jobs:
- job: ${{ parameters.name }}
  timeoutInMinutes: 120
  variables:
    STACK_ROOT: $(Build.SourcesDirectory)/.stack-root
  pool:
    vmImage: ${{ parameters.vmImage }}
  strategy:
    matrix:
      stack:
        BUILD: stack
        STACK_YAML: stack.yaml
        ARGS: --pedantic
      #stack-lts-16:
      #  BUILD: stack
      #  STACK_YAML: stack-lts-16.yaml
      stack-lts-17:
        BUILD: stack
        STACK_YAML: stack-lts-17.yaml
    maxParallel: 6
  steps:
  - task: Cache@2
    inputs:
      key: ${{ parameters.name }} | "${{ parameters.vmImage }}" | $(STACK_YAML) | stack-root | $(Agent.OS) | version4
      path: $(STACK_ROOT)
      cacheHitVar: CACHE_RESTORED
    displayName: Cache stack root
  - script: |
      # brew install gcc
      # brew install blas
      # brew install lapack
      # brew install openblas
      mkdir -p ~/.local/bin
      curl -skL https://get.haskellstack.org/stable/osx-x86_64.tar.gz | tar xz --strip-components=1 --include '*/stack' -C ~/.local/bin;
      export PATH=$HOME/.local/bin:$PATH
      # Check if the cache has been corrupted. Delete it if it has.
      stack exec ghc -- --version || rm -fr $(STACK_ROOT)
    displayName: 'Setup'
  - script: |
      stack --install-ghc build $ARGS --only-dependencies --extra-lib-dirs=/usr/local/opt/openblas/lib
      stack --install-ghc build --test $ARGS --only-dependencies
    displayName: 'Install dependencies'
  - script: |
      # stack ./examples/counter.hs check
      stack test $ARGS
    displayName: 'Build & Test'
  - script: |
      stack haddock --no-haddock-deps
    displayName: 'Build documentation'