workflow-validation.yml

---
name: Workflow Validation

on:
  workflow_dispatch:
    inputs:
      test_type:
        description: 'Type of validation test to run'
        required: true
        default: 'all'
        type: choice
        options:
          - all
          - matrix-builds
          - artifact-generation
          - deployment-test
      java_versions:
        description: 'Java versions to test (comma-separated)'
        required: false
        default: '21,22,23'
        type: string

env:
  MAVEN_OPTS: >-
    -Dhttp.keepAlive=false -Dmaven.wagon.http.pool=false
    -Dmaven.wagon.http.retryHandler.class=standard
    -Dmaven.wagon.http.retryHandler.count=3
  MAVEN_SETTINGS: ${{ github.workspace }}/settings.xml

jobs:
  validation-setup:
    name: Validation Setup
    runs-on: ubuntu-latest
    outputs:
      java-versions: ${{ steps.setup.outputs.java-versions }}
      test-matrix-builds: ${{ steps.setup.outputs.test-matrix-builds }}
      test-artifact-generation: >-
        ${{ steps.setup.outputs.test-artifact-generation }}
      test-deployment: ${{ steps.setup.outputs.test-deployment }}

    steps:
      - name: Setup test configuration
        id: setup
        run: |
          # Parse Java versions
          JAVA_VERSIONS="${{ github.event.inputs.java_versions || '21,22,23' }}"
          JAVA_ARRAY=$(echo $JAVA_VERSIONS | jq -R -s -c \
            'split(",") | map(select(length > 0))')
          echo "java-versions=$JAVA_ARRAY" >> $GITHUB_OUTPUT

          # Determine which tests to run
          TEST_TYPE="${{ github.event.inputs.test_type || 'all' }}"

          if [[ "$TEST_TYPE" == "all" || "$TEST_TYPE" == "matrix-builds" ]]; then
            echo "test-matrix-builds=true" >> $GITHUB_OUTPUT
          else
            echo "test-matrix-builds=false" >> $GITHUB_OUTPUT
          fi

          if [[ "$TEST_TYPE" == "all" || "$TEST_TYPE" == "artifact-generation" ]]; then
            echo "test-artifact-generation=true" >> $GITHUB_OUTPUT
          else
            echo "test-artifact-generation=false" >> $GITHUB_OUTPUT
          fi

          if [[ "$TEST_TYPE" == "all" || "$TEST_TYPE" == "deployment-test" ]]; then
            echo "test-deployment=true" >> $GITHUB_OUTPUT
          else
            echo "test-deployment=false" >> $GITHUB_OUTPUT
          fi

          echo "Configuration:"
          echo "- Java versions: $JAVA_ARRAY"

  matrix-build-validation:
    name: Matrix Build Validation (Java ${{ matrix.java-version }})
    runs-on: ubuntu-latest
    needs: validation-setup
    if: needs.validation-setup.outputs.test-matrix-builds == 'true'

    strategy:
      matrix:
        java-version: ${{ fromJson(needs.validation-setup.outputs.java-versions) }}
      fail-fast: false

    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'

      - name: Cache Maven dependencies
        uses: actions/cache@v4
        with:
          path: ~/.m2/repository
          key: >-
            validation-${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            validation-${{ runner.os }}-maven-

      - name: Validate Maven project
        run: |
          echo "=== Validating project with Java ${{ matrix.java-version }} ==="
          mvn validate -s settings.xml

      - name: Compile project
        run: |
          echo "=== Compiling project with Java ${{ matrix.java-version }} ==="
          mvn clean compile -s settings.xml

      - name: Run unit tests
        run: |
          echo "=== Running unit tests with Java ${{ matrix.java-version }} ==="
          mvn test -s settings.xml

      - name: Upload validation results
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: matrix-validation-java-${{ matrix.java-version }}
          path: |
            target/surefire-reports/
            target/baseline-results/
          retention-days: 7

  artifact-generation-validation:
    name: Artifact Generation Validation
    runs-on: ubuntu-latest
    needs: validation-setup
    if: needs.validation-setup.outputs.test-artifact-generation == 'true'

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

      - name: Set up JDK 21
        uses: actions/setup-java@v4
        with:
          java-version: '21'
          distribution: 'temurin'

      - name: Cache Maven dependencies
        uses: actions/cache@v4
        with:
          path: ~/.m2/repository
          key: >-
            validation-${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            validation-${{ runner.os }}-maven-

      - name: Build and package
        run: |
          echo "=== Building and packaging project ==="
          mvn clean package -DskipTests -s settings.xml

      - name: Validate main JAR artifact
        run: |
          echo "=== Validating main JAR artifact ==="

          # Check if main JAR exists
          if [ ! -f "target/javamail4ews.jar" ]; then
            echo "ERROR: Main JAR file not found"
            exit 1
          fi

          # Check JAR size (should be reasonable)
          JAR_SIZE=$(stat -f%z target/javamail4ews.jar 2>/dev/null || \
            stat -c%s target/javamail4ews.jar)
          echo "Main JAR size: $JAR_SIZE bytes"

          if [ $JAR_SIZE -lt 1000 ]; then
            echo "ERROR: JAR file seems too small"
            exit 1
          fi

          echo "SUCCESS: Main JAR validation passed"

      - name: Upload artifact validation results
        uses: actions/upload-artifact@v4
        with:
          name: artifact-validation-results
          path: |
            target/javamail4ews.jar
            target/lib/
          retention-days: 7

  validation-summary:
    name: Validation Summary
    runs-on: ubuntu-latest
    needs: [validation-setup, matrix-build-validation, artifact-generation-validation]
    if: always()

    steps:
      - name: Generate validation report
        run: |
          echo "# GitHub Actions Workflow Validation Report" > validation-report.md
          echo "" >> validation-report.md
          echo "**Validation Date:** $(date)" >> validation-report.md
          echo "**Test Type:** ${{ github.event.inputs.test_type || 'all' }}" \
            >> validation-report.md
          echo "" >> validation-report.md

          echo "## Test Results" >> validation-report.md
          echo "" >> validation-report.md

          # Matrix build validation
          if [ "${{ needs.validation-setup.outputs.test-matrix-builds }}" == "true" ]; then
            if [ "${{ needs.matrix-build-validation.result }}" == "success" ]; then
              echo "✅ **Matrix Build Validation:** PASSED" >> validation-report.md
            else
              echo "❌ **Matrix Build Validation:** FAILED" >> validation-report.md
            fi
          else
            echo "⏭️ **Matrix Build Validation:** SKIPPED" >> validation-report.md
          fi

          echo "Validation report generated:"
          cat validation-report.md

      - name: Upload validation report
        uses: actions/upload-artifact@v4
        with:
          name: validation-report
          path: validation-report.md
          retention-days: 30