name: CI

# Pre-merge checks. Runs on the dev branch and on every pull request aimed at
# dev or main, so breakage is caught before it reaches main and triggers a
# release. Builds the same debug APK as the release pipeline, but publishes it
# only as a workflow artifact — no tag, no GitHub Release.
on:
  push:
    branches: [ dev ]
  pull_request:
    branches: [ main, dev ]
  workflow_dispatch:

permissions:
  contents: read

# A newer push to the same branch or PR makes the in-flight run obsolete.
concurrency:
  group: ci-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build and check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Set up Android SDK
        uses: android-actions/setup-android@v3

      - name: Build debug APK
        run: ./gradlew assembleDebug --no-daemon

      - name: Run unit tests
        run: ./gradlew testDebugUnitTest --no-daemon

      - name: Run Android lint
        run: ./gradlew lintDebug --no-daemon

      - name: Upload debug APK
        uses: actions/upload-artifact@v4
        with:
          name: ProLibertateGames-debug-apk
          path: app/build/outputs/apk/debug/app-debug.apk
          if-no-files-found: error
          retention-days: 14

      - name: Upload lint and test reports
        # Reports are most useful precisely when a step above failed.
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: ProLibertateGames-reports
          path: |
            app/build/reports/
          if-no-files-found: ignore
          retention-days: 14