#!/usr/bin/env bash

# get hyprland event socket path
HIS=$HYPRLAND_INSTANCE_SIGNATURE
EVENT_SOCK="$XDG_RUNTIME_DIR/hypr/$HIS/.socket2.sock"

# fallback / error check
if [ -z "$HIS" ] || [ ! -S "$EVENT_SOCK" ]; then
  echo "Error: cannot locate Hyprland event socket at $EVENT_SOCK" >&2
  exit 1
fi

logfile="${HOME}/hypr_focus.log"

# function to handle a line from the event stream
handle_event() {
  local line="$1"
  # check for activewindow event
  if [[ $line == activewindow* ]]; then
    # format: activewindow>>CLASS,TITLE
    # strip prefix
    local payload=${line#activewindow>>}
    # split on comma (first comma)
    local cls="${payload%%,*}"
    local title="${payload#*,}"
    local ts
    ts=$(date '+%Y-%m-%d %H:%M:%S')
    echo "$ts — $title (class: $cls)" >> "$logfile"
  fi
  # optionally handle activewindowv2 if you want address instead
  # if [[ $line == activewindowv2* ]]; then
  #   ...
  # fi
}

# listen to the socket
socat -u "UNIX-CONNECT:$EVENT_SOCK" - | while IFS= read -r line; do
  handle_event "$line"
done

honestly if you're willing to do some work you can make hyprland do almost anything

**disclaimer i did not test this much

edit: forgot about the screenshot part, should be easy to add though, just add screenshotting everytime focus changes with grim or whatever

@communist @null_dot Hyprland has the screenshotting functionality builtin.

hyprctl dispatch capture window