# The config files in ../../config, put where the programs read them. This
# replaces symlink.sh from the old dotfiles repo.
{
  config,
  lib,
  pkgs,
  ...
}:
let
  cfg = config.dot;

  # A file or directory of config/: linked to the checkout when liveConfig is
  # on (edits apply at once), copied into the store otherwise.
  link =
    rel:
    if cfg.liveConfig then
      config.lib.file.mkOutOfStoreSymlink "${cfg.repoPath}/config/${rel}"
    else
      ../../config + "/${rel}";

  # Configs the programs write themselves (GOverlay, btop, micro, apps that
  # register URL handlers): copied in only when missing, and never overwritten,
  # so changes made in the app stick. Your existing files in /home win.
  seeds = {
    ".config/btop/btop.conf" = "btop/btop.conf";
    ".config/MangoHud/MangoHud.conf" = "MangoHud/MangoHud.conf";
    ".config/vkBasalt/vkBasalt.conf" = "vkBasalt/vkBasalt.conf";
    ".config/vkSumi/vkSumi.conf" = "vkSumi/vkSumi.conf";
    ".config/micro/settings.json" = "micro/settings.json";
    ".config/micro/bindings.json" = "micro/bindings.json";
    ".config/mimeapps.list" = "mimeapps.list";
  };
in
{
  xdg.configFile = {
    "hypr".source = link "hypr";
    "waybar".source = link "waybar";
    "dunst".source = link "dunst";
    "kitty".source = link "kitty";
    "fuzzel".source = link "fuzzel";
    "nvim".source = link "nvim";
    "qt6ct".source = link "qt6ct";
    "kdeglobals".source = link "kde/kdeglobals";
    "philly/theme.css".source = link "philly/theme.css";

    # Kvantum: the active theme is KvArcDark# (your customised copy of KvArcDark,
    # made with Kvantum Manager; it uses the stock theme's artwork). RiceDark is
    # the tweaked theme from the old repo, with the stock KvArcDark artwork
    # copied in under its name, as kvantum/install.sh did.
    "Kvantum/kvantum.kvconfig".source = link "kvantum/kvantum.kvconfig";
    "Kvantum/KvArcDark#/KvArcDark#.kvconfig".source = link "kvantum/KvArcDark#.kvconfig";
    "Kvantum/RiceDark/RiceDark.kvconfig".source = link "kvantum/RiceDark.kvconfig";
    "Kvantum/RiceDark/RiceDark.svg".source =
      "${pkgs.kdePackages.qtstyleplugin-kvantum}/share/Kvantum/KvArcDark/KvArcDark.svg";

    "micro/colorschemes".source = ../../config/micro/colorschemes;
  };

  home.file.".p10k.zsh".source = link "zsh/p10k.zsh";

  home.activation = {
    seedConfigs = lib.hm.dag.entryAfter [ "writeBoundary" ] (
      lib.concatStrings (
        lib.mapAttrsToList (target: rel: ''
          if [ ! -e "$HOME/${target}" ]; then
            run mkdir -p "$(dirname "$HOME/${target}")"
            run install -m644 ${../../config + "/${rel}"} "$HOME/${target}"
          fi
        '') seeds
      )
    );

    # Firefox: user.js and userChrome.css in the default profile, which Firefox
    # creates itself (Home Manager's own Firefox module would make a new profile
    # and take over profiles.ini). Same as symlink.sh did.
    firefoxProfile = lib.hm.dag.entryAfter [ "writeBoundary" ] ''
      ini="$HOME/.config/mozilla/firefox/profiles.ini"
      if [ -f "$ini" ]; then
        profile=$(${pkgs.gawk}/bin/awk -F= '
          /^\[Install/ { install = 1; next }
          /^\[/ { install = 0 }
          install && $1 == "Default" { print $2; exit }
        ' "$ini")
        if [ -n "$profile" ]; then
          dir="$HOME/.config/mozilla/firefox/$profile"
          run mkdir -p "$dir/chrome"
          run ln -sfn ${link "firefox/user.js"} "$dir/user.js"
          run ln -sfn ${link "firefox/userChrome.css"} "$dir/chrome/userChrome.css"
        fi
      else
        warnEcho "Firefox has no profile yet: start Firefox once, then run home-manager switch (or nixos-rebuild switch) again."
      fi
    '';
  };
}