name: Android CI/CD

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
  GRADLE_CACHE_ENCRYPTED_KEY: ${{ secrets.GRADLE_ENCRYPTED_KEY }}

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

# Cancel in-progress runs on the same ref when a new commit lands.
concurrency:
  group: ci-${{ github.ref }}
  cancel-in-progress: true

jobs:
  # ─────────────────────────────────────────────────────────────────────
  # Job 1: ktlint (code style) — fastest feedback, runs in parallel.
  # ─────────────────────────────────────────────────────────────────────
  ktlint:
    name: ktlint — Code Style
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Validate Gradle Wrapper
        uses: gradle/wrapper-validation-action@v3

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

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTED_KEY }}

      - name: Grant Execute Permission for Gradlew
        run: chmod +x gradlew

      - name: Cache ktlint
        id: cache-ktlint
        uses: actions/cache@v4
        with:
          path: ~/.local/bin/ktlint
          key: ktlint-1.2.1

      - name: Install ktlint
        if: steps.cache-ktlint.outputs.cache-hit != 'true'
        run: |
          mkdir -p ~/.local/bin
          curl -sSLO https://github.com/pinterest/ktlint/releases/download/1.2.1/ktlint
          chmod +x ktlint
          mv ktlint ~/.local/bin/

      - name: Add local bin to PATH
        run: echo "$HOME/.local/bin" >> $GITHUB_PATH

      - name: Run ktlintCheck
        run: ./gradlew ktlintCheck

      - name: Upload ktlint reports
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: ktlint-reports
          path: |
            app/build/reports/ktlint/
            build/reports/ktlint/
          if-no-files-found: ignore
          retention-days: 7

  # ─────────────────────────────────────────────────────────────────────
  # Job 2: Android Lint (static analysis) — runs in parallel with ktlint.
  # Depends on compileDebugKotlin, so it also catches unresolved refs.
  # ─────────────────────────────────────────────────────────────────────
  android-lint:
    name: Android Lint — Static Analysis
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Validate Gradle Wrapper
        uses: gradle/wrapper-validation-action@v3

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

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTED_KEY }}

      - name: Grant Execute Permission for Gradlew
        run: chmod +x gradlew

      - name: Run lintDebug
        run: ./gradlew lintDebug

      - name: Upload lint reports
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: lint-reports
          path: app/build/reports/lint-results-debug.*
          retention-days: 7

  # ─────────────────────────────────────────────────────────────────────
  # Job 3: Unit tests — runs in parallel with ktlint & android-lint.
  # ─────────────────────────────────────────────────────────────────────
  unit-tests:
    name: Unit & Integration Tests
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Validate Gradle Wrapper
        uses: gradle/wrapper-validation-action@v3

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

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTED_KEY }}

      - name: Grant Execute Permission for Gradlew
        run: chmod +x gradlew

      - name: Run test
        run: ./gradlew test

      - name: Upload test reports
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-reports
          path: app/build/reports/tests/
          retention-days: 7

  # ─────────────────────────────────────────────────────────────────────
  # Job 4: Build Debug APK — depends on all three above passing.
  # ─────────────────────────────────────────────────────────────────────
  build:
    name: Build Debug APK
    needs: [ktlint, android-lint, unit-tests]
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Validate Gradle Wrapper
        uses: gradle/wrapper-validation-action@v3

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

      - name: Setup Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-encryption-key: ${{ secrets.GRADLE_ENCRYPTED_KEY }}

      - name: Grant Execute Permission for Gradlew
        run: chmod +x gradlew

      - name: Build assembleDebug
        run: ./gradlew assembleDebug

      - name: Upload Debug APK Artifact
        if: success()
        uses: actions/upload-artifact@v4
        with:
          name: hermescontrol-debug-apk
          path: app/build/outputs/apk/debug/app-debug.apk
          if-no-files-found: error
          retention-days: 7

  # ─────────────────────────────────────────────────────────────────────
  # Job 5: PR status summary — posts a single check that aggregates the
  # others, so GitHub branch protection only needs one status check.
  # ─────────────────────────────────────────────────────────────────────
  ci-summary:
    name: CI Summary
    needs: [ktlint, android-lint, unit-tests, build]
    runs-on: ubuntu-latest
    timeout-minutes: 2
    if: always()
    steps:
      - name: Check job results
        env:
          KTLINT_RESULT: ${{ needs.ktlint.result }}
          LINT_RESULT: ${{ needs.android-lint.result }}
          TEST_RESULT: ${{ needs.unit-tests.result }}
          BUILD_RESULT: ${{ needs.build.result }}
        run: |
          echo "::notice::ktlint=$KTLINT_RESULT, android-lint=$LINT_RESULT, tests=$TEST_RESULT, build=$BUILD_RESULT"
          if [[ "$KTLINT_RESULT" != "success" || "$LINT_RESULT" != "success" || "$TEST_RESULT" != "success" || "$BUILD_RESULT" != "success" ]]; then
            echo "::error::One or more CI jobs failed"
            exit 1
          fi
          echo "All CI jobs passed ✅"