import { CustomerSelect, CustomerWhereInput } from '@/generated/prisma/models'
import { PrismaService } from '@/prisma/prisma.service'
import { Injectable } from '@nestjs/common'
import { ResponseMapper } from 'common/response/response-mapper'
import {
  UpdateCustomerIndividualDto,
  UpdateCustomerLegalDto,
} from './dto/create-customers.dto'

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

  defaultSelect: CustomerSelect = {
    id: true,
    type: true,
    is_favorite: true,
    created_at: true,
    individual: {
      select: {
        first_name: true,
        last_name: true,
        national_id: true,
        postal_code: true,
        economic_code: true,
      },
    },
    legal: {
      select: {
        company_name: true,
        registration_number: true,
        postal_code: true,
        economic_code: true,
      },
    },
  }

  private defaultWhere(consumer_id: string): CustomerWhereInput {
    return {
      OR: [
        {
          individual: {
            business_activity: {
              consumer_id,
            },
          },
        },
        {
          legal: {
            business_activity: {
              consumer_id,
            },
          },
        },
      ],
    }
  }

  async findAll(consumer_id: string, page = 1, perPage = 10) {
    const [customers, total] = await this.prisma.$transaction(async tx => [
      await tx.customer.findMany({
        where: this.defaultWhere(consumer_id),
        select: this.defaultSelect,
        skip: (page - 1) * perPage,
        take: 10,
      }),
      await tx.customer.count({
        where: this.defaultWhere(consumer_id),
      }),
    ])
    return ResponseMapper.paginate(customers, { total, page, perPage })
  }

  async findOne(consumer_id: string, customer_id: string) {
    const customer = await this.prisma.customer.findUniqueOrThrow({
      where: {
        ...this.defaultWhere(consumer_id),
        id: customer_id,
      },
      select: this.defaultSelect,
    })

    return ResponseMapper.single(customer)
  }

  async updateLegal(
    consumer_id: string,
    customer_id: string,
    data: UpdateCustomerLegalDto,
  ) {
    const customer = await this.prisma.customer.update({
      where: {
        id: customer_id,
        legal: {
          business_activity: {
            consumer_id,
          },
        },
      },
      data: {
        is_favorite: data.is_favorite,
        legal: {
          update: {
            ...data,
          },
        },
      },
    })

    return ResponseMapper.update(customer)
  }

  async updateIndividual(
    consumer_id: string,
    customer_id: string,
    data: UpdateCustomerIndividualDto,
  ) {
    const customer = await this.prisma.customer.update({
      where: {
        id: customer_id,
        individual: {
          business_activity: {
            consumer_id,
          },
        },
      },
      data: {
        is_favorite: data.is_favorite,

        individual: {
          update: {
            ...data,
          },
        },
      },
    })
    return ResponseMapper.update(customer)
  }
}