+  border-radius: 2px;
+  border: 1px solid #ccc;
+  background-color: #ddd;
+  cursor: pointer;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
+}
+.search .search__button:hover {
+  background-color: #ccc;
+}
+.search .search__button:active {
+  background-color: #bbb;
+}
+
 .editable {
   border: 1px solid #aaa;
   border-radius: 5px;
diff --git a/isso/db/comments.py b/isso/db/comments.py
index 603799243..9a0edddbb 100644
--- a/isso/db/comments.py
+++ b/isso/db/comments.py
@@ -167,7 +167,7 @@ def count_modes(self):
         return dict(comment_count)
 
     def fetchall(self, mode=5, after=0, parent='any', order_by='id',
-                 limit=100, page=0, asc=1):
+                 limit=100, page=0, asc=1, comment_id=None):
         """
         Return comments for admin with :param:`mode`.
         """
@@ -182,8 +182,14 @@ def fetchall(self, mode=5, after=0, parent='any', order_by='id',
         sql = ['SELECT ' + sql_comments_fields + ', ' + sql_threads_fields + ' '
                'FROM comments INNER JOIN threads '
                'ON comments.tid=threads.id '
-               'WHERE comments.mode = ? ']
-        sql_args = [mode]
+               'WHERE ']
+
+        if comment_id:
+            sql.append('comments.id = ? ')
+            sql_args = [comment_id]
+        else:
+            sql.append('comments.mode = ? ')
+            sql_args = [mode]
 
         if parent != 'any':
             if parent is None:
diff --git a/isso/templates/admin.html b/isso/templates/admin.html
index 908947b2a..a6220301b 100644
--- a/isso/templates/admin.html
+++ b/isso/templates/admin.html
@@ -71,6 +71,16 @@ <h2>Administration</h2>
               </span>
             </a>
           {% endfor %}
+          <div class="search">
+            <form action="/admin/" method="get">
+              <input type="hidden" name="mode" value="0" />
+              <label>Comment URL
+                <input type="search" class="search__input" name="comment_url" value="{{comment_url}}" spellcheck="false"
+                  required placeholder="https://example.com/demo/#isso-1" />
+              </label>
+              <button type="submit" class="search__button">Search</button>
+            </form>
+          </div>
         </div>
     </div>
     <div id="isso-root">
diff --git a/isso/views/comments.py b/isso/views/comments.py
index 3e31f2293..ab9709d13 100644
--- a/isso/views/comments.py
+++ b/isso/views/comments.py
@@ -1376,6 +1376,8 @@ def login(self, env, req):
         Comment ordering
     @apiQuery {Number{0,1}} [asc=0]
         Ascending
+    @apiQuery {String} comment_url
+        Search comment by URL
 
     @apiExample {curl} Listing of published comments:
         curl 'https://comments.example.com/admin/?mode=1&page=0&order_by=modified&asc=1' -b cookie.txt
@@ -1396,10 +1398,25 @@ def admin(self, env, req):
         order_by = req.args.get('order_by', 'created')
         asc = int(req.args.get('asc', 0))
         mode = int(req.args.get('mode', 2))
-        comments = self.comments.fetchall(mode=mode, page=page,
-                                          limit=page_size,
-                                          order_by=order_by,
-                                          asc=asc)
+        comment_url = req.args.get('comment_url', '')
+
+        # Search for a specific comment by URL
+        if comment_url:
+            try:
+                # Parse the comment URL to extract the comment ID from the fragment
+                parsed_url = urlparse(comment_url)
+                fragment = parsed_url.fragment
+                comment_id = int(fragment.split('-')[-1])
+
+                comments = self.comments.fetchall(comment_id=comment_id, limit=1)
+            except Exception:
+                # If the URL is malformed or the comment does not exist
+                comments = []
+        else:
+            comments = self.comments.fetchall(mode=mode, page=page,
+                                              limit=page_size,
+                                              order_by=order_by,
+                                              asc=asc)
         comments_enriched = []
         for comment in list(comments):
             comment['hash'] = self.isso.sign(comment['id'])
@@ -1411,6 +1428,7 @@ def admin(self, env, req):
                                conf=self.conf, max_page=max_page,
                                counts=comment_mode_count,
                                order_by=order_by, asc=asc,
+                               comment_url=comment_url,
                                isso_host_script=isso_host_script)
     """
     @api {get} /latest latest