[mod] engine piped: split into two dedicated engiens for video & music

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

searx/engines/piped.py

@@ -9,6 +9,29 @@ design.  `Piped’s architecture`_ consists of 3 components:
 
 .. _Piped’s architecture: https://docs.piped.video/docs/architecture/
 
+Configuration
+=============
+
+The :py:obj:`backend_url` and :py:obj:`frontend_url` has to be set in the engine
+named `piped` and are used by all piped engines
+
+.. code:: yaml
+
+  - name: piped
+    engine: piped
+    piped_filter: videos
+    ...
+    frontend_url: https://..
+    backend_url:
+      - https://..
+      - https://..
+
+  - name: piped.music
+    engine: piped
+    network: piped
+    shortcut: ppdm
+    piped_filter: music_songs
+    ...
 """
 
 from __future__ import annotations
@@ -16,6 +39,7 @@ from __future__ import annotations
 import time
 import random
 from urllib.parse import urlencode
+import datetime
 from dateutil import parser
 
 # about
@@ -29,7 +53,7 @@ about = {
 }
 
 # engine dependent config
-categories = ["videos", "music"]
+categories = []
 paging = False
 
 # search-url
@@ -50,17 +74,29 @@ frontend_url: str = "https://piped.video"
 .. _Piped-Frontend: https://github.com/TeamPiped/Piped
 """
 
-content_filter = 'videos'
-"""Content filter ``music_albums`` or ``videos``"""
+piped_filter = 'all'
+"""Content filter ``music_songs`` or ``videos``"""
+
+
+def _backend_url() -> str:
+    from searx.engines import engines  # pylint: disable=import-outside-toplevel
+
+    url = engines['piped'].backend_url  # type: ignore
+    if isinstance(url, list):
+        url = random.choice(url)
+    return url
+
+
+def _frontend_url() -> str:
+    from searx.engines import engines  # pylint: disable=import-outside-toplevel
+
+    return engines['piped'].frontend_url  # type: ignore
+
 
 def request(query, params):
-    if isinstance(backend_url, list):
-        base_url = random.choice(backend_url)
-    else:
-        base_url = backend_url
 
     query = urlencode({'q': query})
-    params["url"] = base_url + f"/search?{query}&filter={content_filter}"
+    params["url"] = _backend_url() + f"/search?{query}&filter={piped_filter}"
 
     return params
 
@@ -73,17 +109,27 @@ def response(resp):
     for result in search_results:
         publishedDate = parser.parse(time.ctime(result.get("uploaded", 0) / 1000))
 
-        results.append(
-            {
+        item = {
             # the api url differs from the frontend, hence use piped.video as default
-                "url": frontend_url + result.get("url", ""),
+            "url": _frontend_url() + result.get("url", ""),
             "title": result.get("title", ""),
-                "content": result.get("shortDescription", ""),
-                "template": "videos.html",
             "publishedDate": publishedDate,
-                "iframe_src": frontend_url + '/embed' + result.get("url", ""),
-                "thumbnail": result.get("thumbnail", ""),
+            "iframe_src": _frontend_url() + '/embed' + result.get("url", ""),
         }
-        )
+
+        if piped_filter == 'videos':
+            item["template"] = "videos.html"
+            item["content"] = result.get("shortDescription", "")
+            item["thumbnail"] = result.get("thumbnail", "")
+
+        elif piped_filter == 'music_songs':
+            item["template"] = "default.html"
+            item["img_src"] = result.get("thumbnail", "")
+            item["content"] = result.get("uploaderName", "")
+            length = result.get("duration")
+            if length:
+                item["length"] = datetime.timedelta(seconds=length)
+
+        results.append(item)
 
     return results

searx/settings.yml

@@ -1137,16 +1137,26 @@ engines:
 
   - name: piped
     engine: piped
+    shortcut: ppd
+    categories: videos
+    piped_filter: videos
+    timeout: 3.0
+
+    # URL to use as link and for embeds
+    frontend_url: https://srv.piped.video
     # Instance will be selected randomly, for more see https://piped-instances.kavin.rocks/
     backend_url:
       - https://pipedapi.kavin.rocks
       - https://pipedapi-libre.kavin.rocks
       - https://pipedapi.adminforge.de
-    # URL to use as link and for embeds
-    frontend_url: https://srv.piped.video
-    shortcut: ppd
+
+  - name: piped.music
+    engine: piped
+    network: piped
+    shortcut: ppdm
+    categories: music
+    piped_filter: music_songs
     timeout: 3.0
-    disabled: true
 
   - name: piratebay
     engine: piratebay