feat: add autorefresh button to the main page (#149)

* also add configuration options and change behaviour accordingly

src/ahriman/web/views/index.py

@@ -22,6 +22,7 @@ import aiohttp_jinja2
 from typing import Any, ClassVar
 
 from ahriman.core.auth.helpers import authorized_userid
+from ahriman.core.utils import pretty_interval
 from ahriman.models.user_access import UserAccess
 from ahriman.web.apispec import aiohttp_apispec
 from ahriman.web.views.base import BaseView
@@ -37,6 +38,10 @@ class IndexView(BaseView):
             * control - HTML to insert for login control, HTML string, required
             * enabled - whether authorization is enabled by configuration or not, boolean, required
             * username - authenticated username if any, string, null means not authenticated
+        * autorefresh_intervals - auto refresh intervals, optional
+            * interval - auto refresh interval in milliseconds, integer, required
+            * is_active - is current interval active or not, boolean, required
+            * text - text representation of the interval (e.g. "30 seconds"), string, required
         * docs_enabled - indicates if api docs is enabled, boolean, required
         * index_url - url to the repository index, string, optional
         * repositories - list of repositories unique identifiers, required
@@ -66,8 +71,18 @@ class IndexView(BaseView):
             "username": auth_username,
         }
 
+        autorefresh_intervals = [
+            {
+                "interval": interval * 1000,  # milliseconds
+                "is_active": index == 0,
+                "text": pretty_interval(interval),
+            }
+            for index, interval in enumerate(self.configuration.getintlist("web", "autorefresh_intervals", fallback=[]))
+        ]
+
         return {
             "auth": auth,
+            "autorefresh_intervals": sorted(autorefresh_intervals, key=lambda interval: interval["interval"]),
             "docs_enabled": aiohttp_apispec is not None,
             "index_url": self.configuration.get("web", "index_url", fallback=None),
             "repositories": [