dotfiles/home-modules/helix.nix

{ config, pkgs, rice, ... }:

{
  home = {
    packages = with pkgs; [
      helix
      nixfmt # nix formater
      nil # nix language server
      python311Packages.python-lsp-server
    ];
    sessionVariables = {
      EDITOR = "hx";
      VISUAL = "hx";
    };
  };
  programs.helix = {
    enable = true;
    settings = {
      # theme = "base16_terminal";
      theme = "base16";
      editor = {
        cursor-shape = {
          normal = "block";
          insert = "bar";
          select = "underline";
        };
        line-number = "relative";
        color-modes = true;
        bufferline = "always";
        file-picker.hidden = false;
        middle-click-paste = false;
        cursorline = true;
        indent-guides.render = true;
        lsp.display-inlay-hints = true;
        statusline.center = [ "position-percentage" ];
        true-color = true;
        whitespace.characters = {
          newline = "↴";
          tab = "⇥";
        };
      };
    };
    languages.language = [{
      name = "nix";
    }];
    themes = {
      base16 = with rice.color; {
        "attributes" = blue.bright; 
        "comment" = {
          "fg" = white.dark;
          "modifiers" = [ "italic" ];
        };
        "constant" = cyan.bright; 
        "constant.character.escape" = yellow.bright;
        "constant.numeric" = blue.bright; 
        "constructor" = magenta.bright; 
        "debug" = yellow.dark;
        "diagnostic.modifiers" = [ "underlined" ];
        "diff.delta" = blue.bright; 
        "diff.minus" = red.bright; 
        "diff.plus" = green.bright; 
        "error" = red.bright; 
        "function" = cyan.bright; 
        "hint" = yellow.dark;
        "info" = cyan.bright; 
        "keyword" = cyan.bright;
        "label" = cyan.bright;
        "namespace" = cyan.bright;
        "operator" = magenta.bright;
        "special" = cyan.bright; 
        "string" = green.bright; 
        "type" = green.bright; 
        "variable" = blue.bright; 
        "variableother.member" = green.base; 
        "warning" = blue.bright; 

        "markup.bold" = {
          "fg" = green.bright; 
          "modifiers" = [ "bold" ];
        };
        "markup.heading" = cyan.bright; 
        "italic" = {
          "fg" = cyan.bright;
          "modifiers" = [ "italic" ];
        };
        "markup.linktext" = red.bright; 
        "markup.linkurl" = {
          "fg" = blue.bright; 
          "modifiers" = [ "underlined" ];
        };
        "markup.list" = red.bright; 
        "markup.quote" = magenta.bright; 
        "markup.raw" = green.bright; 
        "markup.strikethrough" = {
          "modifiers" = [ "crossed_out" ];
        };

        "diagnostic.hint" = {
          "underline" = { style = "curl"; };
        };
        "diagnostic.info" = {
          "underline" = { style = "curl"; };
        };
        "diagnostic.warning" = {
          "underline" = { style = "curl"; };
        };
        "diagnostic.error" = {
          "underline" = { style = "curl"; };
        };

        "ui.background" = { # general background of the editor window
          "bg" = background;
        };
        "ui.bufferline" = { # the top line ("tab"-line)
          "fg" = magenta.base;
          "bg" = black.base;
        };
        "ui.bufferline.active" = { # the active "tab"
          "fg" = background;
          "bg" = magenta.base;
          "modifiers" = [ "bold" ];
        }; 
        "ui.cursor" = { # the cursor in Normal mode
          "fg" = white.base;
          "modifiers" = [ "reversed" ];
        };
        "ui.cursorline.primary" = { # the line on which the cursor is on
          "bg" = black.base;
        };
        "ui.cursor.match" = { # Matching bracket etc.
          "bg" = green.dark;
          "modifiers" = [ "reversed" ];
        };
        "ui.gutter" = {
          "bg" = black.base;
        };
        "ui.help" = {
          "fg" = cyan.base;
          "bg" = black.base;
        };
        "ui.linenr" = {
          "fg" = white.dark;
          "bg" = black.base;
        };
        "ui.linenr.selected" = {
          "fg" = blue.bright;
          "modifiers" = [ "bold" ];
        };
        "ui.menu" = {
          "fg" = magenta.base;
          "bg" = black.base;
        };
        "ui.menu.scroll" = {
          "fg" = yellow.dark;
          "bg" = background;
        };
        "ui.menu.selected" = {
          "fg" = red.base;
          "bg" = blue.dark;
        };
        "ui.popup" = {
          "bg" = black.base;
        };
        "ui.selection" = {
          "bg" = white.dark;
        };
        "ui.selection.primary" = {
          "bg" = black.bright;
        };
        "ui.statusline" = {
          "fg" = blue.bright;
          # "bg" = black.base;
        };
        "ui.statusline.inactive" = {
          "fg" = red.bright;
          "bg" = red.dark;
        };
        "ui.statusline.insert" = {
          "fg" = green.bright;
          "bg" = green.dark;
        };
        "ui.statusline.normal" = {
          "fg" = yellow.bright;
          "bg" = yellow.dark;
        };
        "ui.statusline.select" = {
          "fg" = cyan.bright;
          "bg" = cyan.dark;
        };
        "ui.text" = magenta.base;
        "ui.text.focus" = cyan.base;
        "ui.virtual.indent-guide" = {
          "fg" = black.bright;
        };
        "ui.virtual.inlay-hint" = {
          "fg" = black.bright;
        };
        "ui.virtual.ruler" = {
          "bg" = background;
        };
        "ui.window" = {
          "bg" = background;
        };
      };
    };
  };
}