#!/bin/bash

  TIMEOUT=720
  WALLPAPER=$(find $HOME/Pictures/Wallpapers/ -name '*' | awk '!/.git/' | tail -n +2 | shuf -n 1)
  PREVIOUS=$WALLPAPER
  wallpaperDir=$HOME/Pictures/Wallpapers/
  wallpaperGit=$(grep url $wallpaperDir/.git/config | awk '{print $3}')
  
  #echo $WALLPAPER

  if [ -d $wallpaperDir ]; then
    num_files=$(ls -1 $wallpaperDir | wc -l)

    if [ $num_files -lt 1 ]; then
      notify-send -t 9000 "The wallpaper folder is expected to have more than 1 image. Exiting Wallsetter."
      exit
    else
      cd $wallpaperDir
      if [ -d ".git" ]; then
        git pull
      else
        notify-send -t 9000 "The wallpaper directory is expected to be a Git repository. Exiting Wallsetter."
        exit
      fi
    fi
  else
    /usr/bin/git clone $wallpaperGit $wallpaperDir
    chown -R $USER:ganome $wallpaperDir
  fi
  while true;
  do
    if [ "$WALLPAPER" == "$PREVIOUS" ]; then
      cd $wallpaperDir
      WALLPAPER=$(find $wallpaperDir -name '*' | awk '!/.git/' | tail -n +2 | shuf -n 1)
      WALLPAPER2=$(find $wallpaperDir -name '*' | awk '!/.git/' | tail -n +2 | shuf -n 1)
    else
      PREVIOUS=$WALLPAPER
      /usr/bin/swww img -o DP-1 --transition-type random --transition-step 16 --transition-fps 255 "$WALLPAPER"
      /usr/bin/swww img -o HDMI-A-1 --transition-type random --transition-step 16 --transition-fps 255 "$WALLPAPER2"
      sleep $TIMEOUT
    fi
  done