# Gitea Action Runner Java Image
# 基于 gitea_runner_base 添加多版本 JDK 和 Maven

FROM timi/gitea_runner_base:latest

LABEL maintainer="www.imyeyu.com"
LABEL description="Gitea Action Runner with JDK 8/21 and Maven 3"

# JDK 安装目录
ENV JAVA_BASE=/usr/lib/jvm

# 安装 Alpine 仓库中的 OpenJDK 版本（仅保留 8 和 21）
RUN apk add --no-cache \
    openjdk8 \
    openjdk21 \
    maven

# Maven
ENV MAVEN_HOME=/usr/share/java/maven-3

# 默认使用 JDK 21
ENV JAVA_HOME=${JAVA_BASE}/java-21-openjdk
ENV PATH="${JAVA_HOME}/bin:${MAVEN_HOME}/bin:${PATH}"

# 创建版本切换脚本
RUN cat <<'EOF' > /usr/local/bin/use-java
#!/bin/bash
case "$1" in
    8)  export JAVA_HOME=/usr/lib/jvm/java-1.8-openjdk ;;
    21) export JAVA_HOME=/usr/lib/jvm/java-21-openjdk ;;
    *)  echo "Usage: source use-java [8|21]"; return 1 ;;
esac
export PATH="${JAVA_HOME}/bin:${PATH}"
echo "Switched to Java $1: $(java -version 2>&1 | head -1)"
EOF
RUN chmod +x /usr/local/bin/use-java

# 验证安装
RUN echo "=== Installed JDK versions ===" \
    && echo "JDK 8:  $(/usr/lib/jvm/java-1.8-openjdk/bin/java -version 2>&1 | head -1)" \
    && echo "JDK 21: $(/usr/lib/jvm/java-21-openjdk/bin/java -version 2>&1 | head -1)" \
    && echo "Maven:  $(mvn -version 2>&1 | head -1)"