54 lines
2.0 KiB
C#
54 lines
2.0 KiB
C#
using Domain.AggregateModel.AppAggregate;
|
|
using Domain.AggregateModel.LinkAggregate;
|
|
using Domain.Exceptions;
|
|
using MediatR;
|
|
using Microsoft.Extensions.Logging;
|
|
using QRCodeService.Services;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace QRCodeService.Application.Commands
|
|
{
|
|
public class CreateLinkCommandHandler : IRequestHandler<CreateLinkCommand, Link>
|
|
{
|
|
|
|
readonly ILogger<CreateLinkCommandHandler> logger;
|
|
readonly IAppRepository appRepository;
|
|
private readonly IShortCodeService shortCodeService;
|
|
readonly ILinkRepository linkRepository;
|
|
|
|
public CreateLinkCommandHandler(IShortCodeService shortCodeService,ILinkRepository linkRepository, IAppRepository appRepository, ILogger<CreateLinkCommandHandler> logger)
|
|
{
|
|
this.shortCodeService = shortCodeService;
|
|
this.linkRepository = linkRepository;
|
|
this.appRepository = appRepository;
|
|
this.logger = logger;
|
|
}
|
|
|
|
async Task<Link> IRequestHandler<CreateLinkCommand, Link>.Handle(CreateLinkCommand request, CancellationToken cancellationToken)
|
|
{
|
|
var app = await appRepository.GetAsync(request.AppId);
|
|
if (app == null)
|
|
{
|
|
throw new DomainException("app not found");
|
|
}
|
|
var fullUrl = new Uri(new Uri(app.BaseUrl), request.SuffixUrl).ToString();
|
|
var shortCode = await shortCodeService.GenShortCode(fullUrl);
|
|
var dbLink = await linkRepository.GetAsync(shortCode);
|
|
if (dbLink != null)
|
|
{
|
|
logger.LogDebug("use exist link");
|
|
return dbLink;
|
|
}
|
|
var link = new Link(app.BaseUrl, request.SuffixUrl,fullUrl, request.AppId, shortCode);
|
|
link = linkRepository.Add(link);
|
|
await linkRepository.UnitOfWork.SaveEntitiesAsync();
|
|
return link;
|
|
}
|
|
}
|
|
}
|