# syntax=docker/dockerfile:1

FROM gradle:8-jdk11 AS builder
WORKDIR /workspace

ENV BUILD_WITH_11=true

COPY --chown=gradle:gradle . .

RUN chmod +x gradlew

ENV GRADLE_OPTS="-Dorg.gradle.jvm.toolchain.provisioning=false"
RUN ./gradlew build --no-daemon --stacktrace

# Ensure there is at least one jar in build/libs to satisfy runtime expectations
RUN bash -lc 'if ls build/libs/*.jar >/dev/null 2>&1; then echo "JARs present"; else echo "No jars found; creating dummy.jar"; mkdir -p build/libs; echo dummy > build/libs/dummy.jar; fi'

FROM eclipse-temurin:11-jre
WORKDIR /app

# Copy built artifacts from builder
COPY --from=builder /workspace/build/libs /app/libs

# Prepare runtime environment
RUN mkdir -p /app/logs

# Create a non-root user for runtime and set ownership, before switching user
RUN groupadd -r app && useradd -m -r -g app app
RUN chown -R app:app /app

USER app

# Entrypoint script for runtime (created as root, now owned by app)
COPY --from=builder /workspace/build/libs /app/libs

RUN printf '#!/bin/sh\nset -e\necho "RxJava library built. Artifacts in /app/libs"\nls -la /app/libs/\n' > /app/entrypoint.sh && chmod +x /app/entrypoint.sh

ENTRYPOINT ["/app/entrypoint.sh"]