Move commands/util.py to util/

mautrix_telegram/util/format_duration.py

@@ -0,0 +1,34 @@
+# -*- coding: future_fstrings -*-
+# mautrix-telegram - A Matrix-Telegram puppeting bridge
+# Copyright (C) 2018 Tulir Asokan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+def format_duration(seconds):
+    def pluralize(count, singular): return singular if count == 1 else singular + "s"
+
+    def include(count, word): return f"{count} {pluralize(count, word)}" if count > 0 else ""
+
+    minutes, seconds = divmod(seconds, 60)
+    hours, minutes = divmod(minutes, 60)
+    days, hours = divmod(hours, 24)
+    parts = [a for a in [
+        include(days, "day"),
+        include(hours, "hour"),
+        include(minutes, "minute"),
+        include(seconds, "second")] if a]
+    if len(parts) > 2:
+        return "{} and {}".format(", ".join(parts[:-1]), parts[-1])
+    return " and ".join(parts)