#!/bin/bash

echo "🔍 开始安全清理 NexTerm..."

# 检查容器是否存在及其状态
echo "1. 检查容器状态..."
docker ps -a | grep nexterm

# 获取容器的详细信息
echo "2. 获取容器详细信息..."
CONTAINER_INFO=$(docker inspect nexterm 2>/dev/null || echo "容器不存在")

if [ "$CONTAINER_INFO" != "容器不存在" ]; then
    echo "📦 容器信息:"
    echo "   状态: $(echo "$CONTAINER_INFO" | grep '"Status"' | head -1)"
    echo "   镜像: $(echo "$CONTAINER_INFO" | grep '"Image"' | head -1)"
    echo "   创建时间: $(echo "$CONTAINER_INFO" | grep '"Created"' | head -1)"
    
    # 获取容器使用的卷
    echo "3. 检查容器挂载的卷..."
    MOUNTS=$(echo "$CONTAINER_INFO" | grep '"Source"' | awk -F'"' '{print $4}')
    if [ -n "$MOUNTS" ]; then
        echo "📁 容器挂载的目录:"
        echo "$MOUNTS"
    fi
fi

# 检查数据卷
echo "4. 检查数据卷..."
VOLUME_INFO=$(docker volume inspect nexterm 2>/dev/null || echo "数据卷不存在")
if [ "$VOLUME_INFO" != "数据卷不存在" ]; then
    echo "💾 数据卷信息:"
    VOLUME_PATH=$(echo "$VOLUME_INFO" | grep '"Mountpoint"' | awk -F'"' '{print $4}')
    echo "   挂载点: $VOLUME_PATH"
    echo "   数据大小: $(du -sh $VOLUME_PATH 2>/dev/null || echo "无法获取大小")"
fi

# 确认删除
read -p "⚠️  确认要删除 NexTerm 容器和数据卷吗？(y/N): " confirm
if [[ $confirm != [yY] ]]; then
    echo "❌ 操作已取消"
    exit 0
fi

# 开始清理
echo "5. 开始清理..."

# 停止容器（如果运行中）
echo "   🛑 停止容器..."
docker stop nexterm 2>/dev/null && echo "   ✅ 容器已停止" || echo "   ℹ️  容器未运行"

# 删除容器
echo "   🗑️  删除容器..."
docker rm nexterm 2>/dev/null && echo "   ✅ 容器已删除" || echo "   ℹ️  容器不存在"

# 删除数据卷
echo "   🗑️  删除数据卷..."
docker volume rm nexterm 2>/dev/null && echo "   ✅ 数据卷已删除" || echo "   ℹ️  数据卷不存在"

# 检查是否还有残留
echo "6. 检查清理结果..."
CLEAN_RESULT=$(docker ps -a | grep -c nexterm)
VOLUME_RESULT=$(docker volume ls | grep -c nexterm)

if [ $CLEAN_RESULT -eq 0 ] && [ $VOLUME_RESULT -eq 0 ]; then
    echo "✅ 清理完成！NexTerm 已完全删除"
else
    echo "⚠️  发现残留项目:"
    [ $CLEAN_RESULT -ne 0 ] && echo "   - 容器残留" && docker ps -a | grep nexterm
    [ $VOLUME_RESULT -ne 0 ] && echo "   - 数据卷残留" && docker volume ls | grep nexterm
fi

# 生成新密钥并使用随机端口重新安装
echo "7. 重新安装（使用随机端口）..."
NEW_KEY=$(openssl rand -hex 32)
echo "🔑 新加密密钥: $NEW_KEY"
echo "💡 请妥善保存此密钥！"

docker run -d \
  -e ENCRYPTION_KEY=$NEW_KEY \
  -p 3000 \  # 只指定容器端口，让Docker自动分配主机端口
  --name nexterm \
  --restart unless-stopped \
  -v nexterm:/app/data \
  germannewsmaker/nexterm:1.0.5-OPEN-PREVIEW

echo "8. 等待容器启动..."
sleep 8

# 获取实际映射的端口
echo "9. 获取端口映射信息..."
ACTUAL_PORT=$(docker port nexterm | grep '3000/tcp' | awk -F: '{print $2}')

if docker ps | grep -q nexterm; then
    echo "✅ NexTerm 重新安装成功！"
    echo "🌐 访问地址: http://服务器IP:${ACTUAL_PORT:-未知端口}"
    echo "🔑 加密密钥: $NEW_KEY"
    
    # 显示完整的端口信息
    echo ""
    echo "📊 端口映射详情:"
    docker port nexterm
    
    # 获取服务器IP
    SERVER_IP=$(curl -s ipv4.icanhazip.com 2>/dev/null || hostname -I | awk '{print $1}' || echo "localhost")
    echo ""
    echo "🎯 完整访问地址: http://${SERVER_IP}:${ACTUAL_PORT}"
else
    echo "❌ 安装失败，请检查日志: docker logs nexterm"
fi