#!/usr/bin/env bash

SCRIPT_DIR=$(cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P)

CLEAN=0
BUILD_GS=0
SKIPTEST=""

GS_SRC=$SCRIPT_DIR/Server

_JAR_DIR="$SCRIPT_DIR/builddir"

help()
{
    echo "Usage: $0 [-h] [-q] <-g|-c> [-o <path>]";
    echo "  -h: Display this message.";
    echo "  -g: Build the game server.";
    echo "  -c: Clean previous build.";
    echo "  -o: Specify jar-file directory.";
    echo "  -q: Quick build - will skip tests.";
}

error()
{
    echo "$1";
    exit 1;
}

clean_gs()
{
    cd $GS_SRC || error "Could not change dir to game server directory."
	echo "Cleaning the game server."
    sh mvnw clean || error "Failed to clean the game server. Giving up."
}

build_gs()
{
    cd "$GS_SRC" || error "ERROR: Could not chdir to server src. Abort."

    sh mvnw package $SKIPTEST || \
	error "Failed to build the game server. Giving up."
}

while getopts "hqgc:o:d" arg; do
    case $arg in
        h)
            help
            exit 0
            ;;
        g)
            BUILD_GS=1
            ;;
        c)
            CLEAN=1
            ;;
        o)
            _JAR_DIR=${OPTARG}
            ;;
        d)
            echo "_JAR_DIR=$_JAR_DIR"
            ;;
        q)
            SKIPTEST="-DskipTests"
            ;;
        *)
            error "Argument -$arg is not a known or valid argument."
            ;;
    esac
done

if [ $BUILD_GS -eq 0 ] && [ $CLEAN -eq 0 ]; then
    error "Need to either build or clean at least. See -h for details."
fi

# Inside func is cd so mgmt prob fails if no condition
(( CLEAN )) && clean_gs

# -----------

if [ -d "$_JAR_DIR" ]; then
    rm -r "$_JAR_DIR"
fi

mkdir -p "$_JAR_DIR" || error "Failed to create build directory.";

if [ $BUILD_GS -eq 1 ]; then
    build_gs

    # Will never execute if build_gs fails because it quits upon failure.
    mv -v "$GS_SRC"/target/*-with-dependencies.jar "$_JAR_DIR"/server.jar
fi