{ lib, pkgs, ... }:

{
  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  environment.systemPackages = with pkgs;[
    vim
    wget
    curl
    axel
    htop
  ];

  environment.variables = {
    HOMEBREW_API_DOMAIN = "https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles/api";
    HOMEBREW_BOTTLE_DOMAIN = "https://mirrors.tuna.tsinghua.edu.cn/homebrew-bottles";
    HOMEBREW_BREW_GIT_REMOTE = "https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/brew.git";
    HOMEBREW_CORE_GIT_REMOTE = "https://mirrors.tuna.tsinghua.edu.cn/git/homebrew/homebrew-core.git";
    HOMEBREW_PIP_INDEX_URL = "https://pypi.tuna.tsinghua.edu.cn/simple";
  };

  # Use a custom configuration.nix location.
  # $ darwin-rebuild switch -I darwin-config=$HOME/.config/nixpkgs/darwin/configuration.nix
  # environment.darwinConfig = "$HOME/.config/nixpkgs/darwin/configuration.nix";

  # Auto upgrade nix package and the daemon service.
  services.nix-daemon.enable = true;
  # nix.package = pkgs.nix;
  nixpkgs.config = {
    allowUnfree = true;
    allowUnsupportedSystem = true;
  };

  nix.settings = {
    experimental-features = [ "nix-command" "flakes" ];
    auto-optimise-store = true;
    substituters = lib.mkForce [
      "https://mirrors.ustc.edu.cn/nix-channels/store" # 中科大
      "https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store" #清华
      "https://mirrors.bfsu.edu.cn/nix-channels/store" # 北外
      "https://mirror.sjtu.edu.cn/nix-channels/store" #交大
      #"https://cache.nixos.org/"
    ];
    trusted-users =  [
      "tonychyi"
    ];
  };

  # Create /etc/zshrc that loads the nix-darwin environment.
  programs.zsh.enable = true; # default shell on catalina
  # programs.fish.enable = true;

  # Used for backwards compatibility, please read the changelog before changing.
  # $ darwin-rebuild changelog
  system.stateVersion = 4;

  users.users.tonychyi = {
    name = "tonychyi";
    home = "/Users/tonychyi";
  };

  homebrew = {
    enable = true;
    onActivation = {
      autoUpdate = false;
      # 'zap': uninstalls all formulae(and related files) not listed here.
      cleanup = "zap";
    };

    masApps = {
      # TODO Feel free to add your favorite apps here.

      # Xcode = 497799835;
      # Wechat = 836500024;
      # NeteaseCloudMusic = 944848654;
      # QQ = 451108668;
      # WeCom = 1189898970;  # Wechat for Work
      # TecentMetting = 1484048379;
      # QQMusic = 595615424;
    };

    # TODO package list
    brews = [
      "curl"
      "ffmpeg"
      "qemu"
      "proxychains-ng"
    ];

    # TODO package list
    casks = [
      "clock-bar"
      "macfuse"
      "ntfstool"
      "rar"
      "tailscale"
      "webpquicklook"
    ];
  };
}