From f1dae9880544962e93769bdc97e02068a5007e8a Mon Sep 17 00:00:00 2001
From: laoboli <1293528695@qq.com>
Date: Thu, 30 Apr 2026 09:22:14 +0800
Subject: [PATCH] refactor: statistics.go.

---
 controllers/statistics.go | 31 +++++++++++++++++++++----------
 mockdata/main.go          |  1 +
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/controllers/statistics.go b/controllers/statistics.go
index 987ae5f..8e5dc49 100644
--- a/controllers/statistics.go
+++ b/controllers/statistics.go
@@ -160,8 +160,8 @@ func (sc *StatisticsController) StatisticsByRegion(c *gin.Context) {
 		TotalDurationMs       int64
 		TotalOriginalFileSize int64
 		TotalCompressedSize   int64
-		FirstUsedAt           *time.Time
-		LastUsedAt            *time.Time
+		FirstUsedAt           *int64
+		LastUsedAt            *int64
 	}
 
 	var rawResults []rawStats
@@ -266,6 +266,17 @@ func (sc *StatisticsController) StatisticsByRegion(c *gin.Context) {
 		if regionID > 0 {
 			kgName = kindergartenMap[regionID]
 		}
+
+		var firstUsedAt, lastUsedAt *time.Time
+		if r.FirstUsedAt != nil {
+			t := time.UnixMilli(*r.FirstUsedAt)
+			firstUsedAt = &t
+		}
+		if r.LastUsedAt != nil {
+			t := time.UnixMilli(*r.LastUsedAt)
+			lastUsedAt = &t
+		}
+
 		item := regionStatisticsItem{
 			RegionID:              regionID,
 			KindergartenName:      kgName,
@@ -280,8 +291,8 @@ func (sc *StatisticsController) StatisticsByRegion(c *gin.Context) {
 			TotalCompressedSize:   r.TotalCompressedSize,
 			AnalysisTypeCounts:    analysisTypeMap[regionID],
 			SourceTypeCounts:      sourceTypeMap[regionID],
-			FirstUsedAt:           r.FirstUsedAt,
-			LastUsedAt:            r.LastUsedAt,
+			FirstUsedAt:           firstUsedAt,
+			LastUsedAt:            lastUsedAt,
 		}
 
 		regions[strconv.FormatUint(uint64(regionID), 10)] = item
@@ -295,14 +306,14 @@ func (sc *StatisticsController) StatisticsByRegion(c *gin.Context) {
 		overall.TotalOriginalFileSize += r.TotalOriginalFileSize
 		overall.TotalCompressedSize += r.TotalCompressedSize
 
-		if r.FirstUsedAt != nil {
-			if overall.FirstUsedAt == nil || r.FirstUsedAt.Before(*overall.FirstUsedAt) {
-				overall.FirstUsedAt = r.FirstUsedAt
+		if firstUsedAt != nil {
+			if overall.FirstUsedAt == nil || firstUsedAt.Before(*overall.FirstUsedAt) {
+				overall.FirstUsedAt = firstUsedAt
 			}
 		}
-		if r.LastUsedAt != nil {
-			if overall.LastUsedAt == nil || r.LastUsedAt.After(*overall.LastUsedAt) {
-				overall.LastUsedAt = r.LastUsedAt
+		if lastUsedAt != nil {
+			if overall.LastUsedAt == nil || lastUsedAt.After(*overall.LastUsedAt) {
+				overall.LastUsedAt = lastUsedAt
 			}
 		}
 	}
diff --git a/mockdata/main.go b/mockdata/main.go
index 6733a41..7bcbdeb 100644
--- a/mockdata/main.go
+++ b/mockdata/main.go
@@ -90,6 +90,7 @@ func generateRecord() models.AIAnalysisRecord {
 	return models.AIAnalysisRecord{
 		RegionID:              &regionID,
 		SourceType:            sourceType,
+		AnalysisType:          analysisType,
 		InputTokens:           inputTokens,
 		OutputTokens:          outputTokens,
 		InputSizeBytes:        inputSizeBytes,