name: Stockfish
on:
  push:
    tags:
      - "*"
    branches:
      - master
      - tools
      - github_ci
  pull_request:
    branches:
      - master
      - tools

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  Prerelease:
    name: Prerelease
    if: github.repository == 'official-stockfish/Stockfish' && (github.ref == 'refs/heads/master' || (startsWith(github.ref_name, 'sf_') && github.ref_type == 'tag'))
    runs-on: ubuntu-latest
    needs: [Matrix, ARMCompilation, UniversalCompilation]
    permissions:
      contents: write # For deleting/creating a prerelease
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
          fetch-depth: 0

      # returns null if no pre-release exists
      - name: Get Commit SHA of Latest Pre-release
        run: |
          # Install required packages
          sudo apt-get update
          sudo apt-get install -y curl jq

          echo "COMMIT_SHA_TAG=$(jq -r 'map(select(.prerelease)) | first | .tag_name' <<< $(curl -s https://api.github.com/repos/${{ github.repository_owner }}/Stockfish/releases))" >> $GITHUB_ENV

      # delete old previous pre-release and tag
      - run: gh release delete ${{ env.COMMIT_SHA_TAG }} --cleanup-tag
        if: env.COMMIT_SHA_TAG != 'null'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # Make sure that an old ci that still runs on master doesn't recreate a prerelease
      - name: Check Pullable Commits
        id: check_commits
        run: |
          git fetch
          CHANGES=$(git rev-list HEAD..origin/master --count)
          echo "CHANGES=$CHANGES" >> $GITHUB_ENV

      - name: Get last commit SHA
        id: last_commit
        run: echo "COMMIT_SHA=$(git rev-parse HEAD | cut -c 1-8)" >> $GITHUB_ENV

      - name: Get commit date
        id: commit_date
        run: echo "COMMIT_DATE=$(git show -s --date=format:'%Y%m%d' --format=%cd HEAD)" >> $GITHUB_ENV

      - name: Official Release?
        id: official_release
        # Check for "Official release version of Stockfish" in the commit message
        run: |
          if git log -1 --pretty=%B | grep -q "Official release version of Stockfish"; then
            echo "OFFICIAL_RELEASE=true" >> $GITHUB_ENV
          else
            echo "OFFICIAL_RELEASE=false" >> $GITHUB_ENV
          fi

      # Get recent commits for release body
      - name: Get commits in this push
        id: recent_commits
        run: |
          COMMITS=$(git log \
            --format="- [\`%h\`](https://github.com/${{ github.repository }}/commit/%H) *%s*" \
            ${{ github.event.before }}..HEAD)
          echo "COMMITS<<EOF" >> $GITHUB_OUTPUT
          echo "$COMMITS" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      # Create a new pre-release, the other upload_binaries.yml will upload the binaries
      # to this pre-release.
      - name: Create Prerelease
        if: github.ref_name == 'master' && env.CHANGES == '0' && env.OFFICIAL_RELEASE == 'false'
        uses: softprops/action-gh-release@b4309332981a82ec1c5618f44dd2e27cc8bfbfda # v3.0.0
        with:
          name: Stockfish dev-${{ env.COMMIT_DATE }}-${{ env.COMMIT_SHA }}
          tag_name: stockfish-dev-${{ env.COMMIT_DATE }}-${{ env.COMMIT_SHA }}
          prerelease: true
          body: |
            Precompiled binaries of the latest Stockfish development version, built automatically on every commit.
            
            > [!NOTE]
            > For stable, thoroughly tested builds use the [official releases](https://github.com/official-stockfish/Stockfish/releases).
            > Pre-releases may contain bugs.
            
            *Some platforms ship a **universal binary** that automatically selects the best
            instruction set for your CPU - no manual selection needed.*
            
            ---
            
            ## Commits
            
            ${{ steps.recent_commits.outputs.COMMITS }}
            
            [View all commits →](https://github.com/${{ github.repository }}/commits/master)
  Matrix:
    name: Prepare matrices
    runs-on: ubuntu-latest
    outputs:
      arm_matrix: ${{ steps.set-arm-matrix.outputs.arm_matrix }}
      universal_matrix: ${{ steps.set-universal-matrix.outputs.universal_matrix }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false
      - id: set-arm-matrix
        run: |
          ARM_MATRIX=$(jq -c '.' .github/ci/arm_matrix.json)
          echo "ARM_MATRIX=$ARM_MATRIX" >> $GITHUB_OUTPUT
      - id: set-universal-matrix
        run: |
          UNIVERSAL_MATRIX=$(jq -c '.' .github/ci/universal_matrix.json)
          echo "UNIVERSAL_MATRIX=$UNIVERSAL_MATRIX" >> $GITHUB_OUTPUT
  # Testing Jobs
  IWYU:
    name: IWYU
    uses: ./.github/workflows/iwyu.yml
  Sanitizers:
    name: Sanitizers
    if: ${{ always() }}
    uses: ./.github/workflows/sanitizers.yml
  Tests:
    name: Tests
    if: ${{ always() }}
    uses: ./.github/workflows/tests.yml
  Matetrack:
    name: Matetrack
    if: ${{ always() }}
    uses: ./.github/workflows/matetrack.yml
  Games:
    name: Games
    if: ${{ always() }}
    uses: ./.github/workflows/games.yml
  CompilerCheck:
    name: Compiler check
    if: ${{ always() }}
    uses: ./.github/workflows/avx2_compilers.yml
  # Release Jobs
  ARMCompilation:
    name: Android builds
    needs: [Matrix, Sanitizers, Tests, Matetrack, Games, CompilerCheck]
    uses: ./.github/workflows/arm_compilation.yml
    with:
      matrix: ${{ needs.Matrix.outputs.arm_matrix }}
  UniversalCompilation:
    name: "Universal builds"
    needs: [Matrix, Sanitizers, Tests, Matetrack, Games, CompilerCheck]
    uses: ./.github/workflows/universal_compilation.yml
  ARM_Binaries:
    if: github.repository == 'official-stockfish/Stockfish'
    name: Android uploads
    needs: [Prerelease, Matrix]
    uses: ./.github/workflows/upload_binaries.yml
    with:
      matrix: ${{ needs.Matrix.outputs.arm_matrix }}
    permissions:
      contents: write # For deleting/creating a (pre)release
    secrets:
      token: ${{ secrets.GITHUB_TOKEN }}
  Universal_Binaries:
    if: github.repository == 'official-stockfish/Stockfish'
    name: Universal binaries
    needs: [Prerelease, Matrix]
    uses: ./.github/workflows/upload_binaries.yml
    with:
      matrix: ${{ needs.Matrix.outputs.universal_matrix }}
    permissions:
      contents: write # For deleting/creating a (pre)release
    secrets:
      token: ${{ secrets.GITHUB_TOKEN }}