#!/usr/bin/env bash

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 $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
. "$(dirname "$SOURCE")/init.sh"

workdir=$basedir/Paper/work
minecraftversion=$(grep <"$basedir"/Paper/work/BuildData/info.json minecraftVersion | cut -d '"' -f 4)
decompiledir=$workdir/Minecraft/$minecraftversion/spigot

nms="net/minecraft/server"
export MODLOG=""
cd "$basedir" || exit

function containsElement() {
  local e
  for e in "${@:2}"; do
    [[ "$e" == "$1" ]] && return 0
  done
  return 1
}

export importedmcdev=""
function import() {
  if [ -f "$basedir/Paper/Paper-Server/src/main/java/net/minecraft/server/$1.java" ]; then
    echo "ALREADY IMPORTED $1"
    return 0
  fi
  export importedmcdev="$importedmcdev $1"
  file="${1}.java"
  target="$basedir/Paper/Paper-Server/src/main/java/$nms/$file"
  base="$decompiledir/$nms/$file"

  if [[ ! -f "$target" ]]; then
    export MODLOG="$MODLOG  Imported $file from mc-dev\n"
    echo "$(bashColor 1 32) Copying $(bashColor 1 34)$base $(bashColor 1 32)to$(bashColor 1 34) $target $(bashColorReset)"
    cp "$base" "$target"
  else
    echo "$(bashColor 1 33) UN-NEEDED IMPORT STATEMENT:$(bashColor 1 34) $file $(bashColorReset)"
  fi
}

function importLibrary() {
  group=$1
  lib=$2
  prefix=$3
  shift 3
  for file in "$@"; do
    file="$prefix/$file"
    target="$basedir/Paper/Paper-Server/src/main/java/$file"
    targetdir=$(dirname "$target")
    mkdir -p "${targetdir}"
    base="$workdir/Minecraft/$minecraftversion/libraries/${group}/${lib}/$file"
    if [ ! -f "$base" ]; then
      echo "Missing $base"
      exit 1
    fi
    export MODLOG="$MODLOG  Imported $file from $lib\n"
    sed 's/\r$//' "$base" >"$target" || exit 1
  done
}

(
  cd Paper/Paper-Server/ || exit
  lastlog=$(git log -1 --oneline)
  if [[ "$lastlog" == *"Purpur-Extra mc-dev Imports"* ]]; then
    git reset --hard HEAD^
  fi
)

files=$(cat patches/server/* | grep "+++ b/src/main/java/net/minecraft/server/" | sort | uniq | sed 's/\+\+\+ b\/src\/main\/java\/net\/minecraft\/server\///g' | sed 's/.java//g')

nonnms=$(cat patches/server/* | grep "create mode " | grep -Po "src/main/java/net/minecraft/server/(.*?).java" | sort | uniq | sed 's/src\/main\/java\/net\/minecraft\/server\///g' | sed 's/.java//g')

for f in $files; do
  containsElement "$f" "${nonnms[@]}"
  if [ "$?" == "1" ]; then
    if [ ! -f "$basedir/Paper/Paper-Server/src/main/java/net/minecraft/server/$f.java" ]; then
      if [ ! -f "$decompiledir/$nms/$f.java" ] && [ true ]; then
        echo "$(bashColor 1 31) ERROR!!! Missing NMS$(bashColor 1 34) $f $(bashColorReset)"
      else
        import "$f"
      fi
    fi
  fi
done

###############################################################################################
###############################################################################################
#################### ADD TEMPORARY ADDITIONS HERE #############################################
###############################################################################################
###############################################################################################

# import Foo

########################################################
########################################################
########################################################
#              LIBRARY IMPORTS
# These must always be mapped manually, no automatic stuff
#
#             # group    # lib          # prefix               # many files

#importLibrary com.mojang datafixerupper com/mojang/datafixers/util Either.java
importLibrary com.mojang brigadier  com/mojang/brigadier CommandDispatcher.java
importLibrary com.mojang brigadier  com/mojang/brigadier/tree LiteralCommandNode.java
importLibrary com.mojang brigadier  com/mojang/brigadier/suggestion SuggestionsBuilder.java
importLibrary com.mojang brigadier  com/mojang/brigadier/arguments BoolArgumentType.java

################
(
  cd Paper/Paper-Server/ || exit
  rm -rf nms-patches
  git add src -A
  echo -e "Purpur-Extra mc-dev Imports\n\n$MODLOG" | git commit src -F -
)