feat:时间线相关rabbitMQ

backend/internal/middleware/rabbitmq/timelineMQ.go

@@ -0,0 +1,55 @@
+package rabbitmq
+
+import (
+	"context"
+	"errors"
+	"time"
+)
+
+type TimelineMQ struct {
+	*RabbitMQ
+}
+
+const (
+	timelineExchange   = "video.timeline.events"
+	timelineQueue      = "video.timeline.update.queue"
+	timelineBindingKey = "video.timeline.*"
+	timelinePublishRK  = "video.timeline.publish"
+)
+
+type TimelineEvent struct {
+	EventID    string    `json:"event_id"`
+	ViedoID    uint      `json:"video_id"`
+	CreateTime int64     `json:"create_time"`
+	OccurredAt time.Time `json:"occurred_at"`
+}
+
+func NewTimelineMQ(base *RabbitMQ) (*TimelineMQ, error) {
+	if base == nil {
+		return nil, errors.New("rabbitmq base is nil")
+	}
+	if err := base.DeclareTopic(timelineExchange, timelineQueue, timelineBindingKey); err != nil {
+		return nil, err
+	}
+	return &TimelineMQ{RabbitMQ: base}, nil
+}
+
+func (t *TimelineMQ) PublishVideo(ctx context.Context, videoID uint, createTime time.Time) error {
+	if t == nil || t.RabbitMQ == nil {
+		return errors.New("like mq is not initialized")
+	}
+	if videoID == 0 {
+		return errors.New("videoID are required")
+	}
+	id, err := newEventID(16)
+	if err != nil {
+		return err
+	}
+	timeline := TimelineEvent{
+		EventID:    id,
+		ViedoID:    videoID,
+		CreateTime: createTime.UnixMilli(),
+		OccurredAt: time.Now(),
+	}
+	return t.PublishJSON(ctx, timelineExchange, timelinePublishRK, timeline)
+}