ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions:
  contents: read

# Cancel orphaned PR runs when a new commit is pushed; push to main uses SHA so
# main runs never queue or cancel each other.
concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

env:
  AXONFLOW_TELEMETRY: 'off'

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      # PR runs only Java 17 (current release toolchain). Push to main and
      # workflow_dispatch run the full [11, 17, 21] matrix to validate
      # version-specific drift before the next tag. Cuts PR-time wallclock
      # ~2/3 (5.2m → ~2m on the heaviest workflow in the SDK fleet).
      matrix:
        java-version: ${{ fromJson(github.event_name == 'pull_request' && '[17]' || '[11, 17, 21]') }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up JDK ${{ matrix.java-version }}
        uses: actions/setup-java@v4
        with:
          java-version: ${{ matrix.java-version }}
          distribution: 'temurin'
          cache: 'maven'

      - name: Configure Maven mirror
        uses: ./.github/actions/setup-maven

      - name: Build with Maven
        run: |
          for i in 1 2 3; do
            echo "Attempt $i: Building..."
            if mvn clean compile -B -U; then
              echo "Build successful"
              break
            fi
            if [ $i -eq 3 ]; then
              echo "Build failed after 3 attempts"
              exit 1
            fi
            echo "Attempt $i failed, waiting 30 seconds..."
            sleep 30
          done

      - name: Run unit tests
        run: |
          for i in 1 2 3; do
            echo "Attempt $i: Running tests..."
            if mvn test -B; then
              echo "Tests passed"
              break
            fi
            if [ $i -eq 3 ]; then
              echo "Tests failed after 3 attempts"
              exit 1
            fi
            echo "Attempt $i failed, waiting 30 seconds..."
            sleep 30
          done

      - name: Generate coverage report
        if: matrix.java-version == 17
        run: mvn jacoco:report -B

      - name: Upload coverage to Codecov
        if: matrix.java-version == 17
        uses: codecov/codecov-action@v4
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          files: target/site/jacoco/jacoco.xml
          flags: unittests
          name: codecov-java-sdk
          fail_ci_if_error: false

      - name: Check coverage threshold
        if: matrix.java-version == 17
        run: mvn jacoco:check -B

  # Aggregator that always reports a single check name regardless of the
  # matrix shape (PR-time matrix is `[17]`; push/dispatch is `[11, 17, 21]`).
  # Branch protection requires `Build Summary`, not the per-version names,
  # so matrix changes don't strand required checks.
  build-summary:
    name: Build Summary
    needs: [build]
    if: always()
    runs-on: ubuntu-latest
    steps:
      - name: Aggregate build matrix result
        run: |
          result="${{ needs.build.result }}"
          echo "build matrix result: $result"
          if [ "$result" != "success" ] && [ "$result" != "skipped" ]; then
            echo "::error::build matrix did not all pass (result: $result)"
            exit 1
          fi
          echo "Build matrix OK"

  lint:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'temurin'
          cache: 'maven'

      - name: Configure Maven mirror
        uses: ./.github/actions/setup-maven

      - name: Check code formatting
        run: |
          for i in 1 2 3; do
            echo "Attempt $i: Checking formatting..."
            if mvn com.spotify.fmt:fmt-maven-plugin:check -B -U; then
              echo "Formatting check passed"
              break
            fi
            # If it's a formatting error (not network), don't retry
            if [ $i -eq 1 ]; then
              echo "Code formatting check skipped"
              break
            fi
            echo "Attempt $i failed, waiting 30 seconds..."
            sleep 30
          done

  package:
    runs-on: ubuntu-latest
    needs: [build, lint]

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          java-version: '17'
          distribution: 'temurin'
          cache: 'maven'

      - name: Configure Maven mirror
        uses: ./.github/actions/setup-maven

      - name: Package JAR
        run: |
          for i in 1 2 3; do
            echo "Attempt $i: Packaging..."
            if mvn package -DskipTests -B -U; then
              echo "Package successful"
              break
            fi
            if [ $i -eq 3 ]; then
              echo "Package failed after 3 attempts"
              exit 1
            fi
            echo "Attempt $i failed, waiting 30 seconds..."
            sleep 30
          done

      - name: Upload JAR artifact
        uses: actions/upload-artifact@v4
        with:
          name: axonflow-sdk-java
          path: target/*.jar
          retention-days: 7