#!/bin/sh

vertical=$(swaymsg -t get_outputs | jq ".[0].current_mode.height")
horizontal=$(swaymsg -t get_outputs | jq ".[0].current_mode.width")
scale=$(swaymsg -t get_outputs | jq ".[0].scale")
barheight=$(echo ""$scale" * 30" | bc -l)

convert "$1" -resize "$horizontal"x"$vertical"^ -gravity center \
  -extent "$horizontal"x"$vertical" ~/.config/lockwall.png
convert ~/.config/lockwall.png \
  -channel rgb \
  -brightness-contrast -20,-20 \
  +channel \
  -paint 1 \
  -noise 0x8 \
  -blur 9,9 \
  -background "#00000000" \
  -gravity North \
  -chop 0x"$barheight" \
  -gravity South \
  -extent "$horizontal"x"$vertical" \
  ~/.config/lockwall.png
convert ~/.config/lockwall.png ~/.config/lock.png \
  -gravity center \
  -composite \
  ~/.config/lockwall.png