package quota

import (
	"app/commons/core"
	"app/commons/model/entity"
	"encoding/json"
	"github.com/demdxx/gocast"
	"github.com/samber/lo"
	"gorm.io/datatypes"
	"reflect"
)

// 更新用户关系路径 -- 完成自测

func (s *Service) userParentIdsHandler() error {
	// 同步用户指标表与用户表pid关系
	// 获取所有用户路径信息
	type ParentInfo struct {
		Id        int64          `json:"id"`
		ParentId  int64          `json:"parentId"`
		ParentIds datatypes.JSON `json:"parentIds"`
	}
	var rows []ParentInfo
	err := s.DB().Model(&entity.User{}).
		Select("id,parent_id,parent_ids").Scan(&rows).Error
	if err != nil {
		return err
	}
	idPidMap := make(map[int64]int64)
	for _, row := range rows {
		idPidMap[row.Id] = row.ParentId
	}
	type QuotaInfo struct {
		UserId   int64 `json:"userId"`
		ParentId int64 `json:"parentId"`
	}
	var quotas []QuotaInfo
	err = s.DB().Model(&entity.UserQuota{}).
		Select("user_id,parent_id").Scan(&quotas).Error
	if err != nil {
		return err
	}
	quotaIdMap := make(map[int64]int64)
	for _, item := range quotas {
		quotaIdMap[item.UserId] = item.ParentId
	}
	count := len(rows)
	for i, row := range rows {
		if (i+1)%2000 == 0 {
			core.JobLog.Infof("用户更新 ParentIds 进度:%d/%d", i+1, count)
		}
		quotaPid, ok := quotaIdMap[row.Id]
		if !ok {
			continue
		}
		// tips: 如果当前上级id 与 指标用户上级ID不一致则进行修复
		if row.ParentId != quotaPid {
			err = s.DB().Model(&entity.UserQuota{}).
				Where("user_id", row.Id).
				Updates(map[string]interface{}{
					"parent_id": row.ParentId,
				}).Error
			if err != nil {
				return err
			}
		}
		ids := make([]int64, 0)
		if len(row.ParentIds) > 0 {
			if err := json.Unmarshal(row.ParentIds, &ids); err != nil {
				core.JobLog.Infof("json.Unmarshal:%s", err.Error())
				continue
			}
		}
		path := make([]int64, 0)
		var uid int64 // 当前用户ID
		var pid int64 // 当前上级ID
		pid = row.ParentId
		uid = row.Id
		if pid == 0 {
			if len(ids) == 0 {
				continue
			}
			jsonData, err := json.Marshal(path)
			if err != nil {
				return err
			}
			core.JobLog.Infof("原路径:%+v 新路径:%+v", ids, []int64{})
			err = s.DB().Model(&entity.User{}).
				Where("id", uid).
				Updates(map[string]interface{}{
					"parent_ids": jsonData,
				}).Error
			if err != nil {
				return err
			}
			continue
		}
		// 上级不存在则跳过 同时 路径发生了变化则修改
		// 遍历找出上级
		for {
			path = append(path, pid)
			// 通过映射查找出 当前上级ID
			value, exists := idPidMap[pid]
			if !exists {
				break
			}
			if value == 0 {
				break
			}
			// 防止死循环
			if lo.Contains(path, value) {
				break
			}
			uid = pid
			pid = gocast.ToInt64(value)
		}
		// 可优化为原生批量修改
		if !reflect.DeepEqual(ids, path) {
			jsonData, err := json.Marshal(path)
			if err != nil {
				return err
			}
			core.JobLog.Infof("原路径:%+v 新路径:%+v", ids, path)
			err = s.DB().Model(&entity.User{}).
				Where("id", row.Id).
				Updates(map[string]interface{}{
					"parent_ids": jsonData,
				}).Error
			if err != nil {
				return err
			}
		}
	}
	core.JobLog.Infof("更新所有用户PATH 用户总数：%d 信息完成", count)
	return nil
}