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#!/bin/bash

set -e

unset _JAVA_OPTIONS

shopt -s nullglob

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"

JDK_HOME=""

for ver in 24 23 22 21 17; do

for d in "$HOME/.sdkman/candidates/java/${ver}."*; do

if [ -x "$d/bin/javac" ] && [ -x "$d/bin/java" ]; then

JDK_HOME="$d"

break 2

fi

done

done

if [ -z "$JDK_HOME" ] && [ -x "$HOME/.sdkman/candidates/java/current/bin/javac" ]; then

JDK_HOME="$HOME/.sdkman/candidates/java/current"

fi

if [ -z "$JDK_HOME" ]; then

JAVAC_PATH=$(command -v javac 2>/dev/null) || true

if [ -n "$JAVAC_PATH" ]; then

JDK_HOME=$(dirname "$(dirname "$JAVAC_PATH")")

fi

fi

if [ -z "$JDK_HOME" ] || [ ! -x "$JDK_HOME/bin/javac" ]; then

echo "错误: 未找到 JDK 17+，请先安装。" >&2

exit 1

fi

JAVAC="$JDK_HOME/bin/javac"

JAVA="$JDK_HOME/bin/java"

if [ ! -f "$SCRIPT_DIR/JavaSwitcher.class" ] || \

[ "$SCRIPT_DIR/JavaSwitcher.java" -nt "$SCRIPT_DIR/JavaSwitcher.class" ]; then

echo "==> Compiling..."

"$JAVAC" -d "$SCRIPT_DIR" "$SCRIPT_DIR/JavaSwitcher.java"

echo "==> Done."

fi

exec "$JAVA" -cp "$SCRIPT_DIR" JavaSwitcher