hi-server/internal/logic/admin/group/exportGroupResultLogic.go
EUForest 39310d5b9a Features:
- Node group CRUD operations with traffic-based filtering
  - Three grouping modes: average distribution, subscription-based, and traffic-based
  - Automatic and manual group recalculation with history tracking
  - Group assignment preview before applying changes
  - User subscription group locking to prevent automatic reassignment
  - Subscribe-to-group mapping configuration
  - Group calculation history and detailed reports
  - System configuration for group management (enabled/mode/auto_create)

  Database:
  - Add node_group table for group definitions
  - Add group_history and group_history_detail tables for tracking
  - Add node_group_ids (JSON) to nodes and subscribe tables
  - Add node_group_id and group_locked fields to user_subscribe table
  - Add migration files for schema changes
2026-03-08 23:22:38 +08:00

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package group
import (
"bytes"
"context"
"encoding/csv"
"fmt"
"github.com/perfect-panel/server/internal/model/group"
"github.com/perfect-panel/server/internal/svc"
"github.com/perfect-panel/server/internal/types"
"github.com/perfect-panel/server/pkg/logger"
)
type ExportGroupResultLogic struct {
logger.Logger
ctx context.Context
svcCtx *svc.ServiceContext
}
func NewExportGroupResultLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ExportGroupResultLogic {
return &ExportGroupResultLogic{
Logger: logger.WithContext(ctx),
ctx: ctx,
svcCtx: svcCtx,
}
}
// ExportGroupResult 导出分组结果为 CSV
// 返回CSV 数据(字节切片)、文件名、错误
func (l *ExportGroupResultLogic) ExportGroupResult(req *types.ExportGroupResultRequest) ([]byte, string, error) {
var records [][]string
// CSV 表头
records = append(records, []string{"用户ID", "节点组ID", "节点组名称"})
if req.HistoryId != nil {
// 导出指定历史的详细结果
// 1. 查询分组历史详情
var details []group.GroupHistoryDetail
if err := l.svcCtx.DB.Where("history_id = ?", *req.HistoryId).Find(&details).Error; err != nil {
logger.Errorf("failed to get group history details: %v", err)
return nil, "", err
}
// 2. 为每个组生成记录
for _, detail := range details {
// 从 UserData JSON 解析用户信息
type UserInfo struct {
Id int64 `json:"id"`
Email string `json:"email"`
}
var users []UserInfo
if err := l.svcCtx.DB.Raw("SELECT * FROM JSON_ARRAY(?)", detail.UserData).Scan(&users).Error; err != nil {
// 如果解析失败,尝试用标准 JSON 解析
logger.Errorf("failed to parse user data: %v", err)
continue
}
// 查询节点组名称
var nodeGroup group.NodeGroup
l.svcCtx.DB.Where("id = ?", detail.NodeGroupId).First(&nodeGroup)
// 为每个用户生成记录
for _, user := range users {
records = append(records, []string{
fmt.Sprintf("%d", user.Id),
fmt.Sprintf("%d", nodeGroup.Id),
nodeGroup.Name,
})
}
}
} else {
// 导出当前所有用户的分组情况
type UserNodeGroupInfo struct {
Id int64 `json:"id"`
NodeGroupId int64 `json:"node_group_id"`
}
var userSubscribes []UserNodeGroupInfo
if err := l.svcCtx.DB.Table("user_subscribe").
Select("DISTINCT user_id as id, node_group_id").
Where("node_group_id > ?", 0).
Find(&userSubscribes).Error; err != nil {
logger.Errorf("failed to get users: %v", err)
return nil, "", err
}
// 为每个用户生成记录
for _, us := range userSubscribes {
// 查询节点组信息
var nodeGroup group.NodeGroup
if err := l.svcCtx.DB.Where("id = ?", us.NodeGroupId).First(&nodeGroup).Error; err != nil {
logger.Errorf("failed to find node group: %v", err)
// 跳过该用户
continue
}
records = append(records, []string{
fmt.Sprintf("%d", us.Id),
fmt.Sprintf("%d", nodeGroup.Id),
nodeGroup.Name,
})
}
}
// 生成 CSV 数据
var buf bytes.Buffer
writer := csv.NewWriter(&buf)
writer.WriteAll(records)
writer.Flush()
if err := writer.Error(); err != nil {
logger.Errorf("failed to write csv: %v", err)
return nil, "", err
}
// 添加 UTF-8 BOM
bom := []byte{0xEF, 0xBB, 0xBF}
csvData := buf.Bytes()
result := make([]byte, 0, len(bom)+len(csvData))
result = append(result, bom...)
result = append(result, csvData...)
// 生成文件名
filename := fmt.Sprintf("group_result_%d.csv", req.HistoryId)
return result, filename, nil
}