name: release

# På varje push till main: bygg signerad release-APK och lägg den på en
# rullande "latest"-release på släppsidan i Gitea.
#
# Runnern är Pi5 (arm64). Googles aapt2 finns bara för linux x86_64, därför
# används en statiskt byggd arm64-aapt2 (lzhiyong/android-sdk-tools) via
# gradle-flaggan android.aapt2FromMavenOverride. Resten av Android-bygget
# (kotlinc, d8, apksigner) är JVM-baserat och kör fint på arm64.
on:
  push:
    branches: [main]
  workflow_dispatch: {}

env:
  CMDLINE_TOOLS_URL: https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip
  AAPT2_ARM64_URL: https://github.com/lzhiyong/android-sdk-tools/releases/download/35.0.2/android-sdk-tools-static-aarch64.zip

jobs:
  build-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Skriv signeringsnyckel från secrets
        run: |
          set -e
          if [ -z "${{ secrets.KEYSTORE_B64 }}" ] || [ -z "${{ secrets.KEYSTORE_PASSWORD }}" ]; then
            echo "Secrets KEYSTORE_B64 och KEYSTORE_PASSWORD saknas."
            echo "Lägg till dem under repo-inställningar -> Actions -> Secrets:"
            echo "  KEYSTORE_B64      = base64 -w0 signing/fitnessdroid.jks"
            echo "  KEYSTORE_PASSWORD = storePassword ur signing/keystore.properties"
            exit 1
          fi
          mkdir -p signing
          echo "${{ secrets.KEYSTORE_B64 }}" | base64 -d > signing/fitnessdroid.jks
          {
            echo "storeFile=fitnessdroid.jks"
            echo "storePassword=${{ secrets.KEYSTORE_PASSWORD }}"
            echo "keyAlias=fitnessdroid"
            echo "keyPassword=${{ secrets.KEYSTORE_PASSWORD }}"
          } > signing/keystore.properties

      - name: Cache gradle
        uses: actions/cache@v4
        continue-on-error: true
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: gradle-${{ hashFiles('gradle/wrapper/gradle-wrapper.properties', 'gradle/libs.versions.toml') }}
          restore-keys: gradle-

      - name: Installera JDK 17 + Android SDK (arm64)
        run: |
          set -e
          echo "== apt: JDK 17 + verktyg =="
          sudo apt-get update -qq
          sudo apt-get install -y -qq openjdk-17-jdk-headless wget unzip jq curl
          export ANDROID_HOME=$HOME/android-sdk
          mkdir -p "$ANDROID_HOME/cmdline-tools"
          echo "== hämtar cmdline-tools =="
          wget -nv "$CMDLINE_TOOLS_URL" -O /tmp/cmdline-tools.zip
          unzip -q /tmp/cmdline-tools.zip -d "$ANDROID_HOME/cmdline-tools"
          mv "$ANDROID_HOME/cmdline-tools/cmdline-tools" "$ANDROID_HOME/cmdline-tools/latest"
          echo "== accepterar licenser =="
          # (yes || true): yes dör med SIGPIPE när sdkmanager stänger röret,
          # och jobbet kör med pipefail — utan skyddet faller steget på exit 141.
          (yes || true) | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
          echo "== installerar platform-35 + build-tools =="
          "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" "platforms;android-35" "build-tools;34.0.0" > /dev/null
          echo "== hämtar arm64-aapt2 (Googles är x86_64-only) =="
          mkdir -p "$HOME/ci-tools"
          wget -nv "$AAPT2_ARM64_URL" -O /tmp/sdk-tools-arm64.zip
          unzip -qo /tmp/sdk-tools-arm64.zip -d "$HOME/ci-tools"
          chmod +x "$HOME/ci-tools/build-tools/aapt2"
          echo "ANDROID_HOME=$ANDROID_HOME" >> "$GITHUB_ENV"
          echo "== SDK-setup klar =="

      - name: Bygg signerad release-APK
        run: |
          set -e
          export JAVA_HOME=$(dirname $(dirname $(readlink -f $(which java))))
          # Snäll mot Pi5:n — begränsa gradles parallellism
          nice -n 10 ./gradlew --no-daemon --console=plain \
            -Dorg.gradle.workers.max=2 \
            -Pandroid.aapt2FromMavenOverride="$HOME/ci-tools/build-tools/aapt2" \
            :app:assembleRelease
          mkdir -p build
          cp app/build/outputs/apk/release/app-release.apk build/FitnessDroid.apk
          (cd build && sha256sum FitnessDroid.apk > checksums.txt && ls -la)
          # version.json för appens inbyggda uppdateringskoll
          VN=$("$HOME/ci-tools/build-tools/aapt2" dump badging build/FitnessDroid.apk \
            | sed -n "s/.*versionName='\([^']*\)'.*/\1/p" | head -1)
          SHA=$(cut -d' ' -f1 build/checksums.txt)
          jq -n \
            --argjson code "${{ github.run_number }}" \
            --arg name "$VN" \
            --arg sha "$SHA" \
            --arg url "https://gitea.brasse-pc.eu/${{ github.repository }}/releases/download/latest/FitnessDroid.apk" \
            '{versionCode:$code, versionName:$name, sha256:$sha, apkUrl:$url}' \
            > build/version.json
          cat build/version.json

      - name: Skapa/uppdatera latest-release + ladda upp APK
        env:
          API: http://gitea-d:3000/api/v1
          REPO: ${{ github.repository }}
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -e
          TAG="latest"
          BASE="https://gitea.brasse-pc.eu/$REPO/releases/download/$TAG"
          BODY=$(cat <<EOF
          Rullande bygge från senaste main. Commit: ${{ github.sha }}. Byggnummer: ${{ github.run_number }}.

          ## Installera på telefonen

          1. Öppna denna sida i telefonens webbläsare och ladda ner **FitnessDroid.apk**
             (eller direktlänk: $BASE/FitnessDroid.apk)
          2. Öppna den nedladdade filen och tillåt installation från okänd källa om telefonen frågar.
          3. Appen uppdaterar befintlig installation — inget behöver avinstalleras (samma signeringsnyckel).

          Kräver Android 12 eller nyare.
          EOF
          )
          rid=$(curl -s -X POST "$API/repos/$REPO/releases" \
            -H "Authorization: token $TOKEN" -H 'Content-Type: application/json' \
            -d "$(jq -n --arg tag "$TAG" --arg body "$BODY" '{tag_name:$tag,name:$tag,body:$body}')" | jq -r '.id // empty')
          if [ -z "$rid" ]; then
            rid=$(curl -s "$API/repos/$REPO/releases/tags/$TAG" \
              -H "Authorization: token $TOKEN" | jq -r '.id')
            curl -s -X PATCH "$API/repos/$REPO/releases/$rid" \
              -H "Authorization: token $TOKEN" -H 'Content-Type: application/json' \
              -d "$(jq -n --arg body "$BODY" '{body:$body}')" -o /dev/null
          fi
          echo "release id: $rid"
          for f in FitnessDroid.apk checksums.txt version.json; do
            aid=$(curl -s "$API/repos/$REPO/releases/$rid/assets" \
              -H "Authorization: token $TOKEN" | jq -r ".[] | select(.name==\"$f\") | .id")
            if [ -n "$aid" ] && [ "$aid" != "null" ]; then
              curl -s -X DELETE "$API/repos/$REPO/releases/$rid/assets/$aid" \
                -H "Authorization: token $TOKEN" -o /dev/null
            fi
            curl -s -X POST "$API/repos/$REPO/releases/$rid/assets?name=$f" \
              -H "Authorization: token $TOKEN" \
              -F "attachment=@build/$f" -o /dev/null -w "  $f -> HTTP %{http_code}\n"
          done