rewrite: New Pomodoro Timer system.

src/modules/pomodoro/settings.py

@@ -0,0 +1,47 @@
+from settings import ModelData
+from settings.groups import SettingGroup
+from settings.setting_types import ChannelSetting
+
+from core.data import CoreData
+from babel.translator import ctx_translator
+
+from . import babel
+
+_p = babel._p
+
+
+class TimerSettings(SettingGroup):
+    class PomodoroChannel(ModelData, ChannelSetting):
+        setting_id = 'pomodoro_channel'
+        _event = 'guildset_pomodoro_channel'
+
+        _display_name = _p('guildset:pomodoro_channel', "pomodoro_channel")
+        _desc = _p(
+            'guildset:pomodoro_channel|desc',
+            "Default central notification channel for pomodoro timers."
+        )
+        _long_desc = _p(
+            'guildset:pomodoro_channel|long_desc',
+            "Pomodoro timers which do not have a custom notification channel set will send "
+            "timer notifications in this channel. "
+            "If this setting is not set, pomodoro notifications will default to the "
+            "timer voice channel itself."
+        )
+        _model = CoreData.Guild
+        _column = CoreData.Guild.pomodoro_channel.name
+
+        @property
+        def update_message(self) -> str:
+            t = ctx_translator.get().t
+            value = self.value
+            if value is not None:
+                resp = t(_p(
+                    'guildset:pomodoro_channel|set_response|set',
+                    "Pomodoro timer notifications will now default to {channel}"
+                )).format(channel=value.mention)
+            else:
+                resp = t(_p(
+                    'guildset:pomodoro_channel|set_response|unset',
+                    "Pomodoro timer notifications will now default to their voice channel."
+                ))
+            return resp