feat: Update Fiber version to v2 and update internal controller and search logic to use new index module

This commit is contained in:
2025-03-25 21:09:01 +01:00
parent 8746f789c4
commit ed201de318
9 changed files with 85 additions and 62 deletions

View File

@@ -1,63 +0,0 @@
package search
import (
"bufio"
"log"
"os"
"strings"
)
// needs to be saved in a file or database
type InvertedIndex map[string]map[string]int
type DocumentFrequency map[string]int
var Index InvertedIndex
var DocFreq DocumentFrequency
var Files []string
// BuildIndex reads files and builds an inverted index.
func BuildIndex(files []string) (InvertedIndex, DocumentFrequency, error) {
index := make(InvertedIndex)
docFreq := make(DocumentFrequency)
for _, file := range files {
f, err := os.Open(file)
if err != nil {
return nil, nil, err
}
defer f.Close()
seenTerms := make(map[string]bool) // Track terms in this document
scanner := bufio.NewScanner(f)
scanner.Split(bufio.ScanWords)
for scanner.Scan() {
word := strings.ToLower(strings.Trim(scanner.Text(), ",.!?"))
if index[word] == nil {
index[word] = make(map[string]int)
}
index[word][file]++
if !seenTerms[word] {
docFreq[word]++
seenTerms[word] = true
}
}
}
return index, docFreq, nil
}
func TestIndex() {
// Index files
files := []string{"data/doc1.txt", "data/doc2.txt", "data/doc3.txt"}
index, docFreq, err := BuildIndex(files)
if err != nil {
log.Fatalf("Error building index: %v", err)
}
Files = files
Index = index
DocFreq = docFreq
}

View File

@@ -3,6 +3,8 @@ package search
import (
"math"
"sort"
"git.dev-null.rocks/alexohneander/gosearch/pkg/index"
)
// SearchResult stores the document and its relevance score.
@@ -12,7 +14,7 @@ type SearchResult struct {
}
// Search processes different types of queries using TF-IDF scoring.
func Search(terms []string, queryType string, index InvertedIndex, docFreq DocumentFrequency, numDocs int) []SearchResult {
func Search(terms []string, queryType string, index index.InvertedIndex, docFreq index.DocumentFrequency, numDocs int) []SearchResult {
scores := make(map[string]float64)
if queryType == "AND" {
@@ -40,7 +42,7 @@ func Search(terms []string, queryType string, index InvertedIndex, docFreq Docum
}
// Helper function to score a single document based on terms
func scoreDoc(terms []string, doc string, index InvertedIndex, docFreq DocumentFrequency, numDocs int) float64 {
func scoreDoc(terms []string, doc string, index index.InvertedIndex, docFreq index.DocumentFrequency, numDocs int) float64 {
score := 0.0
for _, term := range terms {
tf := float64(index[term][doc])
@@ -52,7 +54,7 @@ func scoreDoc(terms []string, doc string, index InvertedIndex, docFreq DocumentF
}
// Helper function to intersect documents for AND logic
func intersectDocs(terms []string, index InvertedIndex) []string {
func intersectDocs(terms []string, index index.InvertedIndex) []string {
if len(terms) == 0 {
return nil
}