# Multi-stage Dockerfile to build RxJava from source and provide a runtime image

FROM eclipse-temurin:25-jdk AS builder

# Install required tools for Gradle wrapper and unzip
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        curl \
        ca-certificates \
        unzip && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /workspace

# Copy the repository source
COPY . .

# Ensure wrapper is executable
RUN chmod +x gradlew

# Build the project from source, skipping tests to speed up image creation
RUN ./gradlew build -x test


# Create a minimal runtime image
FROM eclipse-temurin:25-jre AS runtime

WORKDIR /app

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

# Default command: drop into a shell for convenience
CMD ["bash"]