import { Injectable, NotFoundException } from '@nestjs/common';
import { PrismaService } from '../prisma/prisma.service';

@Injectable()
export class PetsService {
  constructor(private prisma: PrismaService) {}

  async getPets(query: any) {
    const { page = 1, limit = 10, search = '' } = query;
    const skip = (Number(page) - 1) * Number(limit);

    const where = search
      ? { name: { contains: search, mode: 'insensitive' as any } }
      : {};

    const [data, total] = await Promise.all([
      this.prisma.pet.findMany({
        where,
        skip,
        take: Number(limit),
        orderBy: { createdAt: 'desc' },
        include: {
          user: {
            select: {
              firstName: true,
              lastName: true,
              email: true,
              mobile: true,
            },
          },
        },
      }),
      this.prisma.pet.count({ where }),
    ]);

    return {
      data,
      meta: {
        total,
        page: Number(page),
        limit: Number(limit),
        lastPage: Math.ceil(total / Number(limit)),
      },
    };
  }

  async deletePet(id: string) {
    const pet = await this.prisma.pet.findUnique({ where: { id } });
    if (!pet) throw new NotFoundException('Pet not found');
    return this.prisma.pet.delete({ where: { id } });
  }
}