escalate

type Decision struct {
	Tier  Tier
	Score float64
	// Reason is a human-readable account of the scoring, recorded in the
	// artifact so a caller never has to guess why a page was judged cheap.
	Reason string
	// Pinned reports that the tier came from per-domain memory rather than from
	// this page's score.
	Pinned bool
	// Factors is the itemised scoring, for `sieve doctor` and for tuning.
	Factors []Factor
}

type Factor struct {
	Name   string  `json:"name"`
	Value  float64 `json:"value"`
	Weight float64 `json:"weight"`
	Note   string  `json:"note,omitempty"`
}

type Memory struct {
	// contains filtered or unexported fields
}

type Thresholds struct {
	// EscalateAbove is the score at or above which a browser is used.
	EscalateAbove float64
	// SweepAbove is the score at or above which the full sweep is used rather
	// than a single post-settle capture.
	SweepAbove float64
	// RecoverAbove is the score at or above which canvas recovery runs.
	RecoverAbove float64

	// MinStaticChars is the amount of readable text below which static
	// extraction is treated as having failed outright, regardless of anything
	// else. A page with 200 characters is a shell.
	MinStaticChars int
	// ThinTextRatio is the text-to-markup ratio below which the served document
	// looks like an application shell.
	ThinTextRatio float64
	// CanvasViewportShare is the fraction of the viewport a canvas must cover
	// for recovery to be worth attempting.
	CanvasViewportShare float64

	// ShatteredTextRatio is the share of text runs that may be one- or
	// two-character fragments before the served HTML is treated as split text
	// that only a browser can reassemble.
	ShatteredTextRatio float64
	// MinShatteredRuns stops the ratio firing on tiny documents, where three
	// fragments out of eight runs is noise rather than a pattern.
	MinShatteredRuns int
}

type Tier string