添加消息发送API、丰富种子对话数据、Dashboard支持真实消息发送和客户名显示

server/cmd/seed/main.go

@@ -95,11 +95,32 @@ func seed() {
 	}
 	model.DB.Create(&sessions)
 
-	// Messages
+	// Messages - 模拟真实对话
 	messages := []model.Message{
-		{SessionID: sessions[0].ID, SenderType: "visitor", SenderID: &customers[0].ID, Content: "你好，我的订单怎么还没发货？", Type: "text", Seq: 1, SentAt: now},
-		{SessionID: sessions[0].ID, SenderType: "agent", SenderID: &agent1.ID, Content: "您好，请提供一下您的订单号，我帮您查看", Type: "text", Seq: 2, SentAt: now},
-		{SessionID: sessions[0].ID, SenderType: "visitor", SenderID: &customers[0].ID, Content: "订单号 AB20260714001", Type: "text", Seq: 3, SentAt: now},
+		// Session 1: 张三 - 订单物流咨询 (urgent)
+		{SessionID: sessions[0].ID, SenderType: "visitor", Content: "你好，我的订单怎么还没发货？已经3天了", Type: "text", Seq: 1, SentAt: now.Add(-10 * time.Minute)},
+		{SessionID: sessions[0].ID, SenderType: "agent", SenderID: &agent1.ID, Content: "您好，请提供一下您的订单号，我帮您查询", Type: "text", Seq: 2, SentAt: now.Add(-9 * time.Minute)},
+		{SessionID: sessions[0].ID, SenderType: "visitor", Content: "订单号 AB20260714001", Type: "text", Seq: 3, SentAt: now.Add(-8 * time.Minute)},
+		{SessionID: sessions[0].ID, SenderType: "agent", SenderID: &agent1.ID, Content: "稍等，正在为您查询物流信息...", Type: "text", Seq: 4, SentAt: now.Add(-7 * time.Minute)},
+		{SessionID: sessions[0].ID, SenderType: "agent", SenderID: &agent1.ID, Content: "您好，您的包裹已到达北京分拨中心，预计明天下午送达。给您带来不便敬请谅解", Type: "text", Seq: 5, SentAt: now.Add(-6 * time.Minute)},
+
+		// Session 2: 李四 - 退换货咨询 (active)
+		{SessionID: sessions[1].ID, SenderType: "visitor", Content: "你好，我买的商品有质量问题，想退货", Type: "text", Seq: 1, SentAt: now.Add(-5 * time.Minute)},
+		{SessionID: sessions[1].ID, SenderType: "agent", SenderID: &agent2.ID, Content: "非常抱歉给您带来不便。请拍照上传问题商品图片，我们核实后会为您办理退货", Type: "text", Seq: 2, SentAt: now.Add(-4 * time.Minute)},
+		{SessionID: sessions[1].ID, SenderType: "visitor", Content: "好的，我拍照上传", Type: "text", Seq: 3, SentAt: now.Add(-3 * time.Minute)},
+
+		// Session 3: 王五 - 等待分配 (waiting)
+		{SessionID: sessions[2].ID, SenderType: "visitor", Content: "您好，请问企业版是否有优惠？我们公司需要50个坐席", Type: "text", Seq: 1, SentAt: now.Add(-2 * time.Minute)},
+
+		// Session 4: 赵六科技 - 已结束
+		{SessionID: sessions[3].ID, SenderType: "visitor", Content: "产品使用手册在哪里下载？", Type: "text", Seq: 1, SentAt: now.Add(-2 * time.Hour)},
+		{SessionID: sessions[3].ID, SenderType: "agent", SenderID: &agent3.ID, Content: "您好，请在官网帮助中心→文档下载中获取，也可直接访问 docs.example.com", Type: "text", Seq: 2, SentAt: now.Add(-1 * time.Hour + 55*time.Minute)},
+		{SessionID: sessions[3].ID, SenderType: "visitor", Content: "找到了，谢谢！", Type: "text", Seq: 3, SentAt: now.Add(-1 * time.Hour + 50*time.Minute)},
+
+		// Session 5: 钱七 - 已结束
+		{SessionID: sessions[4].ID, SenderType: "visitor", Content: "退款什么时候到账？已经3天了", Type: "text", Seq: 1, SentAt: now.Add(-3 * time.Hour)},
+		{SessionID: sessions[4].ID, SenderType: "agent", SenderID: &agent1.ID, Content: "您好，退款一般在3-5个工作日到账，我帮您催一下财务", Type: "text", Seq: 2, SentAt: now.Add(-2 * time.Hour + 55*time.Minute)},
+		{SessionID: sessions[4].ID, SenderType: "agent", SenderID: &agent1.ID, Content: "已为您加急处理，预计明天到账，请注意查收", Type: "text", Seq: 3, SentAt: now.Add(-2 * time.Hour + 50*time.Minute)},
 	}
 	model.DB.Create(&messages)
 

server/internal/handler/router.go

@@ -41,6 +41,7 @@ func SetupRoutes(r *gin.Engine) {
 		sessions.POST("/:id/transfer", session.Transfer)
 		sessions.POST("/:id/end", session.End)
 		sessions.PUT("/:id/priority", session.UpdatePriority)
+		sessions.POST("/:id/messages", session.SendMessage)
 
 		// 客户管理
 		customers := authRequired.Group("/customers")

server/internal/handler/session.go

@@ -2,6 +2,7 @@ package handler
 
 import (
 	"net/http"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"kefu-sys/server/internal/middleware"
@@ -12,6 +13,52 @@ type SessionHandler struct{}
 
 func NewSessionHandler() *SessionHandler { return &SessionHandler{} }
 
+type SendMessageReq struct {
+	Content string `json:"content" binding:"required"`
+	Type    string `json:"type"`
+}
+
+func (h *SessionHandler) SendMessage(c *gin.Context) {
+	tenantID := middleware.GetTenantID(c)
+	userID := middleware.GetUserID(c)
+	id := c.Param("id")
+
+	var req SendMessageReq
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 400, "message": "参数错误"})
+		return
+	}
+	if req.Type == "" {
+		req.Type = "text"
+	}
+
+	var session model.Session
+	if err := model.DB.Where("id = ? AND tenant_id = ?", id, tenantID).First(&session).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"code": 404, "message": "会话不存在"})
+		return
+	}
+
+	var maxSeq int
+	model.DB.Model(&model.Message{}).Where("session_id = ?", session.ID).Select("COALESCE(MAX(seq), 0)").Scan(&maxSeq)
+
+	msg := model.Message{
+		SessionID:  session.ID,
+		SenderType: "agent",
+		SenderID:   &userID,
+		Content:    req.Content,
+		Type:       req.Type,
+		Seq:        maxSeq + 1,
+		SentAt:     time.Now(),
+	}
+
+	if err := model.DB.Create(&msg).Error; err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 500, "message": "发送失败"})
+		return
+	}
+
+	middleware.JSON(c, msg)
+}
+
 type CreateSessionReq struct {
 	ChannelID  uint   `json:"channel_id"`
 	CustomerID uint   `json:"customer_id"`
@@ -170,7 +217,6 @@ func (h *SessionHandler) UpdatePriority(c *gin.Context) {
 
 func parseID(s string) uint {
 	var id uint
-	// Simple atoi for uint
 	for _, c := range s {
 		if c >= '0' && c <= '9' {
 			id = id*10 + uint(c-'0')