#!/usr/bin/env bash

set -o errexit
set -o pipefail

INC="$(pwd)/inc"
[ -d "$INC" ] || mkdir "$INC"

LIB="$(pwd)/lib"
[ -d "$LIB" ] || mkdir "$LIB"

LIB_FFT="fftw-3.3.11"
LIB_FFT_ZIP="$LIB_FFT.tar.gz"
LIB_FFT_URL="https://fftw.org/$LIB_FFT_ZIP"
LIB_FFT_A="libfftw3f.a"

[ -f "$LIB_FFT_ZIP" ] || wget "$LIB_FFT_URL"
[ -d "$LIB_FFT" ] || tar zxvf "$LIB_FFT_ZIP"

if ! [ -f "$LIB_FFT/build/$LIB_FFT_A" ]; then
  pushd "$LIB_FFT" 2>/dev/null

  if [ -d build ]; then
    rm -rf build
  fi

  cp "api/fftw3.h" "$INC"

  mkdir build
  pushd build

  cmake .. -DBUILD_SHARED_LIBS=OFF -DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
    -DENABLE_AVX=ON -DENABLE_AVX2=ON -DENABLE_SSE2=ON \
    -DENABLE_FLOAT=ON
  cmake --build . -j

  cp "$LIB_FFT_A" "$LIB"

  popd 2>/dev/null
  popd 2>/dev/null
fi

LIB_VKFFT="VkFFT"
LIB_VKFFT_URL="https://git.yummers.dev/yum-mirror/$LIB_VKFFT.git"

[ -d "$LIB_VKFFT" ] || git clone "$LIB_VKFFT_URL"

if ! [ -f "$LIB_VKFFT/build/glslang-main/SPIRV/libSPIRV.a" ]; then
  pushd "$LIB_VKFFT" 2>/dev/null

  if [ -d build ]; then
    rm -rf build
  fi

  mkdir build
  pushd build 2>/dev/null

  cmake ..
  cmake --build . -j

  popd 2>/dev/null
  popd 2>/dev/null
fi