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import { CommandHandler } from '@nestjs/cqrs'; |
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import { Inject } from '@nestjs/common'; |
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import { GenerateInvoiceCommand } from './GenerateInvoiceCommand'; |
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import { IEventRepository } from 'src/Domain/FairCalendar/Repository/IEventRepository'; |
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import { Invoice } from 'src/Domain/Accounting/Invoice.entity'; |
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import { InvoiceItem } from 'src/Domain/Accounting/InvoiceItem.entity'; |
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import { IInvoiceRepository } from 'src/Domain/Accounting/Repository/IInvoiceRepository'; |
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import { IInvoiceItemRepository } from 'src/Domain/Accounting/Repository/IInvoiceItemRepository'; |
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import { InvoiceIdGenerator } from 'src/Domain/Accounting/Generators/InvoiceIdGenerator'; |
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import { NoBillableEventsFoundException } from 'src/Domain/Accounting/Exception/NoBillableEventsFoundException'; |
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import { IDateUtils } from 'src/Application/IDateUtils'; |
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import { IProjectRepository } from 'src/Domain/Project/Repository/IProjectRepository'; |
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import { ProjectNotFoundException } from 'src/Domain/Project/Exception/ProjectNotFoundException'; |
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import { Project } from 'src/Domain/Project/Project.entity'; |
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import { ICooperativeRepository } from 'src/Domain/Settings/Repository/ICooperativeRepository'; |
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import { CooperativeNotFoundException } from 'src/Domain/Settings/Repository/CooperativeNotFoundException'; |
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import { Cooperative } from 'src/Domain/Settings/Cooperative.entity'; |
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@CommandHandler(GenerateInvoiceCommand) |
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export class GenerateInvoiceCommandHandler { |
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constructor( |
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@Inject('IProjectRepository') |
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private readonly projectRepository: IProjectRepository, |
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@Inject('ICooperativeRepository') |
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private readonly cooperativeRepository: ICooperativeRepository, |
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@Inject('IEventRepository') |
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private readonly eventRepository: IEventRepository, |
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@Inject('IInvoiceRepository') |
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private readonly invoiceRepository: IInvoiceRepository, |
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@Inject('IInvoiceItemRepository') |
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private readonly invoiceItemRepository: IInvoiceItemRepository, |
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@Inject('IDateUtils') |
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private readonly dateUtils: IDateUtils, |
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private readonly invoiceIdGenerator: InvoiceIdGenerator |
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) {} |
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public async execute(command: GenerateInvoiceCommand): Promise<string> { |
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const { projectId, status, user, expireInDays } = command; |
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const cooperative = await this.cooperativeRepository.find(); |
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if (!cooperative) { |
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throw new CooperativeNotFoundException(); |
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} |
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const project = await this.projectRepository.findOneById(projectId); |
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if (!project) { |
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throw new ProjectNotFoundException(); |
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} |
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const currentDate = this.dateUtils.getCurrentDate(); |
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const [invoiceId, events] = await Promise.all([ |
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this.invoiceIdGenerator.generate(), |
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this.eventRepository.findBillableEventsByMonthAndProject( |
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currentDate, |
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project |
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) |
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]); |
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if (0 === events.length) { |
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throw new NoBillableEventsFoundException(); |
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} |
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const expiryDate = this.dateUtils.addDaysToDate(currentDate, expireInDays); |
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const invoiceItems: InvoiceItem[] = []; |
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const invoice = new Invoice( |
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invoiceId, |
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status, |
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expiryDate.toISOString(), |
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user, |
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project |
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); |
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for (const event of events) { |
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invoiceItems.push(this.buildInvoiceItem(invoice, cooperative, event)); |
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} |
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const savedInvoice = await this.invoiceRepository.save(invoice); |
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await this.invoiceItemRepository.save(invoiceItems); |
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return savedInvoice.getId(); |
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} |
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private buildInvoiceItem( |
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invoice: Invoice, |
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cooperative: Cooperative, |
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{ time_spent, billable, task_name, first_name, last_name, daily_rate } |
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): InvoiceItem { |
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const quantity = |
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Math.round((time_spent / cooperative.getDayDuration()) * 100) / 100; |
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return new InvoiceItem( |
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invoice, |
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`${task_name} - ${first_name} ${last_name}`, |
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Math.round(quantity * 100), |
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daily_rate ? daily_rate : 0, |
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billable ? 0 : 10000 |
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); |
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} |
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} |
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fairnesscoop /
permacoop
