lock

#!/bin/bash

# attempts to handle differences between how i like macOS/Linux locking

# Open the screensaver with `lock` (for use with hotkey daemon)
# note - should set preferences to lock the screen after 5s of screensaver
# location of app changes in High Sierra, this should be robust
_darwin_lock () {
    local SYS_LIB="/System/Library"
    local SIERRA_FALLBACK="$SYS_LIB/Frameworks/ScreenSaver.framework/Versions/Current/Resources/ScreenSaverEngine.app"
    local HIGH_SIERRA_SCRSVR="$SYS_LIB/CoreServices/ScreenSaverEngine.app"

    [[ -r $HIGH_SIERRA_SCRSVR ]] && SCREEN_ENGINE=$HIGH_SIERRA_SCRSVR || SCREEN_ENGINE=$SIERRA_FALLBACK
	open -a $SCREEN_ENGINE
}

init_filenames() {
	#$1 resolution

	# create folder in ~/.cache/i3lock directory
	res_folder="$HOME/.cache/i3lock/$1"
	folder="$HOME/.cache/i3lock/current"
        echo "Got" $@ $res_folder
	if [ ! -d  $folder -o -n "$2" ]
	then
	    rm $folder
	    ln -s $res_folder $folder
	fi

	# ratio for rectangle to be drawn for time background on lockscreen
	# Original Image
	orig_wall="$folder/wall.png"

	# Versions (from here)
	# You can use these images to set different versions as wallpaper
	# lockscreen background.
	resized="$folder/resized.png" # resized image for your resolution

	# images to be used as wallpaper
	dim="$folder/dim.png" # image with subtle overlay of black
	blur="$folder/blur.png" # blurred version
	dimblur="$folder/dimblur.png"

	# lockscreen images (images to be used as lockscreen background)
	l_resized="$folder/l_resized.png"
	l_dim="$folder/l_dim.png"
	l_blur="$folder/l_blur.png"
	l_dimblur="$folder/l_dimblur.png"
}

prelock() {
    if [ ! -z "$(pidof dunst)" ] ; then
        pkill -u "$USER" -USR1 dunst
    fi

    if [ ! -z "$(pidof rofi)" ]; then
        pkill -u "$USER" -USR1 rofi
    fi
}

lock() {
	#$1 image path
	letterEnteredColor=d23c3dff
	letterRemovedColor=d23c3dff
	passwordCorrect=00000000
	passwordIncorrect=d23c3dff
	background=00000000
	foreground=ffffffff
	i3lock \
		-t -i "$1" \
		--timepos="x+110:h-70" \
		--datepos="x+135:h-45" \
		--clock --datestr "Type password to unlock..." \
		--insidecolor=$background --ringcolor=$foreground --line-uses-inside \
		--keyhlcolor=$letterEnteredColor --bshlcolor=$letterRemovedColor --separatorcolor=$background \
		--insidevercolor=$passwordCorrect --insidewrongcolor=$passwordIncorrect \
		--ringvercolor=$foreground --ringwrongcolor=$foreground --indpos="x+280:h-70" \
		--radius=20 --ring-width=4 --veriftext="" --wrongtext="" \
		--verifcolor="$foreground" --timecolor="$foreground" --datecolor="$foreground" \
		--noinputtext="" --force-clock $lockargs
}

postlock() {
    if [ ! -z "$(pidof dunst)" ] ; then
        pkill -u "$USER" -USR2 dunst
    fi

    if [ ! -z "$(pidof rofi)" ]; then
        pkill -u "$USER" -USR2 rofi
    fi
}

rec_get_random() {
	dir="$1"
	if [ ! -d "$dir" ]; then
		user_input="$dir"
		return
	fi
	dir=($dir/*)
	dir=${dir[RANDOM % ${#dir[@]}]}
	rec_get_random "$dir"
}

_linux_lock () { lock; }

if [[ "$(uname -s)" == "Darwin" ]]; then
    _darwin_lock
else
    # does this work ?

    # find your resolution so images can be resized to match your screen resolution
    res=$(xdpyinfo | grep dimensions | sed -r 's/^[^0-9]*([0-9]+x[0-9]+).*$/\1/')
    init_filenames "$res"

    _linux_lock
fi