add jobs

backend/app/events/subscribers/post_created.go

@@ -0,0 +1,99 @@
+package subscribers
+
+import (
+	"context"
+	"encoding/json"
+
+	"backend/app/events"
+	"backend/app/events/publishers"
+	"backend/app/http/posts"
+	"backend/app/jobs"
+	"backend/database/fields"
+	"backend/providers/job"
+
+	"git.ipao.vip/rogeecn/atom/contracts"
+	"github.com/ThreeDotsLabs/watermill/message"
+	"github.com/pkg/errors"
+	"github.com/samber/lo"
+	"github.com/sirupsen/logrus"
+)
+
+var _ contracts.EventHandler = (*PostCreated)(nil)
+
+// @provider(event)
+type PostCreated struct {
+	log *logrus.Entry `inject:"false"`
+
+	postSvc *posts.Service
+	job     *job.Job
+}
+
+func (e *PostCreated) Prepare() error {
+	e.log = logrus.WithField("module", "events.subscribers.user_register")
+	return nil
+}
+
+// PublishToTopic implements contracts.EventHandler.
+func (e *PostCreated) PublishToTopic() string {
+	return events.TopicProcessed.String()
+}
+
+// Topic implements contracts.EventHandler.
+func (e *PostCreated) Topic() string {
+	return events.TopicPostCreated.String()
+}
+
+// Handler implements contracts.EventHandler.
+func (e *PostCreated) Handler(msg *message.Message) ([]*message.Message, error) {
+	var payload publishers.PostCreated
+	err := json.Unmarshal(msg.Payload, &payload)
+	if err != nil {
+		return nil, err
+	}
+	e.log.Infof("received event %s", msg.Payload)
+
+	post, err := e.postSvc.GetPostByID(context.Background(), payload.ID)
+	if err != nil {
+		return nil, errors.Wrapf(err, "failed to get user by id: %d", payload.ID)
+	}
+
+	video, ok := lo.Find(post.Assets.Data, func(asset fields.MediaAsset) bool {
+		return asset.Type == fields.MediaAssetTypeVideo
+	})
+
+	if !ok {
+		e.log.Warnf("post %d %s has no video asset", post.ID, post.Title)
+		return nil, nil
+	}
+
+	_ = video
+
+	job, err := e.job.Client()
+	if err != nil {
+		return nil, err
+	}
+
+	// cut video
+	_, err = job.Insert(context.Background(), jobs.VideoCut{
+		PostID:   post.ID,
+		Hash:     video.Hash,
+		TenantID: post.TenantID,
+		UserID:   post.UserID,
+	}, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// extract audio
+	_, err = job.Insert(context.Background(), jobs.VideoExtractAudio{
+		PostID:   post.ID,
+		Hash:     video.Hash,
+		TenantID: post.TenantID,
+		UserID:   post.UserID,
+	}, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return nil, nil
+}