using BackOffice.BFF.ManualPayment.Protobuf;
using BackOffice.Main.Components;
using Grpc.Core;
using Microsoft.AspNetCore.Components;

namespace BackOffice.Main.Pages.Payment;

public partial class ManualMembershipPayment
{
    [Inject] private ManualPaymentContract.ManualPaymentContractClient ManualPaymentClient { get; set; } = default!;
    [Inject] private ISnackbar Snackbar { get; set; } = default!;

    private long? _userId;
    private long _amount = 0;
    private string _referenceNumber = string.Empty;
    private string? _description;

    private bool _isProcessing = false;
    private bool _showResult = false;
    private string _resultMessage = string.Empty;
    private long _transactionId = 0;
    private long _orderId = 0;
    private long _newWalletBalance = 0;

    private async Task ProcessPayment()
    {
        // Validation
        if (!_userId.HasValue || _userId.Value <= 0)
        {
            Snackbar.Add("لطفا کاربر را انتخاب کنید", Severity.Warning);
            return;
        }

        if (_amount <= 0)
        {
            Snackbar.Add("لطفا مبلغ معتبری وارد کنید", Severity.Warning);
            return;
        }

        if (string.IsNullOrWhiteSpace(_referenceNumber))
        {
            Snackbar.Add("لطفا شماره مرجع را وارد کنید", Severity.Warning);
            return;
        }

        try
        {
            _isProcessing = true;
            _showResult = false;

            var request = new ProcessManualMembershipPaymentRequest
            {
                UserId = _userId.Value,
                Amount = _amount,
                ReferenceNumber = _referenceNumber
            };

            if (!string.IsNullOrWhiteSpace(_description))
            {
                request.Description = _description;
            }

            var response = await ManualPaymentClient.ProcessManualMembershipPaymentAsync(request);

            _resultMessage = response.Message;
            _transactionId = response.TransactionId;
            _orderId = response.OrderId;
            _newWalletBalance = response.NewWalletBalance;
            _showResult = true;

            Snackbar.Add("پرداخت دستی با موفقیت ثبت شد", Severity.Success);

            // Reset form
            await Task.Delay(2000);
            ResetForm();
        }
        catch (RpcException ex)
        {
            Snackbar.Add($"خطا در ثبت پرداخت: {ex.Status.Detail}", Severity.Error);
        }
        catch (Exception ex)
        {
            Snackbar.Add($"خطای غیرمنتظره: {ex.Message}", Severity.Error);
        }
        finally
        {
            _isProcessing = false;
        }
    }

    private void ResetForm()
    {
        _userId = null;
        _amount = 0;
        _referenceNumber = string.Empty;
        _description = null;
        _showResult = false;
        _resultMessage = string.Empty;
        _transactionId = 0;
        _orderId = 0;
        _newWalletBalance = 0;
    }
}