refactor(code-search): replace Similarity with TokenizedSimilarity in JaccardSimilarity

The Similarity class has been renamed to TokenizedSimilarity and the JaccardSimilarity class now extends from this new class. Additionally, a new Similarity interface has been introduced.

Author: phodal

src/code-search/similar/algorithm/JaccardSimilarity.ts

@@ -1,5 +1,4 @@
-import { StopwordsBasedTokenizer } from '../../tokenizer/StopwordsBasedTokenizer';
-import { Similarity } from "./Similarity";
+import { TokenizedSimilarity } from "./TokenizedSimilarity";
 
 /**
  * Calculates the similarity score between a given path and a set of strings.
@@ -8,7 +7,7 @@ import { Similarity } from "./Similarity";
  * @param sets The set of strings to compare with the path.
  * @returns A number representing the similarity score between the path and the set of strings.
  */
-export class JaccardSimilarity extends Similarity {
+export class JaccardSimilarity extends TokenizedSimilarity {
 	/**
 	 * The `tokenLevelJaccardSimilarity` method calculates the Jaccard similarity between a query string and an array of string
 	 * arrays (chunks). The Jaccard similarity is a measure of the similarity between two sets and is defined as the size of

src/code-search/similar/algorithm/Similarity.ts src/code-search/similar/algorithm/TokenizedSimilarity.ts

@@ -1,6 +1,10 @@
 import { StopwordsBasedTokenizer } from "../../tokenizer/StopwordsBasedTokenizer";
 
-export abstract class Similarity {
+export interface Similarity {
+	computeInputSimilarity(query: string, chunks: Array<Array<string>>): Array<Array<number>>;
+}
+
+export abstract class TokenizedSimilarity implements Similarity {
 	tokenize(input: string): Set<string> {
 		return StopwordsBasedTokenizer.instance().tokenize(input);
 	}