From 342b573a0cafd556ddad18478ad8fd0da2ccc3aa Mon Sep 17 00:00:00 2001
From: Yechan Lee <yechan24680@gmail.com>
Date: Tue, 5 Dec 2023 13:21:17 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=EB=8C=80=ED=9A=8C=20=EB=AC=B8=EC=A0=9C?=
 =?UTF-8?q?=20=EC=83=81=EC=84=B8=20=EC=A1=B0=ED=9A=8C=20API=EC=97=90=20?=
 =?UTF-8?q?=ED=85=8C=EC=8A=A4=ED=8A=B8=EC=BC=80=EC=9D=B4=EC=8A=A4=20?=
 =?UTF-8?q?=EC=A0=95=EB=B3=B4=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../dto/competition.problem.response.dto.ts   | 12 +++++-
 .../services/competition.service.ts           | 42 ++++++++++++++++++-
 2 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/be/algo-with-me-api/src/competition/dto/competition.problem.response.dto.ts b/be/algo-with-me-api/src/competition/dto/competition.problem.response.dto.ts
index 8699f03..a9a798c 100644
--- a/be/algo-with-me-api/src/competition/dto/competition.problem.response.dto.ts
+++ b/be/algo-with-me-api/src/competition/dto/competition.problem.response.dto.ts
@@ -1,5 +1,13 @@
 import { ApiProperty } from '@nestjs/swagger';
 
+export type TestcaseParameterMetadata = { name: string; type: string };
+export type TestcaseData = { input: any[]; output: any };
+export interface ITestcases {
+  input: TestcaseParameterMetadata[];
+  output: TestcaseParameterMetadata;
+  data: TestcaseData[];
+}
+
 export class CompetitionProblemResponseDto {
   constructor(
     id: number,
@@ -8,7 +16,7 @@ export class CompetitionProblemResponseDto {
     memoryLimit: number,
     content: string,
     solutionCode: string,
-    testcases: object[],
+    testcases: ITestcases,
     createdAt: Date,
   ) {
     this.id = id;
@@ -40,7 +48,7 @@ export class CompetitionProblemResponseDto {
   solutionCode: string;
 
   @ApiProperty({ description: '공개 테스트 케이스' })
-  testcases: object[];
+  testcases: ITestcases;
 
   @ApiProperty()
   createdAt: Date;
diff --git a/be/algo-with-me-api/src/competition/services/competition.service.ts b/be/algo-with-me-api/src/competition/services/competition.service.ts
index 0eb5951..14c3fb5 100644
--- a/be/algo-with-me-api/src/competition/services/competition.service.ts
+++ b/be/algo-with-me-api/src/competition/services/competition.service.ts
@@ -14,11 +14,16 @@ import { Server } from 'socket.io';
 import { DataSource, Repository } from 'typeorm';
 
 import { existsSync, readFileSync } from 'fs';
+import * as fs from 'fs';
 import * as path from 'path';
 
 import { ProblemService } from './problem.service';
 import { RESULT } from '../competition.enums';
-import { CompetitionProblemResponseDto } from '../dto/competition.problem.response.dto';
+import {
+  CompetitionProblemResponseDto,
+  ITestcases,
+  TestcaseData,
+} from '../dto/competition.problem.response.dto';
 import { CreateSubmissionDto } from '../dto/create-submission.dto';
 import { ProblemSimpleResponseDto } from '../dto/problem.simple.response.dto';
 import { ScoreResultDto } from '../dto/score-result.dto';
@@ -167,10 +172,43 @@ export class CompetitionService {
 
   async findOneProblem(id: number) {
     const problem = await this.problemRepository.findOneBy({ id });
+
     const fileName = id.toString() + '.md';
     const paths = path.join(process.env.PROBLEM_PATH, fileName);
     if (!existsSync(paths)) throw new NotFoundException('문제 파일을 찾을 수 없습니다.');
     const content = readFileSync(paths).toString();
+
+    const metadataPath = path.join(process.env.TESTCASE_PATH, problem.id.toString(), 'metadata');
+    let metadata;
+    if (!existsSync(metadataPath)) {
+      console.warn('문제에 대한 테스트케이스 메타데이터 파일을 찾을 수 없습니다.');
+      metadata = {
+        input: [],
+        output: null,
+        sampleTestcaseNum: 0,
+      };
+    } else {
+      metadata = JSON.parse(fs.readFileSync(metadataPath).toString());
+    }
+    const data: TestcaseData[] = [];
+    for (let i = 1; i <= metadata.sampleTestcaseNum; i++) {
+      const filename = path.join(
+        process.env.TESTCASE_PATH,
+        problem.id.toString(),
+        'samples',
+        i.toString(),
+      );
+      data.push({
+        input: JSON.parse(fs.readFileSync(`${filename}.in`).toString()),
+        output: JSON.parse(fs.readFileSync(`${filename}.ans`).toString()),
+      });
+    }
+    const testcases: ITestcases = {
+      input: metadata.input,
+      output: metadata.output,
+      data,
+    };
+
     return new CompetitionProblemResponseDto(
       problem.id,
       problem.title,
@@ -178,7 +216,7 @@ export class CompetitionService {
       problem.memoryLimit,
       content,
       problem.solutionCode,
-      [{ temp: '임시' }],
+      testcases,
       problem.createdAt,
     );
   }