FROM node:22.14.0-bookworm

# ── System deps + JDK 21 (required by current Capacitor Android toolchain) ───
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    wget unzip \
    && rm -rf /var/lib/apt/lists/*

ENV JAVA_HOME=/opt/java/openjdk
RUN mkdir -p "${JAVA_HOME}" && \
    wget -qO- "https://api.adoptium.net/v3/binary/latest/21/ga/linux/x64/jdk/hotspot/normal/eclipse?project=jdk" \
    | tar -xz -C "${JAVA_HOME}" --strip-components=1

# ── Android SDK command-line tools ────────────────────────────────────────────
# https://developer.android.com/studio#command-line-tools-only
ENV ANDROID_SDK_ROOT=/opt/android-sdk
ENV PATH="${JAVA_HOME}/bin:${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin:${ANDROID_SDK_ROOT}/platform-tools:${PATH}"

RUN mkdir -p "${ANDROID_SDK_ROOT}/cmdline-tools" && \
    wget -q \
      "https://dl.google.com/android/repository/commandlinetools-linux-11076708_latest.zip" \
      -O /tmp/cmdtools.zip && \
    unzip -q /tmp/cmdtools.zip -d "${ANDROID_SDK_ROOT}/cmdline-tools" && \
    mv "${ANDROID_SDK_ROOT}/cmdline-tools/cmdline-tools" \
       "${ANDROID_SDK_ROOT}/cmdline-tools/latest" && \
    rm /tmp/cmdtools.zip

# Accept licences and install required SDK packages
RUN yes | sdkmanager --licenses > /dev/null 2>&1 && \
    sdkmanager \
      "platforms;android-34" \
      "build-tools;34.0.0" \
      "platform-tools"

WORKDIR /build

# Copy repo
COPY . .

# ── JS dependencies ───────────────────────────────────────────────────────────
RUN cd frontend && npm ci

# ── Vite production build (generates dist/) ───────────────────────────────────
RUN cd frontend && npx vite build

# ── Capacitor: generate android/ project and copy web assets ─────────────────
# cap init reads capacitor.config.json; cap add android generates the project;
# cap sync copies dist/ into android/app/src/main/assets/public/
RUN cd frontend && \
    npx cap add android && \
    npx cap sync android

# ── Build debug APK (self-signed with auto-generated debug keystore) ──────────
RUN cd frontend/android && \
    chmod +x gradlew && \
    ./gradlew assembleDebug --no-daemon

# ── Export APK ────────────────────────────────────────────────────────────────
CMD ["cp", "frontend/android/app/build/outputs/apk/debug/app-debug.apk", "/out/wallet-gen-debug.apk"]