name: Build

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

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  # Cancel only when the run is NOT on `main` branch
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

permissions:
  contents: read

env:
  JAVA_VERSION: 21
  JAVA_DISTRIBUTION: temurin
  GRADLE_OPTS: "-Dorg.gradle.daemon=false"

jobs:
  build:
    runs-on: ${{ matrix.os }}
    name: Build (${{ matrix.job-name }})
    timeout-minutes: 30
    permissions:
      contents: read

    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            job-name: "Linux Tests"
            gradle-tasks: "build"
            max-workers: 3

          - os: macos-latest
            job-name: "iOS Simulator tests"
            gradle-tasks: "iosSimulatorArm64Test"
            max-workers: 2

    steps:
      - uses: actions/checkout@v7

      - name: Set up JDK ${{ env.JAVA_VERSION }}
        uses: actions/setup-java@v6
        with:
          java-version: ${{ env.JAVA_VERSION }}
          distribution: ${{ env.JAVA_DISTRIBUTION }}

      - name: Set up Node.js
        if: matrix.os == 'ubuntu-latest'
        uses: actions/setup-node@v7
        with:
          node-version: '22' # increase only after https://github.com/nodejs/node/issues/56645 will be fixed

      - name: Set up Node Packages
        if: matrix.os == 'ubuntu-latest'
        working-directory: integration-test/src/jvmTest/typescript
        run: npm ci

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v6.3.0
        with:
          validate-wrappers: true
          add-job-summary: 'always'
          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
          gradle-home-cache-includes: |
            caches
            notifications
            ../.konan/**

      - name: ${{ matrix.job-name }}
        run: |-
          ./gradlew ${{ matrix.gradle-tasks }} --max-workers ${{ matrix.max-workers }} --continue --rerun-tasks

      - name: Coverage Report
        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
        run: ./gradlew koverLog koverHtmlReport koverXmlReport

      - name: Publish to Maven Local
        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
        run: ./gradlew publishToMavenLocal -Pversion=1-SNAPSHOT

      - name: Upload Reports
        if: failure()
        uses: actions/upload-artifact@v7
        with:
          name: reports-build-${{ matrix.os }}
          path: |
            **/build/reports/

      - name: Publish Test Report
        uses: mikepenz/action-junit-report@v6
        if: always()
        with:
          annotate_only: true
          detailed_summary: true
          group_suite: true
          include_empty_in_summary: false
          report_paths: '**/test-results/**/TEST-*.xml'
          truncate_stack_traces: false


      - name: Archive Maven Local Repository
        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
        run: |
          cd ~/.m2/repository/io/modelcontextprotocol && zip -r $GITHUB_WORKSPACE/local-maven-repository.zip .

      - name: Upload Maven Local Repository
        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
        uses: actions/upload-artifact@v7
        with:
          name: local-maven-repository
          path: local-maven-repository.zip
          retention-days: 1

  knit:
    runs-on: ubuntu-latest
    name: Knit
    timeout-minutes: 10
    permissions:
      contents: read

    steps:
      - uses: actions/checkout@v7

      - name: Set up JDK ${{ env.JAVA_VERSION }}
        uses: actions/setup-java@v6
        with:
          java-version: ${{ env.JAVA_VERSION }}
          distribution: ${{ env.JAVA_DISTRIBUTION }}

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v6.3.0
        with:
          validate-wrappers: true
          add-job-summary: 'always'
          cache-read-only: ${{ github.ref != 'refs/heads/main' }}
          gradle-home-cache-includes: |
            caches
            notifications
            sdks
            ../.konan/**

      - name: Run Knit
        run: |-
          ./gradlew knit docs:classes docs:knitCheck --max-workers 3 --continue --rerun-tasks


  samples:
    needs: [ build ]
    runs-on: ubuntu-latest
    permissions:
      contents: read
    strategy:
      fail-fast: false
      matrix:
        sample:
          - kotlin-mcp-client
          - kotlin-mcp-server
          - simple-streamable-server
          - weather-stdio-server

    name: "Build Sample: ${{ matrix.sample }}"
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v7

      - name: Set up JDK ${{ env.JAVA_VERSION }}
        uses: actions/setup-java@v6
        with:
          java-version: ${{ env.JAVA_VERSION }}
          distribution: ${{ env.JAVA_DISTRIBUTION }}

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v6.3.0
        with:
          add-job-summary: 'always'
          cache-read-only: true
          gradle-home-cache-includes: |
            caches
            notifications
            sdks
            ../.konan/**

      - name: Download Maven Local Repository
        uses: actions/download-artifact@v8
        with:
          name: local-maven-repository
          path: .

      - name: Extract Maven Local Repository
        run: |
          mkdir -p ~/.m2/repository/io/modelcontextprotocol
          unzip -o local-maven-repository.zip -d ~/.m2/repository/io/modelcontextprotocol

      - name: "Build Sample: ${{ matrix.sample }}"
        working-directory: ./samples/${{ matrix.sample }}
        run: ./gradlew build -Pmcp.kotlin.overrideVersion=1-SNAPSHOT --rerun-tasks

      - name: Upload Reports
        if: ${{ !cancelled() }}
        uses: actions/upload-artifact@v7
        with:
          name: reports-samples-snapshot-${{ matrix.sample }}
          path: |
            **/build/reports/