name: Android E2E (CDP)

# On-device end-to-end tests: boots an x86_64 Android emulator (KVM), installs
# a debug APK, and runs the CDP-driven selection lane (pnpm test:android).
# Not PR-blocking: runs nightly, on demand, or when a PR is labeled
# `e2e-android`.

on:
  workflow_dispatch:
  schedule:
    - cron: '30 19 * * *'
  pull_request:
    types: [labeled, synchronize]

concurrency:
  group: android-e2e-${{ github.ref }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  android-e2e:
    if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'e2e-android')
    runs-on: ubuntu-latest
    timeout-minutes: 90
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6

      - name: initialize git submodules
        run: git submodule update --init --recursive

      - name: enable KVM for the emulator
        run: |
          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
          sudo udevadm control --reload-rules
          sudo udevadm trigger --name-match=kvm

      - name: setup pnpm
        uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6

      - name: setup node
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
        with:
          node-version: 24
          cache: pnpm

      - name: setup Java
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5
        with:
          distribution: 'zulu'
          java-version: '17'

      - name: setup Android SDK
        uses: android-actions/setup-android@40fd30fb8d7440372e1316f5d1809ec01dcd3699 # v4

      - name: install NDK
        run: sdkmanager "ndk;28.2.13676358"

      - name: install dependencies
        run: pnpm install --frozen-lockfile --prefer-offline

      - name: copy pdfjs-dist and simplecc-dist to public directory
        run: pnpm --filter @readest/readest-app setup-vendors

      - name: install Rust stable
        uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
        with:
          targets: x86_64-linux-android

      - uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
        with:
          workspaces: apps/readest-app/src-tauri

      - name: create .env.local file for Next.js
        run: |
          echo "NEXT_PUBLIC_APP_PLATFORM=tauri" >> .env.local
          cp .env.local apps/readest-app/.env.local

      - name: build debug APK (x86_64)
        env:
          NDK_HOME: ${{ env.ANDROID_HOME }}/ndk/28.2.13676358
        run: |
          cd apps/readest-app
          # Only the customized files of gen/android are tracked — regenerate
          # the gradle scaffolding, then restore the tracked customizations
          # (same flow as the release workflow).
          rm -rf src-tauri/gen/android
          pnpm tauri android init
          pnpm tauri icon ../../data/icons/readest-book.png
          git checkout .
          # Debug build: signed with the debug keystore, no release secrets
          # needed (gradle only loads keystore.properties when it exists).
          pnpm tauri android build --debug --target x86_64
          APK=$(find src-tauri/gen/android/app/build/outputs/apk -name '*-debug.apk' | head -n 1)
          echo "APK=$PWD/$APK" >> "$GITHUB_ENV"
          test -n "$APK"

      - name: cache AVD snapshot
        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4
        id: avd-cache
        with:
          path: |
            ~/.android/avd/*
            ~/.android/adb*
          key: avd-api-34

      - name: create AVD snapshot for caching
        if: steps.avd-cache.outputs.cache-hit != 'true'
        uses: reactivecircus/android-emulator-runner@e89f39f1abbbd05b1113a29cf4db69e7540cae5a # v2
        with:
          api-level: 34
          arch: x86_64
          target: google_apis
          force-avd-creation: false
          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          disable-animations: false
          script: echo "AVD snapshot created"

      - name: run Android e2e lane
        uses: reactivecircus/android-emulator-runner@e89f39f1abbbd05b1113a29cf4db69e7540cae5a # v2
        with:
          api-level: 34
          arch: x86_64
          target: google_apis
          force-avd-creation: false
          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          disable-animations: true
          script: |
            adb install -r "$APK"
            cd apps/readest-app && pnpm test:android