name: Build & Release APK

on:
  push:
    branches: [main]

jobs:
  build:
    # RN/NDK builds need ~6GB and once took down the 8GB VPS — desktop runner only.
    # Jobs queue while the desktop is offline.
    runs-on: desktop
    container:
      image: eclipse-temurin:21-jdk
    steps:
      # actions/checkout needs node, which this container lacks — clone directly
      - name: Checkout
        run: |
          apt-get update -qq && apt-get install -y -qq git unzip curl xz-utils >/dev/null
          git init -q .
          git fetch -q --depth 1 "https://git.rehbock.xyz/${{ github.repository }}.git" "${{ github.sha }}"
          git checkout -q FETCH_HEAD

      # /root/.npm and /root/.gradle and /root/android-sdk are persistent named
      # volumes (act_runner config.yaml) — downloads below only happen on a cold cache.
      - name: Install Node 22 (cached in npm volume)
        run: |
          NODE_DIR="$HOME/.npm/_node-v22.14.0"
          if [ ! -x "$NODE_DIR/bin/node" ]; then
            curl -sLo /tmp/node.tar.xz https://nodejs.org/dist/v22.14.0/node-v22.14.0-linux-x64.tar.xz
            mkdir -p "$NODE_DIR" && tar xJf /tmp/node.tar.xz -C "$NODE_DIR" --strip-components=1
          fi
          echo "$NODE_DIR/bin" >> "$GITHUB_PATH"
          "$NODE_DIR/bin/node" --version

      - name: npm ci
        run: npm ci --no-audit --no-fund

      - name: Install Android SDK + NDK (cached volume)
        run: |
          SDK="$HOME/android-sdk"
          SDKMAN="$SDK/cmdline-tools/latest/bin/sdkmanager"
          if [ ! -x "$SDKMAN" ]; then
            mkdir -p "$SDK/cmdline-tools"
            curl -sLo /tmp/ct.zip https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
            unzip -q /tmp/ct.zip -d /tmp
            mv /tmp/cmdline-tools "$SDK/cmdline-tools/latest"
          fi
          yes | "$SDKMAN" --sdk_root="$SDK" --licenses >/dev/null 2>&1 || true
          "$SDKMAN" --sdk_root="$SDK" \
            "platform-tools" "platforms;android-36" "build-tools;36.0.0" \
            "ndk;27.1.12297006" "cmake;3.22.1" >/dev/null

      - name: Decode signing keystore
        env:
          KEYSTORE_B64: ${{ secrets.KEYSTORE_B64 }}
        run: echo "$KEYSTORE_B64" | base64 -d > /tmp/release.jks

      - name: Prebuild android project
        env:
          VERSION_CODE: ${{ github.run_number }}
          VERSION_NAME: 1.0.${{ github.run_number }}
        run: npx expo prebuild --platform android --no-install

      - name: Build signed release APK (arm64)
        env:
          HEALTH_KEYSTORE: /tmp/release.jks
          KEYSTORE_PASSWORD: ${{ secrets.KEYSTORE_PASSWORD }}
          KEY_ALIAS: health
          VERSION_CODE: ${{ github.run_number }}
          VERSION_NAME: 1.0.${{ github.run_number }}
        run: |
          export ANDROID_HOME="$HOME/android-sdk"
          echo "sdk.dir=$ANDROID_HOME" > android/local.properties
          cd android && ./gradlew assembleRelease -PreactNativeArchitectures=arm64-v8a \
            --no-daemon --console=plain

      - name: Publish Gitea release with APK
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          API="https://git.rehbock.xyz/api/v1/repos/${{ github.repository }}"
          TAG="v1.0.${{ github.run_number }}"
          APK=android/app/build/outputs/apk/release/app-release.apk
          test -f "$APK"
          curl -sf -X POST "$API/releases" \
            -H "Authorization: token $TOKEN" -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"$TAG\",\"name\":\"$TAG\",\"body\":\"Automated build of commit ${{ github.sha }}\",\"target_commitish\":\"${{ github.sha }}\"}" \
            > /tmp/release.json
          RID=$(grep -o '"id":[0-9]*' /tmp/release.json | head -1 | cut -d: -f2)
          echo "release id: $RID"
          curl -sf -X POST "$API/releases/$RID/assets?name=health-app-$TAG-arm64.apk" \
            -H "Authorization: token $TOKEN" \
            -F "attachment=@$APK;type=application/vnd.android.package-archive" >/dev/null
          echo "published $TAG"