feat: Remove fastq.

packages/benchmarks/benchmark-table/index.mjs

@@ -1,81 +1,102 @@
-/* global console */
+/* global console , setImmediate*/
 
 import { readFile } from "fs/promises";
 import { create, insert, search, formatNanoseconds } from "@nearform/lyra";
 import { URL } from "node:url";
 
-const lines = JSON.parse(await readFile(new URL("../dataset/divinaCommedia.json", import.meta.url).pathname));
+async function populateDB(db, lines) {
+  let i = 0;
+  return new Promise(resolve => {
+    function insertBatch() {
+      const batch = lines.slice(i * 1000, (i + 1) * 1000);
+      i++;
 
-const db = create({
-  schema: {
-    id: "string",
-    txt: "string",
-  },
-});
+      if (!batch.length) {
+        return resolve();
+      }
 
-for (const line of lines) {
-  insert(db, line);
+      for (const line of batch) {
+        insert(db, line);
+      }
+
+      setImmediate(insertBatch);
+    }
+
+    setImmediate(insertBatch);
+  });
 }
 
-const d1 = search(db, {
-  term: "stelle",
-  properties: ["txt"],
-  exact: true,
-});
-
-const d2 = search(db, {
-  term: "stelle",
-  exact: true,
-});
-
-const d3 = search(db, {
-  term: "stele",
-  properties: "*",
-  tolerance: 1,
-});
-
-const d4 = search(db, {
-  term: "onde si muovono a diversi porti",
-  properties: "*",
-  exact: true,
-});
-
-const d5 = search(db, {
-  term: "ode si mossero a divisi porte",
-  properties: "*",
-  tolerance: 5,
-});
-
-const d6 = search(db, {
-  term: "ode si mossero a divisi porte",
-  properties: ["txt"],
-  tolerance: 5,
-});
-
-const table = `
+async function main() {
+  const db = create({
+    schema: {
+      id: "string",
+      txt: "string",
+    },
+  });
+
+  const lines = JSON.parse(await readFile(new URL("../dataset/divinaCommedia.json", import.meta.url).pathname));
+
+  await populateDB(db, lines);
+
+  const d1 = search(db, {
+    term: "stelle",
+    properties: ["txt"],
+    exact: true,
+  });
+
+  const d2 = search(db, {
+    term: "stelle",
+    exact: true,
+  });
+
+  const d3 = search(db, {
+    term: "stele",
+    properties: "*",
+    tolerance: 1,
+  });
+
+  const d4 = search(db, {
+    term: "onde si muovono a diversi porti",
+    properties: "*",
+    exact: true,
+  });
+
+  const d5 = search(db, {
+    term: "ode si mossero a divisi porte",
+    properties: "*",
+    tolerance: 5,
+  });
+
+  const d6 = search(db, {
+    term: "ode si mossero a divisi porte",
+    properties: ["txt"],
+    tolerance: 5,
+  });
+
+  const table = `
 | Search             | Term                                  | Properties | Typo tolerance | Time Elapsed  | Results     |
 |--------------------|---------------------------------------|------------|----------------|---------------|-------------|
 | **Exact search**   | \`"stelle"\`                          | \`["txt"]\`| \`N/A\`        | ${formatNanoseconds(
-  d1.elapsed,
-)} | ${d1.count} |
+    d1.elapsed,
+  )} | ${d1.count} |
 | **Exact search**   | \`"stelle"\`                          | \`"*"\`    | \`N/A\`        | ${formatNanoseconds(
-  d2.elapsed,
-)} | ${d2.count} |
+    d2.elapsed,
+  )} | ${d2.count} |
 | **Typo tolerance** | \`"stele"\`                           | \`"*"\`    | \`1\`          | ${formatNanoseconds(
-  d3.elapsed,
-)} | ${d3.count} | 
+    d3.elapsed,
+  )} | ${d3.count} | 
 | **Exact search**   | \`"onde si muovono a diversi porti"\` | \`"*"\`    | \`N/A\`        | ${formatNanoseconds(
-  d4.elapsed,
-)} | ${d4.count} | 
+    d4.elapsed,
+  )} | ${d4.count} | 
 | **Typo tolerance** | \`"ode si mossero a divisi porte"\`   | \`"*"\`    | \`5\`          | ${formatNanoseconds(
-  d5.elapsed,
-)} | ${d5.count} | 
+    d5.elapsed,
+  )} | ${d5.count} | 
 | **Typo tolerance** | \`"ode si mossero a divisi porte"\`   | \`["txt"]\`| \`5\`          | ${formatNanoseconds(
-  d6.elapsed,
-)} | ${d6.count} |
+    d6.elapsed,
+  )} | ${d6.count} |
 `;
 
-const markdownContent = `
+  const markdownContent = `
 # Benchmarks
 
 The following is an automated benchmark performed on the [Divina Commedia](https://en.wikipedia.org/wiki/Divina_Commedia) dataset. <br />
@@ -86,4 +107,7 @@ You can find the full dataset [here](https://github.com/nearform/lyra/blob/main/
 ${table}
 `;
 
-console.log(markdownContent);
+  console.log(markdownContent);
+}
+
+main();

packages/lyra/package.json

@@ -22,9 +22,6 @@
   "main": "./dist/cjs/lyra.js",
   "module": "./dist/esm/lyra.js",
   "types": "./dist/esm/lyra.d.ts",
-  "dependencies": {
-    "fastq": "^1.13.0"
-  },
   "devDependencies": {
     "@types/node": "^18.6.2",
     "@types/tap": "^15.0.7",

packages/lyra/src/insertion-checker.ts

@@ -0,0 +1,31 @@
+const kInsertions = Symbol("lyra.insertions");
+
+const warn =
+  "process" in globalThis
+    ? process.emitWarning
+    : function emitWarning(message: string, options: { code: string }) {
+        console.warn(`[WARNING] [${options.code}] ${message}`);
+      };
+
+export function trackInsertion(_lyra: unknown) {
+  const lyra = _lyra as object & { [kInsertions]?: number };
+
+  if (typeof lyra[kInsertions] !== "number") {
+    queueMicrotask(() => {
+      lyra[kInsertions] = undefined;
+    });
+
+    lyra[kInsertions] = 0;
+  }
+
+  if (lyra[kInsertions]! > 1000) {
+    warn(
+      "Lyra's insert operation is synchronous. Please avoid inserting a large number of document in a single operation in order not to block the main thread.",
+      { code: "LYRA0001" },
+    );
+
+    lyra[kInsertions] = -1;
+  } else if (lyra[kInsertions] >= 0) {
+    lyra[kInsertions]++;
+  }
+}

packages/lyra/src/levenshtein.ts

@@ -1,6 +1,13 @@
 export function levenshtein(a: string, b: string): number {
-  if (!a.length) return b.length;
-  if (!b.length) return a.length;
+  /* c8 ignore next 3 */
+  if (!a.length) {
+    return b.length;
+  }
+
+  /* c8 ignore next 3 */
+  if (!b.length) {
+    return a.length;
+  }
 
   let tmp;