books/backend/Books.Api/Commands/Attachments/AttachmentCommands.cs

using Books.Api.Domain.Attachments;
using EventFlow.Commands;

namespace Books.Api.Commands.Attachments;

/// <summary>
/// Command to upload an attachment (bilag).
/// Required by Bogføringsloven § 6 for document retention.
/// </summary>
public class UploadAttachmentCommand(
    AttachmentId aggregateId,
    string companyId,
    string fileName,
    string originalFileName,
    string contentType,
    long fileSize,
    string storagePath,
    string uploadedBy,
    string? draftId = null,
    string? transactionId = null)
    : Command<AttachmentAggregate, AttachmentId>(aggregateId)
{
    public string CompanyId { get; } = companyId;
    public string FileName { get; } = fileName;
    public string OriginalFileName { get; } = originalFileName;
    public string ContentType { get; } = contentType;
    public long FileSize { get; } = fileSize;
    public string StoragePath { get; } = storagePath;
    public string UploadedBy { get; } = uploadedBy;
    public string? DraftId { get; } = draftId;
    public string? TransactionId { get; } = transactionId;
}

/// <summary>
/// Command to link an attachment to a posted transaction.
/// </summary>
public class LinkAttachmentToTransactionCommand(
    AttachmentId aggregateId,
    string transactionId)
    : Command<AttachmentAggregate, AttachmentId>(aggregateId)
{
    public string TransactionId { get; } = transactionId;
}

/// <summary>
/// Command to delete an attachment.
/// Note: Per Bogføringsloven § 6, this should only be used after
/// the 5-year retention period.
/// </summary>
public class DeleteAttachmentCommand(
    AttachmentId aggregateId,
    string deletedBy,
    string reason)
    : Command<AttachmentAggregate, AttachmentId>(aggregateId)
{
    public string DeletedBy { get; } = deletedBy;
    public string Reason { get; } = reason;
}