#!/bin/sh
set -e

SWAY_BIN=${SWAY_BIN:-/usr/bin/sway}
SWAY_ARGS=${SWAY_ARGS:-}
SWAY_USER=${SWAY_USER:-robert}
sway_user_id=$(id -u "${SWAY_USER}")
SWAY_TTY=${SWAY_TTY:-7}
MANUAL=

export XDG_RUNTIME_DIR=/run/user/"${sway_user_id}"
source /home/"${SWAY_USER}"/.config/sway/env

while getopts ":dcDmh" o; do
    case $o in
        d) SWAY_ARGS="$SWAY_ARGS --debug" ;;
        D)
            export XDG_RUNTIME_DIR=/tmp/sway-run-debug
            [ ! -d "${XDG_RUNTIME_DIR}" ] && mkdir "${XDG_RUNTIME_DIR}" && chmod 700 "${XDG_RUNTIME_DIR}"
            ;;
        c) SWAY_ARGS="${SWAY_ARGS} --config /home/${SWAY_USER}/.config/sway/simple.conf --debug" ;;
        m) MANUAL=1 ;;
        h) echo "usage: $0 [-dcDLh]"; exit 0 ;;
        *) echo "unknown flag: $o" 1>&2
    esac
done
shift $((OPTIND-1))

ts="$(date -u --rfc-3339=seconds | tr ' ' 'T')"
log=/var/log/sway/${ts}.log

if [ -n "${MANUAL}" ]; then
    cat <<EOF | doas sh -s
# prepare tty
chown "$SWAY_USER" "/dev/tty${SWAY_TTY}"
chmod 600 "/dev/tty${SWAY_TTY}"
# launch sway on new tty
su --preserve-environment --login --command \
    "openvt --switch --console ${SWAY_TTY} -- dbus-run-session ${SWAY_BIN} -Ddamage=rerender ${SWAY_ARGS} 1>&2 2>${log}" \
    "${SWAY_USER}"
EOF
else
    exec dbus-run-session "${SWAY_BIN}" -Ddamage=rerender ${SWAY_ARGS} $@ 1>&2 2>"${log}"
    # exec "${SWAY_BIN}" -Ddamage=rerender ${SWAY_ARGS} $@ 1>&2 2>"${log}"
fi