shorts-api/app/Controllers/Http/OrdersController.ts

import type { HttpContextContract } from '@ioc:Adonis/Core/HttpContext'
import Order from 'App/Models/Order'
import PaginationService from 'App/Services/PaginationService'
import { schema } from '@ioc:Adonis/Core/Validator'
import { BadRequestException, InternalServerException } from 'App/Exceptions/Common'
import Series from 'App/Models/Series'
import Episode from 'App/Models/Episode'
import UserBalanceService from 'App/Services/UserBalanceService'

export default class OrdersController {
    private paginationService = new PaginationService(Order)
    public async index({ request }: HttpContextContract) {
        return await this.paginationService.paginate(request.all())
    }

    public async store({ request, auth }: HttpContextContract) {
        const user = auth.user!
        const data: any = await request.validate({
            schema: schema.create({
                seriesId: schema.number.optional(),
                episodeId: schema.number.optional()
            })
        })
        if (!data.seriesId && !data.episodeId) {
            throw new BadRequestException('seriesId or episodeId must be provided')
        }

        const userBalance = await UserBalanceService.getBalance(user.id)

        if (data.seriesId) {
            const series = await Series.findOrFail(data.seriesId)
            if (series.price.comparedTo(userBalance.balance) > 0) {
                throw new InternalServerException('not enough balance')
            }
            data.price = series.price
            data.type = 'series'
        } else {
            const episode = await Episode.findOrFail(data.episodeId)
            if (episode.price.comparedTo(userBalance.balance) > 0) {
                throw new InternalServerException('not enough balance')
            }
            data.price = episode.price
            data.type = 'episode'
        }
        data.userId = user.id

        await UserBalanceService.modifiyBalance({
            userId: user.id,
            amount: data.price.negated(),
            type: data.type,
            seriesId: data.seriesId,
            episodeId: data.episodeId
        })

        return await Order.create(data)
    }

    public async show({ params }: HttpContextContract) {
        return await Order.findOrFail(params.id)
    }

    public async update({ response }: HttpContextContract) {
        response.notImplemented()
    }

    public async destroy({ response }: HttpContextContract) {
        response.notImplemented()
    }
}