#!/bin/bash
# screenrec.sh — toggle screen recording via wf-recorder.
# Press the bound key once to start (region picked via slurp): a
# "Stop Recording" button appears on the notification and the script blocks
# on it. Either clicking that button, or pressing the same keybind again,
# ends the recording.

endrec () {
    killall -s SIGINT wf-recorder
    # beacon (the notif daemon) has no dunstctl; close the "recording started"
    # card via the freedesktop CloseNotification method instead.
    [ -n "$nid" ] && gdbus call --session --dest org.freedesktop.Notifications \
        --object-path /org/freedesktop/Notifications \
        --method org.freedesktop.Notifications.CloseNotification "$nid" >/dev/null 2>&1
    notify-send "recording ended - output to $outfile"
}

mkdir -p ~/Videos
statecon=$( pidof wf-recorder )

outfile="$HOME/Videos/$(date +'%Y%m%d%H%M%S').mp4"
nid=""

if [ -z "$statecon" ]; then
    wf-recorder -g "$(slurp)" -f "$outfile" &

    # --id-fd keeps the notification id off stdout so -A's chosen action
    # (the only thing we read back) isn't mixed in with it.
    nidfile=$(mktemp)
    action=$(notify-send -u critical -t 0 --id-fd=3 \
        -A "stop=Stop Recording" \
        "recording started" "output: $outfile" 3>"$nidfile")
    nid=$(<"$nidfile")
    rm -f "$nidfile"

    [ "$action" == "stop" ] && endrec
else
    endrec
fi