common

type Author struct {
	Name  string
	URI   string
	Email string
}

type Category struct {
	Domain string
	Text   string
}

type Channel struct {
	Categories     []Category
	Cloud          Cloud
	Copyright      string
	Description    string
	Docs           string
	Extensions     map[string]map[string][]Extension
	Generator      Generator
	Image          Image
	Items          []*Item
	Language       string
	LastBuildDate  string
	Links          []Link
	ManagingEditor string
	PubDate        string
	Rating         string
	SkipDays       []int
	SkipHours      []int
	TTL            int
	TextInput      Input
	Title          string
	WebMaster      string

	// Atom fields
	Author   Author
	ID       string
	Rights   string
	SubTitle SubTitle
}

type Cloud struct {
	Domain            string
	Port              int
	Path              string
	RegisterProcedure string
	Protocol          string
}

type Content struct {
	Type string
	Lang string
	Base string
	Text string
}

type Enclosure struct {
	URL    string
	Length int64
	Type   string
}

type Extension struct {
	Name      string
	Value     string
	Attrs     map[string]string
	Childrens map[string][]Extension
}

type GUID struct {
	GUID        string
	IsPermaLink bool
}

type Generator struct {
	URI     string
	Version string
	Text    string
}

type Image struct {
	Title       string
	URL         string
	Link        string
	Width       int
	Height      int
	Description string
}

type Input struct {
	Title       string
	Description string
	Name        string
	Link        string
}

type Item struct {
	// RSS and Shared fields
	Author      Author
	Categories  []Category
	Comments    string
	Description string
	Enclosures  []Enclosure
	Thumbnail   *Image
	Extensions  map[string]map[string][]Extension
	GUID        *GUID
	Links       []Link
	PubDate     string
	Source      *Source
	Title       string

	// Atom specific fields
	Content      *Content
	Contributors []string
	Generator    *Generator
	ID           string
}

type Link struct {
	Href     string
	Rel      string
	Type     string
	HrefLang string
}

type Parser interface {
	CanRead(io.Reader, func(charset string, input io.Reader) (io.Reader, error)) bool
	Read(io.Reader, *url.URL, func(charset string, input io.Reader) (io.Reader, error)) ([]*Channel, error)
}

type Source struct {
	URL  string
	Text string
}

type SubTitle struct {
	Type string
	Text string
}