@using Blazored.Modal
@using Blazored.Modal.Services
@using Domain.Dtos.Stock
@inject IStockScanService StockScanService

@inherits LayoutComponentBase

<div class="modal-header bg-primary text-white">
    <h5 class="modal-title">Escaneo de producto</h5>
    <button type="button" class="btn-close" @onclick="Cancel"></button>
</div>

<div class="modal-body">
    <div class="mb-3">
        <label for="scan" class="form-label">Escanear o ingresar código</label>
@*         <InputText id="scan"
                   class="form-control"
                   @bind-Value="ScanInput" /> *@
        <input @bind="ScanInput"
               @bind:event="oninput"
               class="form-control form-control-sm"
               placeholder="Scannear..."
               style="width: 250px;" />
        @* <button class="btn btn-secondary mt-2" @onclick="HandleScan">Buscar</button> *@
    </div>

    @if (!string.IsNullOrWhiteSpace(ErrorMessage))
    {
        <div class="alert alert-danger">@ErrorMessage</div>
    }

    @if (ScanResults.Any())
    {
        <table class="table table-sm table-bordered">
            <thead class="table-light">
                <tr>
                    <th>Producto</th>
                    <th>Lote</th>
                    <th>Vencimiento</th>
                    <th>Disponible</th>
                    <th>Cantidad a usar</th>
                </tr>
            </thead>
            <tbody>
                @foreach (var item in ScanResults)
                {
                    <tr>
                        <td>@item.ProductName</td>
                        <td>@item.Batch</td>
                        <td>@item.Expiration?.ToShortDateString()</td>
                        <td>@item.Quantity</td>
                        <td>
                            <InputNumber @bind-Value="item.Quantity"
                                         class="form-control form-control-sm"
                                         min="0" />
                        </td>
                    </tr>
                }
            </tbody>
        </table>
    }
</div>

<div class="modal-footer">
    <button class="btn btn-secondary" @onclick="Cancel">Cancelar</button>
    <button class="btn btn-primary" @onclick="ConfirmSelection" disabled="@(!ScanResults.Any(r => r.Quantity > 0))">Agregar</button>
</div>

@code {
    [CascadingParameter] BlazoredModalInstance ModalInstance { get; set; }

    [Parameter] public int? LocationId { get; set; }
    private string SearchAddress { get; set; } = string.Empty;

    private string ScanInput { get; set; } = string.Empty;
    private string ErrorMessage { get; set; } = string.Empty;

    private List<StockItemSelectionDto> ScanResults { get; set; } = new();

    private async Task HandleScan()
    {
        ErrorMessage = string.Empty;
        ScanResults.Clear();

        if (string.IsNullOrWhiteSpace(ScanInput))
        {
            ErrorMessage = "Ingrese un código válido.";
            return;
        }

        if (LocationId is null)
        {
            ErrorMessage = "Falta el depósito para escanear correctamente.";
            return;
        }

        try
        {
            var result = await StockScanService.ParseAndMatchAsync(ScanInput, LocationId.Value);

            if (result is not null)
            {
                ScanResults.Add(result);
            }
            else
            {
                ErrorMessage = "No se encontró stock coincidente.";
            }
        }
        catch (Exception ex)
        {
            ErrorMessage = $"Error: {ex.Message}";
        }
    }

    private void Cancel() => ModalInstance.CancelAsync();

    private void ConfirmSelection()
    {
        var selected = ScanResults.Where(r => r.Quantity > 0).ToList();
        ModalInstance.CloseAsync(ModalResult.Ok(selected));
    }
}