#!/usr/bin/env bash

# bspc-swap
# swaps current window with the next window in a direction. If -m is set, moves
# window to the next monitor in that direction.
#
# Makes swapping nodes more intuitive.
#
# Usage: bspc-swap (west|south|north|east) (1|0)
# Example:
#   + bspc-swap south
#   + bspc-swap -m west

set -e

leap=
if [[ $1 == -m ]]; then
    leap=1
    dir=$2
else
    dir=$1
fi

case $dir in west|south|north|east) ;;
    *) >&2 echo "Not a valid direction: $dir"
        exit 1
esac

if [[ -n $leap ]]; then
    # move window to monitor in direction
    old_id=$(bspc query -N -n focused)
    if [[ $(bspc query -M -m "$dir") ]]; then
        bspc node -m "$dir"
        bspc node -f "$old_id"
    fi
else
    # move window in direction
    old_id=$(bspc query -N -n focused)
    if bspc node -s "$dir.local"; then
        bspc node -f "$old_id"
    elif [[ -n $(bspc query -M -m "$dir") ]]; then
        bspc node -m "$dir"
        bspc node -f "$old_id"
    fi
fi