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

PLUGIN_DATA_ROOT=/var/lib/dokku/services/mysql
PLUGIN_SERVICE="MySQL"

get_random_port() {
  local port=$RANDOM
  local quit=0

  while [ "$quit" -ne 1 ]; do
    netstat -a | grep $port >> /dev/null
    if [ $? -gt 0 ]; then
      quit=1
    else
      port=$((port + 1))
    fi
  done
  echo $port
}

get_container_ip() {
  docker inspect --format '{{ .NetworkSettings.IPAddress }}' "$1"
}

verify_service_name() {
  local SERVICE="$1"
  [[ ! -n "$SERVICE" ]] && dokku_log_fail "(verify_service_name) SERVICE must not be null"
  [[ ! -d "$PLUGIN_DATA_ROOT/$SERVICE" ]] && dokku_log_fail "$PLUGIN_SERVICE service $SERVICE does not exist"
  return 0
}

service_alias() {
  local SERVICE="$1"
  local ALIAS_FILE="$PLUGIN_DATA_ROOT/$SERVICE/ALIAS"

  verify_service_name "$1"
  if [[ -f "$ALIAS_FILE" ]]; then
    cat "$ALIAS_FILE"
  else
    echo "DATABASE"
  fi
}

service_url() {
  local SERVICE="$1";
  local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
  verify_service_name "$1"

  local ID="$(cat "$SERVICE_ROOT/ID")"
  local IP="$(get_container_ip "$ID")"
  local PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
  echo "mysql://mysql:$PASSWORD@$IP:3306/$SERVICE"
}