FROM "${BASE_IMAGE:-localhost/minecraft-base}":"${BASE_TAG:-latest}"

# Minecraft version
ARG VERSION=latest

# SpigotMC BuildTools URL
ARG BASE_URL="https://hub.spigotmc.org/jenkins/job/BuildTools/"
ARG ARTIFACT_PATH="lastSuccessfulBuild/artifact/target/BuildTools.jar"

# Download files and run as user
USER minecraft
WORKDIR /app

# Download and build Spigot using BuildTools
RUN set -ux && \
# Grab latest version if not specified
  if [ "$VERSION" = "latest" ]; then \
    VERSION="$( \
      curl -s https://launchermeta.mojang.com/mc/game/version_manifest.json \
        | jq -r '.latest.release' \
    )"; \
  fi && \
  # Download BuildTools.jar
  curl -s -o BuildTools.jar "${BASE_URL}${ARTIFACT_PATH}" && \
  ## Run BuildTools to build specified version
  java -jar BuildTools.jar --rev "$VERSION" --compile SPIGOT

# Generate initial settings
RUN java -jar server.jar --initSettings --nogui

# Back to root to copy the entrypoint in
USER root
WORKDIR /app

# Copy in entrypoint script
COPY ../entrypoint.sh /usr/local/bin/entrypoint.sh
RUN chmod +x /usr/local/bin/entrypoint.sh

# Run app as minecraft user
USER minecraft
WORKDIR /app

# Expose port and run entrypoint script
EXPOSE 25565
ENTRYPOINT ["entrypoint.sh"]