# modules/theming.nix
# Visual theming: fonts, GTK/Qt themes, cursors, icons
{
  config,
  pkgs,
  lib,
  ...
}:

{
  # ═══════════════════════════════════════════════════════════════
  # FONTS
  # ═══════════════════════════════════════════════════════════════
  fonts = {
    packages = with pkgs; [
      # Your existing fonts
      jetbrains-mono
      nerd-fonts.jetbrains-mono

      # Additional fonts for full coverage
      inter # Modern UI font
      noto-fonts # Wide Unicode coverage
      noto-fonts-cjk-sans # Chinese, Japanese, Korean
      noto-fonts-color-emoji # Color emoji

      # Optional nice fonts
      source-sans # Adobe Source Sans
      source-serif # Adobe Source Serif
      source-code-pro # Adobe Source Code
      fira-code # Alternative coding font with ligatures
    ];

    fontconfig = {
      enable = true;

      # Default fonts
      defaultFonts = {
        sansSerif = [
          "Inter"
          "Noto Sans"
        ];
        serif = [ "Noto Serif" ];
        monospace = [
          "JetBrainsMono Nerd Font"
          "JetBrains Mono"
        ];
        emoji = [ "Noto Color Emoji" ];
      };

      # Font rendering settings
      hinting = {
        enable = true;
        style = "slight";
      };
      antialias = true;
      subpixel.rgba = "rgb";
    };
  };

  # ═══════════════════════════════════════════════════════════════
  # GTK THEME
  # ═══════════════════════════════════════════════════════════════
  environment.systemPackages = with pkgs; [
    # GTK themes
    adw-gtk3 # GTK3 theme matching libadwaita
    adwaita-icon-theme # GNOME icons (needed for many apps)

    # Icon theme
    papirus-icon-theme # Modern, flat icons

    # Qt theming
    libsForQt5.qt5ct # Qt5 configuration tool
    kdePackages.qt6ct # Qt6 configuration tool

    # Theme tools
    dconf-editor # Edit GNOME/GTK settings
    nwg-look # GTK settings editor for Wayland
  ];

  # ═══════════════════════════════════════════════════════════════
  # CURSOR & ICON PATHS
  # ═══════════════════════════════════════════════════════════════
  # NOTE: Session variables (GTK_THEME, XCURSOR_*, QT_QPA_PLATFORMTHEME)
  # are consolidated in desktop.nix

  # Ensure cursor themes are found
  environment.pathsToLink = [ "/share/icons" ];

  # ═══════════════════════════════════════════════════════════════
  # GTK SETTINGS (DCONF)
  # ═══════════════════════════════════════════════════════════════
  # These can be overridden by the user with nwg-look or dconf-editor
  # Default theme settings are applied per-user
}