chrly/db/filesystem.go

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package db
import (
"os"
"path"
"strings"
"github.com/elyby/chrly/interfaces"
"github.com/elyby/chrly/model"
)
type FilesystemFactory struct {
BasePath string
CapesDirName string
}
func (f FilesystemFactory) CreateSkinsRepository() (interfaces.SkinsRepository, error) {
panic("skins repository not supported for this storage type")
}
func (f FilesystemFactory) CreateCapesRepository() (interfaces.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) {
if username == "" {
return nil, &CapeNotFoundError{username}
}
capePath := path.Join(repository.path, strings.ToLower(username) + ".png")
file, err := os.Open(capePath)
if err != nil {
return nil, &CapeNotFoundError{username}
}
return &model.Cape{
File: file,
}, nil
}