# ============================================
# 阶段一：构建阶段
# ============================================
FROM maven:3.9.11-eclipse-temurin-17 AS builder

WORKDIR /app

# 先只复制 pom.xml，利用 Docker 缓存层加速依赖下载
COPY pom.xml .
RUN mvn dependency:go-offline -B

# 复制源码并打包
COPY src ./src
RUN mvn clean package -DskipTests -B

# ============================================
# 阶段二：运行阶段（精简镜像）
# ============================================
FROM eclipse-temurin:17-jre-jammy

WORKDIR /app

# 设置时区为上海
ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# 从构建阶段复制 JAR
COPY --from=builder /app/target/Smart-Review-Backend-2.0.jar app.jar

# 暴露端口
EXPOSE 8080

# 启动命令，激活 prod 配置
ENTRYPOINT ["java", "-jar", "-Dspring.profiles.active=prod", "-Djava.security.egd=file:/dev/./urandom", "app.jar"]