63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
// monorepo/cloud/backend/internal/maplefile/usecase/filemetadata/get.go
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package filemetadata
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import (
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"go.uber.org/zap"
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"github.com/gocql/gocql"
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"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/config"
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dom_file "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/domain/file"
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"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/pkg/httperror"
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)
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type GetFileMetadataUseCase interface {
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Execute(id gocql.UUID) (*dom_file.File, error)
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}
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type getFileMetadataUseCaseImpl struct {
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config *config.Configuration
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logger *zap.Logger
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repo dom_file.FileMetadataRepository
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}
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func NewGetFileMetadataUseCase(
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config *config.Configuration,
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logger *zap.Logger,
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repo dom_file.FileMetadataRepository,
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) GetFileMetadataUseCase {
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logger = logger.Named("GetFileMetadataUseCase")
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return &getFileMetadataUseCaseImpl{config, logger, repo}
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}
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func (uc *getFileMetadataUseCaseImpl) Execute(id gocql.UUID) (*dom_file.File, error) {
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//
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// STEP 1: Validation.
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//
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e := make(map[string]string)
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if id.String() == "" {
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e["id"] = "File ID is required"
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}
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if len(e) != 0 {
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uc.logger.Warn("Failed validating file metadata retrieval",
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zap.Any("error", e))
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return nil, httperror.NewForBadRequest(&e)
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}
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//
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// STEP 2: Get from database.
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//
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file, err := uc.repo.Get(id)
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if err != nil {
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return nil, err
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}
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if file == nil {
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uc.logger.Debug("File metadata not found",
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zap.Any("id", id))
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return nil, httperror.NewForNotFoundWithSingleField("message", "File not found")
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}
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return file, nil
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}
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