feat: 建立可靠通知、吊销与跨实例状态

server-go/internal/handler/notification.go

@@ -1,61 +1,34 @@
 package handler
 
 import (
-	"fmt"
-	"math/rand"
 	"net/http"
-	"sync"
 	"time"
 
 	"silk-server-go/internal/middleware"
+	"silk-server-go/internal/model"
 
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
 )
 
-// notificationItem 通知项
-type notificationItem struct {
-	ID        string `json:"id"`
-	Channel   string `json:"channel"`
-	Target    string `json:"target"`
-	Title     string `json:"title"`
-	Body      string `json:"body"`
-	CreatedAt string `json:"createdAt"`
-}
-
-// 通知内存存储（后续可替换为 Redis）
-var (
-	notificationStore []notificationItem
-	notificationMu    sync.Mutex
-)
-
 // RegisterNotificationRoutes 注册通知路由
 func RegisterNotificationRoutes(rg *gin.RouterGroup, db *gorm.DB) {
 	readPerm := middleware.RequirePermission(db, "alarm:read")
-	rg.GET("/notifications", readPerm, listNotifications())
-	rg.POST("/notifications", readPerm, createNotification())
+	rg.GET("/notifications", readPerm, listNotifications(db))
+	rg.POST("/notifications", readPerm, createNotification(db))
 }
 
 // listNotifications 通知列表（上限200）
-func listNotifications() gin.HandlerFunc {
+func listNotifications(db *gorm.DB) gin.HandlerFunc {
 	return func(c *gin.Context) {
-		notificationMu.Lock()
-		defer notificationMu.Unlock()
-
-		limit := 200
-		if len(notificationStore) < limit {
-			limit = len(notificationStore)
-		}
-		// 返回最新的 limit 条（存储已按新到旧排序）
-		result := make([]notificationItem, limit)
-		copy(result, notificationStore[:limit])
-
-		c.JSON(http.StatusOK, result)
+		var list []model.Notification
+		db.Order("created_at DESC").Limit(200).Find(&list)
+		c.JSON(http.StatusOK, list)
 	}
 }
 
 // createNotification 手动发通知
-func createNotification() gin.HandlerFunc {
+func createNotification(db *gorm.DB) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		var body struct {
 			Channel string `json:"channel"`
@@ -68,24 +41,25 @@ func createNotification() gin.HandlerFunc {
 			return
 		}
 
-		ntf := notificationItem{
-			ID:        fmt.Sprintf("%d%d", time.Now().UnixNano(), rand.Intn(1000000)),
-			Channel:   body.Channel,
-			Target:    body.Target,
-			Title:     body.Title,
-			Body:      body.Body,
-			CreatedAt: time.Now().Format(time.RFC3339),
+		ntf := model.Notification{
+			UserID:        currentUserID(c),
+			Channel:       body.Channel,
+			Target:        body.Target,
+			Title:         body.Title,
+			Body:          body.Body,
+			Status:        "sent",
+			NextAttemptAt: time.Now(),
 		}
-
-		notificationMu.Lock()
-		// 插入到头部（最新在前）
-		notificationStore = append([]notificationItem{ntf}, notificationStore...)
-		// 保留最近 500 条
-		if len(notificationStore) > 500 {
-			notificationStore = notificationStore[:500]
+		if ntf.Channel == "" {
+			ntf.Channel = "manual"
+		}
+		if ntf.Target == "" {
+			ntf.Target = "all"
+		}
+		if err := db.Create(&ntf).Error; err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": "创建通知失败"})
+			return
 		}
-		notificationMu.Unlock()
-
 		c.JSON(http.StatusCreated, ntf)
 	}
 }