package scoring

import (
	"math"
	"searchEngine/core/index"
)

func CalculateIDF(totalDocs int, docFrequency int) float64 {
	if docFrequency == 0 {
		return 0.0
	}
	return math.Log10(float64(totalDocs) / float64(docFrequency))
}

func ScoreTFIDF(p index.Posting, idf float64) float64 {
	return FieldScore(p) * idf
}