@page "/Warehouse/PackList/{WzHeader:guid}"
@using OrdersManagement.Models
@using Syncfusion.Blazor.Cards
@using Syncfusion.Blazor.Grids
@using SytelineSaAppEfDataModel.Dtos
@using Syncfusion.Blazor.Navigations
@using Syncfusion.Blazor.Popups
@using Syncfusion.Blazor.Inputs

@inject WarehouseService WarehouseService

<div class="h-100 d-flex justify-content-center align-items-start">
    <SfCard CssClass="shadow" style="width: 100%; max-width: 1200px;">
        <CardHeader>
            <h3 class="text-primary">Packing List</h3>
        </CardHeader>
        <CardContent>
            <SfCard CssClass="shadow" style="width: 100%; max-width: 1200px;">
                <CardContent>
                    <label for="textBox" class="form-label">Adresy Email do Wysyłki raportu:</label>
                    <SfTextBox ID="textBox" Placeholder="Wprowadź adresy..." @bind-Value="@EmailAddresses"
                               CssClass="e-outline"/>
                </CardContent>
            </SfCard>
            <SfCard>
                <CardContent>
                    <label for="textBox" class="form-label">Wprowadź numer palety:</label>
                    <SfTextBox ID="palletNumber" Type="InputType.Number" @bind-Value="@PalletNumber"
                               CssClass="e-outline"/>
                    <label for="textBox" class="form-label">Zeskanowana wartość:</label>
                    <SfTextBox ID="scannedValue" ValueChange="ScanValue" @bind-Value="ScannedValue"
                               CssClass="e-outline" @ref="_scanner" />
                    <label for="textBox" class="form-label">Zeskanowane wartości:</label>
                    <SfTextBox ID="scannedText" Multiline="true" @bind-Value="@ScannedValues" Readonly="true"
                               CssClass="e-outline"/>
                </CardContent>
            </SfCard>
            <SfGrid @ref="_grid"
                    AllowFiltering="true"
                    AllowPaging="true"
                    AllowSorting="true"
                    AllowSelection="true"
                    TValue="WzRowMeyleDto"
                    DataSource="@WzRowsMeyle"
                    EnableAdaptiveUI="true">
                <SfToolbar>
                    <ToolbarItems>
                        <ToolbarItem Type="ItemType.Button" Text="Zapisz zmiany" Id="SaveButton"
                                     PrefixIcon="e-icons e-save" OnClick="SaveChanges"/>
                        <ToolbarItem Type="ItemType.Button" Id="Generuj XLS i Wyślij" PrefixIcon="e-icons e-export-xls"
                                     Text="Generuj XLS i Wyślij" OnClick="ExportXls"/>
                    </ToolbarItems>
                </SfToolbar>
                <GridColumns>
                    <GridColumn Field=@nameof(WzRowMeyleDto.ID) IsPrimaryKey="true" Visible="false" AllowEditing="false"
                                TextAlign="TextAlign.Center" HeaderText="ID" Width="70"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.OrderNumber) AllowEditing="false"
                                TextAlign="TextAlign.Center" HeaderText="Numer Zamówienia Meyle"
                                Width="70"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.FaIndex) AllowEditing="false"
                                TextAlign="TextAlign.Center" HeaderText="Numer Indeksu FA" Width="100"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.ItemNumber) AllowEditing="false"
                                TextAlign="TextAlign.Center" HeaderText="Numer Indeksu Meyle" Width="100"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.Quantity) AllowEditing="false" TextAlign="TextAlign.Center"
                                HeaderText="Ilość w Dostawie" Width="80"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.PalletNumber) AllowEditing="true"
                                TextAlign="TextAlign.Center" HeaderText="Nr Palety" Width="100"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.WzNumber) AllowEditing="false" TextAlign="TextAlign.Center"
                                HeaderText="Nr WZ" Width="100"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.PartNumberSl) AllowEditing="true" TextAlign="TextAlign.Center"
                                HeaderText="Nr Partii SL" Width="80"></GridColumn>
                    <GridColumn Field=@nameof(WzRowMeyleDto.PartNumber) AllowEditing="true" TextAlign="TextAlign.Center"
                                HeaderText="Nr Partii Meyle" Width="80"></GridColumn>
                </GridColumns>
                <GridEditSettings AllowDeleting="false"
                                  AllowAdding="false"
                                  AllowEditing="true"
                                  AllowNextRowEdit="true"
                                  AllowEditOnDblClick="true"
                                  ShowConfirmDialog="false"
                                  Mode="EditMode.Batch">
                </GridEditSettings>
                <GridFilterSettings Type="FilterType.Excel"/>
                <GridPageSettings PageSize="10"/>
                <GridSelectionSettings Mode="SelectionMode.Row" Type="SelectionType.Single"/>
                <GridEvents OnBatchSave="OnBatchSave" TValue="WzRowMeyleDto"></GridEvents>
            </SfGrid>
        </CardContent>

        <SfDialog Width="500px" Title="Informacja" IsModal="true" @bind-Visible="Visibility" AllowPrerender="true">
            <DialogTemplates>
                <Content>
                    @if (_isValid)
                    {
                        <p>Packing List został wygenerowany i wysłany!</p>
                    }
                    else if (string.IsNullOrWhiteSpace(EmailAddresses))
                    {
                        <p>Błąd: Proszę wprowadzić przynajmniej jeden <b>ADRES EMAIL</b> do wysyłki raportu!</p>
                    }
                    else if (!_isValid)
                    {
                        <p>Błąd: Nie Wszystkie linie mają wypełniony <b>NUMER PALETY</b>.<br/>Packing List nie zostanie
                            wygenerowany!</p>
                    }
                </Content>
            </DialogTemplates>
            <DialogButtons>
                <DialogButton Content="OK" IsPrimary="true" OnClick="@HideModal"/>
            </DialogButtons>
        </SfDialog>

        <CardFooter>
            <small class="text-muted">FA Krosno Manager © @(DateTime.Now.Year)</small>
        </CardFooter>
    </SfCard>
</div>

@code {
    [Parameter] public Guid WzHeader { get; set; }

    private SfGrid<WzRowMeyleDto> _grid;
    private List<WzRowMeyleDto> WzRowsMeyle { get; set; } = new List<WzRowMeyleDto>();
    private WzHeaderDto _wzHeader;
    private SfTextBox _scanner;

    private WzRowMeyleDto? SelectedRow { get; set; }

    private bool _isValid;

    private bool Visibility { get; set; }

    private string? EmailAddresses { get; set; } = string.Empty;
    private string PalletNumber { get; set; } = "0";
    private string ScannedValues { get; set; } = string.Empty;

    private IDictionary<RowMeyleModel, string?> ScannedValuesWithItems { get; set; } = new Dictionary<RowMeyleModel, string?>();

    private string LastScannedValue { get; set; } = string.Empty;
    private string ScannedValue { get; set; } = string.Empty;

    private void HideModal()
    {
        Visibility = false;
    }

    protected override async Task OnAfterRenderAsync(bool firstRender)
    {
        if (firstRender)
        {
            _wzHeader = await WarehouseService.GetWzHeaderByIdAsync(WzHeader);
            WzRowsMeyle = (await WarehouseService.GetWzRowsByWzHeaderId(WzHeader)).ToList();

            WzRowsMeyle.ToList().ForEach(x => ScannedValuesWithItems.Add(new RowMeyleModel
            {
                ItemNumber = x.ItemNumber.Replace(" ", "").Replace("-", ""),
                PartNumberSl = x.PartNumberSl,
                TransactionNumber = x.TransactionNumber,
                WzNumber = x.WzNumber
            }, null));

            EmailAddresses = _wzHeader.EmailAddresses;

            await _scanner.FocusAsync();
            StateHasChanged();
        }
    }

    private async Task SaveChanges()
    {
        List<WzRowMeyleDto> changedRecords = new List<WzRowMeyleDto>();
        
        if (!string.IsNullOrWhiteSpace(EmailAddresses))
        {
            await WarehouseService.AddEmailsToWzHeaderAsync(WzHeader, EmailAddresses);
        }

        IDictionary<RowMeyleModel, string?> scannedValuesWithNotNullValues = ScannedValuesWithItems.Where(x => x.Value is not null).ToDictionary(x => x.Key, y => y.Value);

        foreach (KeyValuePair<RowMeyleModel, string?> scannedValueWithNotNullValue in scannedValuesWithNotNullValues)
        {
            WzRowMeyleDto rowMeyleDto = WzRowsMeyle.First(r => r.ItemNumber.Replace(" ", "").Replace("-", "").Trim() == scannedValueWithNotNullValue.Key.ItemNumber && r.PartNumberSl == scannedValueWithNotNullValue.Key.PartNumberSl && r.WzNumber == scannedValueWithNotNullValue.Key.WzNumber);

            rowMeyleDto.PalletNumber = int.Parse(PalletNumber);
            rowMeyleDto.PartNumber = scannedValueWithNotNullValue.Value;
            
            changedRecords.Add(rowMeyleDto);
        }

        if (changedRecords.Any())
        {
            await UpdateRows(changedRecords);
        }

        await _grid.EndEditAsync();
    }

    private async Task OnBatchSave(BeforeBatchSaveArgs<WzRowMeyleDto> obj)
    {
        var changes = obj.BatchChanges;
        List<WzRowMeyleDto> changedRecords = changes.ChangedRecords;

        if (!changedRecords.Any()) return;

        await UpdateRows(changedRecords);
    }

    private async Task ExportXls()
    {
        int count = WzRowsMeyle.Count(x => x.PalletNumber == null);

        _isValid = count == 0;
        _isValid = _isValid && !string.IsNullOrWhiteSpace(EmailAddresses);

        if (_isValid)
        {
            await WarehouseService.AddEmailsToWzHeaderAsync(WzHeader, EmailAddresses);
            await WarehouseService.GenerateXlsForMeyleAsync(WzHeader);
        }

        Visibility = true;
    }

    private async Task ScanValue(ChangedEventArgs obj)
    {
        if (string.IsNullOrWhiteSpace(obj.Value)) return;

        MaterialTransactionDto? materialTransactionByPartNumber = await GetMaterialTransactionByPartNumber(ScannedValue).ConfigureAwait(false);

        if (materialTransactionByPartNumber != null)
        {
            var rowIndex = WzRowsMeyle.FindIndex(x => x.FaIndex == materialTransactionByPartNumber.Item && x.Quantity == materialTransactionByPartNumber.Qty);
            rowIndex = WzRowsMeyle.FindIndex(x => x.FaIndex == "FA24278.18" && x.Quantity == 70);
            
            if (_grid.AllowPaging)
            {
                int pageSize = _grid.PageSettings.PageSize;
                int targetPage = (rowIndex / pageSize) + 1;
                await _grid.GoToPageAsync(targetPage).ConfigureAwait(false);
                
                rowIndex %= pageSize;
            }

            await _grid.SelectRowAsync(rowIndex).ConfigureAwait(false);
            await _grid.ScrollIntoViewAsync(rowIndex: rowIndex).ConfigureAwait(false);
            await _grid.FocusAsync().ConfigureAwait(false);

            SelectedRow = WzRowsMeyle[rowIndex];
        }
        else if (ValidateScannedValue(obj.Value) && SelectedRow != null)
        {
            SelectedRow.PartNumber = obj.Value.Trim();
            await InvokeAsync(StateHasChanged).ConfigureAwait(false);
            await _grid.Refresh().ConfigureAwait(false);
        }
        else
        {
            ScannedValue = obj.Value.Trim();
            SelectedRow = null;
        }

        // if (ScannedValuesWithItems.All(x => x.Key.ItemNumber != ScannedValue.Replace(" ", "").Trim()) && ScannedValuesWithItems.Any(x => x.Key.ItemNumber == LastScannedValue.Replace(" ", "").Trim()))
        // {
        //     RowMeyleModel key = ScannedValuesWithItems.First(x => x.Key.ItemNumber == LastScannedValue).Key;
        //     ScannedValuesWithItems[key] = ScannedValue.Trim();
        //     ScannedValues += $"{ScannedValue}\n";
        // }
        // else if (!string.IsNullOrWhiteSpace(ScannedValue))
        // {
        //     ScannedValues += $"{ScannedValue}: ";
        // }

        LastScannedValue = ScannedValue;
        ScannedValue = string.Empty;
    }

    private bool ValidateScannedValue(string scannedValue)
    {
        int year = DateTime.Now.Year - 2000;

        string format = $"{year}X";

        return scannedValue.StartsWith(format);
    }

    private async Task<MaterialTransactionDto?> GetMaterialTransactionByPartNumber(string partNumber)
    {
        MaterialTransactionDto? materialTransaction = await WarehouseService.GetMaterialTransactionByPartNumberAsync(partNumber).ConfigureAwait(false);

        return materialTransaction;
    }

    private async Task UpdateRows(IList<WzRowMeyleDto> changedRecords)
    {
        await WarehouseService.UpdateWzRowsMeyleAsync(changedRecords);

        WzRowsMeyle = (await WarehouseService.GetWzRowsByWzHeaderId(WzHeader)).ToList();
        StateHasChanged();
        await _grid.Refresh();
    }
}