name: PR Checks

on:
  pull_request:
    types: [opened, reopened, synchronize]
    branches:
      - master
    paths-ignore:
      - '**/*.md'
      - 'fastlane/**'
      - 'static/**'
      - 'captures/**'
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Compile (app:assembleDebug)
    runs-on: ubuntu-latest
    timeout-minutes: 30
    if: ${{ github.event_name != 'pull_request' || !github.event.pull_request.draft }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1
          persist-credentials: false

      - name: Validate Gradle Wrapper
        uses: gradle/wrapper-validation-action@v2

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

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

      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          gradle-version: wrapper
          cache-read-only: ${{ github.event_name == 'pull_request' }}
          gradle-home-cache-cleanup: true

      - name: Make gradlew executable
        run: chmod +x ./gradlew

      - name: Build debug APK (skip lint/tests)
        run: ./gradlew :app:assembleDebug -x lint -x test --stacktrace