#!/bin/bash --norc
# ╭───────────────╮
# │ SWWW-settings │
# ╰───────────────╯
export SWWW_TRANSITION_FPS=60
export SWWW_TRANSITION_STEP=60
export SWWW_TRANSITION=center

# ╭───────────────────────────────────────────────────────────────────────────╮
# │ Set default excluded directories if SWWW_EXCLUDED_DIRS is not already set │
# │ Dirs to exclude: Anime, Colorful, Gaming, Gifs, Gruvbox, Logos, Muted,    │
# │ Nordic, Windoof                                                           │
# ╰───────────────────────────────────────────────────────────────────────────╯

: "${SWWW_EXCLUDED_DIRS:=Anime,Colorful,Gaming,Gifs,Logos,Nordic,Windoof}"

_swww() {
  if [ -z "$1" ]; then
    # ─< random wallpaper selection >─────────────────────────────────────────────────────────
    local wall_dir="$HOME/.wallpapers"

    # ─< Create an array of directories to exclude >──────────────────────────────────────────
    IFS=',' read -ra EXCLUDED_DIRS <<<"$SWWW_EXCLUDED_DIRS"

    # ─< Build the find command with exclusions >─────────────────────────────────────────────
    local find_cmd="find \"$wall_dir\" -type f \( -iname \"*.png\" -o -iname \"*.jpg\" -o -iname \"*.gif\" -o -iname \"*.PNG\" -o -iname \"*.JPG\" -o -iname \"*.GIF\" \) -not -path \"*/\.git/*\""

    for dir in "${EXCLUDED_DIRS[@]}"; do
      find_cmd+=" -not -path \"$wall_dir/$dir/*\""
    done

    # ─< Select a random picture >────────────────────────────────────────────────────────────
    local pic=$(eval $find_cmd | shuf -n 1)

    # ─< checking for swww >──────────────────────────────────────────────────────────────────
    if command -v swww >/dev/null 2>&1; then
      # ─< Check if swww daemon is running, start if not >─────────────────────────────────────
      if ! pgrep -x "swww" >/dev/null; then
        notify-send "SWWW" "swww not running - starting it now"
        swww-daemon
        sleep 1 # Give the daemon a second to start
        if pgrep -x "swww" >/dev/null; then
          notify-send "SWWW" "started successfully"
        else
          notify-send "ERROR" "seems like swww didn't come up as exspected"
        fi
      fi

      # ─< checking the wall_dir variable >─────────────────────────────────────────────────────
      if [[ -d "$wall_dir" ]]; then
        # ─< executing swww with the random $pic >────────────────────────────────────────────────
        swww img "$pic"
        # --transition-fps "$SWWW_TRANSITION_FPS" --transition-step "$SWWW_TRANSITION_STEP" --transition-type "$SWWW_TRANSITION"
        notify-send "󰸉 " "Changed wallpaper to $pic"
        notify-send " " "Not sourcing from: $SWWW_EXCLUDED_DIRS"
      else
        notify-send "ERROR" "$wall_dir path not found"
      fi
    else
      notify-send "ERROR" "swww was not found on the system"
    fi
  else
    if command -v swww >/dev/null 2>&1; then
      # ─< Check if swww daemon is running, start if not >─────────────────────────────────────
      if ! pgrep -x "swww" >/dev/null; then
        notify-send "SWWW" "swww not running - starting it now"
        swww-daemon
        sleep 1 # Give the daemon a second to start
        if pgrep -x "swww" >/dev/null; then
          notify-send "SWWW" "started successfully"
        else
          notify-send "ERROR" "seems like swww didn't come up as exspected"
        fi
      fi
      # ─< executing swww with the random $pic >────────────────────────────────────────────────
      swww img "$1"
      # --transition-fps "$SWWW_TRANSITION_FPS" --transition-step "$SWWW_TRANSITION_STEP" --transition-type "$SWWW_TRANSITION"
      notify-send "󰸉 " "Changed wallpaper to $1"
    else
      notify-send "ERROR" "$1 not found"
    fi
  fi

}

_swww "$@"