From b2ad3d2971c520e57850e4b8b6a25ec9c34a3f63 Mon Sep 17 00:00:00 2001
From: undefined <i@undefined.moe>
Date: Sat, 11 Dec 2021 20:12:21 +0800
Subject: [PATCH] core: remove useless difficulty calculation

---
 packages/hydrooj/src/handler/judge.ts   | 3 ---
 packages/hydrooj/src/handler/problem.ts | 1 -
 packages/hydrooj/src/model/problem.ts   | 1 -
 packages/hydrooj/src/upgrade.ts         | 6 ------
 4 files changed, 11 deletions(-)

diff --git a/packages/hydrooj/src/handler/judge.ts b/packages/hydrooj/src/handler/judge.ts
index 930a29f4..2130e4a2 100644
--- a/packages/hydrooj/src/handler/judge.ts
+++ b/packages/hydrooj/src/handler/judge.ts
@@ -1,6 +1,5 @@
 import { ObjectID } from 'mongodb';
 import { JudgeResultBody, RecordDoc, TestCase } from '../interface';
-import difficultyAlgorithm from '../lib/difficulty';
 import { Logger } from '../logger';
 import * as builtin from '../model/builtin';
 import * as contest from '../model/contest';
@@ -34,9 +33,7 @@ export async function postJudge(rdoc: RecordDoc) {
         ? await problem.inc(rdoc.domainId, rdoc.pid, 'nAccept', 1)
         : await problem.get(rdoc.domainId, rdoc.pid);
     if (pdoc) {
-        const difficulty = difficultyAlgorithm(pdoc.nSubmit, pdoc.nAccept);
         await Promise.all([
-            problem.edit(pdoc.domainId, pdoc.docId, { difficulty }),
             problem.inc(pdoc.domainId, pdoc.docId, `stats.${builtin.STATUS_SHORT_TEXTS[rdoc.status]}`, 1),
             problem.inc(pdoc.domainId, pdoc.docId, `stats.s${rdoc.score}`, 1),
         ]);
diff --git a/packages/hydrooj/src/handler/problem.ts b/packages/hydrooj/src/handler/problem.ts
index 96a4038c..6a923065 100644
--- a/packages/hydrooj/src/handler/problem.ts
+++ b/packages/hydrooj/src/handler/problem.ts
@@ -14,7 +14,6 @@ import {
     ProblemConfig,
     ProblemDoc, ProblemStatusDoc, Tdoc, User,
 } from '../interface';
-import difficultyAlgorithm from '../lib/difficulty';
 import paginate from '../lib/paginate';
 import { isPid, parsePid as convertPid } from '../lib/validator';
 import { PERM, PRIV } from '../model/builtin';
diff --git a/packages/hydrooj/src/model/problem.ts b/packages/hydrooj/src/model/problem.ts
index 112ac0e3..9ccd03a2 100644
--- a/packages/hydrooj/src/model/problem.ts
+++ b/packages/hydrooj/src/model/problem.ts
@@ -8,7 +8,6 @@ import { ProblemNotFoundError, ValidationError } from '../error';
 import type {
     Document, ProblemDict, ProblemStatusDoc,
 } from '../interface';
-import difficultyAlgorithm from '../lib/difficulty';
 import { parseConfig } from '../lib/testdataConfig';
 import * as bus from '../service/bus';
 import {
diff --git a/packages/hydrooj/src/upgrade.ts b/packages/hydrooj/src/upgrade.ts
index 47f660d3..cc296f37 100644
--- a/packages/hydrooj/src/upgrade.ts
+++ b/packages/hydrooj/src/upgrade.ts
@@ -9,7 +9,6 @@ import { GridFSBucket, ObjectID } from 'mongodb';
 import Queue from 'p-queue';
 import { convertIniConfig } from '@hydrooj/utils/lib/cases';
 import { buildContent } from './lib/content';
-import difficultyAlgorithm from './lib/difficulty';
 import { size } from './lib/misc';
 import { Logger } from './logger';
 import { PRIV, STATUS } from './model/builtin';
@@ -199,11 +198,6 @@ const scripts: UpgradeScript[] = [
     },
     // Update problem difficulty
     async function _12_13() {
-        const _FRESH_INSTALL_IGNORE = 1;
-        await iterateAllProblem(['nSubmit', 'nAccept'], async (pdoc) => {
-            const difficulty = difficultyAlgorithm(pdoc.nSubmit, pdoc.nAccept);
-            await problem.edit(pdoc.domainId, pdoc.docId, { difficulty });
-        });
         return true;
     },
     // Set domain owner perm