feat: add video module

internal/video/service.go

@@ -0,0 +1,51 @@
+package video
+
+import (
+	"context"
+	"errors"
+)
+
+type VideoService struct {
+	repo *VideoRepository
+}
+
+func NewVideoService(repo *VideoRepository) *VideoService {
+	return &VideoService{repo: repo}
+}
+
+func (vs *VideoService) Publish(ctx context.Context, video *Video) error {
+	if video.Title == "" {
+		return errors.New("title is required")
+	}
+	if video.PlayURL == "" {
+		return errors.New("play url is required")
+	}
+	if err := vs.repo.CreateVideo(ctx, video); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (vs *VideoService) ListByAuthorID(ctx context.Context, authorID uint) ([]Video, error) {
+	videos, err := vs.repo.ListByAuthorID(ctx, int64(authorID))
+	if err != nil {
+		return nil, err
+	}
+	return videos, nil
+}
+
+func (vs *VideoService) ListLatest(ctx context.Context) ([]Video, error) {
+	videos, err := vs.repo.ListLatest(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return videos, nil
+}
+
+func (vs *VideoService) GetDetail(ctx context.Context, id uint) (*Video, error) {
+	video, err := vs.repo.GetByID(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	return video, nil
+}