feat: Phase 1-3 全部完成 — 沙盒增强、学情分析、学习路径

backend/src/modules/auth/auth.service.ts

@@ -0,0 +1,91 @@
+import { Injectable, UnauthorizedException } from '@nestjs/common';
+import { JwtService } from '@nestjs/jwt';
+import * as bcrypt from 'bcryptjs';
+import { PrismaService } from '../../prisma/prisma.service';
+
+@Injectable()
+export class AuthService {
+  constructor(
+    private prisma: PrismaService,
+    private jwtService: JwtService,
+  ) {}
+
+  async register(data: { phone?: string; email?: string; password: string; nickname?: string }) {
+    const passwordHash = await bcrypt.hash(data.password, 10);
+    const user = await this.prisma.user.create({
+      data: {
+        phone: data.phone,
+        email: data.email,
+        passwordHash,
+        nickname: data.nickname || data.phone || data.email?.split('@')[0],
+      },
+    });
+    return this.generateTokens(user.id);
+  }
+
+  async login(account: string, password: string) {
+    const user = await this.prisma.user.findFirst({
+      where: {
+        OR: [{ phone: account }, { email: account }],
+        deletedAt: null,
+      },
+    });
+
+    if (!user || !user.passwordHash) {
+      throw new UnauthorizedException('账号或密码错误');
+    }
+
+    const isValid = await bcrypt.compare(password, user.passwordHash);
+    if (!isValid) {
+      throw new UnauthorizedException('账号或密码错误');
+    }
+
+    await this.prisma.user.update({
+      where: { id: user.id },
+      data: { lastLoginAt: new Date() },
+    });
+
+    return this.generateTokens(user.id);
+  }
+
+  async refreshAccessToken(accessToken: string) {
+    try {
+      const payload = this.jwtService.verify(accessToken, { ignoreExpiration: true });
+      const user = await this.prisma.user.findUnique({
+        where: { id: payload.sub, deletedAt: null },
+      });
+      if (!user || user.status !== 'ACTIVE') {
+        throw new UnauthorizedException('用户不可用');
+      }
+      return this.generateTokens(user.id);
+    } catch {
+      throw new UnauthorizedException('Token 无效');
+    }
+  }
+
+  async getProfile(userId: number) {
+    return this.prisma.user.findUnique({
+      where: { id: userId },
+      select: {
+        id: true,
+        phone: true,
+        email: true,
+        nickname: true,
+        avatar: true,
+        status: true,
+        memberPlan: true,
+        memberExpire: true,
+        sandboxDaily: true,
+        createdAt: true,
+      },
+    });
+  }
+
+  private generateTokens(userId: number) {
+    const payload = { sub: userId };
+    return {
+      accessToken: this.jwtService.sign(payload, { expiresIn: '2h' }),
+      refreshToken: this.jwtService.sign(payload, { expiresIn: '7d' }),
+    };
+  }
+}