#!/bin/bash

set -e

PROJECTNAME=pki
RELEASENAME=${PROJECTNAME}
VERSION="0"

GOOPTIONS="-mod=vendor"
SRCFILES=cmd/${PROJECTNAME}/*.go

build() {
  echo "Begin of build"
  if [[ ! -z $DRONE_TAG ]]
  then
    echo "Drone tag set, let's do a release"
    VERSION=$DRONE_TAG
    echo "${PROJECTNAME} ${VERSION}" > /build/VERSION
  elif [[ ! -z $DRONE_TAG ]]
  then
    echo "Drone not set, let's only do a build"
    VERSION=$DRONE_COMMIT
  fi

  if [[ ! -z $VERSION && ! -z $GOOS && ! -z $GOARCH ]]
  then
    echo "Let's set a release name"
    RELEASENAME=${PROJECTNAME}-${VERSION}-${GOOS}-${GOARCH}
  fi

  echo "Building project"
  go build -o ${PROJECTNAME} ${GOOPTIONS} ${SRCFILES}
  
  if [[ ! -z $DRONE_TAG ]]
  then
    echo "Let's make archives"
    mkdir -p /build
    tar -czvf /build/${RELEASENAME}.tar.gz ${PROJECTNAME}
  fi

  echo "Removing binary file"
  rm ${PROJECTNAME}

  echo "End of build"
}

clean() {
  rm -rf $RELEASEDIR
}

case $1 in
  "build")
    build
  ;;
  "clean")
    clean
  ;;
  *)
    echo "No options choosen"
    exit 1
  ;;
esac