feat(eventbus): implement conversation and ticket assignment event handlers with notifications

internal/services/event_handlers/conversation_assigned_event_handler.go

@@ -0,0 +1,85 @@
+package event_handlers
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"cs-agent/internal/events"
+	"cs-agent/internal/models"
+	"cs-agent/internal/pkg/enums"
+	"cs-agent/internal/pkg/eventbus"
+	"cs-agent/internal/services"
+
+	"github.com/mlogclub/simple/common/strs"
+)
+
+func init() {
+	eventbus.
+		Register[events.ConversationAssignedEvent]().
+		Subscribe(handleConversationAssignedNotify)
+}
+
+func handleConversationAssignedNotify(ctx context.Context, event events.ConversationAssignedEvent) error {
+	if event.ConversationID <= 0 || event.ToUserID <= 0 {
+		return nil
+	}
+	conversation := services.ConversationService.Get(event.ConversationID)
+	if conversation == nil {
+		return nil
+	}
+	return services.WxWorkNotifyService.SendTextToAssigneeOrDefault(event.ToUserID,
+		conversationAssignedNotifyTitle(event.AssignType),
+		buildConversationAssignedNotifyBody(conversation, event.ToUserID, event.Reason, event.AssignType))
+}
+
+func conversationAssignedNotifyTitle(assignType string) string {
+	switch strings.TrimSpace(assignType) {
+	case events.ConversationAssignTypeTransfer:
+		return "会话转接提醒"
+	case events.ConversationAssignTypeAutoAssign:
+		return "会话自动分配提醒"
+	default:
+		return "会话分配提醒"
+	}
+}
+
+func buildConversationAssignedNotifyBody(conversation *models.Conversation, assigneeID int64, reason string, assignType string) string {
+	if conversation == nil {
+		return ""
+	}
+	reasonLabel := "分配原因"
+	if strings.TrimSpace(assignType) == events.ConversationAssignTypeTransfer {
+		reasonLabel = "转接原因"
+	}
+	lines := []string{
+		fmt.Sprintf("会话ID: #%d", conversation.ID),
+		fmt.Sprintf("会话主题: %s", strs.DefaultIfBlank(conversation.Subject, "-")),
+		fmt.Sprintf("接入渠道: %s", enums.GetExternalSourceLabel(conversation.ExternalSource)),
+		fmt.Sprintf("当前状态: %s", enums.GetIMConversationStatusLabel(conversation.Status)),
+		fmt.Sprintf("处理人: %s", resolveNotifyUserLabel(assigneeID)),
+	}
+	if strings.TrimSpace(reason) != "" {
+		lines = append(lines, fmt.Sprintf("%s: %s", reasonLabel, strings.TrimSpace(reason)))
+	}
+	lines = append(lines, fmt.Sprintf("时间: %s", time.Now().Format("2006-01-02 15:04:05")))
+	return strings.Join(lines, "\n")
+}
+
+func resolveNotifyUserLabel(userID int64) string {
+	if userID <= 0 {
+		return "-"
+	}
+	user := services.UserService.Get(userID)
+	if user == nil {
+		return fmt.Sprintf("用户#%d", userID)
+	}
+	if nickname := strings.TrimSpace(user.Nickname); nickname != "" {
+		return nickname
+	}
+	if username := strings.TrimSpace(user.Username); username != "" {
+		return username
+	}
+	return fmt.Sprintf("用户#%d", userID)
+}