# ========== 阶段一：构建前端 dist ==========
FROM node:20-alpine AS frontend-builder

WORKDIR /app/frontend

# 配置 npm 使用淘宝镜像源
RUN npm config set registry https://registry.npmmirror.com

COPY frontend/package.json frontend/package-lock.json* ./
RUN npm ci --ignore-scripts || npm install --legacy-peer-deps

COPY frontend/ ./
RUN npm run build

# ========== 阶段二：构建后端 JAR（含 dist 到 static） ==========
FROM eclipse-temurin:17-jdk-alpine AS backend-builder

WORKDIR /app

# 安装 Maven
RUN apk add --no-cache maven

# 配置 Maven 使用阿里云镜像源
RUN mkdir -p /root/.m2 && \
    echo '<?xml version="1.0" encoding="UTF-8"?>' > /root/.m2/settings.xml && \
    echo '<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"' >> /root/.m2/settings.xml && \
    echo '          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"' >> /root/.m2/settings.xml && \
    echo '          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">' >> /root/.m2/settings.xml && \
    echo '  <mirrors>' >> /root/.m2/settings.xml && \
    echo '    <mirror>' >> /root/.m2/settings.xml && \
    echo '      <id>aliyunmaven</id>' >> /root/.m2/settings.xml && \
    echo '      <mirrorOf>*</mirrorOf>' >> /root/.m2/settings.xml && \
    echo '      <name>阿里云公共仓库</name>' >> /root/.m2/settings.xml && \
    echo '      <url>https://maven.aliyun.com/repository/public</url>' >> /root/.m2/settings.xml && \
    echo '    </mirror>' >> /root/.m2/settings.xml && \
    echo '  </mirrors>' >> /root/.m2/settings.xml && \
    echo '</settings>' >> /root/.m2/settings.xml

COPY backend/ ./backend/
COPY --from=frontend-builder /app/frontend/dist ./backend/src/main/resources/static

WORKDIR /app/backend
RUN mvn package -DskipTests -q -B

# ========== 阶段三：运行 ==========
FROM eclipse-temurin:17-jre-alpine

WORKDIR /app

# 上传目录与数据持久化
RUN mkdir -p /app/data/uploads

COPY --from=backend-builder /app/backend/target/datatool-backend-*.jar ./app.jar

EXPOSE 8080

ENTRYPOINT ["java", "-jar", "app.jar"]