first commit

backend/src/app.controller.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { AppController } from './app.controller';
+import { AppService } from './app.service';
+
+describe('AppController', () => {
+  let appController: AppController;
+
+  beforeEach(async () => {
+    const app: TestingModule = await Test.createTestingModule({
+      controllers: [AppController],
+      providers: [AppService],
+    }).compile();
+
+    appController = app.get<AppController>(AppController);
+  });
+
+  describe('root', () => {
+    it('should return "Hello World!"', () => {
+      expect(appController.getHello()).toBe('Hello World!');
+    });
+  });
+});

backend/src/app.controller.ts

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+import { Controller, Get } from '@nestjs/common';
+import { AppService } from './app.service';
+
+@Controller()
+export class AppController {
+  constructor(private readonly appService: AppService) {}
+
+  @Get()
+  getHello(): string {
+    return this.appService.getHello();
+  }
+}

backend/src/app.module.ts

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+import { Module } from '@nestjs/common';
+import { AppController } from './app.controller';
+import { AppService } from './app.service';
+import { LeadsModule } from './leads/leads.module';
+
+@Module({
+  imports: [LeadsModule],
+  controllers: [AppController],
+  providers: [AppService],
+})
+export class AppModule {}

backend/src/app.service.ts

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+import { Injectable } from '@nestjs/common';
+
+@Injectable()
+export class AppService {
+  getHello(): string {
+    return 'Hello World!';
+  }
+}

backend/src/leads/dto/feedback.dto.ts

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+import { IsString, IsNotEmpty } from 'class-validator';
+
+export class CreateFeedbackDto {
+    @IsString()
+    @IsNotEmpty()
+    status: string;
+
+    @IsString()
+    reason?: string;
+}

backend/src/leads/leads.controller.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { LeadsController } from './leads.controller';
+
+describe('LeadsController', () => {
+  let controller: LeadsController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [LeadsController],
+    }).compile();
+
+    controller = module.get<LeadsController>(LeadsController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});

backend/src/leads/leads.controller.ts

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+import { CreateFeedbackDto } from './dto/feedback.dto';
+import { Controller, Post, Body, Param, Get } from '@nestjs/common';
+import { LeadsService } from './leads.service';
+
+@Controller('leads')
+export class LeadsController {
+    constructor(private readonly leadsService: LeadsService) { }
+
+    @Post(':id/feedback')
+    async updateLeadFeedback(
+        @Param('id') id: string,
+        @Body() feedbackDto: CreateFeedbackDto
+    ) {
+        return this.leadsService.saveFeedback(id, feedbackDto);
+    }
+
+    @Get()
+    findAll() {
+        return this.leadsService.getAllLeads();
+    }
+}

backend/src/leads/leads.module.ts

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+import { Module } from '@nestjs/common';
+import { LeadsController } from './leads.controller';
+import { LeadsService } from './leads.service';
+
+@Module({
+  controllers: [LeadsController],
+  providers: [LeadsService]
+})
+export class LeadsModule {}

backend/src/leads/leads.service.spec.ts

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+import { Test, TestingModule } from '@nestjs/testing';
+import { LeadsService } from './leads.service';
+
+describe('LeadsService', () => {
+  let service: LeadsService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [LeadsService],
+    }).compile();
+
+    service = module.get<LeadsService>(LeadsService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

backend/src/leads/leads.service.ts

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+import { Injectable } from '@nestjs/common';
+import axios from 'axios';
+
+@Injectable()
+export class LeadsService {
+    async saveFeedback(leadId: string, feedback: { status: string; reason?: string }) {
+        console.log(`Received ${feedback.status} for lead ${leadId}: ${feedback.reason}`);
+
+        // Future: Logic to call Python backend goes here
+        return await this.sendFeedbackToPython(leadId, feedback);
+    }
+
+    private readonly PYTHON_API = 'http://localhost:8000';
+
+    async getAllLeads() {
+        const response = await axios.get(`${this.PYTHON_API}/leads`);
+        return response.data;
+    }
+
+    async sendFeedbackToPython(id: string, data: any) {
+        try {
+            const response = await axios.post(
+                `${this.PYTHON_API}/leads/${id}/feedback`,
+                data,
+                {
+                    headers: {
+                        'Content-Type': 'application/json',
+                    },
+                }
+            );
+            return response.data;
+        } catch (error) {
+            console.error("Axios Error Details:", error.response?.data);
+            throw error;
+        }
+    }
+}
+

backend/src/main.ts

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+import { NestFactory } from '@nestjs/core';
+import { AppModule } from './app.module';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+  app.enableCors();
+  await app.listen(process.env.PORT ?? 3000);
+}
+bootstrap();