Function ScoreAndSuggestProducts

internal/semantic/semantic.go:87–253

ScoreAndSuggestProducts returns a scored, ranked list of product suggestions.

(
	query string,
	products []string,
	attributeValues map[string]map[string][]string,
	productGroups map[string]uint64,
	selectedTags []string,
)

// ScoreAndSuggestProducts returns a scored, ranked list of product suggestions.
func ScoreAndSuggestProducts(
	query string,
	products []string,
	attributeValues map[string]map[string][]string,
	productGroups map[string]uint64,
	selectedTags []string,
) []SuggestionItem {
	// Find allowed group from selected tags
	var allowedGroup *uint64
	for _, t := range selectedTags {
		if g, ok := productGroups[t]; ok {
			g := g
			allowedGroup = &g
			break
		}
	}

	filtered := make([]string, 0, len(products))
	for _, p := range products {
		if allowedGroup != nil {
			if g, ok := productGroups[p]; !ok || g != *allowedGroup {
				continue
			}
		}
		filtered = append(filtered, p)
	}

	if query == "" {
		items := make([]SuggestionItem, 0, len(filtered))
		for _, p := range filtered {
			already := false
			for _, t := range selectedTags {
				if t == p {
					already = true
					break
				}
			}
			items = append(items, SuggestionItem{Value: p, Display: p, AlreadySelected: already})
		}
		return items
	}

	q := strings.ToLower(query)

	type scored struct {
		item  SuggestionItem
		score int64
	}
	var result []scored

	fuzzyMatches := fuzzy.Find(q, filtered)
	fuzzyScores := map[string]int{}
	for _, m := range fuzzyMatches {
		fuzzyScores[filtered[m.Index]] = m.Score
	}

	for _, product := range filtered {
		idLower := strings.ToLower(product)