chrly/db/filesystem.go
2017-08-14 21:06:22 +03:00

61 lines
1.2 KiB
Go

package db
import (
"os"
"path"
"strings"
"elyby/minecraft-skinsystem/model"
"elyby/minecraft-skinsystem/repositories"
)
type FilesystemFactory struct {
BasePath string
CapesDirName string
}
func (f FilesystemFactory) CreateSkinsRepository() (repositories.SkinsRepository, error) {
panic("skins repository not supported for this storage type")
}
func (f FilesystemFactory) CreateCapesRepository() (repositories.CapesRepository, error) {
if err := f.validateFactoryConfig(); err != nil {
return nil, err
}
return &filesStorage{path: path.Join(f.BasePath, f.CapesDirName)}, nil
}
func (f FilesystemFactory) validateFactoryConfig() error {
if f.BasePath == "" {
return &ParamRequired{"basePath"}
}
if f.CapesDirName == "" {
f.CapesDirName = "capes"
}
return nil
}
type filesStorage struct {
path string
}
func (repository *filesStorage) FindByUsername(username string) (model.Cape, error) {
var record model.Cape
if username == "" {
return record, &CapeNotFoundError{username}
}
capePath := path.Join(repository.path, strings.ToLower(username) + ".png")
file, err := os.Open(capePath)
if err != nil {
return record, &CapeNotFoundError{username}
}
record.File = file
return record, nil
}