strategy:
  maxParallel: 10
  matrix:
    # Nim requires enforcing ARCH="x86" and UCPU
    # for 32-bit targets as it seems like Azure machines are 64-bit
    # TEST_LANG env variable support TODO
    Windows_32bit:
      VM: 'windows-latest'
      ARCH: x86
      PLATFORM: x86
      TEST_LANG: c
    Windows_64bit:
      VM: 'windows-latest'
      PLATFORM: x64
      TEST_LANG: c

pool:
  vmImage: $(VM)

variables:
  V: 0 # Scripts verbosity, 1 for debugging build scripts

steps:
  - task: CacheBeta@1
    displayName: 'cache Nim binaries'
    inputs:
      key: NimBinaries | $(Agent.OS) | $(PLATFORM) | "$(Build.SourceBranchName)" | "v4"
      path: NimBinaries

  - task: CacheBeta@1
    displayName: 'cache Go libp2p daemon'
    inputs:
      key: p2pdCache | $(Agent.OS) | $(PLATFORM) | "v3"
      path: p2pdCache

  - task: CacheBeta@1
    displayName: 'cache MinGW-w64'
    inputs:
      key: mingwCache | 8_1_0 | $(PLATFORM) | "v2"
      path: mingwCache

  - powershell: |
      Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem' -Name 'LongPathsEnabled' -Value 1
    displayName: 'long path support'

  - bash: |
      set -e

      # custom MinGW-w64 versions for both 32-bit and 64-bit, since we need a 64-bit build of p2pd
      echo "Installing MinGW-w64"

      install_mingw() {
        mkdir -p mingwCache
        cd mingwCache
        if [[ ! -e "$MINGW_FILE" ]]; then
          curl -OLsS "$MINGW_URL"
        fi
        7z x -y -bd "$MINGW_FILE" >/dev/null
        mkdir -p /c/custom
        mv "$MINGW_DIR" /c/custom/
        cd ..
      }

      # 32-bit
      MINGW_FILE="i686-8.1.0-release-posix-dwarf-rt_v6-rev0.7z"
      MINGW_URL="https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win32/Personal%20Builds/mingw-builds/8.1.0/threads-posix/dwarf/${MINGW_FILE}"
      MINGW_DIR="mingw32"
      install_mingw

      # 64-bit
      MINGW_FILE="x86_64-8.1.0-release-posix-seh-rt_v6-rev0.7z"
      MINGW_URL="https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/8.1.0/threads-posix/seh/${MINGW_FILE}"
      MINGW_DIR="mingw64"
      install_mingw

      if [[ $PLATFORM == "x86" ]]; then
        MINGW_DIR="mingw32"
      else
        MINGW_DIR="mingw64"
      fi
      export PATH="/c/custom/${MINGW_DIR}/bin:${PATH}"
      echo "PATH=${PATH}"
      which gcc
      gcc -v

      # detect number of cores
      export ncpu="$NUMBER_OF_PROCESSORS"
      [[ -z "$ncpu" || $ncpu -le 0 ]] && ncpu=2
      echo "Found ${ncpu} cores"

      # build nim from our own branch - this to avoid the day-to-day churn and
      # regressions of the fast-paced Nim development while maintaining the
      # flexibility to apply patches
      curl -OLsS https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
      env MAKE="mingw32-make -j${ncpu}" ARCH_OVERRIDE=$(PLATFORM) bash build_nim.sh Nim csources dist/nimble NimBinaries

      export PATH="${PWD}/Nim/bin:${PATH}"
      echo "PATH=${PATH}"

      # install and build go-libp2p-daemon
      go version

      export GOPATH="${PWD}/go"
      export PATH="${GOPATH}/bin:${PATH}"
      echo "PATH=${PATH}"

      # we can't seem to be able to build a 32-bit p2pd
      env PATH="/c/custom/mingw64/bin:${PATH}" bash scripts/build_p2pd.sh p2pdCache v0.2.4

      # install dependencies
      nimble refresh
      nimble install -y --depsOnly

      # run tests
      nimble test
      nimble examples_build
    displayName: 'build and test'