#!/usr/bin/env bash
# Stage 50 — apply the Catppuccin Macchiato theme to everything that needs
#            a runtime nudge rather than a config file.
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"

log "Theming"

require_not_root

GTK_THEME_NAME="catppuccin-macchiato-mauve-standard+default"
ICON_THEME="Papirus-Dark"
CURSOR_THEME="catppuccin-macchiato-dark-cursors"

# --- verify the themes actually landed ------------------------------------
theme_exists() {
  local name="$1" kind="$2"   # kind: themes | icons
  [[ -d "/usr/share/$kind/$name" || -d "$HOME/.local/share/$kind/$name" || -d "$HOME/.$kind/$name" ]]
}

if theme_exists "$GTK_THEME_NAME" themes; then
  ok "GTK theme found: $GTK_THEME_NAME"
else
  warn "GTK theme '$GTK_THEME_NAME' not installed"
  # The AUR package name for the accent may differ; fall back to whatever
  # catppuccin-macchiato theme is present so apps are not left on Adwaita.
  found="$(find /usr/share/themes "$HOME/.local/share/themes" -maxdepth 1 \
            -iname 'catppuccin-macchiato*' -printf '%f\n' 2>/dev/null | sort | head -n1 || true)"
  if [[ -n "$found" ]]; then
    warn "using '$found' instead — updating the GTK settings files"
    GTK_THEME_NAME="$found"
    if [[ "$DRY_RUN" != "1" ]]; then
      sed -i "s/^gtk-theme-name=.*/gtk-theme-name=$GTK_THEME_NAME/" \
        "$HOME/.config/gtk-3.0/settings.ini" "$HOME/.config/gtk-4.0/settings.ini" 2>/dev/null || true
      sed -i "s/^gtk-theme-name=.*/gtk-theme-name=\"$GTK_THEME_NAME\"/" \
        "$HOME/.gtkrc-2.0" 2>/dev/null || true
    fi
  fi
fi

theme_exists "$ICON_THEME" icons   || warn "icon theme '$ICON_THEME' not installed"
theme_exists "$CURSOR_THEME" icons || warn "cursor theme '$CURSOR_THEME' not installed"

# --- Papirus folders in Catppuccin colours --------------------------------
if have papirus-folders; then
  step "recolouring Papirus folders (mauve)"
  run sudo papirus-folders -C cat-macchiato-mauve --theme Papirus-Dark >/dev/null 2>&1 \
    || warn "papirus-folders failed; folders keep the stock colour"
fi

# --- default cursor theme (used by the root window and non-GTK apps) ------
step "setting the default X cursor theme"
if [[ "$DRY_RUN" != "1" ]]; then
  mkdir -p "$HOME/.icons/default"
  cat > "$HOME/.icons/default/index.theme" <<INI
[Icon Theme]
Name=Default
Comment=Default cursor theme
Inherits=$CURSOR_THEME
INI
fi
ok "cursor theme set to $CURSOR_THEME"

# --- dconf/gsettings, for the handful of apps that ignore settings.ini ----
if have gsettings; then
  step "applying gsettings desktop preferences"
  run gsettings set org.gnome.desktop.interface gtk-theme        "$GTK_THEME_NAME" 2>/dev/null || true
  run gsettings set org.gnome.desktop.interface icon-theme       "$ICON_THEME"     2>/dev/null || true
  run gsettings set org.gnome.desktop.interface cursor-theme     "$CURSOR_THEME"   2>/dev/null || true
  run gsettings set org.gnome.desktop.interface font-name        "Inconsolata Nerd Font 11" 2>/dev/null || true
  run gsettings set org.gnome.desktop.interface monospace-font-name "Inconsolata Nerd Font 11" 2>/dev/null || true
  run gsettings set org.gnome.desktop.interface color-scheme     "prefer-dark"     2>/dev/null || true
fi

# --- reload anything already running --------------------------------------
if [[ -n "${DISPLAY:-}" && "$DRY_RUN" != "1" ]]; then
  step "reloading the live session"
  xrdb -merge "$HOME/.Xresources" 2>/dev/null || true
  have i3-msg  && i3-msg reload  >/dev/null 2>&1 || true
  have dunstctl && dunstctl reload >/dev/null 2>&1 || true
  [[ -x "$HOME/.config/polybar/launch.sh" ]] && "$HOME/.config/polybar/launch.sh" || true
fi

ok "theming applied"