# home-manager/fred.nix
{ config, pkgs, lib, inputs, osConfig, ... }:
let
  isDesktop = lib.elem osConfig.networking.hostName [ "FredOS-Gaming" "FredOS-Macbook" ];
in
{
  home.stateVersion = "25.11";

  home.packages = with pkgs; [
    #
  ];

  home.file.".config/nixpkgs/config.nix".text = ''
    { allowUnfree = true; }
  '';

  # Wallpaper source — consumed by stylix's image option (set in
  # settings/stylix.nix) and by quickshell's wallpaper layer.
  home.file.".local/share/backgrounds/wallpaper.png".source =
    "${inputs.self}/walls/wallpaper.png";

  # btop — stylix's btop target writes the colour theme; we keep our
  # non-colour preferences here.
  programs.btop = {
    enable = true;
    settings = {
      theme_background = false;
      vim_keys = false;
      proc_filter_kernel = true;
    };
  };

  # ── Yazi — TUI file manager, Super+E ──────────────────────────────────
  # Not themed per wallpaper, on purpose: it draws with the terminal's 16
  # ANSI colours, so it inherits ghostty's palette the instant theme-apply
  # reloads it — no per-wallpaper files, no restart, and none of the
  # full-reflow jank a GTK theme switch causes.
  #
  # It cannot drag a file into a browser: a TUI has no wayland surface, so
  # it can never start a drag. Nemo stays installed for that.
  programs.yazi = lib.mkIf isDesktop {
    enable = true;
    enableFishIntegration = true;

    # Off by default; yazi is keyboard-first.
    settings.mgr.mouse_events = [ "click" "scroll" ];

    # Colour NAMES, not hex — the whole point. "reset" means the terminal's
    # own fg/bg, and the eight names map onto ghostty's palette, which our
    # ghostty.conf fills from the wallpaper:
    #   black=base00  red=base08  green=base0B  yellow=base0A
    #   blue=base0D (accent)  magenta=base0E  cyan=base0C
    #   gray=base05 (text)  darkgray=base03 (borders)
    theme = let
      accent = "blue";
      dim = "darkgray";
      text = "gray";
      on = c: { fg = "black"; bg = c; };
      fg = c: { fg = c; };
      both = c: { fg = c; bg = c; };
    in {
      mgr = {
        cwd = fg accent;
        find_keyword = { fg = "green"; bold = true; };
        find_position = fg "magenta";
        marker_selected = both "yellow";
        marker_copied = both "green";
        marker_cut = both "red";
        border_style = fg dim;
        count_copied = on "green";
        count_cut = on "red";
        count_selected = on "yellow";
      };
      indicator.current = { bg = dim; bold = true; };
      tabs = {
        active = (on accent) // { bold = true; };
        inactive = { fg = accent; bg = "black"; };
      };
      mode = {
        normal_main = (on accent) // { bold = true; };
        normal_alt = { fg = accent; bg = "black"; };
        select_main = (on "green") // { bold = true; };
        select_alt = { fg = "green"; bg = "black"; };
        unset_main = (on "yellow") // { bold = true; };
        unset_alt = { fg = "yellow"; bg = "black"; };
      };
      status = {
        progress_label = fg text;
        progress_normal = fg text;
        progress_error = fg "red";
        perm_type = fg accent;
        perm_read = fg "yellow";
        perm_write = fg "red";
        perm_exec = fg "green";
        perm_sep = fg "cyan";
      };
      pick = { border = fg accent; active = fg "magenta"; inactive = fg text; };
      input = { border = fg accent; title = fg text; value = fg text; selected.bg = dim; };
      completion = {
        border = fg accent;
        active = { fg = "magenta"; bg = dim; };
        inactive = fg text;
      };
      tasks = { border = fg accent; title = fg text; hovered = { fg = text; bg = dim; }; };
      which = {
        mask.bg = "black";
        cand = fg "cyan";
        rest = fg "yellow";
        desc = fg text;
        separator_style = fg dim;
      };
      help = {
        on = fg "magenta";
        run = fg "cyan";
        desc = fg text;
        hovered = { fg = text; bg = dim; };
        footer = fg text;
      };
      filetype.rules = [
        { mime = "image/*"; fg = "cyan"; }
        { mime = "video/*"; fg = "yellow"; }
        { mime = "audio/*"; fg = "yellow"; }
        { mime = "application/zip"; fg = "magenta"; }
        { mime = "application/gzip"; fg = "magenta"; }
        { mime = "inode/directory"; fg = accent; bold = true; }
        { name = "*"; fg = "reset"; }
      ];
    };
  };

  # Ghostty — stylix's ghostty target writes the colour theme.
  programs.ghostty = lib.mkIf isDesktop {
    enable = true;
    settings = {
      font-family = "CaskaydiaCove NF";
      font-size = 11;
      font-thicken = true;
      window-padding-x = 10;
      window-padding-y = 10;
      window-padding-balance = true;
      background-opacity = 0.98;
      confirm-close-surface = false;
      gtk-titlebar = false;
      gtk-single-instance = true;
      # keeps the warm instance alive with zero windows
      quit-after-last-window-closed = false;
      cursor-style = "bar";
      cursor-style-blink = true;
    };
  };

  # Warm Ghostty instance — new windows attach via gtk-single-instance.
  systemd.user.services.ghostty-daemon = lib.mkIf isDesktop {
    Unit = {
      Description = "Ghostty warm instance (no window)";
      After = [ "graphical-session.target" ];
      PartOf = [ "graphical-session.target" ];
    };
    Service = {
      Type = "simple";
      ExecStart = "${pkgs.ghostty}/bin/ghostty --initial-window=false";
      Restart = "always";
    };
    Install.WantedBy = [ "graphical-session.target" ];
  };

}