company detail api and frontend

apps/edr-freight-api/src/modules/customers2/customers.service.ts

@@ -0,0 +1,61 @@
+import {
+  ConflictException,
+  Injectable,
+  NotFoundException,
+} from "@nestjs/common";
+
+import { CustomersRepository } from "./customers.repository";
+import { CreateCustomerDto } from "./dto/create-customer.dto";
+import { UpdateCustomerDto } from "./dto/update-customer.dto";
+import { Customer } from "./entities/customer.entity";
+
+@Injectable()
+export class CustomersService {
+  constructor(private readonly customersRepository: CustomersRepository) {}
+
+  async create(dto: CreateCustomerDto): Promise<Customer> {
+    const existing = await this.customersRepository.findByEmail(dto.email);
+    if (existing) {
+      throw new ConflictException(
+        `Customer with email "${dto.email}" already exists`,
+      );
+    }
+    return this.customersRepository.create(dto);
+  }
+
+  findAll(): Promise<Customer[]> {
+    return this.customersRepository.findAll({ order: { name: "ASC" } });
+  }
+
+  async findById(id: string): Promise<Customer> {
+    const customer = await this.customersRepository.findById(id);
+    if (!customer) {
+      throw new NotFoundException(`Customer ${id} not found`);
+    }
+    return customer;
+  }
+
+  async update(id: string, dto: UpdateCustomerDto): Promise<Customer> {
+    await this.findById(id);
+
+    if (dto.email) {
+      const conflict = await this.customersRepository.findByEmail(dto.email);
+      if (conflict && conflict.id !== id) {
+        throw new ConflictException(
+          `Customer with email "${dto.email}" already exists`,
+        );
+      }
+    }
+
+    const updated = await this.customersRepository.update(id, dto);
+    if (!updated) {
+      throw new NotFoundException(`Customer ${id} not found`);
+    }
+    return updated;
+  }
+
+  async remove(id: string): Promise<void> {
+    await this.findById(id);
+    await this.customersRepository.softDelete(id);
+  }
+}