name: Android build

permissions:
  contents: read
  releases: write

on:
  push:
    branches:
      - '**'
  pull_request:
  release:
    types:
      - published
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 60

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Java 17
        uses: actions/setup-java@v5
        with:
          distribution: temurin
          java-version: '17'

      - name: Install Android SDK command-line tools and packages
        shell: bash
        run: |
          set -euxo pipefail
          export ANDROID_SDK_ROOT="$HOME/.android/sdk"
          export ANDROID_HOME="$ANDROID_SDK_ROOT"
          mkdir -p "$ANDROID_SDK_ROOT/cmdline-tools"
          if [ ! -x "$ANDROID_SDK_ROOT/cmdline-tools/latest/bin/sdkmanager" ]; then
            tools_url="$(curl -fsSL https://developer.android.com/studio | grep -o 'https://dl.google.com/android/repository/commandlinetools-linux-[0-9][0-9]*_latest.zip' | head -n 1)"
            test -n "$tools_url"
            curl -fsSL -o /tmp/commandlinetools.zip "$tools_url"
            rm -rf "$ANDROID_SDK_ROOT/cmdline-tools/latest" "$ANDROID_SDK_ROOT/cmdline-tools/cmdline-tools"
            unzip -q /tmp/commandlinetools.zip -d "$ANDROID_SDK_ROOT/cmdline-tools"
            mv "$ANDROID_SDK_ROOT/cmdline-tools/cmdline-tools" "$ANDROID_SDK_ROOT/cmdline-tools/latest"
          fi
          export PATH="$ANDROID_SDK_ROOT/cmdline-tools/latest/bin:$ANDROID_SDK_ROOT/platform-tools:$PATH"
          set +o pipefail
          yes | sdkmanager --licenses >/dev/null
          set -o pipefail
          sdkmanager \
            "platform-tools" \
            "platforms;android-35" \
            "build-tools;35.0.0"

      - name: Make Gradle wrapper executable
        run: chmod +x gradlew

      - name: Write Android SDK location
        shell: bash
        run: |
          set -euxo pipefail
          printf 'sdk.dir=%s/.android/sdk\n' "$HOME" > local.properties

      - name: Build debug APK
        if: github.event_name != 'release'
        shell: bash
        run: |
          set -euxo pipefail
          export ANDROID_SDK_ROOT="$HOME/.android/sdk"
          export ANDROID_HOME="$ANDROID_SDK_ROOT"
          ./gradlew --no-daemon clean assembleDebug

      - name: Build release AAB
        if: github.event_name == 'release'
        shell: bash
        run: |
          set -euxo pipefail
          export ANDROID_SDK_ROOT="$HOME/.android/sdk"
          export ANDROID_HOME="$ANDROID_SDK_ROOT"
          ./gradlew --no-daemon bundleRelease

      - name: Upload debug APK
        if: github.event_name != 'release'
        uses: actions/upload-artifact@v3
        with:
          name: debug-apk
          path: app/build/outputs/apk/debug/*.apk
          if-no-files-found: error

      - name: Attach release AAB to Gitea release
        if: github.event_name == 'release'
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        shell: bash
        run: |
          set -euxo pipefail
          release_id="$(python3 -c 'import json, os; print(json.load(open(os.environ["GITHUB_EVENT_PATH"], encoding="utf-8"))["release"]["id"])')"
          aab="$(find app/build/outputs/bundle/release -name '*.aab' | head -n 1)"
          curl --fail-with-body \
            --request POST \
            --header "Authorization: token ${GITEA_TOKEN}" \
            --form "attachment=@${aab}" \
            "${GITHUB_SERVER_URL}/api/v1/repos/${GITHUB_REPOSITORY}/releases/${release_id}/assets?name=$(basename "$aab")"