feat: admin billing API — query DeepSeek + SiliconFlow balances

src/app.module.ts

@@ -15,6 +15,7 @@ import { AuthModule } from './modules/auth/auth.module';
 import { AdminAuthModule } from './modules/admin-auth/admin-auth.module';
 import { AdminDashboardModule } from './modules/admin-dashboard/admin-dashboard.module';
 import { AdminUsersModule } from './modules/admin-users/admin-users.module';
+import { AdminBillingModule } from './modules/admin-billing/admin-billing.module';
 import { AdminServersModule } from './modules/admin-servers/admin-servers.module';
 import { AdminConversationModule } from './modules/admin-conversation/admin-conversation.module';
 import { AdminAiChatModule } from './modules/admin-ai-chat/admin-ai-chat.module';
@@ -90,6 +91,7 @@ import appleConfig from './config/apple.config';
     AdminAuthModule,
     AdminDashboardModule,
     AdminUsersModule,
+    AdminBillingModule,
     AdminServersModule,
     AdminConversationModule,
     AdminAiChatModule,

src/modules/admin-billing/admin-billing.controller.ts

@@ -0,0 +1,22 @@
+import { Controller, Get, UseGuards } from '@nestjs/common';
+import { ApiTags, ApiBearerAuth, ApiOperation } from '@nestjs/swagger';
+import { AdminBillingService } from './admin-billing.service';
+import { AdminAuthGuard } from '../../common/guards/admin-auth.guard';
+import { AdminRolesGuard } from '../../common/guards/admin-roles.guard';
+import { AdminRoles } from '../../common/decorators/admin-roles.decorator';
+import type { AdminRole } from '../../common/types/admin-role.enum';
+
+@ApiTags('admin-billing')
+@Controller('admin-api/billing')
+@UseGuards(AdminAuthGuard, AdminRolesGuard)
+@ApiBearerAuth()
+export class AdminBillingController {
+  constructor(private readonly billingService: AdminBillingService) {}
+
+  @Get()
+  @AdminRoles('SUPER_ADMIN' as AdminRole)
+  @ApiOperation({ summary: 'API 用量与费用（仅超级管理员）' })
+  async getBilling() {
+    return this.billingService.getAllBilling();
+  }
+}

src/modules/admin-billing/admin-billing.module.ts

@@ -0,0 +1,11 @@
+import { Module } from '@nestjs/common';
+import { AdminBillingController } from './admin-billing.controller';
+import { AdminBillingService } from './admin-billing.service';
+import { AdminAuthGuard } from '../../common/guards/admin-auth.guard';
+import { AdminRolesGuard } from '../../common/guards/admin-roles.guard';
+
+@Module({
+  controllers: [AdminBillingController],
+  providers: [AdminBillingService, AdminAuthGuard, AdminRolesGuard],
+})
+export class AdminBillingModule {}

src/modules/admin-billing/admin-billing.service.ts

@@ -0,0 +1,98 @@
+import { Injectable, Logger } from '@nestjs/common';
+
+export interface BillingInfo {
+  name: string;
+  model: string;
+  balance: string;
+  currency: string;
+  status: 'ok' | 'unknown';
+  consoleUrl: string;
+  note: string;
+}
+
+@Injectable()
+export class AdminBillingService {
+  private readonly logger = new Logger(AdminBillingService.name);
+
+  async getAllBilling(): Promise<{ providers: BillingInfo[] }> {
+    const [deepseek, siliconflow] = await Promise.all([
+      this.getDeepSeek(),
+      this.getSiliconFlow(),
+    ]);
+
+    return {
+      providers: [
+        deepseek,
+        siliconflow,
+        this.getMiniMax(),
+        this.getBaiduOcr(),
+      ],
+    };
+  }
+
+  private async getDeepSeek(): Promise<BillingInfo> {
+    try {
+      const resp = await fetch('https://api.deepseek.com/user/balance', {
+        headers: { Authorization: 'Bearer sk-ddddea4986d843be978ced9e82988fa0' },
+      });
+      const data = await resp.json();
+      const bal = data?.balance_infos?.[0]?.total_balance;
+      return {
+        name: 'DeepSeek',
+        model: 'deepseek-v4-flash / deepseek-chat',
+        balance: bal ? `¥${bal}` : '—',
+        currency: 'CNY',
+        status: 'ok',
+        consoleUrl: 'https://platform.deepseek.com',
+        note: '充值余额',
+      };
+    } catch {
+      return { name: 'DeepSeek', model: 'v4-flash', balance: '—', currency: 'CNY', status: 'unknown', consoleUrl: 'https://platform.deepseek.com', note: '查询失败' };
+    }
+  }
+
+  private async getSiliconFlow(): Promise<BillingInfo> {
+    try {
+      const resp = await fetch('https://api.siliconflow.cn/v1/user/info', {
+        headers: { Authorization: 'Bearer sk-jdtqzgrlneklatdmymscrnvljvzlkkxcrzylznufpgggswjz' },
+      });
+      const data = await resp.json();
+      const bal = data?.data?.totalBalance;
+      return {
+        name: '硅基流动',
+        model: 'BGE-M3 / BGE-Reranker',
+        balance: bal ? `¥${bal}` : '—',
+        currency: 'CNY',
+        status: 'ok',
+        consoleUrl: 'https://cloud.siliconflow.cn',
+        note: '充值 + 赠送余额',
+      };
+    } catch {
+      return { name: '硅基流动', model: 'Embedding/Rerank', balance: '—', currency: 'CNY', status: 'unknown', consoleUrl: 'https://cloud.siliconflow.cn', note: '查询失败' };
+    }
+  }
+
+  private getMiniMax(): BillingInfo {
+    return {
+      name: 'MiniMax',
+      model: 'MiniMax 2.7',
+      balance: '点数制',
+      currency: 'points',
+      status: 'unknown',
+      consoleUrl: 'https://platform.minimaxi.com',
+      note: '按点数计费，需登录控制台查看',
+    };
+  }
+
+  private getBaiduOcr(): BillingInfo {
+    return {
+      name: '百度 OCR',
+      model: '通用文字识别',
+      balance: '次数制',
+      currency: 'calls',
+      status: 'unknown',
+      consoleUrl: 'https://console.bce.baidu.com',
+      note: '按调用次数计费，需登录控制台查看',
+    };
+  }
+}