#!/usr/bin/env bash

(
set -e
PS1="$"
basedir="$(cd "$1" && pwd -P)"
workdir="$basedir/work"
minecraftversion=$(cat "$workdir/BuildData/info.json"  | grep minecraftVersion | cut -d '"' -f 4)
decompiledir="$workdir/$minecraftversion"
nms="$decompiledir/net/minecraft/server"
cb="src/main/java/net/minecraft/server"
gpgsign="$(git config commit.gpgsign || echo "false")"


patch=$(which patch 2>/dev/null)
if [ "x$patch" == "x" ]; then
    patch="$basedir/hctap.exe"
fi

function enableCommitSigningIfNeeded {
    if [[ "$gpgsign" == "true" ]]; then
        git config commit.gpgsign true
    fi
}

echo "Applying CraftBukkit patches to NMS..."
cd "$workdir/CraftBukkit"
git checkout -B patched HEAD >/dev/null 2>&1
rm -rf "$cb"
mkdir -p "$cb"
for file in $(ls nms-patches)
do
    patchFile="nms-patches/$file"
    file="$(echo "$file" | cut -d. -f1).java"

    echo "Patching $file < $patchFile"
    set +e
    sed -i 's/\r//' "$nms/$file" > /dev/null
    set -e

    cp "$nms/$file" "$cb/$file"
    "$patch" -s -d src/main/java/ "net/minecraft/server/$file" < "$patchFile"
done

git add src >/dev/null 2>&1
# We don't need to sign an automated commit
# All it does is make you input your key passphrase mid-patch
git config commit.gpgsign false
git commit -m "CraftBukkit $ $(date)" >/dev/null 2>&1
enableCommitSigningIfNeeded
git checkout -f HEAD^ >/dev/null 2>&1
)