import { BusinessActivitySelect } from '@/generated/prisma/models'
import { PrismaService } from '@/prisma/prisma.service'
import { Injectable } from '@nestjs/common'
import { ResponseMapper } from 'common/response/response-mapper'

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

  defaultSelect: BusinessActivitySelect = {
    id: true,
    name: true,
    economic_code: true,
    created_at: true,
    guild: {
      select: {
        id: true,
        code: true,
        name: true,
      },
    },
    complexes: {
      select: {
        _count: {
          select: {
            pos_list: true,
          },
        },
      },
    },
    license_activation: {
      select: {
        id: true,
        starts_at: true,
        expires_at: true,
        license: {
          select: {
            accounts_limit: true,
            _count: {
              select: {
                account_allocations: true,
              },
            },
          },
        },
      },
    },
  }

  private readonly prepareBusinessActivityResponse = (businessActivity: any) => {
    const { license_activation, complexes, ...rest } = businessActivity
    const { license, ...license_activation_rest } = license_activation
    const { accounts_limit, _count } = license

    return {
      ...rest,
      license_info: {
        ...license_activation_rest,
        accounts_limit: accounts_limit + _count.account_allocations,
        allocated_account_count: complexes.reduce(
          (acc: number, complex: any) => acc + complex._count.pos_list,
          0,
        ),
      },
    }
  }

  async findAll(consumer_id: string) {
    const businessActivities = await this.prisma.businessActivity.findMany({
      where: {
        consumer_id,
      },
      select: this.defaultSelect,
    })
    return ResponseMapper.list(
      businessActivities.map(this.prepareBusinessActivityResponse),
    )
  }

  async findOne(consumer_id: string, id: string) {
    const businessActivity = await this.prisma.businessActivity.findUniqueOrThrow({
      where: { consumer_id, id },
      select: this.defaultSelect,
    })
    return ResponseMapper.single(this.prepareBusinessActivityResponse(businessActivity))
  }

  async update(consumer_id: string, id: string, data: any) {
    const businessActivity = await this.prisma.businessActivity.update({
      where: { id, consumer_id },
      data,
      select: this.defaultSelect,
    })
    return ResponseMapper.update(this.prepareBusinessActivityResponse(businessActivity))
  }
}