#!/usr/bin/env bash
# Toggle the astal-menu popup (or open it to a section). Forwards a verb to the
# resident daemon over D-Bus; if the daemon isn't running yet, starts it first.
# (No `set -e`: a non-zero `grep`/`busctl` in the wait loop is expected and must
# not abort the script before it forwards the verb.)
#
#   menu-toggle.sh                 -> --toggle (top, the default)
#   menu-toggle.sh appdrawer       -> open with the app drawer expanded
#   menu-toggle.sh left            -> toggle, sliding in from / pinned to the left
#   menu-toggle.sh toggle right    -> same, explicit verb
#   menu-toggle.sh appdrawer bottom
#
# Verbs: (toggle) | show | hide | appdrawer.  Sides: top | bottom | left | right.

BUS="eu.abdelbaki.astalmenu"
OBJ="/eu/abdelbaki/astalmenu"
APP="${HOME}/.config/astal-menu/main.py"

verb="${1:-}"; side="${2:-}"
# allow the side to be given as the sole argument (verb defaults to toggle)
case "$verb" in
    top|bottom|left|right) side="$verb"; verb="" ;;
esac

case "$verb" in
    appdrawer) VERB="--appdrawer"; ACTION="appdrawer"; HAS_PARAM=1 ;;
    show)      VERB="--show";      ACTION="show";      HAS_PARAM=1 ;;
    hide)      VERB="--hide";      ACTION="hide";       HAS_PARAM=0 ;;
    *)         VERB="--toggle";    ACTION="toggle";     HAS_PARAM=1 ;;
esac

case "$side" in
    top|bottom|left|right) SIDE=(--side "$side") ;;
    *)                     side=""; SIDE=() ;;
esac

registered() { busctl --user list 2>/dev/null | grep -q "$BUS"; }

if registered; then
    # Fast path: the daemon is already up, so activate the action directly over
    # D-Bus (~20-100ms) instead of cold-starting a second python3 + PyGObject +
    # GTK4 process (~0.5s baseline, much worse under load — observed spikes past
    # 5s) just to forward one verb via GApplication's command-line forwarding.
    if [[ $HAS_PARAM -eq 1 ]]; then
        param="[<'${side}'>]"
    else
        param="[]"
    fi
    exec gdbus call --session --dest "$BUS" --object-path "$OBJ" \
        --method org.gtk.Actions.Activate "$ACTION" "$param" "{}" >/dev/null
fi

# Not registered yet: start the daemon and wait for it to come up, then retry
# via the fast path above.
"${HOME}/.config/scripts/astal-menu-start.sh" >/dev/null 2>&1 &
for _ in $(seq 1 25); do
    if registered; then
        exec "$0" "$@"
    fi
    sleep 0.2
done

# Still not registered after 5s: fall back to becoming the primary instance
# ourselves (Gio single-instance handles the routing either way).
exec python3 "$APP" "$VERB" "${SIDE[@]}"