#!/bin/bash

# omarchy:summary=Show or set how see-through windows are: opaque, transparent, or glassy
# omarchy:args=[opaque|transparent|glassy]
# omarchy:examples=omarchy hyprland window transparency | omarchy hyprland window transparency glassy

TOGGLES_DIR="${XDG_STATE_HOME:-$HOME/.local/state}/omarchy/toggles/hypr"

# Opaque and glassy are toggle files loaded after every theme: opaque makes the
# windows Omarchy makes transparent solid, and glassy blurs what is behind any
# see-through window and gives terminals a see-through background. Transparent,
# the default, removes both.
current_mode() {
  if [[ -f $TOGGLES_DIR/window-opaque.lua ]]; then
    echo "opaque"
  elif [[ -f $TOGGLES_DIR/window-glassy.lua ]]; then
    echo "glassy"
  else
    echo "transparent"
  fi
}

# Save the new choice before dropping the old one, so a failed save keeps it.
save_mode() {
  if [[ $1 != "transparent" ]]; then
    mkdir -p "$TOGGLES_DIR" && cp "$OMARCHY_PATH/default/hypr/toggles/window-$1.lua" "$TOGGLES_DIR/window-$1.lua" || return 1
  fi
  local mode
  for mode in opaque glassy; do
    [[ $mode == "$1" ]] || rm -f "$TOGGLES_DIR/window-$mode.lua" || return 1
  done
}

if (( $# == 0 )); then
  current_mode
  exit 0
fi

case $1 in
  opaque) LABEL=$(omarchy-text "Opaque windows") ;;
  transparent) LABEL=$(omarchy-text "Transparent windows") ;;
  glassy) LABEL=$(omarchy-text "Glassy windows") ;;
  *)
    echo "Usage: omarchy-hyprland-window-transparency [opaque|transparent|glassy]" >&2
    exit 1
    ;;
esac

# A theme switch renders the next theme's terminal files from the saved choice
# and then replaces the current theme, so the choice and the glass written into
# the current theme are changed under its lock, or the switch could drop them.
exec 9>"${XDG_RUNTIME_DIR:-/tmp}/omarchy-theme-set.lock"
flock 9

# A choice whose glass cannot be written is taken back, so the saved choice
# is always the one on screen.
previous=$(current_mode)
save_mode "$1" || exit 1
if ! omarchy-theme-set-glass; then
  save_mode "$previous"
  omarchy-theme-set-glass
  exit 1
fi
flock -u 9

hyprctl reload >/dev/null || exit 1
omarchy-restart-terminal
omarchy-theme-set-foot
omarchy-restart-btop
omarchy-notification-send -g 󰂵 "$LABEL"