{ pkgs, src }:

let
  version = "0.99";
  wfvm = import ../wfvm.nix { inherit pkgs; };
  conda-vs2015_runtime-filename = "vs2015_runtime-14.27.29016-h5e58377_2.tar.bz2";
  conda-vs2015_runtime = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/vs2015_runtime/14.27.29016/download/win-64/${conda-vs2015_runtime-filename}";
    sha256 = "00cmda5iwx2f5bwm26fh3id97d458kza6ac6cvb1z6s7iirvs7fg";
  };
  conda-cmake-filename = "cmake-3.19.6-h9ad04ae_0.tar.bz2";
  conda-cmake = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/cmake/3.19.6/download/win-64/${conda-cmake-filename}";
    sha256 = "1q2pb18dh1nf0nlajf37l3nkj4mv39l8b3vn8jfsbfdhmnmgxxzf";
  };
  conda-zlib-filename = "zlib-1.2.11-h62dcd97_4.tar.bz2";
  conda-zlib = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/zlib/1.2.11/download/win-64/${conda-zlib-filename}";
    sha256 = "1jxd7sg0c278hqv09q6hridpdnyhkd34gbs92wkravj3gwsr1adk";
  };
  conda-libuv-filename = "libuv-1.40.0-he774522_0.tar.bz2";
  conda-libuv = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/libuv/1.40.0/download/win-64/${conda-libuv-filename}";
    sha256 = "1idwyavjg2vg6bgb1xpghxdc2cydj42g8bysyh4fw2c2yfksqb1c";
  };
  conda-llvm-filename = "llvm-11.1.0-h2eaa2aa_0.tar.bz2";
  conda-llvm = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/llvm/11.1.0/download/win-64/${conda-llvm-filename}";
    sha256 = "12dgx3nkcghsp1x76jqxcdbi27kq1b5ymwg1r9ralhcfcj8phyij";
  };
  conda-llvmdev-filename = "llvmdev-11.1.0-h425c57c_0.tar.bz2";
  conda-llvmdev = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/llvmdev/11.1.0/download/win-64/${conda-llvmdev-filename}";
    sha256 = "0p3jc170k11g2c00fnnm4jbla13mxkw1bn7fxz3bjhsq2ng9rgs8";
  };
  conda-libllvm11-filename = "libllvm11-11.1.0-h425c57c_0.tar.bz2";
  conda-libllvm11 = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/libllvm11/11.1.0/download/win-64/${conda-libllvm11-filename}";
    sha256 = "1f27rjf4gwrzc7xf99s3vgnx6djwz002xxnrkb4mxm044103nadc";
  };
  conda-llvm-tools-filename = "llvm-tools-11.1.0-h425c57c_0.tar.bz2";
  conda-llvm-tools = pkgs.fetchurl {
    url = "https://anaconda.org/anaconda/llvm-tools/11.1.0/download/win-64/${conda-llvm-tools-filename}";
    sha256 = "10r7izmajws8376sck0in9b11hx5mpq1vwbi6mhzvrv91pkz1lqs";
  };
  build = wfvm.utils.wfvm-run {
    name = "build-llvmlite";
    image = wfvm.makeWindowsImage { installCommands = with wfvm.layers; [ anaconda3 msvc msvc-ide-unbreak ]; };
    script = ''
      ln -s ${conda-vs2015_runtime} ${conda-vs2015_runtime-filename}
      ln -s ${conda-cmake} ${conda-cmake-filename}
      ln -s ${conda-zlib} ${conda-zlib-filename}
      ln -s ${conda-libuv} ${conda-libuv-filename}
      ln -s ${conda-llvm} ${conda-llvm-filename}
      ln -s ${conda-llvmdev} ${conda-llvmdev-filename}
      ln -s ${conda-libllvm11} ${conda-libllvm11-filename}
      ln -s ${conda-llvm-tools} ${conda-llvm-tools-filename}
      ${wfvm.utils.win-exec}/bin/win-exec "mkdir fake-channel && mkdir fake-channel\win-64"
      ${wfvm.utils.win-put}/bin/win-put ${conda-vs2015_runtime-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-cmake-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-zlib-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-libuv-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-llvm-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-llvmdev-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-libllvm11-filename} ./fake-channel/win-64
      ${wfvm.utils.win-put}/bin/win-put ${conda-llvm-tools-filename} ./fake-channel/win-64
      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate && conda index fake-channel"

      cat > meta.yaml << EOF
      package:
        name: llvmlite
        version: ${version}

      source:
        url: ../src.tar

      requirements:
        build:
          - cmake
          - llvmdev
      EOF

      cat > bld.bat << EOF
      @rem Let CMake know about the LLVM install path, for find_package()
      set CMAKE_PREFIX_PATH=%LIBRARY_PREFIX%

      @rem Ensure there are no build leftovers (CMake can complain)
      if exist ffi\build rmdir /S /Q ffi\build

      python setup.py install \
        --prefix=%PREFIX% \
        --single-version-externally-managed \
        --record=record.txt \
        --no-compile
      if errorlevel 1 exit 1
      EOF

      ${wfvm.utils.win-exec}/bin/win-exec "mkdir llvmlite"
      ${wfvm.utils.win-put}/bin/win-put meta.yaml llvmlite
      ${wfvm.utils.win-put}/bin/win-put bld.bat llvmlite
      mkdir src
      pushd src
      tar xvf ${src} --strip-components=1
      patch -p1 < ${../pkgs/llvmlite-callsite.diff}
      patch -p1 < ${../pkgs/llvmlite-abiname.diff}
      popd
      tar chf src.tar src
      ${wfvm.utils.win-put}/bin/win-put src.tar .

      ${wfvm.utils.win-exec}/bin/win-exec ".\Anaconda3\scripts\activate && conda build --no-anaconda-upload --no-test -c file:///C:/users/wfvm/fake-channel --override-channels --no-activate llvmlite"

      ${wfvm.utils.win-get}/bin/win-get "Anaconda3/conda-bld/win-64/llvmlite-${version}-0.tar.bz2"
    '';
  };
in
  pkgs.runCommand "conda-windows-llvmlite" { buildInputs = [ build ]; } ''
    wfvm-run-build-llvmlite
    mkdir -p $out/win-64 $out/nix-support
    cp llvmlite-*.tar.bz2 $out/win-64
    echo file conda $out/win-64/*.tar.bz2 >> $out/nix-support/hydra-build-products
    ''