import { QUERY_CONSTANTS } from '@/common/queryConstants'
import { ResponseMapper } from '@/common/response/response-mapper'
import { PasswordUtil } from '@/common/utils'
import { RedisKeyMaker } from '@/common/utils/redisKeyMaker'
import { ConsumerUpdateInput } from '@/generated/prisma/models'
import { PrismaService } from '@/prisma/prisma.service'
import { RedisService } from '@/redis/redis.service'
import { Injectable } from '@nestjs/common'
import consumer_mappersUtil from '../../common/utils/mappers/consumer_mappers.util'
import { UpdateConsumerInfoDto } from './dto/update-info-request.dto'
import { UpdateConsumerPasswordDto } from './dto/update-password-request.dto'

@Injectable()
export class ConsumerService {
  constructor(
    private readonly prisma: PrismaService,
    private readonly redisService: RedisService,
  ) {}

  private readonly infoCacheTtlSeconds = 300

  async getInfo(consumer_id: string) {
    const cacheKey = RedisKeyMaker.consumerInfo(consumer_id)
    const cached = await this.redisService.getJson<unknown>(cacheKey)
    if (cached) {
      return ResponseMapper.single(cached)
    }

    const consumer = await this.prisma.consumer.findUniqueOrThrow({
      where: {
        id: consumer_id,
      },
      select: {
        id: true,
        status: true,
        ...QUERY_CONSTANTS.CONSUMER.infoSelect,
      },
    })

    const mappedConsumer = consumer_mappersUtil(consumer)
    await this.redisService.setJson(cacheKey, mappedConsumer, this.infoCacheTtlSeconds)
    return ResponseMapper.single(mappedConsumer)
  }

  async updateInfo(consumer_id: string, data: UpdateConsumerInfoDto) {
    const consumerExists = await this.prisma.consumer.findUnique({
      where: {
        id: consumer_id,
      },
      select: {
        type: true,
      },
    })

    let dataForUpdate: ConsumerUpdateInput = {}

    if (consumerExists?.type === 'LEGAL') {
      dataForUpdate = {
        legal: {
          update: {
            name: data.company_name,
            registration_code: data.registration_code,
          },
        },
      }
    } else if (consumerExists?.type === 'INDIVIDUAL') {
      dataForUpdate = {
        individual: {
          update: {
            first_name: data.first_name,
            last_name: data.last_name,
            mobile_number: data.mobile_number,
            national_code: data.national_code,
          },
        },
      }
    }
    const consumer = await this.prisma.consumer.update({
      where: {
        id: consumer_id,
      },
      data: {
        ...dataForUpdate,
      },
    })

    await this.redisService.delete(RedisKeyMaker.consumerInfo(consumer_id))
    const partnerOwner = await this.prisma.consumer.findUnique({
      where: { id: consumer_id },
      select: {
        legal: { select: { partner_id: true } },
        individual: { select: { partner_id: true } },
      },
    })
    const partnerId =
      partnerOwner?.legal?.partner_id || partnerOwner?.individual?.partner_id || null
    if (partnerId) {
      await this.redisService.delete(
        RedisKeyMaker.partnerConsumerInfo(partnerId, consumer_id),
      )
    }

    return ResponseMapper.update(consumer)
  }

  async updatePassword(
    consumer_id: string,
    accountId: string,
    data: UpdateConsumerPasswordDto,
  ) {
    const consumer = await this.prisma.consumerAccount.update({
      where: {
        id: accountId,
        consumer_id,
      },
      data: {
        account: {
          update: {
            password: await PasswordUtil.hash(data.password),
          },
        },
      },
    })

    return ResponseMapper.update(consumer)
  }
}