@using Indotalent.Features.Sales.PaymentReceive.Cqrs
@using Indotalent.Shared.Utils
@using MudBlazor
@inject PaymentReceiveService PaymentReceiveService
@inject ISnackbar Snackbar

<MudPaper Elevation="0" Square="true" Class="pa-6 mb-3 d-flex align-center justify-space-between" Style="border: 1px solid #DCEBFA;">
    <div class="d-flex align-center gap-4">
        <MudIconButton Icon="@Icons.Material.Filled.ArrowBack" OnClick="() => OnCancel.InvokeAsync()" />
        <div>
            <MudText Typo="Typo.h5" Style="font-weight: 900; color: #1a1a1a;">Add Payment Receive</MudText>
            <MudText Typo="Typo.body2" Style="color: #64748b;">Process customer payment for an existing invoice.</MudText>
        </div>
    </div>
</MudPaper>

<MudPaper Elevation="0" Outlined="true" Class="pa-8" Style="border-radius: 4px; border: 1px solid #DCEBFA;">
    <MudForm @ref="_form" Model="_model">
        <MudGrid Spacing="3">
            <MudItem xs="12"><MudText Typo="Typo.button" Color="Color.Primary" Style="font-weight: 800;">Basic Information</MudText><MudDivider /></MudItem>
            
            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Payment Date</MudText>
                <MudDatePicker @bind-Date="_model.PaymentDate"
                               Variant="Variant.Outlined" Margin="Margin.Dense" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-0">Invoice Reference</MudText>
                <MudSelect T="string" Value="_model.InvoiceId"
                           ValueChanged="OnInvoiceChanged"
                           For="@(() => _model.InvoiceId)"
                           Variant="Variant.Outlined" Margin="Margin.Dense" Dense="true" FullWidth="true"
                           AnchorOrigin="Origin.BottomCenter" TransformOrigin="Origin.TopCenter">
                    @foreach (var item in _lookup.Invoices)
                    {
                        <MudSelectItem Value="@item.Id">@item.Name</MudSelectItem>
                    }
                </MudSelect>
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-0">Payment Method</MudText>
                <MudSelect T="string" @bind-Value="_model.PaymentMethodId"
                           For="@(() => _model.PaymentMethodId)"
                           Variant="Variant.Outlined" Margin="Margin.Dense" Dense="true" FullWidth="true"
                           AnchorOrigin="Origin.BottomCenter" TransformOrigin="Origin.TopCenter">
                    @foreach (var item in _lookup.PaymentMethods)
                    {
                        <MudSelectItem Value="@item.Id">@item.Name</MudSelectItem>
                    }
                </MudSelect>
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-0">Status</MudText>
                <MudSelect T="Indotalent.Data.Enums.PaymentReceiveStatus" @bind-Value="_model.Status"
                           Variant="Variant.Outlined" Margin="Margin.Dense" Dense="true" FullWidth="true"
                           AnchorOrigin="Origin.BottomCenter" TransformOrigin="Origin.TopCenter">
                    @foreach (var item in _lookup.Statuses)
                    {
                        <MudSelectItem Value="@((Indotalent.Data.Enums.PaymentReceiveStatus)item.Value)">@item.Name</MudSelectItem>
                    }
                </MudSelect>
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Payment Amount</MudText>
                <MudNumericField @bind-Value="_model.PaymentAmount"
                                 Format="N2"
                                 Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" />
            </MudItem>

            <MudItem xs="12" sm="6">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Customer</MudText>
                <MudTextField Value="@_customerName" ReadOnly="true"
                              Variant="Variant.Outlined" Margin="Margin.Dense" FullWidth="true" Style="background-color: #f1f5f9;" />
            </MudItem>

            <MudItem xs="12">
                <MudText Typo="Typo.subtitle2" Class="mb-1">Description</MudText>
                <MudTextField @bind-Value="_model.Description"
                              For="@(() => _model.Description)"
                              Variant="Variant.Outlined" Margin="Margin.Dense" Lines="2" FullWidth="true" />
            </MudItem>

            <MudItem xs="12" Class="mt-6">
                <_PaymentReceiveItemDataTable Items="_items" />
            </MudItem>

            <MudItem xs="12" sm="7"></MudItem>
            <MudItem xs="12" sm="5">
                <MudPaper Elevation="0" Outlined="true" Class="pa-4" Style="border-radius: 4px; background-color: #F8FAFC; border: 1px solid #DCEBFA;">
                    <MudText Typo="Typo.button" Color="Color.Primary" Style="font-weight: 800;" Class="mb-4 d-block">Invoice Commercial Summary</MudText>
                    <div class="d-flex justify-space-between mb-2">
                        <MudText Typo="Typo.body2">Sub Total</MudText>
                        <MudText Typo="Typo.body2" Style="font-weight: 700;">@_invoiceSubTotal.ToString("N2")</MudText>
                    </div>
                    <div class="d-flex justify-space-between mb-2">
                        <MudText Typo="Typo.body2">Tax Amount</MudText>
                        <MudText Typo="Typo.body2" Style="font-weight: 700;">@_invoiceTax.ToString("N2")</MudText>
                    </div>
                    <MudDivider Class="my-2" />
                    <div class="d-flex justify-space-between">
                        <MudText Typo="Typo.subtitle1" Style="font-weight: 900;">Grand Total</MudText>
                        <MudText Typo="Typo.subtitle1" Color="Color.Primary" Style="font-weight: 900;">@_invoiceGrandTotal.ToString("N2")</MudText>
                    </div>
                </MudPaper>
            </MudItem>
        </MudGrid>

        <div class="d-flex justify-end gap-2 mt-8">
            <MudButton OnClick="() => OnCancel.InvokeAsync()"
                       Variant="Variant.Outlined"
                       Disabled="_processing"
                       Style="border-radius: 4px; text-transform: none; font-weight: 700;border: 1px solid #e0e0e0;">
                Cancel
            </MudButton>
            <MudButton Color="Color.Primary"
                       Variant="Variant.Filled"
                       OnClick="Submit"
                       Disabled="_processing"
                       Style="border-radius: 4px; text-transform: none; font-weight: 700;">
                @if (_processing)
                {
                    <MudProgressCircular Class="ms-n1" Size="Size.Small" Indeterminate="true" />
                    <MudText Class="ms-2" Typo="Typo.button" Style="text-transform: none !important;">Processing...</MudText>
                }
                else
                {
                    <MudText>Process Payment</MudText>
                }
            </MudButton>
        </div>
    </MudForm>
</MudPaper>

@code {
    [Parameter] public EventCallback OnCancel { get; set; }
    [Parameter] public EventCallback OnSuccess { get; set; }

    private MudForm _form = default!;
    private CreatePaymentReceiveRequest _model = new() { PaymentDate = DateTime.Today, Status = Indotalent.Data.Enums.PaymentReceiveStatus.Draft };
    private PaymentReceiveLookupResponse _lookup = new();
    private List<PaymentReceiveItemResponse> _items = new();
    
    private string _customerName = "";
    private decimal _invoiceSubTotal = 0;
    private decimal _invoiceTax = 0;
    private decimal _invoiceGrandTotal = 0;
    private bool _processing = false;

    protected override async Task OnInitializedAsync()
    {
        var res = await PaymentReceiveService.GetPaymentReceiveLookupAsync();
        if (res != null && res.IsSuccess) _lookup = res.Value ?? new();
    }

    private async Task OnInvoiceChanged(string invoiceId)
    {
        _model.InvoiceId = invoiceId;
        if (string.IsNullOrEmpty(invoiceId))
        {
            ResetInvoiceData();
            return;
        }

        var res = await PaymentReceiveService.GetInvoiceDetailForPaymentAsync(invoiceId);
        await Task.Delay(500);
        if (res != null && res.IsSuccess && res.Value != null)
        {
            _items = res.Value.Items;
            _customerName = res.Value.CustomerName ?? "";
            _invoiceSubTotal = res.Value.SalesOrderBeforeTaxAmount;
            _invoiceTax = res.Value.SalesOrderTaxAmount;
            _invoiceGrandTotal = res.Value.SalesOrderAfterTaxAmount;
            
            _model.PaymentAmount = res.Value.PaymentAmount;
            
            Snackbar.Add($"Invoice {res.Value.InvoiceNumber} items loaded.", Severity.Info);
        }
    }

    private void ResetInvoiceData()
    {
        _items.Clear();
        _customerName = "";
        _invoiceSubTotal = 0;
        _invoiceTax = 0;
        _invoiceGrandTotal = 0;
        _model.PaymentAmount = 0;
    }

    private async Task Submit()
    {
        await _form.Validate();
        if (!_form.IsValid) return;

        _processing = true;
        try
        {
            var response = await PaymentReceiveService.CreatePaymentReceiveAsync(_model);
            await Task.Delay(500);

            if (response != null && response.IsSuccess)
            {
                Snackbar.Add("Payment recorded successfully", Severity.Success);
                await OnSuccess.InvokeAsync();
            }
        }
        finally
        {
            _processing = false;
        }
    }
}