#!/usr/bin/env bash

set -o errexit
set -o nounset
set -o pipefail

function build {
  _nixos build "$@"
}

function check {
  nix flake check
}

function clean {
  nix store gc --verbose
  nix store optimise --verbose
}

function collect-garbage {
  nix-collect-garbage -d
  sudo nix-collect-garbage -d
}

function format {
  nix fmt flake.nix home hosts lib modules
}

function help {
  printf "%s <task> [args]\n\nTasks:\n" "$0"

  compgen -A function | grep -v "^_" | cat -n

  printf "\nExtended help:\n  Each task has comments for general usage\n"
}

function switch {
  _nixos switch "$@"
}

function test {
  _nixos test "$@"
}

function update {
  nix flake update
}

function _nixos {
  local command="$1"
  shift 1

  sudo nixos-rebuild "$command" --flake . "$@"
}

TIMEFORMAT=$'\nTask completed in %3lR'
time "${@:-help}"