From c91c3afd8700138f8eb8a25a4ae422c2c9e46cea Mon Sep 17 00:00:00 2001
From: alex <alexander.vrabel@proton.me>
Date: Tue, 28 Jul 2026 17:37:06 +0200
Subject: refactored entire code base to be in the package core so i can later
 implement interfaces to interact with the engine

---
 core/scoring/idf.go | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 core/scoring/idf.go

(limited to 'core/scoring/idf.go')

diff --git a/core/scoring/idf.go b/core/scoring/idf.go
new file mode 100644
index 0000000..f5aaecd
--- /dev/null
+++ b/core/scoring/idf.go
@@ -0,0 +1,17 @@
+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
+}
-- 
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