#!/bin/sh

set -e -x

cd "$(mktemp -d)"

cat >main.go <<EOF
package main

import (
	"fmt"
)

func main() {
	fmt.Println("aloha")
}
EOF

cat >shell.nix <<EOF
let
    pkgsVersion = "22.11";
    pkgsSrc = fetchTarball {
      name = "nixpkgs-\${pkgsVersion}";
      url = "https://github.com/NixOS/nixpkgs/archive/ce20e9ebe1903ea2ba1ab006ec63093020c761cb.tar.gz";
      sha256 = "sha256-eFNm2h6fNbgD7ZpO4MHikCB5pSnCJ7DTmwPisjetmwc=";
    };
    pkgs = (import pkgsSrc) {};
in
    pkgs.mkShell {
        buildInputs = [
            pkgs.go
            pkgs.golangci-lint
        ];

        shellHook = ''
            go mod init local-playground
            $EDITOR main.go
        '';
    }
EOF

nix-shell -v