nixos/home.shared.nix

{
  config,
  lib,
  pkgs,
  hostname,
  userConfig,
  ...
}:
let
  onePassPath =
    if pkgs.stdenv.isDarwin then
      "${userConfig.homeDirectory}/Library/Group Containers/2BUA8C4S2C.com.1password/t/agent.sock"
    else
      "${userConfig.homeDirectory}/.1password/agent.sock";
  ghosttyPkg = if pkgs.stdenv.isDarwin then pkgs."ghostty-bin" else pkgs.ghostty;
  rebuildCmd = if pkgs.stdenv.isDarwin then "darwin-rebuild" else "nixos-rebuild";
in
{
  home.stateVersion = lib.mkDefault "26.05";
  home.username = userConfig.username;
  home.homeDirectory = userConfig.homeDirectory;
  home.sessionVariables.SSH_AUTH_SOCK = onePassPath;
  home.sessionVariables.CLAUDE_CONFIG_DIR = "${config.xdg.configHome}/claude";

  home.packages = with pkgs; [
    nixd
    treefmt
    nixpkgs-fmt
    deadnix
  ];

  xdg.enable = true;
  xdg.configHome = "${config.home.homeDirectory}/.config";
  xdg.cacheHome  = "${config.home.homeDirectory}/.cache";
  xdg.dataHome   = "${config.home.homeDirectory}/.local/share";
  xdg.stateHome  = "${config.home.homeDirectory}/.config/state";
  xdg.configFile."ssh.conf".source = ./config.ssh.conf;
  xdg.configFile."1Password/ssh/agent.toml".text = ''
    [[ssh-keys]]
    item = "${userConfig._1PassKeyName}"
    vault = "${userConfig._1PassKeyVault}"
  '';

  xdg.configFile."claude/settings.json".source = pkgs.writeText "claude-settings.json" (
    builtins.toJSON {
      "$schema" = "https://json.schemastore.org/claude-code-settings.json";
      theme = "dark";
      agent = "plan";
      denyCommands = [ "code --install-extension*" ];
      additionalDirectories = [ "/tmp" ];
      autoMemoryEnabled = false;
      effortLevel = "medium";
      fastModePerSessionOptIn = true;
      feedbackSurveyRate = 0;
      model = "opusplan";
      showClearContextOnPlanAccept = false;
      statusLine = {
        type = "command";
        command = "claude-statusline prompt";
      };
    }
  );

  xdg.configFile."claude-statusline/config.toml".text = ''
    format = "$directory | $git_branch | $model | $cost | $context | $usage"
    preset = "default"

    [usage]
    disabled = false
    format = 'S: {{printf "%.0f" .BlockPct}}% ({{.BlockResets}}) | W: {{printf "%.0f" .WeeklyPct}}%'
  '';

  programs.tmux.enable = true;
  programs.fastfetch.enable = true;

  programs.zsh = {
    enable = true;
    enableCompletion = true;
    autosuggestion.enable = true;
    syntaxHighlighting.enable = true;

    shellAliases = {
      ll = "ls -l";
      gst = "git status";
      nix-update = "sudo ${rebuildCmd} switch --flake ~/nixos#${hostname}";
      home-update = "home-manager switch --flake ~/nixos#${userConfig.username}@${hostname}";
    };
  };

  programs.starship = {
    enable = true;
    enableZshIntegration = true;

    # Optional custom settings (translates to ~/.config/starship.toml)
    settings = {
      # Line 1: ➜ folder git:(branch) [status]
      format = "$character$directory$git_branch";

      # Show current directory name only
      directory = {
        style = "bold cyan";
        truncation_length = 1;
        truncate_to_repo = false;
      };

      # git:(branch) styling
      git_branch = {
        format = "[git:\\([$branch](red)\\)](bold blue) ";
      };

      # Bottom line prompt arrow
      character = {
        success_symbol = "[➜](bold green)";
        error_symbol = "[➜](bold red)";
        vicmd_symbol = "[➜](bold yellow)";
      };

      git_status = {
        disabled = false;
      };

      # Nix shell indicator module configuration
      nix_shell = {
        symbol = "❄️ ";
        format = "via [$symbol$state]($style) ";
      };
    };
  };

  programs.ssh = {
    enable = true;
    enableDefaultConfig = false;
    extraConfig = builtins.readFile ./config.ssh.conf;
    settings = {
      "*" = {
        ControlMaster = "auto";
        ControlPath = "~/.ssh/master-%r@%h:%p";
        ControlPersist = "10m";
        IdentityAgent = "\"${onePassPath}\"";
      };
    };
  };

  programs.git = {
    enable = true;
    settings = {
      user.name = userConfig.gitName;
      user.email = userConfig.gitEmail;
      init.defaultBranch = "main";
      push.autoSetupRemote = true;
      pull.rebase = true;
      core.sshCommand = "ssh";
      core.fsmonitor = true;
      core.untrackedCache = true;
      feature.manyFiles = true;
      index.version = 4;
    };
  };

  programs.ghostty = {
    enable = true;
    package = ghosttyPkg;
    enableBashIntegration = true;
    enableZshIntegration = true;
    settings = {
      macos-icon = "chalkboard";
      keybind = [
        "home=text:\\x01" # Ctrl-A -> beginning of line
        "end=text:\\x05" # Ctrl-E -> end of line
        "delete=text:\\x7f"
      ];
    };
  };
}