# Build stage
FROM eclipse-temurin:21-jdk-alpine AS build

WORKDIR /app

# Copy source files
COPY backend/src /app/src

# Compile Java files
RUN mkdir -p /app/build && \
    javac -d /app/build /app/src/main/java/christmas/*.java

# Runtime stage
FROM eclipse-temurin:21-jre-alpine

WORKDIR /app

# Copy compiled classes from build stage
COPY --from=build /app/build /app/build

# Expose backend port
EXPOSE 8080

# Run the application
CMD ["java", "-cp", "/app/build", "christmas.Main"]