{ config, lib, ... }:

let
  nomarchyLib = import ../../lib { inherit lib; };
  themePath = ../palettes + "/${config.nomarchy.theme}";
  themeAppsPath = themePath + "/apps";
  nordAppsPath = ../../features/desktop/hyprland/themes/nord;
  hyprlandThemePath = ../../features/desktop/hyprland/themes + "/${config.nomarchy.theme}";

  # Check if theme has hyprland.conf in palette apps/ or feature themes/
  hasHyprlandConf = builtins.pathExists (themeAppsPath + "/hyprland.conf");
  hasHyprlandFeatureConf = builtins.pathExists (hyprlandThemePath + "/hyprland.conf");

  hyprlandConfSource =
    if hasHyprlandConf then themeAppsPath + "/hyprland.conf"
    else if hasHyprlandFeatureConf then hyprlandThemePath + "/hyprland.conf"
    else nordAppsPath + "/hyprland.conf";

  # Get palette for dynamic CSS generation
  palette = nomarchyLib.getPalette config.nomarchy.theme;
in
{
  xdg.configFile."nomarchy/current/theme" = {
    source = themePath;
    recursive = true;
  };

  # Generate waybar.css if it doesn't exist in the theme
  # This provides the @background and @foreground variables used by the default style
  xdg.configFile."nomarchy/current/theme/waybar.css".text = ''
    @define-color background #${palette.base00};
    @define-color foreground #${palette.base05};
    @define-color accent #${palette.base0D};
  '';

  # Per-palette kitty colors. features/apps/kitty/config/kitty.conf includes
  # this file; without it the include silently failed and kitty stayed on
  # default colors for every palette (Stylix's kitty target only kicks in
  # when programs.kitty.enable is set, which the module doesn't use).
  xdg.configFile."nomarchy/current/theme/kitty.conf".text = ''
    background           #${palette.base00}
    foreground           #${palette.base05}
    cursor               #${palette.base05}
    selection_background #${palette.base02}
    selection_foreground #${palette.base05}
    color0  #${palette.base01}
    color1  #${palette.base08}
    color2  #${palette.base0B}
    color3  #${palette.base0A}
    color4  #${palette.base0D}
    color5  #${palette.base0E}
    color6  #${palette.base0C}
    color7  #${palette.base04}
    color8  #${palette.base03}
    color9  #${palette.base08}
    color10 #${palette.base0B}
    color11 #${palette.base0A}
    color12 #${palette.base0D}
    color13 #${palette.base0E}
    color14 #${palette.base0C}
    color15 #${palette.base07}
  '';

  # Per-palette ghostty colors. features/apps/ghostty/config/config uses an
  # optional include (?-prefix) of this file; without it the include was
  # silently skipped and ghostty rendered with its built-in defaults across
  # every palette. ghostty has no Stylix target.
  xdg.configFile."nomarchy/current/theme/ghostty.conf".text = ''
    background = ${palette.base00}
    foreground = ${palette.base05}
    cursor-color = ${palette.base05}
    selection-background = ${palette.base02}
    selection-foreground = ${palette.base05}
    palette = 0=#${palette.base01}
    palette = 1=#${palette.base08}
    palette = 2=#${palette.base0B}
    palette = 3=#${palette.base0A}
    palette = 4=#${palette.base0D}
    palette = 5=#${palette.base0E}
    palette = 6=#${palette.base0C}
    palette = 7=#${palette.base04}
    palette = 8=#${palette.base03}
    palette = 9=#${palette.base08}
    palette = 10=#${palette.base0B}
    palette = 11=#${palette.base0A}
    palette = 12=#${palette.base0D}
    palette = 13=#${palette.base0E}
    palette = 14=#${palette.base0C}
    palette = 15=#${palette.base07}
  '';

  # Ensure theme-specific hyprland config exists
  # Lookup priority: palette apps/ > feature themes/ > nord fallback
  xdg.configFile."nomarchy/current/theme/apps/hyprland.conf" = lib.mkIf (!hasHyprlandConf) {
    source = if hasHyprlandFeatureConf then hyprlandThemePath + "/hyprland.conf"
             else nordAppsPath + "/hyprland.conf";
  };

  # Legacy compatibility: symlink apps/hyprland.conf to root for scripts expecting old path
  xdg.configFile."nomarchy/current/theme/hyprland.conf" = {
    source = hyprlandConfSource;
  };
  
  # Rofi fallback support
  xdg.configFile."rofi/config.rasi" = lib.mkIf (builtins.pathExists (themeAppsPath + "/rofi.rasi")) {
    source = themeAppsPath + "/rofi.rasi";
  };
  
  # Walker fallback support
  xdg.configFile."nomarchy/current/theme/apps/walker/style.css" = lib.mkIf (!builtins.pathExists (themeAppsPath + "/walker/style.css")) {
    text = ''
      * {
        color: #${palette.base05};
      }
      #window {
        background-color: #${palette.base00};
      }
      .item.active {
        background-color: #${palette.base03};
        color: #${palette.base0B};
      }
    '';
  };
  
  xdg.configFile."nomarchy/current/theme.name".text = config.nomarchy.theme;

  # Expose branding assets
  xdg.configFile."nomarchy/branding/logo.png".source = ../../core/branding/logo.png;
  xdg.configFile."nomarchy/branding/logo.txt".source = ../../core/branding/logo.txt;
  xdg.configFile."nomarchy/branding/logo.svg".source = ../../core/branding/logo.svg;
  xdg.configFile."nomarchy/branding/icon.png".source = ../../core/branding/icon.png;
  xdg.configFile."nomarchy/branding/icon.txt".source = ../../core/branding/icon.txt;
  xdg.configFile."nomarchy/branding/screensaver.txt".source = ../../core/branding/screensaver.txt;
  xdg.configFile."nomarchy/branding/about.txt".source = ../../core/branding/about.txt;

  # Expose all themes to the system via local share for script accessibility
  xdg.dataFile."nomarchy/themes".source = builtins.path {
    name = "nomarchy-themes";
    path = ../palettes;
  };

  # Expose all theme templates to the system via local share
  xdg.dataFile."nomarchy/templates".source = builtins.path {
    name = "nomarchy-templates";
    path = ../templates;
  };

  # Nautilus python extensions
  xdg.dataFile."nautilus-python/extensions/localsend.py".source = ../../core/home/config/nautilus-python/extensions/localsend.py;
}