name: Testing E2E Android

on:
  workflow_dispatch:
    inputs:
      clearCaches:
        description: "Clear workflow caches where possible"
        required: false
        type: string

  pull_request:
    branches:
      - '**'
    paths-ignore:
      - 'docs/**'
      - 'website/**'
      - '.spellcheck.dict.txt'
      # - '**/*.md'

  push:
    branches:
      - master
    paths-ignore:
      - 'docs/**'
      - 'website/**'
      - '.spellcheck.dict.txt'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  android:
    name: Android
    runs-on: macos-12
    timeout-minutes: 90
    strategy:
      fail-fast: false
      matrix:
        # Refactor to make these dynamic with a low/high bracket only on schedule, not push
        # For now this is just the fastest combo (api/arch/target/snapshot-warm-time) based on testing
        api-level: [30]
        arch: [x86_64]
        target: [google_apis]
        first-boot-delay: [600]
        # This is useful for benchmarking, do 0, 1, 2, etc (up to 256 max job-per-matrix limit) for averages
        iteration: [0]
    env:
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
      EMULATOR_COMMAND: "-avd TestingAVD -noaudio -gpu swiftshader_indirect -camera-back none -no-snapshot -no-window -no-boot-anim -nojni -memory 2048 -timezone 'Europe/London' -cores 2"
      EMULATOR_EXECUTABLE: qemu-system-x86_64-headless
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 50

      # Set up tool versions
      - uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Configure JDK 1.11
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '11'

      # Set path variables needed for caches
      - name: Set workflow variables
        id: workflow-variables
        run: |
          echo "metro-cache=$HOME/.metro" >> $GITHUB_OUTPUT
          echo "yarn-cache-dir=$(yarn cache dir)" >> $GITHUB_OUTPUT
          echo "tempdir=$TMPDIR" >> $GITHUB_OUTPUT

      - uses: actions/cache@v3
        name: Yarn Cache
        id: yarn-cache
        with:
          path: ${{ steps.workflow-variables.outputs.yarn-cache-dir }}
          key: ${{ runner.os }}-yarn-v1-${{ hashFiles('yarn.lock') }}
          restore-keys: ${{ runner.os }}-yarn-v1

      - name: Yarn Install
        uses: nick-invision/retry@v2
        with:
          timeout_minutes: 10
          retry_wait_seconds: 60
          max_attempts: 3
          command: DETOX_DISABLE_POSTINSTALL=1 yarn --no-audit --prefer-offline

      - name: Cache pushy Emulator
        uses: actions/cache@v3
        with:
          path: ~/.cache/pushy/emulators
          key: pushy-emulators-v1-${{ github.run_id }}
          restore-keys: pushy-emulators-v1

      - name: Start pushy Emulator
        run: yarn tests:emulator:start-ci

      - uses: actions/cache@v3
        name: Gradle Cache
        with:
          path: ~/.gradle/caches
          key: ${{ runner.os }}-gradle-v1-${{ hashFiles('**/*.gradle*') }}
          restore-keys: ${{ runner.os }}-gradle-v1

        # This appears to be 'Cache Size: ~1230 MB (1290026823 B)' based on watching action logs
        # Repo limit is 10GB; branch caches are independent; branches may read default branch cache.
        # We don't want branches to evict master branch snapshot, so save on master, read-only all else
      - name: AVD cache
        uses: actions/cache@v3
        id: avd-cache
        with:
          path: |
            ~/.android/avd/*
            ~/.android/adb*
          key: avd-${{ matrix.api-level }}-${{ matrix.arch }}-${{matrix.target}}-v1-${{ github.event.inputs.clearCaches }}
          restore-keys: |
            avd-${{ matrix.api-level }}-${{ matrix.arch }}-${{matrix.target}}-v1

      - name: Clear Caches Optionally
        if: "${{ github.event.inputs.clearCaches != '' }}"
        shell: bash
        run: |
          du -sk ~/.gradle
          du -sk ~/.android
          rm -fr ~/.gradle
          rm -fr ~/.android
          du -sk ~/.gradle || echo ~/.gradle is gone
          du -sk ~/.android || echo ~/.android is gone

      - name: Build Android App
        uses: nick-invision/retry@v2
        with:
          timeout_minutes: 25
          retry_wait_seconds: 60
          max_attempts: 3
          command: yarn build:android-release

      - name: Metro Bundler Cache
        uses: actions/cache@v3
        with:
          path: ${{ steps.workflow-variables.outputs.metro-cache }}
          key: ${{ runner.os }}-metro-v1-${{ github.run_id }}
          restore-keys: ${{ runner.os }}-metro-v1

      - name: AVD Boot and Snapshot Creation
        # Only generate a snapshot with a cache miss
        # Comment the if out to generate snapshots on branch for performance testing
        if: "${{ github.event.inputs.clearCaches != '' || (steps.avd-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/master') }}"
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: ${{ matrix.api-level }}
          avd-name: TestingAVD
          force-avd-creation: false
          target: ${{ matrix.target }}
          arch: ${{ matrix.arch }}
          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          sdcard-path-or-size: 100M
          disable-animations: true
          # Give the emulator a little time to run and do first boot stuff before taking snapshot
          script: |
            $ANDROID_HOME/platform-tools/adb logcat '*:D' -d > adb-snapshot-log.txt
            $ANDROID_HOME/platform-tools/adb logcat --clear
            echo "Generated AVD snapshot for caching."

        # This step is separate so pure install time may be calculated as a step
      - name: Emulator Snapshot After Firstboot Warmup
        # Only generate a snapshot for saving with a cache miss
        # Switch the if statements via comment if generating snapshots for performance testing
        # if: matrix.first-boot-delay != '0'
        if: "${{ github.event.inputs.clearCaches != '' || (steps.avd-cache.outputs.cache-hit != 'true' && github.ref == 'refs/heads/master') }}"
        env:
          FIRST_BOOT_DELAY: ${{ matrix.first-boot-delay }}
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: ${{ matrix.api-level }}
          avd-name: TestingAVD
          force-avd-creation: false
          target: ${{ matrix.target }}
          arch: ${{ matrix.arch }}
          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          sdcard-path-or-size: 100M
          disable-animations: true
          # Give the emulator a little time to run and do first boot stuff before taking snapshot
          # The zygote restart makes sure zygote has correct heap size as a workaround for android emulator init bug
          script: |
            $ANDROID_HOME/platform-tools/adb shell su root "setprop ctl.restart zygote"
            sleep $FIRST_BOOT_DELAY
            $ANDROID_HOME/platform-tools/adb logcat '*:D' -d > adb-warmup-log.txt
            $ANDROID_HOME/platform-tools/adb logcat --clear
            echo "First boot warmup completed."

      - name: Test Tapper
        # Run this outside the emulator runner so the emulator runner does not wait on it for cleanup
        run: |
          nohup sh -c "until false; do $ANDROID_HOME/platform-tools/adb shell input tap 100 800; sleep 0.2; done" &
        shell: bash

      - name: Detox Tests
        uses: reactivecircus/android-emulator-runner@v2
        timeout-minutes: 60
        with:
          api-level: ${{ matrix.api-level }}
          avd-name: TestingAVD
          force-avd-creation: false
          target: ${{ matrix.target }}
          arch: ${{ matrix.arch }}
          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          sdcard-path-or-size: 100M
          disable-animations: true
          # Detox uses Espresso to choreograph steps in reaction to UI events, so we need to send a stream of taps.
          script: |
            $ANDROID_HOME/platform-tools/adb devices
            nohup sh -c "$ANDROID_HOME/platform-tools/adb logcat '*:D' > adb-log.txt" &
            sudo yarn test:android-release