# This is a reusable workflow used by the master CI
on:
  workflow_call:
    outputs:
      cmdout:
        description: "Post-build command output"
        value: ${{ jobs.build-and-test.outputs.cmdout }}
    inputs:
      arch:
        description: x86_64 or aarch64
        required: true
        type: string
      minimal:
        description: Minimal build
        required: true
        type: boolean
      build_type:
        description: One of 'Debug' or 'Release'
        required: true
        type: string
      git_ref:
        description: Git ref used for checking out the code
        required: true
        type: string
      cmd:
        description: If defined, this command is executed after a successful build and its output is set in the `cmdout` output
        required: false
        default: ''
        type: string
       
jobs:
  build-and-test:
    # See https://github.com/actions/runner/issues/409#issuecomment-1158849936
    runs-on: ${{ (inputs.arch == 'aarch64' && fromJSON('[ "self-hosted", "linux", "ARM64" ]')) || 'ubuntu-22.04' }}
    container: ${{ (inputs.arch == 'aarch64' && 'ubuntu:22.04') || '' }}
    outputs:
      cmdout: ${{ steps.run_cmd.outputs.out }}  
    steps:
      - name: Checkout
        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4.1.0
        with:
          fetch-depth: 0
          ref: ${{ inputs.git_ref }}

      - name: Update base image
        run: sudo apt update -y
      
      - name: Install build dependencies
        run: sudo DEBIAN_FRONTEND=noninteractive apt install libjq-dev libelf-dev libyaml-cpp-dev cmake build-essential git -y

      - name: Install build dependencies (non-minimal)
        if: inputs.minimal != true
        run: sudo DEBIAN_FRONTEND=noninteractive apt install libssl-dev libyaml-dev libc-ares-dev libprotobuf-dev protobuf-compiler libgrpc++-dev protobuf-compiler-grpc rpm libcurl4-openssl-dev linux-headers-$(uname -r) clang llvm -y
      
      - name: Prepare project
        run: |
          mkdir build
          pushd build
          cmake \
            -DBUILD_FALCO_UNIT_TESTS=On \
            -DCMAKE_BUILD_TYPE=${{ inputs.build_type }} \
            -DBUILD_BPF=${{ inputs.minimal == true && 'OFF' || 'ON' }} \
            -DBUILD_DRIVER=${{ inputs.minimal == true && 'OFF' || 'ON' }} \
            -DMINIMAL_BUILD=${{ inputs.minimal == true && 'ON' || 'OFF' }} \
            ..
          popd

      - name: Build
        run: |
          pushd build
          KERNELDIR=/lib/modules/$(uname -r)/build make -j4 all
          popd

      - name: Run unit tests
        run: |
          pushd build
          sudo ./unit_tests/falco_unit_tests 
          popd

      - name: Run command
        id: run_cmd
        if: inputs.cmd != ''
        run: |
          OUT=$(${{ inputs.cmd }})
          echo "out=${OUT}" >> $GITHUB_OUTPUT