#!/bin/bash
# Copyright 2023 - 2025, project-repo, sodface and the cagebreak contributors
# SPDX-License-Identifier: MIT
#
# Execute this script if you want to take a screenshot.
# Please supply your chosen cropping/editing tool as a
# command-line argument. The filepath to the temporary
# file will be given as an argument to your command.
#
# Example:
# screenshot_script "gwenview"

named_pipe_send="$(mktemp -u)"
named_pipe_recv="$(mktemp -u)"
mkfifo "${named_pipe_send}"
mkfifo "${named_pipe_recv}"
nc -U "${CAGEBREAK_SOCKET}" < "${named_pipe_send}" > "${named_pipe_recv}"&
# The file descriptor 3 is set up to send commands to cagebreak and file
# descriptor 4 can be used to read events. Notice that events will pile up in
# file descriptor 4, so it is a good idea to continuously read from it or to
# clear it before starting a new transaction.
exec 3>"${named_pipe_send}"
exec 4<"${named_pipe_recv}"
# When the script exits, the os will clean up the pipe
rm "${named_pipe_recv}"
rm "${named_pipe_send}"

if [[ ${#} -lt 1 ]]
then
        echo "Expected a single command line argument specifying the command to edit the screenshot."
        exit 1
fi

edit_cmd="${1}"

echo "dump" >&3
IFS= read -r -d $'\0' event <&4

co="$(echo "${event:6}"|jq -r ".curr_output")"
tmpfile="$(mktemp)"
grim -t png -o "${co}" "${tmpfile}"
bash -c "${edit_cmd} \"${tmpfile}\""
wl-copy < "${tmpfile}"
rm "${tmpfile}"