package com.wgcloud.util;

import com.wgcloud.entity.vo.OspfNeighbor;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.List;

/**
 * 解析ospf邻居信息实体类
 */
@Component
public class OspfNeighborUtil {

    public List<OspfNeighbor> analysisStr(String str){
        List<OspfNeighbor> ospfNeighborList = new ArrayList<>();
        String s1 = parseOspfNeighbor(str);
        String[] lines = s1.split("\n");
        for (String line : lines) {
            if(StringUtils.isNotBlank(line.trim())){
                String[] parts = line.trim().split("\\s+");
                if (parts.length >= 6) {
                    OspfNeighbor entity = new OspfNeighbor(
                            parts[0],
                            parts[1],
                            Integer.parseInt(parts[2]),
                            Integer.parseInt(parts[3]),
                            parts[4],
                            parts[5]
                    );
                    ospfNeighborList.add(entity);
                } else {
                    System.out.println("搜索结果不符合要求，无法解析");
                }
            }
        }
        System.out.println(ospfNeighborList);
        return ospfNeighborList;
    }

    private  String parseOspfNeighbor(String s) {
        // 找到 "Router ID" 所在行的位置
        int routerIdLineStart = s.indexOf("Pri Dead-Time");
        if (routerIdLineStart == -1) {
            System.out.println("未找到包含\"Pri Dead-Time\"的行");
            return "";
        }
        // 找到 "Router ID" 所在行的下一行的起始位置
        int nextLineStart = s.indexOf("\n", routerIdLineStart) + 1;

        // 找到最后的 "<H3C>" 所在行的位置
        int h3cLineStart = s.lastIndexOf("<H3C>");
        if (h3cLineStart == -1) {
            System.out.println("未找到最后的\"<H3C>\"");
            return "";
        }
        // 找到最后的 "<H3C>" 所在行的上一行的结束位置
        int prevLineEnd = s.lastIndexOf("\n", h3cLineStart - 1) + 1;

        // 截取从 Router ID 的下一行到最后的 <H3C> 上一行的内容
        String result = s.substring(nextLineStart, prevLineEnd);
        System.out.println(result);
        return result;
    }
}