package main

import (
	"fmt"
	nebula "github.com/vesoft-inc/nebula-go/v3"
	"log"
	"strings"
)

// 表示企业关系结果
//type AllRelationResult struct {
//	RelatedCompanies []string // 有关系的企业列表
//	Paths            []string // 对应的路径
//}
//
//// 批量获取企业的 VID
//func getVidsByName(session *nebula.Session, names []string) (map[string]string, error) {
//	if len(names) == 0 {
//		return nil, nil
//	}
//	conditions := ""
//	for i, name := range names {
//		if i > 0 {
//			conditions += " OR "
//		}
//		conditions += fmt.Sprintf("Legal.name == \"%s\"", name)
//	}
//	query := fmt.Sprintf(`
//USE %s;
//LOOKUP ON Legal WHERE %s YIELD id(vertex) AS vid, properties(vertex).name AS name
//`, Table_Space, conditions)
//	resp, err := session.Execute(query)
//	if err != nil {
//		return nil, err
//	}
//	nameToVid := make(map[string]string)
//	for _, row := range resp.GetRows() {
//		if len(row.Values) >= 2 {
//			if row.Values[0].SVal != nil && row.Values[1].SVal != nil {
//				nameToVid[string(row.Values[1].SVal)] = string(row.Values[0].SVal)
//			}
//		}
//	}
//	return nameToVid, nil
//}
//
//// 获取 VID 对应的名称
//func getVidName(session *nebula.Session, vid string) (string, error) {
//	query := fmt.Sprintf(`
//USE %s;
//FETCH PROP ON Legal "%s" YIELD properties(vertex).name AS name
//`, Table_Space, vid)
//	resp, err := session.Execute(query)
//	if err != nil {
//		return "", err
//	}
//	names, err := getFirstColumnStrings(resp)
//	if err != nil || len(names) == 0 {
//		return "", fmt.Errorf("未找到 VID %s 的名称", vid)
//	}
//	return names[0], nil
//}
//
//// 查找路径
//func findPath(session *nebula.Session, fromVid, toVid string, maxStep int, pathCache map[string][]string) ([]string, error) {
//	key := fmt.Sprintf("%s->%s:%d", fromVid, toVid, maxStep)
//	if cachedPath, ok := pathCache[key]; ok {
//		return cachedPath, nil
//	}
//	query := fmt.Sprintf(`FIND  ALL PATH FROM "%s" TO "%s" OVER Invest UPTO %d STEPS YIELD path as p`, fromVid, toVid, maxStep)
//	resp, err := session.Execute(query)
//	if err != nil {
//		return nil, err
//	}
//	path, err := getFirstColumnStrings(resp)
//	if err != nil {
//		return nil, err
//	}
//	pathCache[key] = path
//	return path, nil
//}
//
//// 检查共同祖先
//func checkCommonAncestor(session *nebula.Session, aVid, bVid string, deep int, pathCache map[string][]string) (bool, []string, string) {
//	key := fmt.Sprintf("%s&%s:%d", aVid, bVid, deep)
//	if cachedPath, ok := pathCache[key]; ok {
//		if len(cachedPath) > 0 {
//			return true, cachedPath, cachedPath[1]
//		}
//		return false, nil, ""
//	}
//	query := fmt.Sprintf(`
//    (
//        GO 1 TO %d STEPS FROM "%s" OVER Invest REVERSELY YIELD dst(edge) AS ancestor
//    )
//    INTERSECT
//    (
//        GO 1 TO %d STEPS FROM "%s" OVER Invest REVERSELY YIELD dst(edge) AS ancestor
//    );
//    `, deep, aVid, deep, bVid)
//	resp, err := session.Execute(query)
//	if err != nil {
//		return false, nil, ""
//	}
//	ancestors, err := getFirstColumnStrings(resp)
//	if err != nil || len(ancestors) == 0 {
//		pathCache[key] = nil
//		return false, nil, ""
//	}
//	pathA, _ := findPath(session, aVid, ancestors[0], deep, pathCache)
//	pathB, _ := findPath(session, bVid, ancestors[0], deep, pathCache)
//	var path []string
//	if len(pathB) > 1 {
//		path = append(pathA, pathB[1:]...)
//	} else {
//		path = append(pathA, pathB...)
//	}
//	pathCache[key] = path
//	return true, path, ancestors[0]
//}
//
//// 将 VID 路径转换为名称路径
//func convertVidPathToNamePath(session *nebula.Session, vidPath []string) (string, error) {
//	namePath := ""
//	for i, vid := range vidPath {
//		name, err := getVidName(session, vid)
//		if err != nil {
//			return "", err
//		}
//		if i > 0 {
//			namePath += "->"
//		}
//		namePath += name
//	}
//	return namePath, nil
//}
//
//// 检查企业关系
//func CheckLegalRelations(session *nebula.Session, names []string, deep int) (AllRelationResult, error) {
//	result := AllRelationResult{}
//	checked := make(map[string]bool)
//	nameToVid, err := getVidsByName(session, names)
//	if err != nil {
//		return result, err
//	}
//	pathCache := make(map[string][]string)
//	relatedCompaniesSet := make(map[string]bool)
//	var paths []string
//
//	for i := 0; i < len(names); i++ {
//		for j := i + 1; j < len(names); j++ {
//			a, b := names[i], names[j]
//			vidA, okA := nameToVid[a]
//			vidB, okB := nameToVid[b]
//			if !okA || !okB {
//				continue
//			}
//
//			key := vidA + "|" + vidB
//			if checked[key] {
//				continue
//			}
//			checked[key] = true
//
//			// 1. a -> b
//			pathAB, err := findPath(session, vidA, vidB, deep, pathCache)
//			if err != nil {
//				log.Printf("查找 %s 到 %s 的路径失败: %v", a, b, err)
//				continue
//			}
//			if len(pathAB) > 0 {
//				pathStr, err := convertVidPathToNamePath(session, pathAB)
//				if err != nil {
//					log.Printf("转换 %s 到 %s 的路径失败: %v", a, b, err)
//					continue
//				}
//				paths = append(paths, pathStr)
//				for _, vid := range pathAB {
//					name, err := getVidName(session, vid)
//					if err != nil {
//						log.Printf("获取 VID %s 对应的名称失败: %v", vid, err)
//						continue
//					}
//					relatedCompaniesSet[name] = true
//				}
//				continue
//			}
//
//			// 2. b -> a
//			pathBA, err := findPath(session, vidB, vidA, deep, pathCache)
//			if err != nil {
//				log.Printf("查找 %s 到 %s 的路径失败: %v", b, a, err)
//				continue
//			}
//			if len(pathBA) > 0 {
//				pathStr, err := convertVidPathToNamePath(session, pathBA)
//				if err != nil {
//					log.Printf("转换 %s 到 %s 的路径失败: %v", b, a, err)
//					continue
//				}
//				paths = append(paths, pathStr)
//				for _, vid := range pathBA {
//					name, err := getVidName(session, vid)
//					if err != nil {
//						log.Printf("获取 VID %s 对应的名称失败: %v", vid, err)
//						continue
//					}
//					relatedCompaniesSet[name] = true
//				}
//				continue
//			}
//
//			// 3. common ancestor
//			common, path, _ := checkCommonAncestor(session, vidA, vidB, deep, pathCache)
//			if common {
//				pathStr, err := convertVidPathToNamePath(session, path)
//				if err != nil {
//					log.Printf("转换 %s 和 %s 到共同祖先的路径失败: %v", a, b, err)
//					continue
//				}
//				paths = append(paths, pathStr)
//				for _, vid := range path {
//					name, err := getVidName(session, vid)
//					if err != nil {
//						log.Printf("获取 VID %s 对应的名称失败: %v", vid, err)
//						continue
//					}
//					relatedCompaniesSet[name] = true
//				}
//			}
//		}
//	}
//
//	for company := range relatedCompaniesSet {
//		result.RelatedCompanies = append(result.RelatedCompanies, company)
//	}
//	result.Paths = paths
//
//	return result, nil
//}
//
//// getFirstColumnStrings 适配 nebula-go v3 取出字符串类型列
//func getFirstColumnStrings(resp *nebula.ResultSet) ([]string, error) {
//	if resp == nil {
//		return nil, fmt.Errorf("result set is nil")
//	}
//
//	var values []string
//	for _, row := range resp.GetRows() {
//		if len(row.Values) == 0 {
//			continue
//		}
//		val := row.Values[0]
//		switch {
//		case val.SVal != nil:
//			values = append(values, string(val.SVal))
//		case val.IVal != nil:
//			values = append(values, fmt.Sprintf("%d", *val.IVal))
//		case val.BVal != nil:
//			values = append(values, fmt.Sprintf("%v", *val.BVal))
//		default:
//			log.Printf("未知类型值: %+v", val)
//		}
//	}
//	return values, nil
//}

func CheckLegalRelations(session *nebula.Session, names []string, deep int) ([]RelationResult, error) {
	results := []RelationResult{}
	checked := make(map[string]bool)
	nameToVid, err := getAllVids(session, names)
	if err != nil {
		return nil, err
	}
	vidToName := reverseMap(nameToVid)

	for i := 0; i < len(names); i++ {
		for j := i + 1; j < len(names); j++ {
			a, b := names[i], names[j]
			vidA, okA := nameToVid[a]
			vidB, okB := nameToVid[b]
			if !okA || !okB {
				continue
			}

			key := vidA + "|" + vidB
			if checked[key] {
				continue
			}
			checked[key] = true

			// 1. a -> b
			pathAB, err := findPath(session, vidA, vidB, deep)
			if err != nil {
				return nil, err
			}
			if len(pathAB) > 0 {
				readablePath := convertPathToNames(pathAB, vidToName)
				results = append(results, RelationResult{A: a, B: b, RelationType: "direct_or_indirect", Path: readablePath})
				continue
			}

			// 2. b -> a
			pathBA, err := findPath(session, vidB, vidA, deep)
			if err != nil {
				return nil, err
			}
			if len(pathBA) > 0 {
				readablePath := convertPathToNames(pathBA, vidToName)
				results = append(results, RelationResult{A: b, B: a, RelationType: "direct_or_indirect", Path: readablePath})
				continue
			}

			// 3. common ancestor
			common, ancestorVid, err := checkCommonAncestor(session, vidA, vidB, deep)
			if err != nil {
				return nil, err
			}
			if common {
				ancestorName := getAncestorName(session, ancestorVid, vidToName)
				aName := vidToName[vidA]
				bName := vidToName[vidB]
				if ancestorName != "" && aName != "" && bName != "" {
					readablePath := []string{
						fmt.Sprintf("%s -> %s", aName, ancestorName),
						fmt.Sprintf("%s -> %s", bName, ancestorName),
					}
					results = append(results, RelationResult{A: a, B: b, RelationType: "common_ancestor", Path: readablePath})
				}
			}
		}
	}

	return results, nil
}

func getAllVids(session *nebula.Session, names []string) (map[string]string, error) {
	nameToVid := make(map[string]string)
	for _, name := range names {
		vid, err := getVidByName(session, name)
		if err != nil {
			log.Printf("获取 %s 的 VID 失败: %v", name, err)
			continue
		}
		nameToVid[name] = vid
	}
	return nameToVid, nil
}

func checkCommonAncestor(session *nebula.Session, aVid, bVid string, deep int) (bool, string, error) {
	query := fmt.Sprintf(`
    (
        GO 1 TO %d STEPS FROM "%s" OVER Invest REVERSELY YIELD dst(edge) AS ancestor
    )
    INTERSECT
    (
        GO 1 TO %d STEPS FROM "%s" OVER Invest REVERSELY YIELD dst(edge) AS ancestor
    );
    `, deep, aVid, deep, bVid)

	resp, err := session.Execute(query)
	if err != nil {
		return false, "", err
	}
	ancestors, err := getFirstColumnStrings(resp)
	if err != nil || len(ancestors) == 0 {
		return false, "", nil
	}
	return true, ancestors[0], nil
}

func findPath(session *nebula.Session, fromVid, toVid string, maxStep int) ([]string, error) {
	query := fmt.Sprintf(`FIND  ALL PATH FROM "%s" TO "%s" OVER Invest UPTO %d STEPS YIELD path as p`, fromVid, toVid, maxStep)
	resp, err := session.Execute(query)
	if err != nil {
		return nil, err
	}
	return getFirstColumnStrings(resp)
}

func getVidByName(session *nebula.Session, name string) (string, error) {
	query := fmt.Sprintf(`
USE `+Table_Space+`;
LOOKUP ON Legal WHERE Legal.name == "%s" YIELD id(vertex)`, name)
	resp, err := session.Execute(query)
	if err != nil {
		return "", err
	}

	values, err := getFirstColumnStrings(resp)
	if err != nil || len(values) == 0 {
		return "", fmt.Errorf("未找到公司: %s", name)
	}
	return values[0], nil
}

type RelationResult struct {
	A, B         string   // 公司名
	RelationType string   // 关系类型："direct_or_indirect", "common_ancestor"
	Path         []string // 路径中的公司名称，以更直观的形式展示
}

// getFirstColumnStrings 适配 nebula-go v3 取出字符串类型列
func getFirstColumnStrings(resp *nebula.ResultSet) ([]string, error) {
	if resp == nil {
		return nil, fmt.Errorf("result set is nil")
	}

	var values []string
	for _, row := range resp.GetRows() {
		if len(row.Values) == 0 {
			continue
		}
		val := row.Values[0]
		switch {
		case val.SVal != nil:
			values = append(values, string(val.SVal))
		case val.IVal != nil:
			values = append(values, fmt.Sprintf("%d", *val.IVal))
		case val.BVal != nil:
			values = append(values, fmt.Sprintf("%v", *val.BVal))
		case val.PVal != nil:
			// 处理点类型
			src := val.PVal.GetSrc()
			log.Println(src)
			//if src.GetId != nil {
			//	values = append(values, string(*src.SVal))
			//} else if src.IVal != nil {
			//	values = append(values, fmt.Sprintf("%d", *src.IVal))
			//} else {
			//	log.Printf("未知的点源 ID 类型: %+v", src)
			//}
		default:
			log.Printf("未知类型值: %+v", val)
		}
	}
	return values, nil
}

func reverseMap(m map[string]string) map[string]string {
	result := make(map[string]string)
	for k, v := range m {
		result[v] = k
	}
	return result
}

func convertPathToNames(path []string, vidToName map[string]string) []string {
	readablePath := make([]string, 0, len(path))
	for i := 0; i < len(path)-1; i++ {
		fromName, okFrom := vidToName[path[i]]
		toName, okTo := vidToName[path[i+1]]
		if okFrom && okTo && fromName != toName {
			readablePath = append(readablePath, fmt.Sprintf("%s -> %s", fromName, toName))
		}
	}
	return readablePath
}

func getAncestorName(session *nebula.Session, ancestorVid string, vidToName map[string]string) string {
	if name, ok := vidToName[ancestorVid]; ok {
		return name
	}
	query := fmt.Sprintf(`
USE `+Table_Space+`;
FETCH PROP ON Legal "%s" YIELD Legal.name;
`, ancestorVid)
	resp, err := session.Execute(query)
	if err != nil {
		log.Printf("获取祖先公司名称失败: %v", err)
		return ""
	}
	names, err := getFirstColumnStrings(resp)
	if err != nil || len(names) == 0 {
		return ""
	}
	return names[0]
}

//2222222222222222//

// CheckLegalRelationships 检查给定企业之间是否存在关系
func CheckLegalRelationships(session *nebula.Session, names []string, deep, stype int) (bool, string, error) {
	if len(names) < 2 {
		return false, "", fmt.Errorf("企业数量不足，至少需要两个")
	}

	found := false // 是否找到任意关系

	for i := 0; i < len(names); i++ {
		start := names[i]
		// 构造剩下的企业列表作为目标
		targets := []string{}
		for j := 0; j < len(names); j++ {
			if i != j {
				targets = append(targets, fmt.Sprintf(`"%s"`, names[j]))
			}
		}
		targetList := strings.Join(targets, ", ")

		// 构造 nGQL 查询
		query := fmt.Sprintf(`
USE %s;
MATCH p=(a:Legal{name:"%s"})-[*1..%d]-(b:Legal)
WHERE b.Legal.name IN [%s]
RETURN p LIMIT 1
`, Table_Space, start, deep, targetList)

		// 执行查询
		resp, err := session.Execute(query)
		if err != nil {
			return false, "", fmt.Errorf("查询失败: %w", err)
		}
		if !resp.IsSucceed() {
			return false, "", fmt.Errorf("查询执行失败: %s", resp.GetErrorMsg())
		}

		if resp.GetRowSize() > 0 {
			found = true
			// stype == 0：只要找到一个关系就返回
			if stype == 0 {
				return true, "企业之间存在关系", nil
			}
		}
	}

	// 所有组合查完，判断是否找到关系
	if found {
		return true, "企业之间存在关系", nil
	}

	return false, "企业之间无关联", nil
}

func CheckLegalRelationships2(session *nebula.Session, names []string, deep, stype int) (bool, []string, error) {
	if len(names) < 2 {
		return false, nil, fmt.Errorf("企业数量不足，至少需要两个")
	}

	var allPaths []string

	for i := 0; i < len(names); i++ {
		start := names[i]

		// 构造剩下的企业列表作为目标
		targets := []string{}
		for j := 0; j < len(names); j++ {
			if i != j {
				targets = append(targets, fmt.Sprintf(`"%s"`, names[j]))
			}
		}
		targetList := strings.Join(targets, ", ")

		// 构造查询语句
		query := fmt.Sprintf(`
USE %s;
MATCH p=(a:Legal{name:"%s"})-[*1..%d]-(b:Legal)
WHERE b.Legal.name IN [%s]
RETURN p LIMIT 1
`, Table_Space, start, deep, targetList)

		resp, err := session.Execute(query)
		if err != nil {
			return false, nil, fmt.Errorf("查询失败: %w", err)
		}
		if !resp.IsSucceed() {
			return false, nil, fmt.Errorf("查询执行失败: %s", resp.GetErrorMsg())
		}

		if resp.GetRowSize() > 0 {
			// 解析路径
			for _, row := range resp.GetRows() {
				if len(row.Values) == 0 {
					continue
				}
				val := row.Values[0]
				if !val.IsSetPVal() {
					continue
				}

				path := val.GetPVal()
				var pathNames []string

				// 起点
				srcVertex := path.Src
				if srcVertex != nil && srcVertex.Vid != nil && srcVertex.Vid.IsSetSVal() {
					vid := string(srcVertex.Vid.GetSVal())
					lea, err := getLegalByVid(session, vid)
					if err != nil {
						log.Println("getVidByName err", err, vid)
					}
					pathNames = append(pathNames, lea.Name)
				}

				// 步骤中目的点
				for _, step := range path.Steps {
					dstVertex := step.Dst
					if dstVertex != nil && dstVertex.Vid != nil && dstVertex.Vid.IsSetSVal() {
						vid := string(dstVertex.Vid.GetSVal())
						lea, err := getLegalByVid(session, vid)
						if err != nil {
							log.Println("getVidByName err", err, vid)
						}
						pathNames = append(pathNames, lea.Name)
					}
				}

				if len(pathNames) >= 2 {
					dd := strings.Join(pathNames, " -> ")
					allPaths = append(allPaths, dd)
					if stype == 0 {
						return true, allPaths, nil
					}
				}
			}
		}
	}

	if len(allPaths) > 0 {
		return true, allPaths, nil
	}

	return false, nil, nil
}

// getLegalByVid 根据vid 获取顶点
func getLegalByVid(session *nebula.Session, vid string) (*Legal, error) {
	query := fmt.Sprintf(`
USE %s;
FETCH PROP ON Legal "%s" YIELD Legal.name, Legal.code;`, Table_Space, vid)

	resp, err := session.Execute(query)
	if err != nil {
		return nil, fmt.Errorf("failed to execute fetch query: %w", err)
	}
	if !resp.IsSucceed() {
		return nil, fmt.Errorf("query failed: %s", resp.GetErrorMsg())
	}

	rows := resp.GetRows()
	if len(rows) == 0 {
		return nil, nil // 没查到
	}

	values := rows[0].Values

	info := &Legal{}
	if values[0].GetSVal() != nil {
		info.Name = string(values[0].GetSVal())
	}
	if values[1].GetSVal() != nil {
		info.Code = string(values[1].GetSVal())
	}
	return info, nil
}

// CheckLegalRelationships3 逻辑正确，但是存咋重复数据，还有数据路径存在包含的关系
func CheckLegalRelationships3(session *nebula.Session, names []string, deep, stype int) (bool, []string, error) {
	if len(names) < 2 {
		return false, nil, fmt.Errorf("企业数量不足，至少需要两个")
	}

	var allPaths []string

	for i := 0; i < len(names); i++ {
		start := names[i]

		// 构造剩下的企业列表作为目标
		targets := []string{}
		for j := 0; j < len(names); j++ {
			if i != j {
				targets = append(targets, fmt.Sprintf(`"%s"`, names[j]))
			}
		}
		targetList := strings.Join(targets, ", ")

		// 构造查询语句
		query := fmt.Sprintf(`
USE %s;
MATCH p=(a:Legal{name:"%s"})-[*1..%d]-(b:Legal)
WHERE b.Legal.name IN [%s]
RETURN p LIMIT 1
`, Table_Space, start, deep, targetList)

		resp, err := session.Execute(query)
		if err != nil {
			return false, nil, fmt.Errorf("查询失败: %w", err)
		}
		if !resp.IsSucceed() {
			return false, nil, fmt.Errorf("查询执行失败: %s", resp.GetErrorMsg())
		}

		if resp.GetRowSize() > 0 {
			for _, row := range resp.GetRows() {
				if len(row.Values) == 0 {
					continue
				}
				val := row.Values[0]
				if !val.IsSetPVal() {
					continue
				}

				path := val.GetPVal()
				var builder strings.Builder

				// 获取起点名称
				curName := ""
				srcVertex := path.Src
				if srcVertex != nil && srcVertex.Vid != nil && srcVertex.Vid.IsSetSVal() {
					vid := string(srcVertex.Vid.GetSVal())
					lea, err := getLegalByVid(session, vid)
					if err != nil {
						log.Println("getLegalByVid err:", err, vid)
					} else {
						curName = lea.Name
					}
				}
				builder.WriteString(curName)

				// 遍历路径步骤，考虑方向
				for _, step := range path.Steps {
					dstName := ""
					if step.Dst != nil && step.Dst.Vid != nil && step.Dst.Vid.IsSetSVal() {
						vid := string(step.Dst.Vid.GetSVal())
						lea, err := getLegalByVid(session, vid)
						if err != nil {
							log.Println("getLegalByVid err:", err, vid)
						} else {
							dstName = lea.Name
						}
					}

					// 判断方向
					if step.Type > 0 {
						// 正向边：cur → dst
						builder.WriteString(" → ")
						builder.WriteString(dstName)
						curName = dstName
					} else if step.Type < 0 {
						// 反向边：cur ← dst（即 dst → cur）
						builder.WriteString(" ← ")
						builder.WriteString(dstName)
						curName = dstName
					} else {
						// 无法判断方向
						builder.WriteString(" - ")
						builder.WriteString(dstName)
						curName = dstName
					}
				}

				strPath := builder.String()
				if strings.Count(strPath, "→")+strings.Count(strPath, "←") >= 1 {
					allPaths = append(allPaths, strPath)
					if stype == 0 {
						return true, allPaths, nil
					}
				}
			}
		}
	}

	if len(allPaths) > 0 {
		return true, allPaths, nil
	}
	return false, nil, nil
}

// ----------//
// 判断 pathA 是否是 pathB 的子路径（正向完全包含）
func isSubPath(pathA, pathB []string) bool {
	if len(pathA) >= len(pathB) {
		return false
	}
	for i := 0; i <= len(pathB)-len(pathA); i++ {
		match := true
		for j := 0; j < len(pathA); j++ {
			if pathA[j] != pathB[i+j] {
				match = false
				break
			}
		}
		if match {
			return true
		}
	}
	return false
}

// 返回路径唯一 key（方向不敏感）
func generatePathKey(path []string) string {
	// 保证方向一致性，字典序小的作为 key
	normal := strings.Join(path, "->")
	reversed := strings.Join(reverseSlice(path), "->")
	if normal < reversed {
		return normal
	}
	return reversed
}

// 反转字符串切片
func reverseSlice(slice []string) []string {
	reversed := make([]string, len(slice))
	for i, v := range slice {
		reversed[len(slice)-1-i] = v
	}
	return reversed
}

// CheckLegalRelationships4  CheckLegalRelationships4
func CheckLegalRelationships4(session *nebula.Session, names []string, deep, stype int) (bool, []string, error) {
	if len(names) < 2 {
		return false, nil, fmt.Errorf("企业数量不足，至少需要两个")
	}

	var rawNodeLists [][]string

	for i := 0; i < len(names); i++ {
		start := names[i]

		// 构造剩下的企业列表作为目标
		targets := []string{}
		for j := 0; j < len(names); j++ {
			if i != j {
				targets = append(targets, fmt.Sprintf(`"%s"`, names[j]))
			}
		}
		targetList := strings.Join(targets, ", ")

		// 构造查询语句
		query := fmt.Sprintf(`
USE %s;
MATCH p=(a:Legal{name:"%s"})-[*1..%d]-(b:Legal)
WHERE b.Legal.name IN [%s]
RETURN p LIMIT 1
`, Table_Space, start, deep, targetList)

		resp, err := session.Execute(query)
		if err != nil {
			return false, nil, fmt.Errorf("查询失败: %w", err)
		}
		if !resp.IsSucceed() {
			return false, nil, fmt.Errorf("查询执行失败: %s", resp.GetErrorMsg())
		}

		if resp.GetRowSize() > 0 {
			for _, row := range resp.GetRows() {
				if len(row.Values) == 0 {
					continue
				}
				val := row.Values[0]
				if !val.IsSetPVal() {
					continue
				}

				path := val.GetPVal()
				var pathNames []string

				// 起点
				srcVertex := path.Src
				if srcVertex != nil && srcVertex.Vid != nil && srcVertex.Vid.IsSetSVal() {
					vid := string(srcVertex.Vid.GetSVal())
					lea, err := getLegalByVid(session, vid)
					if err != nil {
						log.Println("getVidByName err", err, vid)
					}
					if lea != nil && lea.Name != "" {
						pathNames = append(pathNames, lea.Name)
					}
					//pathNames = append(pathNames, lea.Name)
				}

				// 解析带方向的路径
				for _, step := range path.Steps {
					dstVertex := step.Dst
					if dstVertex != nil && dstVertex.Vid != nil && dstVertex.Vid.IsSetSVal() {
						vid := string(dstVertex.Vid.GetSVal())
						lea, err := getLegalByVid(session, vid)
						if err != nil {
							log.Println("getVidByName err", err, vid)
						}
						if lea != nil && lea.Name != "" {
							pathNames = append(pathNames, lea.Name)
						}
					}
				}

				if len(pathNames) >= 2 {
					rawNodeLists = append(rawNodeLists, pathNames)
					if stype == 0 {
						return true, []string{strings.Join(pathNames, " → ")}, nil
					}
				}
			}
		}
	}

	// 去除重复、包含的路径（保留最长链条）
	uniquePathMap := map[string][]string{}

	for _, nodes := range rawNodeLists {
		key := generatePathKey(nodes)

		shouldAdd := true
		for k, existing := range uniquePathMap {
			if isSubPath(nodes, existing) || isSubPath(reverseSlice(nodes), existing) {
				shouldAdd = false
				break
			}
			if isSubPath(existing, nodes) {
				delete(uniquePathMap, k)
			}
		}

		if shouldAdd {
			uniquePathMap[key] = nodes
		}
	}

	var result []string
	for _, path := range uniquePathMap {
		result = append(result, strings.Join(path, " → "))
	}

	if len(result) > 0 {
		return true, result, nil
	}

	return false, nil, nil
}

func CheckLegalRelationships5(session *nebula.Session, names []string, deep, stype int) (bool, []string, error) {
	if len(names) < 2 {
		return false, nil, fmt.Errorf("企业数量不足，至少需要两个")
	}

	var rawPaths []string
	var rawNodeLists [][]string

	for i := 0; i < len(names); i++ {
		start := names[i]

		targets := []string{}
		for j := 0; j < len(names); j++ {
			if i != j {
				targets = append(targets, fmt.Sprintf(`"%s"`, names[j]))
			}
		}
		targetList := strings.Join(targets, ", ")

		query := fmt.Sprintf(`
USE %s;
MATCH p=(a:Legal{name:"%s"})-[*1..%d]-(b:Legal)
WHERE b.Legal.name IN [%s]
RETURN p LIMIT 1
`, Table_Space, start, deep, targetList)

		resp, err := session.Execute(query)
		if err != nil {
			return false, nil, fmt.Errorf("查询失败: %w", err)
		}
		if !resp.IsSucceed() {
			return false, nil, fmt.Errorf("查询执行失败: %s", resp.GetErrorMsg())
		}

		if resp.GetRowSize() > 0 {
			for _, row := range resp.GetRows() {
				if len(row.Values) == 0 {
					continue
				}
				val := row.Values[0]
				if !val.IsSetPVal() {
					continue
				}

				path := val.GetPVal()
				var builder strings.Builder
				var nodeNames []string

				curName := ""
				srcVertex := path.Src
				if srcVertex != nil && srcVertex.Vid != nil && srcVertex.Vid.IsSetSVal() {
					vid := string(srcVertex.Vid.GetSVal())
					lea, err := getLegalByVid(session, vid)
					if err != nil {
						log.Println("getLegalByVid err:", err, vid)
					} else {
						curName = lea.Name
					}
				}
				builder.WriteString(curName)
				nodeNames = append(nodeNames, curName)

				for _, step := range path.Steps {
					dstName := ""
					if step.Dst != nil && step.Dst.Vid != nil && step.Dst.Vid.IsSetSVal() {
						vid := string(step.Dst.Vid.GetSVal())
						lea, err := getLegalByVid(session, vid)
						if err != nil {
							log.Println("getLegalByVid err:", err, vid)
						} else {
							if lea != nil && lea.Name != "" {
								dstName = lea.Name
							}
						}
					}

					if step.Type > 0 {
						builder.WriteString(" → ")
					} else if step.Type < 0 {
						builder.WriteString(" ← ")
					} else {
						builder.WriteString(" - ")
					}
					builder.WriteString(dstName)
					nodeNames = append(nodeNames, dstName)
				}

				rawPaths = append(rawPaths, builder.String())
				rawNodeLists = append(rawNodeLists, nodeNames)

				if stype == 0 {
					return true, []string{builder.String()}, nil
				}
			}
		}
	}

	// 去重 + 保留最长路径
	uniqueMap := map[string]string{}
	for i, nodes := range rawNodeLists {
		pathStr := rawPaths[i]
		key := generatePathKey(nodes)

		shouldAdd := true
		for k, _ := range uniqueMap {
			existingNodes := strings.Split(k, "|")
			if isSubPath(nodes, existingNodes) || isSubPath(reverseSlice(nodes), existingNodes) {
				shouldAdd = false
				break
			}
			if isSubPath(existingNodes, nodes) {
				delete(uniqueMap, k)
			}
		}

		if shouldAdd {
			uniqueMap[key] = pathStr
		}
	}

	var finalPaths []string
	for _, v := range uniqueMap {
		finalPaths = append(finalPaths, v)
	}

	if len(finalPaths) > 0 {
		return true, finalPaths, nil
	}
	return false, nil, nil
}

// CheckLegalRelationships CheckLegalRelationships
func (c *NebulaClient) CheckLegalRelationships(names []string, deep, stype int) (bool, []string, error) {
	if len(names) < 2 {
		return false, nil, fmt.Errorf("企业数量不足，至少需要两个")
	}

	var rawPaths []string
	var rawNodeLists [][]string

	for i := 0; i < len(names); i++ {
		start := names[i]

		targets := []string{}
		for j := 0; j < len(names); j++ {
			if i != j {
				targets = append(targets, fmt.Sprintf(`"%s"`, names[j]))
			}
		}
		targetList := strings.Join(targets, ", ")

		query := fmt.Sprintf(`
USE %s;
MATCH p=(a:Legal{name:"%s"})-[*1..%d]-(b:Legal)
WHERE b.Legal.name IN [%s]
RETURN p LIMIT 1
`, Table_Space, start, deep, targetList)

		resp, err := c.ExecuteWithReconnect(query)
		if err != nil {
			return false, nil, fmt.Errorf("查询失败: %w", err)
		}

		if resp == nil {
			return false, nil, fmt.Errorf("查询失败,response is nil")
		}
		if !resp.IsSucceed() {
			return false, nil, fmt.Errorf("执行失败: %s", resp.GetErrorMsg())
		}

		if resp.GetRowSize() > 0 {
			for _, row := range resp.GetRows() {
				if len(row.Values) == 0 || !row.Values[0].IsSetPVal() {
					continue
				}

				path := row.Values[0].GetPVal()
				var builder strings.Builder
				var nodeNames []string

				// 起点
				src := path.Src
				curName := ""
				if src != nil && src.Vid != nil && src.Vid.IsSetSVal() {
					vid := string(src.Vid.GetSVal())
					lea, err := getLegalByVid(c.session, vid)
					if err != nil {
						log.Println("getLegalByVid err:", err, vid)
					} else if lea != nil && lea.Name != "" {
						curName = lea.Name
					}
				}
				builder.WriteString(curName)
				nodeNames = append(nodeNames, curName)

				// 步长处理
				for _, step := range path.Steps {
					dstName := ""
					if step.Dst != nil && step.Dst.Vid != nil && step.Dst.Vid.IsSetSVal() {
						vid := string(step.Dst.Vid.GetSVal())
						lea, err := getLegalByVid(c.session, vid)
						if err != nil {
							log.Println("getLegalByVid err:", err, vid)
						} else if lea != nil && lea.Name != "" {
							dstName = lea.Name
						}
					}

					if step.Type > 0 {
						builder.WriteString(" → ")
					} else if step.Type < 0 {
						builder.WriteString(" ← ")
					} else {
						builder.WriteString(" - ")
					}
					builder.WriteString(dstName)
					nodeNames = append(nodeNames, dstName)
				}

				rawPaths = append(rawPaths, builder.String())
				rawNodeLists = append(rawNodeLists, nodeNames)

				if stype == 0 {
					return true, []string{builder.String()}, nil
				}
			}
		}
	}

	// 去重 + 最长路径保留
	uniqueMap := map[string]string{}
	for i, nodes := range rawNodeLists {
		pathStr := rawPaths[i]
		key := generatePathKey(nodes)

		shouldAdd := true
		for k := range uniqueMap {
			existingNodes := strings.Split(k, "|")
			if isSubPath(nodes, existingNodes) || isSubPath(reverseSlice(nodes), existingNodes) {
				shouldAdd = false
				break
			}
			if isSubPath(existingNodes, nodes) {
				delete(uniqueMap, k)
			}
		}

		if shouldAdd {
			uniqueMap[key] = pathStr
		}
	}

	var finalPaths []string
	for _, v := range uniqueMap {
		finalPaths = append(finalPaths, v)
	}

	if len(finalPaths) > 0 {
		return true, finalPaths, nil
	}
	return false, nil, nil
}

// ---//
// 1. 数据结构定义