#!/bin/bash
root=$(dirname "$0")

output="${root}/src/leveldb/raw.nim"

# install nimterop, if not already installed
if ! [ -x "$(command -v toast)" ]; then
  nimble install -y nimterop@0.6.13
fi

git submodule deinit -f "${root}"
git submodule update --init --recursive --checkout "${root}"

cmake -S "${root}/sources" -B "${root}/build"

# Remove testing, benchmarking, third-party libraries.
rm -Rf "${root}/sources/third_party"
rm -Rf "${root}/sources/benchmarks"
rm "${root}/sources/util/testutil.cc"

# Prelude:
cat "${root}/prelude.nim" > "${output}"
echo >> "${output}"

# assemble files to be compiled:
extensions="c cc cpp"
for ext in ${extensions}; do
  for file in `find "${root}/sources" -type f -name "*.${ext}" \
          | grep -v "_test" \
          | grep -v "env_windows.cc" \
          | grep -v "env_posix.cc" \
          | grep -v "leveldbutil.cc"`; do
    compile="${compile} --compile=${file}"
  done
done

# generate nim wrapper with nimterop
toast \
  $compile \
  --pnim \
  --preprocess \
  --noHeader \
  --includeDirs="${root}/sources" \
  --includeDirs="${root}/sources/helpers" \
  --includeDirs="${root}/sources/helpers/memenv" \
  --includeDirs="${root}/sources/port" \
  --includeDirs="${root}/sources/include" \
  --includeDirs="${root}/build/include" \
  --includeDirs="${root}/build/include/port" \
  "${root}/sources/include/leveldb/c.h" >> "${output}"