From 675bc15a97c0633a585a768f38fe6cfe499e1156 Mon Sep 17 00:00:00 2001
From: DongZoo Lee <dongzoo@kodebox.io>
Date: Thu, 12 Jan 2023 18:47:40 +0900
Subject: [PATCH] Remove client handle on Codeforces API request fails

---
 utils/cofo.js | 9 +++++++--
 utils/sql.js  | 7 +++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/utils/cofo.js b/utils/cofo.js
index 4b6e683..2b497f0 100644
--- a/utils/cofo.js
+++ b/utils/cofo.js
@@ -1,6 +1,6 @@
 const cofo = (module.exports = {});
 const axios = require("axios");
-
+const sql = require("./sql");
 const logger = require("./logger");
 
 cofo.getTier = async (id) => {
@@ -17,7 +17,12 @@ cofo.getTier = async (id) => {
       return await cofo.getTier(changedHandle);
     }
 
-    logger.exception(error.response.data.comment);
+    const reg = new RegExp("handles: User with handle (.*?) not found");
+    const errorMessage = error.response.data.comment;
+    const matched = errorMessage.match(reg);
+    if (matched && matched[1]) sql.removeClient(matched[1]);
+
+    logger.exception(`${error.response.data.comment} and was removed.`);
 
     return { status: "FAILED", result: [] };
   }
diff --git a/utils/sql.js b/utils/sql.js
index 357c0f2..10ad875 100644
--- a/utils/sql.js
+++ b/utils/sql.js
@@ -50,3 +50,10 @@ sql.getClients = async () => {
     console.error(error);
   }
 };
+sql.removeClient = async (handle) => {
+  try {
+    await connection.query(`DELETE FROM clients WHERE handle=?`, [handle]);
+  } catch (error) {
+    console.error(error);
+  }
+};