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snippet.go
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/
snippet.go
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package usecase
import (
"context"
"github.com/1kovalevskiy/snippetbox/internal/entity"
)
type (
Snippet interface {
CreateSnippet(ctx context.Context, t entity.SnippetCreate) (int, error)
GetSnippet(ctx context.Context, id int) (*entity.Snippet, error)
GetTenLatestSnippet(ctx context.Context) ([]*entity.Snippet, error)
}
SnippetRepo interface {
Insert(ctx context.Context, t entity.SnippetCreate) (int, error)
Get(ctx context.Context, id int) (*entity.Snippet, error)
Latest(ctx context.Context) ([]*entity.Snippet, error)
}
)
type SnippetUseCase struct {
repo SnippetRepo
}
func New(r SnippetRepo) *SnippetUseCase {
return &SnippetUseCase{r}
}
func (uc *SnippetUseCase) CreateSnippet(ctx context.Context, t entity.SnippetCreate) (int, error) {
id, err := uc.repo.Insert(ctx, t)
if err != nil {
return 0, err
}
return id, nil
}
func (uc *SnippetUseCase) GetSnippet(ctx context.Context, id int) (*entity.Snippet, error) {
snippet, err := uc.repo.Get(ctx, id)
if err != nil {
return nil, err
}
return snippet, nil
}
func (uc *SnippetUseCase) GetTenLatestSnippet(ctx context.Context) ([]*entity.Snippet, error) {
snippets, err := uc.repo.Latest(ctx)
if err != nil {
return nil, err
}
return snippets, nil
}