#!/bin/bash
set -eu

. ${SCRIPTS:-/}start-utils

export TYPE=FABRIC

FABRIC_INSTALLER=${FABRIC_INSTALLER:-}
FABRIC_INSTALLER_URL=${FABRIC_INSTALLER_URL:-}
FABRIC_INSTALLER_VERSION=${FABRIC_INSTALLER_VERSION:-${FABRICVERSION:-LATEST}}
if [[ -z $FABRIC_INSTALLER && -z $FABRIC_INSTALLER_URL ]]; then
  log "Checking Fabric version information."
  case $FABRIC_INSTALLER_VERSION in
    LATEST)
      FABRIC_INSTALLER_VERSION=$(maven-metadata-release https://maven.fabricmc.net/net/fabricmc/fabric-installer/maven-metadata.xml)
      ;;
  esac

  FABRIC_INSTALLER="/tmp/fabric-installer-${FABRIC_INSTALLER_VERSION}.jar"
  markerVersion=$FABRIC_INSTALLER_VERSION

elif [[ -z $FABRIC_INSTALLER ]]; then
  FABRIC_INSTALLER="/tmp/fabric-installer.jar"
  markerVersion=custom
elif [[ ! -e $FABRIC_INSTALLER ]]; then
  log "ERROR: the given Fabric installer doesn't exist : $FABRIC_INSTALLER"
  exit 2
fi

installMarker="/data/.fabric-installed-${VANILLA_VERSION}-${markerVersion}"

debug Checking for installMarker ${installMarker}
if [[ ! -e $installMarker ]]; then
  if [[ ! -e $FABRIC_INSTALLER ]]; then
    if [[ -z $FABRIC_INSTALLER_URL ]]; then
      log "Downloading installer version $FABRIC_INSTALLER_VERSION"
      downloadUrl="https://maven.fabricmc.net/net/fabricmc/fabric-installer/${FABRIC_INSTALLER_VERSION}/fabric-installer-${FABRIC_INSTALLER_VERSION}.jar"
      log "...trying $downloadUrl"
      curl -o $FABRIC_INSTALLER -fsSL $downloadUrl
    else
      log "Downloading $FABRIC_INSTALLER_URL ..."
      if ! curl -o $FABRIC_INSTALLER -fsSL $FABRIC_INSTALLER_URL; then
        log "Failed to download from given location $FABRIC_INSTALLER_URL"
        exit 2
      fi
    fi
  fi

  if isDebugging; then
    debug "Installing Fabric ${VANILLA_VERSION} using $FABRIC_INSTALLER"
  else
    log "Installing Fabric using $FABRIC_INSTALLER"
  fi
  tries=3
  set +e
  while ((--tries >= 0)); do
    java -jar $FABRIC_INSTALLER server \
      -mcversion $VANILLA_VERSION \
      -downloadMinecraft \
      -dir /data
    if [[ $? == 0 ]]; then
      break
    fi
  done
  set -e
  if (($tries < 0)); then
    log "Fabric failed to install after several tries." >&2
    exit 10
  fi
  export SERVER=fabric-server-launch.jar
  log "Using server $SERVER"
  echo $SERVER > $installMarker

else
  export SERVER=$(< $installMarker)
fi

# Contineut to Final Setup
exec ${SCRIPTS:-/}start-finalSetupWorld $@