media_library

type Base struct {
	FileName    string `sql:"size:10240"`
	Url         string
	CropOptions map[string]*CropOption `json:",omitempty"`
	Crop        bool                   `json:"-"`
	Valid       bool                   `json:"-"`
	FileHeader  fileHeader             `json:"-"`
	Reader      io.Reader              `json:"-"`
}

type CropOption struct {
	X, Y, Width, Height int
}

type FileSystem struct {
	Base
}

type MediaLibrary interface {
	Scan(value interface{}) error
	Value() (driver.Value, error)

	GetURLTemplate(*Option) string
	GetURL(option *Option, scope *gorm.Scope, field *gorm.Field, templater URLTemplater) string

	GetFileHeader() fileHeader
	GetFileName() string

	GetSizes() map[string]Size
	NeedCrop() bool
	GetCropOption(name string) *image.Rectangle

	Store(url string, option *Option, reader io.Reader) error
	Retrieve(url string) (*os.File, error)

	IsImage() bool

	URL(style ...string) string
	String() string
}

type Option map[string]string

type Size struct {
	Width  int
	Height int
}

type URLTemplater interface {
	GetURLTemplate(*Option) string
}