feat: add video module

internal/video/entity.go

@@ -0,0 +1,12 @@
+package video
+
+import "time"
+
+type Video struct {
+	ID          uint      `gorm:"primaryKey"`
+	AuthorID    uint      `gorm:"index;not null"`
+	Title       string    `gorm:"type:varchar(255);not null"`
+	Description string    `gorm:"type:varchar(255);"`
+	PlayURL     string    `gorm:"type:varchar(255);not null"`
+	CreateTime  time.Time `gorm:"autoCreateTime"`
+}

internal/video/repo.go

@@ -0,0 +1,55 @@
+package video
+
+import (
+	"context"
+
+	"gorm.io/gorm"
+)
+
+type VideoRepository struct {
+	db *gorm.DB
+}
+
+func NewVideoRepository(db *gorm.DB) *VideoRepository {
+	return &VideoRepository{db: db}
+}
+
+func (vr *VideoRepository) CreateVideo(ctx context.Context, video *Video) error {
+	if err := vr.db.WithContext(ctx).Create(video).Error; err != nil {
+		return err
+	}
+	return nil
+}
+
+func (vr *VideoRepository) ListByAuthorID(ctx context.Context, authorID int64) ([]Video, error) {
+	var videos []Video
+	if err := vr.db.WithContext(ctx).
+		Where("author_id = ?", authorID).
+		Order("create_time desc").
+		Limit(5).
+		Offset(0).
+		Find(&videos).Error; err != nil {
+		return nil, err
+	}
+	return videos, nil
+}
+
+func (vr *VideoRepository) ListLatest(ctx context.Context) ([]Video, error) {
+	var videos []Video
+	if err := vr.db.WithContext(ctx).
+		Order("create_time desc").
+		Limit(5).
+		Offset(0).
+		Find(&videos).Error; err != nil {
+		return nil, err
+	}
+	return videos, nil
+}
+
+func (vr *VideoRepository) GetByID(ctx context.Context, id uint) (*Video, error) {
+	var video Video
+	if err := vr.db.WithContext(ctx).First(&video, id).Error; err != nil {
+		return nil, err
+	}
+	return &video, nil
+}

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
+}