# HealthSync Backend 통합 Dockerfile
# 전체 멀티프로젝트를 한 번에 빌드하고 특정 서비스를 선택 실행

# =============================================================================
# Build Stage: 전체 멀티프로젝트 빌드
# =============================================================================
FROM openjdk:21-jdk-slim AS builder

# 빌드에 필요한 패키지 설치
RUN apt-get update && apt-get install -y \
    curl \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /workspace

# Gradle Wrapper 및 설정 파일 복사
COPY gradle/ gradle/
COPY gradlew .
COPY gradle.properties .
COPY settings.gradle .
COPY build.gradle .

# 각 서비스 소스코드 복사
COPY common/ common/
COPY api-gateway/ api-gateway/
COPY user-service/ user-service/
COPY health-service/ health-service/
COPY intelligence-service/ intelligence-service/
COPY goal-service/ goal-service/
COPY motivator-service/ motivator-service/

# Gradle 실행 권한 부여
RUN chmod +x gradlew

# 전체 프로젝트 빌드 (테스트 제외)
RUN ./gradlew clean build -x test

# 빌드된 JAR 파일들 확인
RUN find . -name "*.jar" -type f

# =============================================================================
# Runtime Stage: 실행 환경
# =============================================================================
FROM openjdk:21-jdk-slim

# 런타임 사용자 생성
RUN addgroup --system --gid 1001 healthsync && \
    adduser --system --uid 1001 --gid 1001 healthsync

# 작업 디렉토리 설정
WORKDIR /app

# 빌드된 JAR 파일들 복사
COPY --from=builder /workspace/api-gateway/build/libs/*.jar ./jars/api-gateway.jar
COPY --from=builder /workspace/user-service/build/libs/*.jar ./jars/user-service.jar
COPY --from=builder /workspace/health-service/build/libs/*.jar ./jars/health-service.jar
COPY --from=builder /workspace/intelligence-service/build/libs/*.jar ./jars/intelligence-service.jar
COPY --from=builder /workspace/goal-service/build/libs/*.jar ./jars/goal-service.jar
COPY --from=builder /workspace/motivator-service/build/libs/*.jar ./jars/motivator-service.jar

# 실행 스크립트 생성
RUN cat > /app/start-service.sh << 'EOF'
#!/bin/bash

SERVICE_NAME=${SERVICE_NAME:-user-service}
JAVA_OPTS=${JAVA_OPTS:-"-Xms256m -Xmx1024m"}

echo "Starting HealthSync ${SERVICE_NAME}..."
echo "Java Options: ${JAVA_OPTS}"

case ${SERVICE_NAME} in
    "api-gateway")
        exec java ${JAVA_OPTS} -jar /app/jars/api-gateway.jar
        ;;
    "user-service")
        exec java ${JAVA_OPTS} -jar /app/jars/user-service.jar
        ;;
    "health-service")
        exec java ${JAVA_OPTS} -jar /app/jars/health-service.jar
        ;;
    "intelligence-service")
        exec java ${JAVA_OPTS} -jar /app/jars/intelligence-service.jar
        ;;
    "goal-service")
        exec java ${JAVA_OPTS} -jar /app/jars/goal-service.jar
        ;;
    "motivator-service")
        exec java ${JAVA_OPTS} -jar /app/jars/motivator-service.jar
        ;;
    *)
        echo "Error: Unknown service name '${SERVICE_NAME}'"
        echo "Available services: api-gateway, user-service, health-service, intelligence-service, goal-service, motivator-service"
        exit 1
        ;;
esac
EOF

# 스크립트 실행 권한 부여
RUN chmod +x /app/start-service.sh

# 디렉토리 소유자 변경
RUN chown -R healthsync:healthsync /app

# 사용자 변경
USER healthsync

# 헬스체크 스크립트 생성
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:${SERVER_PORT:-8080}/actuator/health || exit 1

# 기본 포트 노출 (환경변수로 오버라이드 가능)
EXPOSE 8080 8081 8082 8083 8084 8085

# 환경변수 기본값 설정
ENV SERVICE_NAME=user-service
ENV JAVA_OPTS="-Xms256m -Xmx1024m"
ENV SPRING_PROFILES_ACTIVE=docker

# 실행 명령
ENTRYPOINT ["/app/start-service.sh"]