feat: add dashboard cahrts display

internal/controllers/dashboard_controller.go

@@ -1,6 +1,9 @@
 package controllers
 
 import (
+	"sort"
+	"time"
+
 	"baihu/internal/constant"
 	"baihu/internal/database"
 	"baihu/internal/models"
@@ -57,3 +60,110 @@ func (dc *DashboardController) GetSentence(c *gin.Context) {
 		"sentence": constant.GetRandomSentence(),
 	})
 }
+
+// DailyStats 每日统计数据
+type DailyStats struct {
+	Day     string `json:"day"`
+	Total   int    `json:"total"`
+	Success int    `json:"success"`
+	Failed  int    `json:"failed"`
+}
+
+// GetSendStats 获取最近30天发送统计
+func (dc *DashboardController) GetSendStats(c *gin.Context) {
+	// 获取最近30天的日期范围
+	now := time.Now()
+	startDay := now.AddDate(0, 0, -29).Format("2006-01-02")
+
+	var stats []models.SendStats
+	database.DB.Where("day >= ?", startDay).Find(&stats)
+
+	// 按日期聚合
+	dayMap := make(map[string]*DailyStats)
+	for _, s := range stats {
+		if _, ok := dayMap[s.Day]; !ok {
+			dayMap[s.Day] = &DailyStats{Day: s.Day}
+		}
+		ds := dayMap[s.Day]
+		ds.Total += s.Num
+		if s.Status == "success" {
+			ds.Success += s.Num
+		} else {
+			ds.Failed += s.Num
+		}
+	}
+
+	// 填充缺失的日期
+	result := make([]DailyStats, 0, 30)
+	for i := 29; i >= 0; i-- {
+		day := now.AddDate(0, 0, -i).Format("2006-01-02")
+		if ds, ok := dayMap[day]; ok {
+			result = append(result, *ds)
+		} else {
+			result = append(result, DailyStats{Day: day})
+		}
+	}
+
+	// 按日期排序
+	sort.Slice(result, func(i, j int) bool {
+		return result[i].Day < result[j].Day
+	})
+
+	utils.Success(c, result)
+}
+
+// TaskStats 任务执行统计
+type TaskStats struct {
+	TaskID   uint   `json:"task_id"`
+	TaskName string `json:"task_name"`
+	Count    int    `json:"count"`
+}
+
+// GetTaskStats 获取最近30天任务执行占比
+func (dc *DashboardController) GetTaskStats(c *gin.Context) {
+	now := time.Now()
+	startDay := now.AddDate(0, 0, -29).Format("2006-01-02")
+
+	// 按 task_id 聚合统计
+	var results []struct {
+		TaskID uint
+		Total  int
+	}
+	database.DB.Model(&models.SendStats{}).
+		Select("task_id, SUM(num) as total").
+		Where("day >= ?", startDay).
+		Group("task_id").
+		Order("total DESC").
+		Find(&results)
+
+	// 获取任务名称
+	taskIDs := make([]uint, 0, len(results))
+	for _, r := range results {
+		taskIDs = append(taskIDs, r.TaskID)
+	}
+
+	var tasks []models.Task
+	if len(taskIDs) > 0 {
+		database.DB.Where("id IN ?", taskIDs).Find(&tasks)
+	}
+	taskNameMap := make(map[uint]string)
+	for _, t := range tasks {
+		taskNameMap[t.ID] = t.Name
+	}
+
+	// 构建结果
+	stats := make([]TaskStats, 0, len(results))
+	for _, r := range results {
+		name := taskNameMap[r.TaskID]
+		if name == "" {
+			name = "未知任务"
+		}
+		stats = append(stats, TaskStats{
+			TaskID:   r.TaskID,
+			TaskName: name,
+			Count:    r.Total,
+		})
+	}
+
+	utils.Success(c, stats)
+}

internal/router/router.go

@@ -102,6 +102,8 @@ func Setup(c *Controllers) *gin.Engine {
 			// Dashboard stats
 			authorized.GET("/stats", c.Dashboard.GetStats)
 			authorized.GET("/sentence", c.Dashboard.GetSentence)
+			authorized.GET("/sendstats", c.Dashboard.GetSendStats)
+			authorized.GET("/taskstats", c.Dashboard.GetTaskStats)
 
 			// Task routes
 			tasks := authorized.Group("/tasks")