my-default-nix-home/home-manager/home.nix

{ pkgs, tmuxPackage ? null, ... }:

let
  # Define programming language support options with comprehensive configuration
  supportedLanguages = {
    # Default languages that are always included for basic functionality
    odin = {
      enable = true;
      package = pkgs.odin;
      languageServer = pkgs.ols;
      lspName = "ols";
      description = "Odin programming language with OLS";
    };
    harper = {
      enable = true;
      package = pkgs.harper;
      languageServer = pkgs.harper;
      lspName = "harper";
      description = "Harper language with Harper Language Server";
    };
    
    # Optional languages that can be conditionally enabled
    rust = {
      enable = false;
      package = pkgs.rustc;
      languageServer = pkgs.rust-analyzer;
      lspName = "rust-analyzer";
      description = "Rust programming language with rust-analyzer";
    };
    python = {
      enable = false;
      package = pkgs.python3;
      languageServer = pkgs.python3Packages.pyright;
      lspName = "pyright";
      description = "Python programming language with Pyright";
    };
    javascript = {
      enable = false;
      package = pkgs.nodejs;
      languageServer = pkgs.nodePackages.typescript-language-server;
      lspName = "typescript-language-server";
      description = "JavaScript/TypeScript with TypeScript Language Server";
    };
    go = {
      enable = false;
      package = pkgs.go;
      languageServer = pkgs.gopls;
      lspName = "gopls";
      description = "Go programming language with gopls";
    };
    java = {
      enable = false;
      package = pkgs.openjdk;
      languageServer = pkgs.jdt.ls;
      lspName = "jdt.ls";
      description = "Java programming language with JDT Language Server";
    };
  };

  # Helper function to get activated language packages
  getActivatedLanguages = 
    builtins.filter (name: supportedLanguages.${name}.enable) (builtins.attrNames supportedLanguages);
  
  # Helper function to get all language packages for activation
  getAllLanguagePackages = 
    (builtins.map (lang: supportedLanguages.${lang}.package) (getActivatedLanguages))
    ++ (builtins.map (lang: supportedLanguages.${lang}.languageServer) (getActivatedLanguages));
  
  # Helper function to generate language server configuration sections
  generateLanguageServerConfig = 
    (builtins.concatMap (lang: 
      if supportedLanguages.${lang}.enable then
        [
          ''[[languages.${lang}]]''
          ''language-server = { name = "${supportedLanguages.${lang}.lspName}", command = "${supportedLanguages.${lang}.lspName}" }''
        ]
      else
        []
    ) (getActivatedLanguages));

  # Get all activated language servers for PATH
  getLanguageServerPaths = 
    (builtins.map (lang: "${supportedLanguages.${lang}.languageServer}/bin") (getActivatedLanguages));
  
in
{
  # Home Manager configuration for cross-platform use (WSL, Linux, Mac M1)

  # Enable Home Manager
  programs.home-manager.enable = true;

  # Package configuration - these will work across all platforms  
  home.packages = with pkgs; [
    # Core tools
    tmux
    helix
    zsh
    git
    openssh
    
    # Terminal applications  
    alacritty
    starship
    htop
    
    # Docker support
    docker-client
    docker-compose
    
    # Programming languages and language servers (default always included)
    # These are the core tools that are always enabled
    odin
    ols # Odin Language Server
    harper # Harper Language Server
    
    # Additional dev tools
    gcc
    gnumake
    curl
    wget
    jq
    ripgrep
    findutils
  ] ++ getAllLanguagePackages;

  # Zsh configuration
  programs.zsh = {
    enable = true;
    syntaxHighlighting.enable = true;
    oh-my-zsh = {
      enable = true;
      theme = "agnoster";
    };
    # Zshrc configuration
    shellAliases = {
      "ls" = "eza";
      "g" = "git";
      "docker" = "docker";
      "h" = "htop";
    };
  };

  # Tmux configuration - base settings
  programs.tmux = {
    enable = true;
    clock24 = true;
    historyLimit = 10000;
    mouse = true;
    # Basic tmux configuration file
    shell = "zsh";
    # Use the tmux package from jakehamilton/tmux
    package = tmuxPackage;
  };

  # Git configuration
  programs.git = {
    enable = true;
    userName = "Your Name";
    userEmail = "your.email@example.com";
    extraConfig = {
      core.editor = "hx";
      push.default = "current";
    };
  };

  # SSH configuration
  programs.ssh = {
    enable = true;
  };

  # Alacritty configuration - simple but functional
  programs.alacritty = {
    enable = true;
    settings = {
      font = {
        normal.family = "JetBrainsMono Nerd Font";
        size = 12.0;
      };
      colors = {
        primary = {
          background = "0x1e1e2e";
          foreground = "0xf8f8f2";
        };
        cursor = {
          text = "0x1e1e2e";
          cursor = "0xf8f8f2";
        };
        normal = {
          black = "0x1e1e2e";
          red = "0xf84a50";
          green = "0x7ab872";
          yellow = "0xf59850";
          blue = "0x5192db";
          magenta = "0xb775d9";
          cyan = "0x54cecd";
          white = "0xf8f8f2";
        };
        bright = {
          black = "0x1e1e2e";
          red = "0xf84a50";
          green = "0x7ab872";
          yellow = "0xf59850";
          blue = "0x5192db";
          magenta = "0xb775d9";
          cyan = "0x54cecd";
          white = "0xf8f8f2";
        };
      };
    };
  };

  # Starship configuration - modern prompt
  programs.starship = {
    enable = true;
    settings = {
      add_newline = false;
      command_timeout = 1000;
      format = "$all";
      right_format = "$time";
      time = {
        format = "%T";
        disabled = false;
      };
    };
  };

  # Helix - main editor with language server support  
  programs.helix = {
    enable = true;
  };

  # Create Helix config with language servers for all activated languages
  home.file.".config/helix/config.toml".text = ''
    # Helix Configuration with Language Servers

    [editor]
    theme="peachpuff"

    [editor.file-picker]
    hidden = true

    [editor]
    line-number = "relative"

    [editor.cursor-shape]
    insert = "bar"
    normal = "block"
    select = "underline"
    
    [editor.lsp]
    enable = true
    auto-start = true
    
    [language-server.harper-ls]
    command = "harper-ls"
    args = ["--stdio"]

    [language-server.harper-ls.config.harper-ls.linters]
    SpellCheck = false
    SentenceCapitalization = false

    [language-server.ols]
    command = "ols"
    args = []

    [[language]]
    name = "odin"
    language-servers = ["ols", "harper-ls"]    

    # Dynamically added language servers based on user selection
    ${builtins.concatStringsSep "\n" (generateLanguageServerConfig)}
  '';

  # Environment variables
  home.sessionVariables = {
    EDITOR = "hx";
    VISUAL = "hx";
  };

  # Ensure proper PATH for language servers
  home.sessionPath = [
    "${pkgs.odin}/bin"
    "${pkgs.ols}/bin"
    "${pkgs.harper}/bin"
    "${pkgs.docker-client}/bin"
  ] ++ getLanguageServerPaths;

  # Create directory structure for configs
  home.activation = {
    createDirs = ''
      mkdir -p $HOME/.config/helix
    '';
  };
}