{ options, config, osConfig, lib, pkgs, namespace, ... }:

with lib; with lib.${namespace}; let
  cfg = config.${namespace}.desktop.components.fcitx5;
  oscfg = osConfig.${namespace}.hardware.keyboard.jp;
  desktop = config.${namespace}.desktop;
  impermanence = config.${namespace}.impermanence;
in {
  options.${namespace}.desktop.components.fcitx5 = with types; {
    enable = mkEnableOption "fcitx5 theming";
  };

  config = mkIf (cfg.enable && oscfg.enable) {
    #TODO: investigate generating config files instead of persisting
    home.persistence.${impermanence.location} = {
      directories = [
        ".config/fcitx"
        ".config/fcitx5"
      ];
    };

    xdg.dataFile."fcitx5/themes/nix-theme/theme.conf".source = let
      c = desktop.theme.colors;
    in (pkgs.formats.ini {}).generate "fcitx5-theme.conf" {
      "Metadata" = {
        Name = "nix-theme";
        Author = "CartConnoisseur";
        Description = "Theme generated by NixOS";
        Version = 1;
      };

      "InputPanel" = {
        NormalColor = "#${c.fg}";
        HighlightColor = "#${c.fg}";
        HighlightBackgroundColor = "#00000000";
        HighlightCandidateColor = "#${c.bg}";

        FullWidthHighlight = true;
        PageButtonAlignment = "Last Candidate";
      };

      "InputPanel/Background" = {
        Color = "#${c.bg}";
        BorderColor = "#${c.fg1}";
        BorderWidth = 2;
      };

      # "InputPanel/Background/Margin" = {
      #   Left = 10;
      #   Right = 10;
      #   Top = 10;
      #   Bottom = 10;
      # };

      "InputPanel/Highlight" = {
        Color = "#${c.fg}";
        BorderWidth = 0;
      };

      "InputPanel/Highlight/Margin" = {
        Left = 2;
        Right = 2;
        Top = 2;
        Bottom = 2;
      };

      "InputPanel/ContentMargin" = {
        Left = 2;
        Right = 2;
        Top = 2;
        Bottom = 2;
      };

      "InputPanel/TextMargin" = {
        Left = 5;
        Right = 5;
        Top = 5;
        Bottom = 5;
      };
    };
  };
}