#!/usr/bin/env bash
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x

fn-plugin-property-delete() {
  declare desc="delete a key from the property store for an app"
  declare PLUGIN="$1" APP="$2" KEY="$3"

  if [[ -z "$PLUGIN" ]] || [[ -z "$APP" ]] || [[ -z "$KEY" ]]; then
    return 1
  fi

  rm -f "${DOKKU_LIB_ROOT}/config/${PLUGIN}/${APP}/${KEY}"
}

fn-plugin-property-destroy() {
  declare desc="destroy the properties for an app"
  declare PLUGIN="$1" APP="$2"

  if [[ -z "$PLUGIN" ]] || [[ -z "$APP" ]]; then
    return 1
  fi

  if [[ "$APP" == "_all_" ]]; then
    rm -rf "${DOKKU_LIB_ROOT}/config/${PLUGIN}"
  else
    rm -rf "${DOKKU_LIB_ROOT}/config/${PLUGIN}/${APP}"
  fi
}

fn-plugin-property-exists() {
  declare desc="returns whether the property store has a value for an app"
  declare PLUGIN="$1" APP="$2" KEY="$3" DEFAULT="$4"
  local CONFIG_VALUE

  if [[ -z "$PLUGIN" ]] || [[ -z "$APP" ]] || [[ -z "$KEY" ]]; then
    return 1
  fi

  if [[ ! -f "${DOKKU_LIB_ROOT:?}/config/${PLUGIN}/${APP}/${KEY}" ]]; then
    return 1
  fi
}

fn-plugin-property-get() {
  declare desc="returns the property store value for an app"
  declare PLUGIN="$1" APP="$2" KEY="$3" DEFAULT="$4"
  local CONFIG_VALUE

  if [[ -z "$PLUGIN" ]] || [[ -z "$APP" ]] || [[ -z "$KEY" ]]; then
    return 1
  fi

  CONFIG_VALUE="$(fn-plugin-property-read "$PLUGIN" "$APP" "$KEY" || true)"
  if [[ -z "$CONFIG_VALUE" ]]; then
    CONFIG_VALUE="$DEFAULT"
  fi
  echo "$CONFIG_VALUE"
}

fn-plugin-property-setup() {
  declare desc="creates the plugin config root"
  declare PLUGIN="$1"

  if [[ -z "$PLUGIN" ]]; then
    return 1
  fi

  mkdir -p "${DOKKU_LIB_ROOT}/config/${PLUGIN}"
  chmod 0755 "${DOKKU_LIB_ROOT}/config/${PLUGIN}"
  chown "${DOKKU_SYSTEM_USER}:${DOKKU_SYSTEM_GROUP}" "${DOKKU_LIB_ROOT}/config/${PLUGIN}"
}

fn-plugin-property-read() {
  declare desc="read a key from the property store for an app"
  declare PLUGIN="$1" APP="$2" KEY="$3"

  if [[ -z "$PLUGIN" ]] || [[ -z "$APP" ]] || [[ -z "$KEY" ]]; then
    return 1
  fi

  if [[ ! -f "${DOKKU_LIB_ROOT:?}/config/${PLUGIN}/${APP}/${KEY}" ]]; then
    return 1
  fi

  cat "${DOKKU_LIB_ROOT}/config/${PLUGIN}/${APP}/${KEY}"
}

fn-plugin-property-write() {
  declare desc="read a key from the property store for an app"
  declare PLUGIN="$1" APP="$2" KEY="$3" VALUE="$4"

  if [[ -z "$PLUGIN" ]] || [[ -z "$APP" ]] || [[ -z "$KEY" ]]; then
    return 1
  fi

  mkdir -p "${DOKKU_LIB_ROOT}/config/${PLUGIN}/${APP}"
  echo "$VALUE" > "${DOKKU_LIB_ROOT}/config/${PLUGIN}/${APP}/${KEY}"
  chmod 600 "${DOKKU_LIB_ROOT}/config/${PLUGIN}/${APP}/${KEY}"
}