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 "   hero   compile and start a dev server for herocomics.app"
  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 _"

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"

function hero() {
  export HERO_PORT=3000
  export HERO_KEEP=$BIZ_ROOT/_/keep
  export HERO_SKEY=$BIZ_ROOT/_/skey
  bild="runghc Biz.Bild"
  if [[ ! -z "${IN_NIX_SHELL}" ]]
  then
    out="_/bild/dev"
    # in dev mode, mmc.js is a directory of js assets
    export HERO_NODE=$BIZ_ROOT/$out/static/mmc.js
    rg --files \
      | entr -rcs \
        "$bild Hero.Host.hs && $bild Hero.Node.hs && $out/bin/mmc"
  else
    out="_/bild/nix"
    export HERO_NODE=$BIZ_ROOT/$out/Hero.Node/static
    rg --files \
      | entr -rcs \
        "$bild Hero.Host && $bild Hero.Node && $out/Hero.Host/bin/mmc"
  fi
}

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.$1"
  fi
  what=$(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() {
  $BIZ_ROOT/Biz/Lint.py
  stuff=(${1})
  if [[ ${#stuff[@]} -eq 0 ]]
  then
    stuff=(
      Biz.Cloud
      Biz.Dev
      Que.Prod
      Hero.Prod
    )
  fi
  for thing in ${stuff[@]}
  do
    bild $thing
  done
  for thing in ${stuff[@]}
  do
    push $thing
  done
}

# Poor man's ci
function ci() {
  set -e
  lint
  stuff=(
    Biz/Pie.hs
    Biz/Pie.nix
    Biz/Devalloc.hs
    Biz/Que/Site.hs
    Biz/Que/Host.hs
    Biz/Que/Prod.nix
    Biz/Cloud.nix
    Biz/Dev.nix
    Hero/Host.hs
    Hero/Node.hs
    Hero/Prod.nix
  )
  for thing in ${stuff[@]}
  do
    bild "$thing"
  done
}

help

# ftags - search ctags
ftags() {
  local line
  if [[ -e tags ]]
  then
  line=$(
    awk 'BEGIN { FS="\t" } !/^!/ {print toupper($4)"\t"$1"\t"$2"\t"$3}' tags | \
    cut -c1-80 | fzf --nth=1,2
  )
  ${EDITOR:-vim} \
    $(cut -f3 <<< "$line") -c "set nocst" \
    -c "silent tag $(cut -f2 <<< "$line")"
  fi
}