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service.go
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service.go
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package base
import (
"mime/multipart"
"github.com/GenerateNU/sac/backend/entities/models"
"github.com/GenerateNU/sac/backend/errors"
"github.com/GenerateNU/sac/backend/integrations/file"
"github.com/GenerateNU/sac/backend/types"
"github.com/GenerateNU/sac/backend/utilities"
)
type FileServiceInterface interface {
GetFiles(limit string, page string) ([]models.File, *errors.Error)
GetFile(fileID string) (*models.File, *errors.Error)
CreateFile(fileBody *models.CreateFileRequestBody, formFile *multipart.FileHeader) (*models.File, *errors.Error)
DeleteFile(fileID string) *errors.Error
}
type FileService struct {
types.ServiceParams
}
func NewFileService(serviceParams types.ServiceParams) FileServiceInterface {
return &FileService{serviceParams}
}
func (f *FileService) GetFiles(limit string, page string) ([]models.File, *errors.Error) {
limitAsInt, err := utilities.ValidateNonNegative(limit)
if err != nil {
return nil, &errors.FailedToValidateLimit
}
pageAsInt, err := utilities.ValidateNonNegative(page)
if err != nil {
return nil, &errors.FailedToValidatePage
}
return GetFiles(f.DB, *limitAsInt, *pageAsInt)
}
func (f *FileService) GetFile(fileID string) (*models.File, *errors.Error) {
idAsUUID, err := utilities.ValidateID(fileID)
if err != nil {
return nil, &errors.FailedToValidateID
}
return GetFile(f.DB, *idAsUUID)
}
func (f *FileService) CreateFile(fileBody *models.CreateFileRequestBody, fileHeader *multipart.FileHeader) (*models.File, *errors.Error) {
if err := f.Validate.Struct(fileBody); err != nil {
return nil, &errors.FailedToValidateFile
}
fileInfo, err := f.Integrations.File.UploadFile(fileBody.OwnerType, fileHeader, []file.FileType{file.ALL})
if err != nil {
return nil, &errors.FailedToUploadFile
}
file, err := CreateFile(f.DB, fileBody.OwnerID, fileBody.OwnerType, *fileInfo)
if err != nil {
return nil, &errors.FailedToCreateFile
}
return file, nil
}
func (f *FileService) DeleteFile(fileID string) *errors.Error {
idAsUUID, err := utilities.ValidateID(fileID)
if err != nil {
return &errors.FailedToValidateID
}
return DeleteFile(f.DB, *idAsUUID)
}