# vim: ts=2
{
  config,
  pkgs,
  lib,
  stdenv,
  strip_js_comments,
  generate_extensions,
  user_js,
  system,
  ...
}: let
  userChrome = builtins.readFile ./chrome/userChrome.css;

  user_js_override = pkgs.writeText "user.override.js" (builtins.readFile ./settings/override.js);
  user_js_nix = pkgs.runCommand "user.js" {} ''
        mkdir $out;
        cat "${user_js}/user.js" > $out/user.js;
        cat "${user_js_override}" >> $out/user.js;

        "${strip_js_comments.app.${system}.default.program}" $out/user.js > $out/user_clean.js;
    #    echo "{" > $out/user.nix.tmp
    #    sed 's/user_pref(\(.*\)",\(.*\));/\1" = \2;/' $out/user_clean.js >> $out/user.nix.tmp;
    #    echo "}" >> $out/user.nix.tmp
    #    awk '!/"_user.js.parrot"/' $out/user.nix.tmp >> $out/user.nix; # delete duplicate keys
  '';

  extensions = builtins.map buildFirefoxXpiAddon (
    lib.attrValues (
      lib.importJSON ./settings/extensions.json
    )
  );

  # source: https://gitlab.com/rycee/nur-expressions/-/blob/master/pkgs/firefox-addons/default.nix
  buildFirefoxXpiAddon = {
    pname,
    version,
    addonId,
    url,
    sha256,
    #meta,
    ...
  }:
    pkgs.stdenv.mkDerivation {
      name = "${pname}-${version}";

      #inherit meta;

      src = builtins.fetchurl {inherit url sha256;};

      preferLocalBuild = true;
      allowSubstitutes = true;

      buildCommand = ''
        dst="$out/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
        mkdir -p "$dst"
        install -v -m644 "$src" "$dst/${addonId}.xpi"
      '';
    };

  settings = {
    # Allow my custom css
    "toolkit.legacyUserProfileCustomizations.stylesheets" = true;

    # might improve performance TODO
    "gfx.webrender.all" = true;

    # disable updates (pretty pointless with nix)
    "extensions.update.autoUpdateDefault" = false;
    "extensions.update.enabled" = false;
    "app.update.channel" = "default";

    "browser.ctrlTab.recentlyUsedOrder" = false;

    "browser.download.useDownloadDir" = true;
    "browser.download.dir" = "${config.home.homeDirectory}/media/downloads";
    "browser.download.folderList" = 2; # TODO
    "browser.download.viewableInternally.typeWasRegistered.svg" = true;
    "browser.download.viewableInternally.typeWasRegistered.webp" = true;
    "browser.download.viewableInternally.typeWasRegistered.xml" = true;

    # TODO what does this do?
    "browser.search.widget.inNavBar" = true;

    "browser.shell.checkDefaultBrowser" = false;
    "browser.tabs.loadInBackground" = true;
    "browser.urlbar.placeholderName" = "Brave";

    "general.autoScroll" = true;

    # Set the tabs and bookmarks
    "browser.tabs.inTitlebar" = 1;
    "browser.toolbars.bookmarks.visibility" = "always";

    # Theme
    "extensions.activeThemeID" = "firefox-alpenglow@mozilla.org";
    "extensions.extensions.activeThemeID" = "firefox-alpenglow@mozilla.org";

    # highlight all entries when searching
    "findbar.highlightAll" = true;

    # TODO
    #"extensions.webcompat.enable_picture_in_picture_overrides" = true;
    #"extensions.webcompat.enable_shims" = true;
    #"extensions.webcompat.perform_injections" = true;
    #"extensions.webcompat.perform_ua_overrides" = true;

    # onlykey / copied from a yubikey config
    #"security.webauth.u2f" = true;
    #"security.webauth.webauthn" = true;
    #"security.webauth.webauthn_enable_softtoken" = true;
    #"security.webauth.webauthn_enable_usbtoken" = true;
  };
in {
  home.packages = [
    pkgs.firefox-wayland
  ];
  home.sessionVariables = {
    # improve touch input & make scrolling smother
    MOZ_USE_XINPUT2 = "1";
    # improve wayland support
    MOZ_ENABLE_WAYLAND = 1;
    XDG_CURRENT_DESKTOP = "river";
  };
  xdg.mimeApps = {
    enable = true;
    defaultApplications = {
      "text/html" = ["firefox.desktop"];
      "x-scheme-handler/http" = ["firefox.desktop"];
      "x-scheme-handler/https" = ["firefox.desktop"];
      "x-scheme-handler/about" = ["firefox.desktop"];
      "x-scheme-handler/unknown" = ["firefox.desktop"];
    };
  };
  programs.firefox = {
    enable = true;
    package = pkgs.firefox;
    profiles."default" = {
      inherit extensions;
      isDefault = true;
      id = 0;
      name = "default";

      inherit userChrome;

      search = {
        default = "Brave Search";
        force = true;

        engines = {
          "Brave Search" = {
            urls = [{template = "https://search.brave.com/search?q={searchTerms}";}];
            iconUpdateURL = "https://cdn.search.brave.com/serp/v1/static/brand/8eabe183f0d1f2cb3e2916b7b20c310efd196d740c8cecd341732fcd396fb665-apple-touch-icon.png";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@bs"];
          };

          "Nix Packages" = {
            urls = [
              {
                template = "https://search.nixos.org/packages";
                params = [
                  {
                    name = "type";
                    value = "packages";
                  }
                  {
                    name = "query";
                    value = "{searchTerms}";
                  }
                ];
              }
            ];

            icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
            definedAliases = ["@np"];
          };

          "NixOS Wiki" = {
            urls = [{template = "https://nixos.wiki/index.php?search={searchTerms}";}];
            iconUpdateURL = "https://nixos.wiki/favicon.png";
            updateInterval = 24 * 60 * 60 * 1000; # every day
            definedAliases = ["@nw"];
          };
          "Bing".metaData.hidden = true;
          "Google".metaData.hidden = true;
          "Amazon.de".metaData.hidden = true;
        };
      };

      bookmarks = [
        {
          name = "Rust::std";
          # TODO
          url = "file:///home/dt/.local/share/rustup/toolchains/stable-x86_64-unknown-linux-gnu/share/doc/rust/html/std/all.html";
        }

        {
          name = "Feed - Piped";
          url = "https://piped.kavin.rocks/feed";
        }

        {
          name = "DeepL Translate";
          url = "https://www.deepl.com/translator#en/de/test";
        }

        {
          name = "Google Scholar";
          url = "https://scholar.google.com/";
        }

        {
          name = "ArchWiki";
          url = "https://wiki.archlinux.org/";
        }

        {
          name = "Arch Package ";
          url = "https://archlinux.org/packages/";
        }

        {
          name = "layout.css.devPixelsPerPx";
          url = "about:config";
        }
      ];
      inherit settings;
      extraConfig = builtins.readFile "${user_js_nix}/user.js";
    };
  };
}