{ lib, pkgs, ... }:
let
  nix-prepare = pkgs.writeShellScript "nix-prepare" ''
    run() {
      local dir="$1"
      echo "Preparing nix environment in $dir"

      if [ "$dir" = "" ]; then
        echo "Usage: nix-prepare <dir>"
        exit 1
      fi

      mkdir -p $dir
      cd $dir

      git init

      # Insert the nix flake
      cp ${./flake-templates/c3c-flake.nix} flake.nix
      chmod 644 flake.nix

      echo '/*' > .gitignor
      echo '!/.gitignore' >> .gitignoree
      echo '!/flake.nix' >> .gitignore
      echo '!/flake.lock' >> .gitignore
      echo 'use flake . --impure' > .envrc

      git add flake.nix .gitignore
      git commit -m "Setup initial flake"

      direnv allow
      eval "$(direnv export bash)"

      git add flake.lock
      git commit -m "Lock flakes"
    }

    run "$@"
  '';

  git-nix-clone = pkgs.writeShellScript "git-nix-clone" ''
    # Input is a git repository such as git@github.com:group/project-name.git
    run() {
      local repo="$1"
      local projectName=$(echo "$repo" | sed 's/.*\///' | sed 's/\.git//')

      if [ "$repo" = "" ]; then
        echo "Usage: git-nix-clone <repo>"
        exit 1
      fi

      ${nix-prepare} "$projectName"-nix

      git clone "$repo" "$projectName"-nix"/$projectName"
    }

    run "$@"
  '';
in
{
  programs.zsh.shellAliases = {
    git-nix-clone = lib.mkDefault "${git-nix-clone}";
    nix-prepare = lib.mkDefault "${nix-prepare}";
  };

}