#!/usr/bin/env bash
set -eo pipefail

echo "---> Generate Launcher"
layers_dir=$1

function procfile_to_launch() {
  procfile=$(< Procfile yj -yj)
  for key in $(echo "${procfile}" | jq -r "to_entries | .[] | .key"); do
    default="false"
    if [[ "${key}" == "web" ]] ; then
      default="true"
    fi
    cat >> "${layers_dir}/launch.toml" <<EOL
  [[processes]]
  type = "${key}"
  command = "$(echo "$procfile" | jq -r ".$key")"
  direct = false
  default = ${default}
EOL
  done
}


if [[ -f Procfile ]]; then
  procfile_to_launch
elif [[ -f launch.toml ]]; then
  cp launch.toml "${layers_dir}/launch.toml"
else
  echo "---> Error generating launcher, no Procfile and launch.toml found."
  exit 1
fi