function help() {
  echo ""
  echo "bizdev" | figlet | lolcat
  echo ""
  echo "   bild   compile code"
  echo "   ci     run all builds and tests"
  echo "   deps   manage dependencies with niv"
  echo "   ghci   start ghci with correct options"
  echo "   help   show this message"
  echo "   lint   auto-lint all changed files"
  echo "   pie    product improvement engine"
  echo "   push   send a namespace to the cloud"
  echo "   ship   lint, bild, and push one (or all) namespace(s)"
}

alias runghc="runghc --ghc-arg=-i$BIZ_ROOT"

alias tree="tree -I _"

# link git hooks
rm -f $BIZ_ROOT/.git/hooks/{post-checkout,post-merge,pre-commit}
ln -s $BIZ_ROOT/Biz/Ide/post-checkout $BIZ_ROOT/.git/hooks/post-checkout
ln -s $BIZ_ROOT/Biz/Ide/post-merge $BIZ_ROOT/.git/hooks/post-merge
ln -s $BIZ_ROOT/Biz/Lint.py $BIZ_ROOT/.git/hooks/pre-commit

function bild() {
  runghc Biz.Bild $@
}

function deps() {
  niv --sources-file $BIZ_ROOT/Biz/Bild/Sources.json $@
}

alias ghci="ghci -i$BIZ_ROOT -ghci-script $BIZ_ROOT/.ghci"

alias lint=$BIZ_ROOT/Biz/Lint.py

function pie() {
  runghc Biz.Pie $@
}

# TODO: convert to haskell, see:
# - https://github.com/awakesecurity/nix-deploy/blob/master/src/Main.hs
# - http://www.haskellforall.com/2018/08/nixos-in-production.html
function push() {
  prefix=$(echo $PWD | sed -e "s|^$BIZ_ROOT/*||g")
  if [[ "$prefix" == "" ]]
  then
    target="$1"
  else
    target="$prefix.$1"
  fi
  echo "push: $target"
  what=$(realpath "$BIZ_ROOT/_/bild/nix/$target")
  # hack: get the domain from the activation script. there does not seem
  # to be a way to get it from nix-instantiate
  where=$(rg -r '$2' -e '(domainname ")(.*)(")' "$what/activate")
  nix copy --to ssh://root@$where $what
  ssh root@$where $what/bin/switch-to-configuration switch
  ssh root@$where nix-env --profile /nix/var/nix/profiles/system --set $what
}

# TODO: convert to haskell
function ship() {
  lint
  stuff=(${@})
  if [[ ${#stuff[@]} -eq 0 ]]
  then
    stuff=(
      Biz/Cloud.nix
      Biz/Dev.nix
      Biz/Que/Prod.nix
      Hero/Prod.nix
    )
  fi
  bild ${stuff[@]}
  for thing in ${stuff[@]}
  do
    push $thing
  done
}

# Poor man's ci
function run-ci() {
  lint **/* && bild **/*
}
alias ci="time run-ci"

export PS1='\n$(printf "%3.*s" $? $?)> '

help