49 lines
1.6 KiB
C#
49 lines
1.6 KiB
C#
using MediatR;
|
|
using mws.backend.dotnet.application.Common;
|
|
using mws.backend.dotnet.application.Permissions;
|
|
|
|
namespace mws.backend.dotnet.application.Documents;
|
|
|
|
public record DeleteDocumentCommand(Guid UserId, Guid DocumentId) : IRequest;
|
|
|
|
public class DeleteDocumentHandler(IUnitOfWork uow, IDocumentContentStore contentStore)
|
|
: IRequestHandler<DeleteDocumentCommand>
|
|
{
|
|
public async Task Handle(DeleteDocumentCommand command, CancellationToken ct)
|
|
{
|
|
var doc = await DocumentAccess.GetDocumentForUserAsync(uow, command.UserId, command.DocumentId, ct);
|
|
await DocumentAccess.EnsureDocumentPermissionAsync(uow, command.UserId, doc.ProjectId, PermissionAction.Delete, ct);
|
|
|
|
var keys = new List<string>();
|
|
await CollectDescendants(uow, command.DocumentId, keys, ct);
|
|
if (!string.IsNullOrEmpty(doc.StorageKey))
|
|
{
|
|
keys.Add(doc.StorageKey);
|
|
}
|
|
|
|
await DocumentAccess.DeleteDescendantsAsync(uow, command.DocumentId, ct);
|
|
uow.Documents.Remove(doc);
|
|
await uow.SaveChangesAsync(ct);
|
|
|
|
foreach (var key in keys)
|
|
{
|
|
await contentStore.DeleteAsync(key, ct);
|
|
}
|
|
}
|
|
|
|
private static async Task CollectDescendants(
|
|
IUnitOfWork uow, Guid parentId,
|
|
List<string> keys, CancellationToken ct)
|
|
{
|
|
var children = await uow.Documents.GetChildrenAsync(parentId, ct);
|
|
foreach (var child in children)
|
|
{
|
|
if (!string.IsNullOrEmpty(child.StorageKey))
|
|
{
|
|
keys.Add(child.StorageKey);
|
|
}
|
|
await CollectDescendants(uow, child.Id, keys, ct);
|
|
}
|
|
}
|
|
}
|