쿠폰 자동 입력 사이트 작성

완성됐습니다. 전체 구조:

---

## 📁 autoCoupon 프로젝트 구조

### `autoCoupon/back/` (NestJS)
- **[./autoCoupon/back/src/main.ts](./autoCoupon/back/src/main.ts)** — 진입점, CORS 설정, 포트 3000
- **[./autoCoupon/back/src/app.module.ts](./autoCoupon/back/src/app.module.ts)** — TypeORM MySQL 연결 (`kakao` DB)
- **[./autoCoupon/back/src/wos/wos.service.ts](./autoCoupon/back/src/wos/wos.service.ts)** — MD5 sign 생성, 세션(쿠키) 메모리 저장, 쿠폰 순차 입력(1초 딜레이)
- **[./autoCoupon/back/src/wos/wos.controller.ts](./autoCoupon/back/src/wos/wos.controller.ts)** — `POST /api/player`, `/api/captcha`, `/api/redeem`
- **[./autoCoupon/back/src/entities/](./autoCoupon/back/src/entities/)** — `wos_users`, `coupon_logs` 테이블 (TypeORM synchronize: true로 자동 생성)

### `autoCoupon/front/` (Vue 3 + Pinia)
- **[./autoCoupon/front/src/stores/wos.store.ts](./autoCoupon/front/src/stores/wos.store.ts)** — Pinia store (플레이어 조회, 캡차, 쿠폰 제출)
- **[./autoCoupon/front/src/components/UserCard.vue](./autoCoupon/front/src/components/UserCard.vue)** — 닉네임, 용광로 레벨, 아바타 카드
- **[./autoCoupon/front/src/components/CouponInput.vue](./autoCoupon/front/src/components/CouponInput.vue)** — 캡차 + 쿠폰 일괄 입력 (줄바꿈 구분)
- **[./autoCoupon/front/src/components/ResultTable.vue](./autoCoupon/front/src/components/ResultTable.vue)** — 쿠폰별 성공/실패 결과 테이블

---

## 시작 방법

**백엔드:**
```bash
cd autoCoupon/back
cp .env.example .env
npm install
npm run start:dev
```

**프론트엔드:**
```bash
cd autoCoupon/front
npm install
npm run dev
```

> **배포 시** Nginx에서 `/` → Vue `dist/`, `/api` → `localhost:3000` 으로 프록시 설정하면 됩니다.

back/src/wos/wos.controller.ts

@@ -0,0 +1,25 @@
+import { Controller, Post, Body, HttpCode } from '@nestjs/common';
+import { WosService } from './wos.service';
+
+@Controller('api')
+export class WosController {
+  constructor(private readonly wosService: WosService) {}
+
+  @Post('player')
+  @HttpCode(200)
+  async getPlayer(@Body() body: { fid: string }) {
+    return this.wosService.getPlayer(body.fid);
+  }
+
+  @Post('captcha')
+  @HttpCode(200)
+  async getCaptcha(@Body() body: { fid: string }) {
+    return this.wosService.getCaptcha(body.fid);
+  }
+
+  @Post('redeem')
+  @HttpCode(200)
+  async redeem(@Body() body: { fid: string; codes: string[]; captcha: string }) {
+    return this.wosService.redeemMultiple(body.fid, body.codes, body.captcha);
+  }
+}

back/src/wos/wos.module.ts

@@ -0,0 +1,13 @@
+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { WosController } from './wos.controller';
+import { WosService } from './wos.service';
+import { WosUser } from '../entities/wos-user.entity';
+import { CouponLog } from '../entities/coupon-log.entity';
+
+@Module({
+  imports: [TypeOrmModule.forFeature([WosUser, CouponLog])],
+  controllers: [WosController],
+  providers: [WosService],
+})
+export class WosModule {}

back/src/wos/wos.service.ts

@@ -0,0 +1,162 @@
+import { Injectable, HttpException, HttpStatus } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { Repository } from 'typeorm';
+import axios from 'axios';
+import * as crypto from 'crypto';
+import { WosUser } from '../entities/wos-user.entity';
+import { CouponLog } from '../entities/coupon-log.entity';
+
+const SECRET = 'tB87#kPtkxqOS2';
+const WOS_API_BASE = 'https://wos-giftcode-api.centurygame.com/api';
+
+const ERR_MESSAGES: Record<number, string> = {
+  20000: '쿠폰 코드가 존재하지 않습니다.',
+  20001: '이미 사용된 쿠폰입니다.',
+  20002: '만료된 쿠폰입니다.',
+  20003: '캡차 인증에 실패했습니다.',
+  40014: '캡차 세션이 만료되었습니다. 다시 시도해주세요.',
+  40004: '캡차 입력이 올바르지 않습니다.',
+};
+
+@Injectable()
+export class WosService {
+  private sessionStore: Map<string, string> = new Map();
+
+  constructor(
+    @InjectRepository(WosUser)
+    private wosUserRepo: Repository<WosUser>,
+    @InjectRepository(CouponLog)
+    private couponLogRepo: Repository<CouponLog>,
+  ) {}
+
+  private makeSign(fid: string, timestamp: number): string {
+    const raw = `fid=${fid}&time=${timestamp}${SECRET}`;
+    return crypto.createHash('md5').update(raw).digest('hex');
+  }
+
+  async getPlayer(fid: string) {
+    const timestamp = Date.now();
+    const sign = this.makeSign(fid, timestamp);
+
+    const response = await axios.post(
+      `${WOS_API_BASE}/player`,
+      new URLSearchParams({ fid, time: String(timestamp), sign }),
+      { headers: { 'Content-Type': 'application/x-www-form-urlencoded' } },
+    );
+
+    const data = response.data;
+    if (data.code !== 0) {
+      throw new HttpException(
+        ERR_MESSAGES[data.err_code] || `오류가 발생했습니다. (${data.err_code})`,
+        HttpStatus.BAD_REQUEST,
+      );
+    }
+
+    const playerInfo = data.data;
+
+    await this.wosUserRepo.upsert(
+      {
+        fid,
+        nickname: playerInfo.nickname,
+        avatar_url: playerInfo.avatar_image,
+      },
+      ['fid'],
+    );
+
+    return playerInfo;
+  }
+
+  async getCaptcha(fid: string) {
+    const timestamp = Date.now();
+    const sign = this.makeSign(fid, timestamp);
+
+    const response = await axios.post(
+      `${WOS_API_BASE}/captcha`,
+      new URLSearchParams({ fid, time: String(timestamp), sign }),
+      {
+        headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
+        withCredentials: true,
+      },
+    );
+
+    const setCookie = response.headers['set-cookie'];
+    if (setCookie) {
+      const sessionCookie = setCookie.find((c: string) => c.includes('session'));
+      if (sessionCookie) {
+        const sessionValue = sessionCookie.split(';')[0];
+        this.sessionStore.set(fid, sessionValue);
+      }
+    }
+
+    const data = response.data;
+    if (data.code !== 0) {
+      throw new HttpException(
+        ERR_MESSAGES[data.err_code] || `캡차 로드 실패 (${data.err_code})`,
+        HttpStatus.BAD_REQUEST,
+      );
+    }
+
+    return { img: data.data?.img, captcha_id: data.data?.captcha_id };
+  }
+
+  async redeemCoupon(fid: string, couponCode: string, captcha: string) {
+    const timestamp = Date.now();
+    const sign = this.makeSign(fid, timestamp);
+    const sessionCookie = this.sessionStore.get(fid) || '';
+
+    const response = await axios.post(
+      `${WOS_API_BASE}/gift_code`,
+      new URLSearchParams({
+        fid,
+        time: String(timestamp),
+        sign,
+        cdk: couponCode,
+        validate: captcha,
+      }),
+      {
+        headers: {
+          'Content-Type': 'application/x-www-form-urlencoded',
+          Cookie: sessionCookie,
+        },
+      },
+    );
+
+    const data = response.data;
+    const resultMsg =
+      data.code === 0
+        ? '성공'
+        : ERR_MESSAGES[data.err_code] || `실패 (err_code: ${data.err_code})`;
+
+    await this.couponLogRepo.save({
+      fid,
+      coupon_code: couponCode,
+      result_msg: resultMsg,
+    });
+
+    if (data.code !== 0) {
+      throw new HttpException(resultMsg, HttpStatus.BAD_REQUEST);
+    }
+
+    return { message: resultMsg };
+  }
+
+  async redeemMultiple(fid: string, codes: string[], captcha: string) {
+    const results: { code: string; status: string; message: string }[] = [];
+
+    for (const code of codes) {
+      try {
+        await this.redeemCoupon(fid, code.trim(), captcha);
+        results.push({ code, status: 'success', message: '성공' });
+      } catch (err: any) {
+        results.push({
+          code,
+          status: 'error',
+          message: err.message || '실패',
+        });
+      }
+      await new Promise((resolve) => setTimeout(resolve, 1000));
+    }
+
+    return results;
+  }
+}