修复了一些问题

internal/api/settings_handler.go

@@ -0,0 +1,126 @@
+/**
+ * package api
+ * 作用：用户设置与消息已读回执 HTTP 接口
+ */
+package api
+
+import (
+	"encoding/json"
+	"time"
+
+	"xk-websocket-v2/internal/model"
+	"xk-websocket-v2/internal/service"
+	"xk-websocket-v2/internal/utils"
+
+	"github.com/gin-gonic/gin"
+)
+
+/**
+ * GetUserSettingsHandler
+ * 功能：获取当前用户的全部设置
+ */
+func GetUserSettingsHandler(c *gin.Context) {
+	userID, ok := c.Get("user_id")
+	if !ok {
+		utils.Unauthorized(c, "未认证")
+		return
+	}
+
+	var rows []model.UserSetting
+	if err := service.ChatSvc.DB.Where("user_id = ?", userID.(string)).Find(&rows).Error; err != nil {
+		utils.InternalError(c, "查询失败")
+		return
+	}
+
+	result := make(map[string]string, len(rows))
+	for _, row := range rows {
+		result[row.SettingKey] = row.SettingValue
+	}
+	utils.SuccessWithData(c, result, "获取成功")
+}
+
+/**
+ * UpdateUserSettingsHandler
+ * 功能：批量更新用户设置
+ */
+func UpdateUserSettingsHandler(c *gin.Context) {
+	userID, ok := c.Get("user_id")
+	if !ok {
+		utils.Unauthorized(c, "未认证")
+		return
+	}
+
+	var req struct {
+		Settings map[string]string `json:"settings" binding:"required"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		utils.BadRequest(c, "参数错误")
+		return
+	}
+
+	uid := userID.(string)
+	now := time.Now()
+	for key, val := range req.Settings {
+		setting := model.UserSetting{
+			UserID:       uid,
+			SettingKey:   key,
+			SettingValue: val,
+			UpdatedAt:    now,
+		}
+		service.ChatSvc.DB.Save(&setting)
+	}
+
+	GetUserSettingsHandler(c)
+}
+
+/**
+ * MarkMessagesReadHandler
+ * 功能：批量标记消息已读
+ */
+func MarkMessagesReadHandler(c *gin.Context) {
+	userID, ok := c.Get("user_id")
+	if !ok {
+		utils.Unauthorized(c, "未认证")
+		return
+	}
+
+	var req struct {
+		MessageIDs []uint `json:"message_ids" binding:"required"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		utils.BadRequest(c, "参数错误")
+		return
+	}
+
+	uid := userID.(string)
+	now := time.Now()
+	readIDs := make([]uint, 0, len(req.MessageIDs))
+	for _, mid := range req.MessageIDs {
+		receipt := model.MessageReadReceipt{
+			MessageID: mid,
+			UserID:    uid,
+			ReadAt:    now,
+		}
+		service.ChatSvc.DB.Where("message_id = ? AND user_id = ?", mid, uid).
+			Assign(receipt).FirstOrCreate(&receipt)
+		readIDs = append(readIDs, mid)
+
+		// 通知消息发送者（已读回执）
+		var msg model.ChatMessage
+		if err := service.ChatSvc.DB.First(&msg, mid).Error; err == nil && msg.SenderUserID != "" && msg.SenderUserID != uid {
+			payload := model.WsPayload{
+				RequestType: "messages_read",
+				Data: map[string]interface{}{
+					"message_ids": []uint{mid},
+					"reader_id":   uid,
+					"room_id":     msg.RoomID,
+				},
+			}
+			if bytes, err := json.Marshal(payload); err == nil {
+				service.ChatSvc.DispatchMessage(msg.SenderUserID, bytes)
+			}
+		}
+	}
+
+	utils.SuccessWithData(c, gin.H{"message_ids": readIDs}, "已标记已读")
+}