home/modules/home/shell.nix

# Shell configuration module
#
# This module configures the shell environment including:
# - Zsh with Home Manager's programs.zsh
# - Starship prompt
# - Atuin for shell history
# - Direnv for directory-specific environments
# - Zoxide for smart directory navigation
# - Shell aliases from the chezmoi configuration
# - Environment variables
# - NVM for Node.js version management
{
  config,
  pkgs,
  lib,
  ...
}: {
  # ==========================================================================
  # Zsh Configuration
  # ==========================================================================
  programs.zsh = {
    enable = true;

    # Enable zsh completions
    enableCompletion = true;

    # Enable syntax highlighting
    syntaxHighlighting.enable = true;

    # Enable autosuggestions
    autosuggestion.enable = true;

    # History settings
    history = {
      size = 50000;
      save = 50000;
      ignoreDups = true;
      ignoreAllDups = true;
      ignoreSpace = true;
      share = true;
    };

    # Session variables (migrated from dot_zshrc and 01-env.sh)
    sessionVariables = {
      # XDG runtime directory
      XDG_RUNTIME_DIR = "\${XDG_RUNTIME_DIR:-$HOME/.cache}";

      # Locale
      LANG = "en_US.UTF-8";

      # Temporary directory
      TMPDIR = "\${TMPDIR:-/tmp}";

      # Editor (from 01-nvim.sh)
      EDITOR = "nvim";

      # GPG TTY for SSH sessions
      GPG_TTY = "$(tty)";

      # FZF Catppuccin color scheme (from dot_zshrc)
      FZF_DEFAULT_OPTS = lib.concatStringsSep " " [
        "--color=bg+:#313244,bg:#1e1e2e,spinner:#f5e0dc,hl:#f38ba8"
        "--color=fg:#cdd6f4,header:#f38ba8,info:#cba6f7,pointer:#f5e0dc"
        "--color=marker:#f5e0dc,fg+:#cdd6f4,prompt:#cba6f7,hl+:#f38ba8"
      ];

      # NVM directory
      NVM_DIR = "$HOME/.nvm";
    };

    # Shell aliases (migrated from 01-env.sh and 01-nvim.sh)
    shellAliases = {
      # Modern CLI replacements (from 01-env.sh)
      ls = "eza";
      cat = "bat";
      grep = "rg";
      diff = "delta";
      less = "bat";

      # Neovim alias (from 01-nvim.sh)
      vim = "nvim";

      # Git root navigation (from 01-env.sh)
      gr = "if [ \"`git rev-parse --show-cdup`\" != \"\" ]; then cd `git rev-parse --show-cdup`; fi";
    };

    # Additional initialization (initExtra)
    # This runs after the shell is initialized
    initContent = ''
      # Source custom env file if it exists
      [ -f ~/.env ] && source ~/.env

      # NVM initialization
      # Load NVM if installed via Homebrew
      if [ -s "/opt/homebrew/opt/nvm/nvm.sh" ]; then
        source "/opt/homebrew/opt/nvm/nvm.sh"
      fi
      # Load NVM bash completion
      if [ -s "/opt/homebrew/opt/nvm/etc/bash_completion.d/nvm" ]; then
        source "/opt/homebrew/opt/nvm/etc/bash_completion.d/nvm"
      fi

      # Pinentry configuration for SSH sessions
      if [[ -n "$SSH_CONNECTION" ]]; then
        export PINENTRY_USER_DATA="USE_CURSES=1"
      fi

      # Welcome banner (from dot_zshrc)
      # Only show if terminal is wide enough
      if [ `tput cols` -gt "70" ]; then
        function PRINT_CENTER {
          COLS=`tput cols`
          OFFSET=$(( ($COLS - $1) / 2 ))
          PRE=""
          for i in `seq $OFFSET`; do
            PRE="$PRE "
          done 
          while IFS= read -r line; do
            echo "$PRE$line"
          done <<< "$2"
        }
        PRINT_CENTER 60 "

               ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
               █░▄▄▀█▀▄▄▀█░▄▄░█▄░▄█▀▄▀██░▄░██░██░█░▄▄█░▄▄░█
               █░▀▀▄█░██░█░▀▄░██░██░█▀█░▀▀░▀█░██░█▄▄▀███▄██
               █▄█▄▄██▄▄██░▀▀░██▄███▄█████░███▄▄▄█▄▄▄█░▀▀░█
               ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
                     
                      ⣴⣶⣤⡤⠦⣤⣀⣤⠆     ⣈⣭⣿⣶⣿⣦⣼⣆          
                       ⠉⠻⢿⣿⠿⣿⣿⣶⣦⠤⠄⡠⢾⣿⣿⡿⠋⠉⠉⠻⣿⣿⡛⣦       
                             ⠈⢿⣿⣟⠦ ⣾⣿⣿⣷    ⠻⠿⢿⣿⣧⣄     
                              ⣸⣿⣿⢧ ⢻⠻⣿⣿⣷⣄⣀⠄⠢⣀⡀⠈⠙⠿⠄    
                             ⢠⣿⣿⣿⠈    ⣻⣿⣿⣿⣿⣿⣿⣿⣛⣳⣤⣀⣀   
                      ⢠⣧⣶⣥⡤⢄ ⣸⣿⣿⠘  ⢀⣴⣿⣿⡿⠛⣿⣿⣧⠈⢿⠿⠟⠛⠻⠿⠄  
                     ⣰⣿⣿⠛⠻⣿⣿⡦⢹⣿⣷   ⢊⣿⣿⡏  ⢸⣿⣿⡇ ⢀⣠⣄⣾⠄   
                    ⣠⣿⠿⠛ ⢀⣿⣿⣷⠘⢿⣿⣦⡀ ⢸⢿⣿⣿⣄ ⣸⣿⣿⡇⣪⣿⡿⠿⣿⣷⡄  
                    ⠙⠃   ⣼⣿⡟  ⠈⠻⣿⣿⣦⣌⡇⠻⣿⣿⣷⣿⣿⣿ ⣿⣿⡇ ⠛⠻⢷⣄ 
                         ⢻⣿⣿⣄   ⠈⠻⣿⣿⣿⣷⣿⣿⣿⣿⣿⡟ ⠫⢿⣿⡆     
                          ⠻⣿⣿⣿⣿⣶⣶⣾⣿⣿⣿⣿⣿⣿⣿⣿⡟⢀⣀⣤⣾⡿⠃     
      ▄▄▄ . ▌ ▐·▪  ▄▄▌    ▄▄▌ ▐ ▄▌▪  ▄▄▄▄▄ ▄ .▄      ▄• ▄▌▄▄▄▄▄
      ▀▄.▀·▪█·█▌██ ██•    ██· █▌▐███ •██  ██▪▐█ ▄█▀▄ █▪██▌•██  
      ▐▀▀▪▄▐█▐█•▐█·██ ▪   ██▪▐█▐▐▌▐█· ▐█.▪██▀▀█▐█▌.▐▌█▌▐█▌ ▐█.▪
      ▐█▄▄▌ ███ ▐█▌▐█▌ ▄  ▐█▌██▐█▌▐█▌ ▐█▌·██▌▐▀▐█▌.▐▌▐█▄█▌ ▐█▌·
       ▀▀▀ . ▀  ▀▀▀.▀▀▀    ▀▀▀▀ ▀▪▀▀▀ ▀▀▀ ▀▀▀ · ▀█▄▀▪ ▀▀▀  ▀▀▀ 

        > welcome x_x
      "
      fi
    '';

    # Profile extra (runs in .zprofile)
    profileExtra = ''
      # Add Rust/Cargo to PATH
      export PATH="/opt/homebrew/opt/rustup/bin:$PATH:$HOME/.cargo/bin"
    '';
  };

  # ==========================================================================
  # Starship Prompt
  # ==========================================================================
  programs.starship = {
    enable = true;
    enableZshIntegration = true;
    # Starship configuration can be customized here
    # settings = { };
  };

  # ==========================================================================
  # Atuin - Shell History
  # Migrated from dot_config/atuin/config.toml
  # ==========================================================================
  programs.atuin = {
    enable = true;
    enableZshIntegration = true;

    settings = {
      # Compact style for history display
      style = "compact";

      # Vim keybindings in normal mode
      keymap_mode = "vim-normal";
    };
  };

  # ==========================================================================
  # Direnv - Directory-specific environments
  # ==========================================================================
  programs.direnv = {
    enable = true;
    enableZshIntegration = true;

    # Enable nix-direnv for better Nix integration
    nix-direnv.enable = true;
  };

  # ==========================================================================
  # Zoxide - Smart directory navigation
  # ==========================================================================
  programs.zoxide = {
    enable = true;
    enableZshIntegration = true;
  };

  # ==========================================================================
  # FZF - Fuzzy finder
  # ==========================================================================
  programs.fzf = {
    enable = true;
    enableZshIntegration = true;
  };

  # ==========================================================================
  # NVM - Node Version Manager
  # ==========================================================================
  # NVM is installed via Homebrew and sourced in the shell
  # This allows managing multiple Node.js versions per project

  # ==========================================================================
  # Pyenv - Python version management
  # ==========================================================================
  programs.pyenv = {
    enable = true;
    enableZshIntegration = true;
  };
}