namespace Distribution.Features.Grn;

/// <summary>BatchNumber is null for an expiry-only lot (TracksExpiryDate without TracksBatches).</summary>
public record GrnBatchLineRequest(string? BatchNumber, DateTime? ExpiryDate, int Quantity);

public record GrnItemRequest(
    // Set for a PO-based receipt; null for a direct receipt (ItemId is used instead).
    Guid? PurchaseOrderItemId,
    int AcceptedQuantity,
    int RejectedQuantity,
    // Populated only when the item has TracksBatches and/or TracksExpiryDate set.
    List<GrnBatchLineRequest>? Batches = null,
    // Populated only when the item has TracksSerialNumbers set — must contain exactly AcceptedQuantity entries.
    List<string>? SerialNumbers = null,
    // Set for a direct receipt line (no purchase order).
    Guid? ItemId = null);

public record CreateGrnRequest(
    Guid WarehouseId,
    List<GrnItemRequest> Items,
    // TEMPORARY: required while auth doesn't resolve a logged-in user server-side — see testbug.md #28.
    Guid? ReceivedByUserId = null);

public record CreateFlatGrnRequest(
    Guid PurchaseOrderId,
    Guid WarehouseId,
    List<GrnItemRequest> Items,
    // TEMPORARY: required while auth doesn't resolve a logged-in user server-side — see testbug.md #28.
    Guid? ReceivedByUserId = null);

/// <summary>A goods receipt with no purchase order. SupplierId is optional.</summary>
public record CreateDirectGrnRequest(
    Guid WarehouseId,
    List<GrnItemRequest> Items,
    Guid? SupplierId = null,
    // TEMPORARY: required while auth doesn't resolve a logged-in user server-side — see testbug.md #28.
    Guid? ReceivedByUserId = null);

public record GrnBatchLineResponse(string? BatchNumber, DateTime? ExpiryDate, int Quantity);

public record GrnItemResponse(
    Guid Id,
    Guid? PurchaseOrderItemId,
    Guid ItemId,
    string Sku,
    string ItemName,
    int AcceptedQuantity,
    int RejectedQuantity,
    List<GrnBatchLineResponse> Batches,
    List<string> SerialNumbers);

public record GrnResponse(
    Guid Id,
    Guid? PurchaseOrderId,
    Guid ReceivedByUserId,
    Guid WarehouseId,
    string WarehouseName,
    Guid? SupplierId,
    string? SupplierName,
    DateTime ReceivedAt,
    DateTime CreatedAt,
    List<GrnItemResponse> Items);