feat: 统计表

internal/app/app.go

@@ -104,6 +104,7 @@ func (a *App) Start() error {
 			// 数据库迁移
 			if err := a.db.AutoMigrate(
 				&models.RequestLog{},
+				&models.GroupHourlyStat{},
 				&models.APIKey{},
 				&models.SystemSetting{},
 				&models.Group{},

internal/models/types.go

@@ -98,3 +98,14 @@ type DashboardStats struct {
 	SuccessRate     float64            `json:"success_rate"`
 	GroupStats      []GroupRequestStat `json:"group_stats"`
 }
+
+// GroupHourlyStat 对应 group_hourly_stats 表，用于存储每个分组每小时的请求统计
+type GroupHourlyStat struct {
+	ID           uint      `gorm:"primaryKey;autoIncrement" json:"id"`
+	Time         time.Time `gorm:"type:datetime;not null;uniqueIndex:idx_group_time" json:"time"` // 整点时间
+	GroupID      uint      `gorm:"not null;uniqueIndex:idx_group_time" json:"group_id"`
+	SuccessCount int64     `gorm:"not null;default:0" json:"success_count"`
+	FailureCount int64     `gorm:"not null;default:0" json:"failure_count"`
+	CreatedAt    time.Time `json:"created_at"`
+	UpdatedAt    time.Time `json:"updated_at"`
+}

internal/services/request_log_service.go

@@ -13,6 +13,7 @@ import (
 	"github.com/google/uuid"
 	"github.com/sirupsen/logrus"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 )
 
 const (
@@ -222,6 +223,50 @@ func (s *RequestLogService) writeLogsToDB(logs []*models.RequestLog) error {
 				return fmt.Errorf("failed to batch update api_key stats: %w", err)
 			}
 		}
+
+		// 更新统计表
+		hourlyStats := make(map[struct {
+			Time    time.Time
+			GroupID uint
+		}]struct{ Success, Failure int64 })
+		for _, log := range logs {
+			hourlyTime := log.Timestamp.Truncate(time.Hour)
+			key := struct {
+				Time    time.Time
+				GroupID uint
+			}{Time: hourlyTime, GroupID: log.GroupID}
+
+			counts := hourlyStats[key]
+			if log.IsSuccess {
+				counts.Success++
+			} else {
+				counts.Failure++
+			}
+			hourlyStats[key] = counts
+		}
+
+		if len(hourlyStats) > 0 {
+			for key, counts := range hourlyStats {
+				err := tx.Clauses(clause.OnConflict{
+					Columns: []clause.Column{{Name: "time"}, {Name: "group_id"}},
+					DoUpdates: clause.Assignments(map[string]interface{}{
+						"success_count": gorm.Expr("success_count + ?", counts.Success),
+						"failure_count": gorm.Expr("failure_count + ?", counts.Failure),
+						"updated_at":    time.Now(),
+					}),
+				}).Create(&models.GroupHourlyStat{
+					Time:         key.Time,
+					GroupID:      key.GroupID,
+					SuccessCount: counts.Success,
+					FailureCount: counts.Failure,
+				}).Error
+
+				if err != nil {
+					return fmt.Errorf("failed to upsert group hourly stat: %w", err)
+				}
+			}
+		}
+
 		return nil
 	})
 }