# Multi-stage build for Spring Boot application
FROM maven:3.9.6-eclipse-temurin-21 AS build

# Set working directory
WORKDIR /app

# Copy pom.xml and download dependencies
COPY pom.xml .
RUN mvn dependency:go-offline -B

# Copy source code
COPY src ./src

# Build the application
RUN mvn clean package -DskipTests

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

# Set working directory
WORKDIR /app

# Create non-root user for security
RUN groupadd -r konturai && useradd -r -g konturai konturai

# Install necessary packages
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy the JAR file from build stage
COPY --from=build /app/target/konturai-*.jar app.jar

# Change ownership to non-root user
RUN chown konturai:konturai app.jar

# Switch to non-root user
USER konturai

# Expose port
EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=60s --retries=3 \
    CMD curl -f http://localhost:8080/actuator/health || exit 1

# Set JVM options for containerized environment
ENV JAVA_OPTS="-Xmx512m -Xms256m -XX:+UseContainerSupport -XX:MaxRAMPercentage=75.0"

# Run the application
ENTRYPOINT ["sh", "-c", "java $JAVA_OPTS -jar app.jar"]