#!/usr/bin/env bash

# bspc-focus
# Jump to the next window in a direction. If -m is supplied, jump to the next
# monitor in that direction.
#
# Makes switching nodes more intuitive.
#
# Usage: bspc-focus [-m] (west|south|north|east)
# Example:
#   + bspc-focus south
#   + bspc-focus -m west

set -e

leap=
if [[ $1 == -m ]]; then
    leap=1; shift
fi
dir=$1
opposite=

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

if [[ -n $leap ]]; then
    # jump to monitor in direction
    bspc monitor -f "$dir"
else
    # jump to window in direction (unless at edge of last monitor)
    if ! bspc node -f "$dir.local"; then
        if [[ $(bspc query -M -m "$dir") ]]; then
            bspc monitor -f "$dir"
            # Ensure we start at the edge of the window we arrived from
            while bspc node -f "$opposite.local"; do :; done
        fi
    fi
fi