#!/usr/bin/env bash

# get base dir regardless of execution location
SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
    DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
    SOURCE="$(readlink "$SOURCE")"
    [[ "$SOURCE" != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
SOURCE=$([[ "$SOURCE" = /* ]] && echo "$SOURCE" || echo "$PWD/${SOURCE#./}")
basedir=$(dirname "$SOURCE")

PS1="$"
workdir="$basedir/work"
minecraftversion="$(cat BuildData/info.json | grep minecraftVersion | cut -d '"' -f 4)"
decompiledir="$workdir/$minecraftversion"
classdir="$decompiledir/classes"

echo "Extracting NMS classes..."
if [ ! -d "$classdir" ]; then
    mkdir -p "$classdir"
    cd "$classdir"
    jar xf "$decompiledir/$minecraftversion-mapped.jar" net/minecraft/server
    if [ "$?" != "0" ]; then
        cd "$basedir"
        echo "Failed to extract NMS classes."
        exit 1
    fi
fi

echo "Decompiling classes..."
if [ ! -d "$decompiledir/net/minecraft/server" ]; then
    cd "$basedir"
    java -jar BuildData/bin/fernflower.jar -dgs=1 -hdc=0 -rbr=0 -asc=1 -udv=0 "$classdir" "$decompiledir"
    if [ "$?" != "0" ]; then
        echo "Failed to decompile classes."
        exit 1
    fi
fi