Before I screw things up

config/i3/config

@@ -398,6 +398,7 @@ exec --no-startup-id keynav # Keyboard cursor controller
 # exec --no-startup-id ~/.config/i3/ashuffle # MPD Auto-refill
 exec --no-startup-id autorandr --change # Screen configuration and everything that depends on it
 exec --no-startup-id ~/.config/i3/batteryNotify -d # Battery state notification
+exec --no-startup-id ~/.config/i3/screentime # Activity tracker
 
 set $ignore #ff00000
 

config/i3/screentime

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+
+"""
+Logs what window is in focus
+"""
+
+import csv
+import datetime
+import os
+import typing
+
+import i3ipc
+
+
+class ScreenTime:
+    FIELDS = ["date", "type", "class", "role", "instance", "title"]
+
+    def write(self, line: typing.Dict) -> None:
+        now = datetime.datetime.now()
+        line["date"] = now.timestamp()
+
+        print("WROTE", line)
+        with open(self.csv_path, 'a') as typedfd:
+            writer = csv.DictWriter(typedfd, fieldnames=self.FIELDS)
+            writer.writerow(line)
+
+    def on_window_event(self, _: i3ipc.connection.Connection,
+                        e: i3ipc.events.WindowEvent) -> None:
+        focused = self.i3.get_tree().find_focused()
+        self.write({
+            "type": "window_" + e.change,
+            "class": focused.window_class,
+            "role": focused.window_role,
+            "title": focused.window_title,
+            "instance": focused.window_instance,
+        })
+
+    def on_mode_event(self, _: i3ipc.connection.Connection,
+                      e: i3ipc.events.ModeEvent) -> None:
+        self.write({
+            "type": "mode",
+            "title": e.change
+        })
+
+    def __init__(self) -> None:
+        self.i3 = i3ipc.Connection()
+        self.i3.on(i3ipc.Event.WINDOW, self.on_window_event)
+        self.i3.on(i3ipc.Event.MODE, self.on_mode_event)
+
+        self.csv_path = os.path.join(
+            os.path.expanduser(
+                os.getenv('XDG_CACHE_PATH', '~/.cache/')),
+            'screentime.csv')
+        if not os.path.isfile(self.csv_path):
+            with open(self.csv_path, 'w') as typedfd:
+                writer = csv.DictWriter(typedfd, fieldnames=self.FIELDS)
+                writer.writeheader()
+        self.write({"type": "start"})
+
+    def main(self) -> None:
+        self.i3.main()
+
+
+if __name__ == '__main__':
+    ST = ScreenTime()
+    ST.main()