#!/usr/bin/env sh
set -e

test -n "$MC_VERSION" || {
  >&2 echo "MC_VERSION unset"
  exit 1
}

test -n "$BUILT_PLUGIN" || {
  >&2 echo "BUILT_PLUGIN unset"
  exit 1
}

BUILT_PLUGIN="$(realpath "$BUILD_WORKSPACE_DIRECTORY/$BUILT_PLUGIN")"
test -e "$BUILT_PLUGIN" || {
  >&2 echo "$BUILT_PLUGIN does not exist"
  exit 1
}

mkdir -p "$BUILD_WORKSPACE_DIRECTORY/run"
cd "$BUILD_WORKSPACE_DIRECTORY/run"
printf 'eula=true' > eula.txt

server="paper-${MC_VERSION}.jar"
test -f "$server" || {
  >&2 echo "$server not found. downloading..."
  url="$(curl -Ls "https://fill.papermc.io/v3/projects/paper/versions/$MC_VERSION/builds/latest" \
    | jq -r '.downloads."server:default".url')"
  curl -L -o "$server" "$url"
}

# shellcheck disable=SC2068
for arg in $@; do
  name="$(echo "$arg" | cut -d= -f1)"
  url="$(echo "$arg" | cut -d= -f2)"
  plugin="plugins/$name"
  test -f "$plugin" || curl -Lo "$plugin" "$url"
done

exec java -jar "$server" \
  --nogui \
  --add-plugin "$BUILT_PLUGIN"