From a1de58f364ef04c97ecad380427e6181f3bf707d Mon Sep 17 00:00:00 2001
From: Volpeon <git@volpeon.ink>
Date: Tue, 19 Oct 2021 18:14:00 +0200
Subject: Code improvements

---
 src/api/e621/index.ts | 41 ++++-------------------------------------
 1 file changed, 4 insertions(+), 37 deletions(-)

(limited to 'src/api/e621')

diff --git a/src/api/e621/index.ts b/src/api/e621/index.ts
index 5c5fd2a..a8abbcf 100644
--- a/src/api/e621/index.ts
+++ b/src/api/e621/index.ts
@@ -1,8 +1,7 @@
 import got from "got";
 import config from "../../config";
-import fs from "fs/promises";
-import path from "path";
 import delay from "../../util/delay";
+import dedupe from "../../services/dedupe";
 
 export interface GetPostQuery {
     tags: readonly string[];
@@ -34,35 +33,6 @@ export const client = got.extend({
     },
 });
 
-const dedupePath = path.join(__dirname, "e926dedupe.json");
-const dedupeMax = 50;
-let dedupeDb: number[] | undefined;
-
-async function loadDedupeDb() {
-    if (dedupeDb) {
-        return;
-    }
-
-    try {
-        await fs.stat(dedupePath);
-    } catch {
-        await saveDedupeDb();
-    }
-
-    const d = await fs.readFile(dedupePath, "utf8");
-    const dd = JSON.parse(d);
-
-    if (dd instanceof Array) {
-        dedupeDb = dd.slice(-1 * dedupeMax);
-    } else {
-        dedupeDb = [];
-    }
-}
-
-async function saveDedupeDb() {
-    await fs.writeFile(dedupePath, JSON.stringify(dedupeDb ?? []), "utf8");
-}
-
 export async function getPostById(id: number) {
     const response = await client
         .get("https://e926.net/posts.json", {
@@ -80,8 +50,6 @@ export async function getPostById(id: number) {
 }
 
 export async function getRandomPost(query: GetPostQuery) {
-    await loadDedupeDb();
-
     const page = Math.floor(Math.random() * (query.maxPage - 1)) + 1;
 
     const response = await client
@@ -101,13 +69,12 @@ export async function getRandomPost(query: GetPostQuery) {
     const postIndex = Math.floor(Math.random() * response.posts.length);
     const post = response.posts[postIndex];
 
-    if (dedupeDb.includes(post.id)) {
+    const isDupe = await dedupe.check({ provider: "e926", id: post.id });
+
+    if (isDupe) {
         await delay(1000);
         return getRandomPost(query);
     }
 
-    dedupeDb.push(post.id);
-    await saveDedupeDb();
-
     return post;
 }
-- 
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