#!/usr/bin/env bash
set -eo pipefail
[[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/config/functions"

trigger-builder-cnb-builder-build() {
  declare desc="builder-cnb builder-build plugin trigger"
  declare trigger="builder-build"
  declare BUILDER_TYPE="$1" APP="$2" SOURCECODE_WORK_DIR="$3"

  if [[ "$BUILDER_TYPE" != "cnb" ]]; then
    return
  fi

  if ! command -v "pack" &>/dev/null; then
    dokku_log_fail "Missing pack, install it"
  fi

  local IMAGE=$(get_app_image_name "$APP")

  pushd "$SOURCECODE_WORK_DIR" &>/dev/null

  local TMP_FILE=$(mktemp "/tmp/dokku-${DOKKU_PID}-${FUNCNAME[0]}.XXXXXX")
  trap "rm -rf '$TMP_FILE' >/dev/null" RETURN INT TERM

  config_export app "$APP" --format envfile --merged > "$TMP_FILE"

  plugn trigger pre-build-cnb "$APP" "$SOURCECODE_WORK_DIR"

  pack build "$IMAGE" --builder heroku/buildpacks --path "$SOURCECODE_WORK_DIR" --default-process web

  echo "FROM $IMAGE" | suppress_output "$DOCKER_BIN" image build --label=com.dokku.image-stage=build --label=org.label-schema.schema-version=1.0 --label=org.label-schema.vendor=dokku --label=com.dokku.app-name=$APP --label=dokku -t "$IMAGE" -

  plugn trigger post-build-cnb "$APP" "$SOURCECODE_WORK_DIR"
}

trigger-builder-cnb-builder-build "$@"