creates application

backend/src/services/client.service.ts

@@ -0,0 +1,53 @@
+import { prisma } from '../prisma/client';
+import type { CreateClientInput, UpdateClientInput } from '../types';
+
+export class ClientService {
+  async findAll(userId: string) {
+    return prisma.client.findMany({
+      where: { userId },
+      orderBy: { name: 'asc' },
+    });
+  }
+
+  async findById(id: string, userId: string) {
+    return prisma.client.findFirst({
+      where: { id, userId },
+    });
+  }
+
+  async create(userId: string, data: CreateClientInput) {
+    return prisma.client.create({
+      data: {
+        ...data,
+        userId,
+      },
+    });
+  }
+
+  async update(id: string, userId: string, data: UpdateClientInput) {
+    const client = await this.findById(id, userId);
+    if (!client) {
+      const error = new Error('Client not found') as Error & { statusCode: number };
+      error.statusCode = 404;
+      throw error;
+    }
+
+    return prisma.client.update({
+      where: { id },
+      data,
+    });
+  }
+
+  async delete(id: string, userId: string) {
+    const client = await this.findById(id, userId);
+    if (!client) {
+      const error = new Error('Client not found') as Error & { statusCode: number };
+      error.statusCode = 404;
+      throw error;
+    }
+
+    await prisma.client.delete({
+      where: { id },
+    });
+  }
+}