name: Build Algorithm

on: 
  push:
    branches:
      - 'satisfiability/*'
      - 'vehicle_routing/*'
      - 'knapsack/*'
      - 'vector_search/*'
      - 'hypergraph/*'
      - 'test/satisfiability/*'
      - 'test/vehicle_routing/*'
      - 'test/knapsack/*'
      - 'test/vector_search/*'
      - 'test/hypergraph/*'
      - 'dev/satisfiability/*'
      - 'dev/vehicle_routing/*'
      - 'dev/knapsack/*'
      - 'dev/vector_search/*'
      - 'dev/hypergraph/*'

jobs:
  init:
    runs-on: ubuntu-latest
    outputs:
      SKIP_JOB: ${{ steps.check.outputs.SKIP_JOB }}
      CHALLENGE: ${{ steps.check.outputs.CHALLENGE }}
      ALGORITHM: ${{ steps.check.outputs.ALGORITHM }}
      GPU: ${{ steps.check.outputs.GPU }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      
      - name: Check challenge and algorithm
        id: check
        run: |
          CHALLENGE=`echo $GITHUB_REF_NAME | rev | cut -d/ -f2 | rev`
          ALGORITHM=`echo $GITHUB_REF_NAME | rev | cut -d/ -f1 | rev`
          if [ -f tig-algorithms/lib/${CHALLENGE}/${ALGORITHM}.tar.gz ]; then
            echo "SKIP_JOB=true" >> $GITHUB_OUTPUT
          else
            echo "SKIP_JOB=false" >> $GITHUB_OUTPUT
          fi
          if [ -f tig-algorithms/src/${CHALLENGE}/${ALGORITHM}/benchmarker_outbound.cu ]; then
            echo "GPU=true" >> $GITHUB_OUTPUT
          else
            echo "GPU=false" >> $GITHUB_OUTPUT
          fi          
          echo "CHALLENGE=$CHALLENGE" >> $GITHUB_OUTPUT
          echo "ALGORITHM=$ALGORITHM" >> $GITHUB_OUTPUT
          
  build_aarch64:
    needs: init
    if: needs.init.outputs.SKIP_JOB == 'false'
    name: Compile algorithm on aarch64
    runs-on: ${{ !github.event.repository.private && 'ubuntu-24.04-arm' || 'self-hosted' }}
    steps:
      - uses: actions/checkout@v4

      - name: Build CPU Algorithm
        if: needs.init.outputs.GPU == 'false'
        run: |
          docker run --rm --user root \
            -v ${{ github.workspace }}:/workspace \
            -w /workspace \
            -e CHALLENGE=${{ needs.init.outputs.CHALLENGE }} \
            -e ALGORITHM=${{ needs.init.outputs.ALGORITHM }} \
            ghcr.io/tig-foundation/tig-monorepo/dev:0.0.1-aarch64 \
            bash -c "RUST_TARGET=aarch64-unknown-linux-gnu \
            LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:/usr/local/lib/rust \
            build_so \$CHALLENGE \$ALGORITHM"

      - name: Build GPU Algorithm
        if: needs.init.outputs.GPU == 'true'
        run: |
          docker run --rm --user root \
            -v ${{ github.workspace }}:/workspace \
            -w /workspace \
            -e CHALLENGE=${{ needs.init.outputs.CHALLENGE }} \
            -e ALGORITHM=${{ needs.init.outputs.ALGORITHM }} \
            ghcr.io/tig-foundation/tig-monorepo/dev:0.0.1-aarch64-cuda12.6.3 \
            bash -c "RUST_TARGET=aarch64-unknown-linux-gnu \
            LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:/usr/local/lib/rust \
            build_so \$CHALLENGE \$ALGORITHM --cuda && \
            build_ptx \$CHALLENGE \$ALGORITHM"

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: aarch64
          path: |
            tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}/aarch64
            tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}/ptx

  build_amd64:
    needs: init
    if: needs.init.outputs.SKIP_JOB == 'false'
    name: Compile algorithm on amd64
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v4

      - name: Build CPU Algorithm
        if: needs.init.outputs.GPU == 'false'
        run: |
          docker run --rm --user root \
            -v ${{ github.workspace }}:/workspace \
            -w /workspace \
            -e CHALLENGE=${{ needs.init.outputs.CHALLENGE }} \
            -e ALGORITHM=${{ needs.init.outputs.ALGORITHM }} \
            ghcr.io/tig-foundation/tig-monorepo/dev:0.0.1-amd64 \
            bash -c "RUST_TARGET=x86_64-unknown-linux-gnu \
            LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:/usr/local/lib/rust \
            build_so \$CHALLENGE \$ALGORITHM"

      - name: Build GPU Algorithm
        if: needs.init.outputs.GPU == 'true'
        run: |
          docker run --rm --user root \
            -v ${{ github.workspace }}:/workspace \
            -w /workspace \
            -e CHALLENGE=${{ needs.init.outputs.CHALLENGE }} \
            -e ALGORITHM=${{ needs.init.outputs.ALGORITHM }} \
            ghcr.io/tig-foundation/tig-monorepo/dev:0.0.1-amd64-cuda12.6.3 \
            bash -c "RUST_TARGET=x86_64-unknown-linux-gnu \
            LD_LIBRARY_PATH=\${LD_LIBRARY_PATH}:/usr/local/lib/rust \
            build_so \$CHALLENGE \$ALGORITHM --cuda && \
            build_ptx \$CHALLENGE \$ALGORITHM"

      - name: Upload Artifact
        uses: actions/upload-artifact@v4
        with:
          name: amd64
          path: |
            tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}/amd64
            tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}/ptx

  commit:
    needs: [init, build_aarch64, build_amd64]
    if: always() && needs.init.outputs.SKIP_JOB != 'true'
    runs-on: ubuntu-latest
    permissions:
      contents: write
      statuses: write
    steps:
      - uses: actions/checkout@v3

      - run: |
          git config --global --add safe.directory $(realpath .)

      - name: Download Artifacts
        uses: actions/download-artifact@v4
        if: needs.build_aarch64.result == 'success' && needs.build_amd64.result == 'success'
        with:
          path: tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}
          merge-multiple: true

      - name: Create Tarball
        if: needs.build_aarch64.result == 'success' && needs.build_amd64.result == 'success'
        run: |
          cd tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}
          tar -czf ${{ needs.init.outputs.ALGORITHM }}.tar.gz */
          rm -rf */

      - name: Auto Commit
        if: needs.build_aarch64.result == 'success' && needs.build_amd64.result == 'success'
        id: auto_commit
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: Compiled ${{ needs.init.outputs.CHALLENGE }}/${{ needs.init.outputs.ALGORITHM }}
          file_pattern: tig-algorithms/lib/${{ needs.init.outputs.CHALLENGE }}/${{ needs.init.outputs.ALGORITHM }}.tar.gz

      - name: Update Commit Status (Success)
        if: needs.build_aarch64.result == 'success' && needs.build_amd64.result == 'success'
        uses: myrotvorets/set-commit-status-action@master
        with:
          status: 'success'
          sha: ${{ steps.auto_commit.outputs.commit_hash }}

      - name: Update Commit Status (Failure)
        if: needs.build_aarch64.result != 'success' || needs.build_amd64.result != 'success'
        uses: myrotvorets/set-commit-status-action@master
        with:
          status: 'failure'