equiv

type AIFields struct {
	MainText string          // innerText of <main> > <article> > <div class="main"> (first non-empty wins)
	Outline  []Heading       // h1-h6 in document order
	JSONLD   []string        // same content as SEOFields.JSONLD
	Semantic map[string]bool // which semantic elements are present
	NavLinks []string        // hrefs inside <nav>
}

type Heading struct {
	Level int
	Text  string
}

type Link struct {
	Href     string
	Nofollow bool
}

type Mode string

type Report struct {
	Mode        Mode
	Identical   int
	Differing   []string // relative paths (non-whitelisted)
	Whitelisted []string // relative paths that matched the allowlist
	MissingInA  []string // files only in B
	ExtraInA    []string // files only in A
}

type SEOFields struct {
	Title       string
	Description string
	OG          map[string]string // property -> content
	Twitter     map[string]string // name (twitter:*) -> content
	Canonical   string
	Robots      string
	Headings    []Heading
	JSONLD      []string // normalized (re-marshaled) JSON strings
	Links       []Link   // href + nofollow pairs
}