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

fn-proxy-escape-extended-sed() {
  # Escaped delimiter is '/'
  local input="$1"
  echo "$input" | sed -E 's#[][()\.^$?*+{}|/]#\\&#g'
}

fn-proxy-get-labels-file-path() {
  declare desc="return proxy labels config file path for specified proxy"
  declare PROXY="$1" APP="$2"
  local PROXY_FILE="${DOKKU_LIB_ROOT}/config/${PROXY}/${APP}/labels"

  echo "$PROXY_FILE"
}

fn-proxy-display-labels() {
  declare desc="print user-set app container labels for specified proxy"
  declare PROXY="$1" APP="$2"
  local proxy_labels_file_path="$(fn-proxy-get-labels-file-path "$PROXY" "$APP")"
  if [[ -s "$proxy_labels_file_path" ]]; then
    dokku_log_info2_quiet "${APP} ${PROXY} labels"
    while read -r line; do
      [[ -z "$line" ]] && continue

      case "$line" in
        \#*)
          continue
          ;;

        *)
          dokku_log_verbose "$line"
          ;;
      esac
    done <"$proxy_labels_file_path"
  else
    dokku_log_warn_quiet "No ${PROXY} labels set for ${APP}"
  fi
}

fn-proxy-show-label() {
  declare desc="print single user-set app container label for specified proxy"
  declare PROXY="$1" APP="$2" PASSED_LABEL_NAME="$3"

  local proxy_labels_file_path="$(fn-proxy-get-labels-file-path "$PROXY" "$APP")"
  if [[ ! -s "$proxy_labels_file_path" ]]; then
    return
  fi

  local all_proxy_labels="$(<"$proxy_labels_file_path")"
  local escaped_label_name="$(fn-proxy-escape-extended-sed "$PASSED_LABEL_NAME")"
  local proxy_label_value="$(echo -e "${all_proxy_labels}" | sed -E -n "s/^${escaped_label_name}=(.*)\$/\1/p")"

  echo "$proxy_label_value"
}