Backend-Api/0_Framework/Application/PaymentGateway/SepehrPaymentGateway.cs

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Json;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;

namespace _0_Framework.Application.PaymentGateway;

public class SepehrPaymentGateway:IPaymentGateway
{
	private readonly HttpClient _httpClient;
	private const long TerminalId = 99213700;
	private readonly ILogger<SepehrPaymentGateway> _logger;

	public SepehrPaymentGateway(IHttpClientFactory httpClient, ILogger<SepehrPaymentGateway> logger)
	{
		_logger = logger;
		_httpClient = httpClient.CreateClient();
		_httpClient.BaseAddress = new Uri("https://sepehr.shaparak.ir/Rest/V1/PeymentApi/");
	}

	public async Task<PaymentGatewayResponse> Create(CreatePaymentGatewayRequest command, CancellationToken cancellationToken = default)
	{
		_logger.LogInformation("Create payment started. TransactionId: {TransactionId}, Amount: {Amount}", command.TransactionId, command.Amount);
		command.ExtraData ??= new Dictionary<string, object>();
		_logger.LogInformation("Initializing extra data with FinancialInvoiceId: {FinancialInvoiceId}", command.FinancialInvoiceId);
		command.ExtraData.Add("financialInvoiceId", command.FinancialInvoiceId);
		var extraData = JsonConvert.SerializeObject(command.ExtraData);
		_logger.LogInformation("Serialized extra data payload: {Payload}", extraData);
		
		var res = await _httpClient.PostAsJsonAsync("GetToken", new
		{
			TerminalID = TerminalId,
			Amount = command.Amount,
			InvoiceID = command.TransactionId,
			callbackURL = command.CallBackUrl,
			payload = extraData
		}, cancellationToken: cancellationToken);
		_logger.LogInformation("Create payment request sent. StatusCode: {StatusCode}", res.StatusCode);
		// خواندن محتوای پاسخ
		var content = await res.Content.ReadAsStringAsync(cancellationToken);
		_logger.LogInformation("Create payment response content: {Content}", content);
		
		// تبدیل پاسخ JSON به آبجکت دات‌نت
		var json = System.Text.Json.JsonDocument.Parse(content);
		_logger.LogInformation("Create payment JSON parsed successfully.");

		// گرفتن مقدار AccessToken
		var accessToken = json.RootElement.GetProperty("Accesstoken").ToString();
		var status = json.RootElement.GetProperty("Status").ToString();
		_logger.LogInformation("Create payment parsed values. Status: {Status}, AccessToken: {AccessToken}", status, accessToken);
		
		return new PaymentGatewayResponse
		{
			Status = status,
			IsSuccess = status == "0",
			Token = accessToken,
		};
	}

	public string GetStartPayUrl(string token)=>
		$"https://sepehr.shaparak.ir/Payment/Pay?token={token}&terminalId={TerminalId}";

	public async Task<PaymentGatewayResponse> Verify(VerifyPaymentGateWayRequest command, CancellationToken cancellationToken = default)
	{
		_logger.LogInformation("Verify payment started. DigitalReceipt: {DigitalReceipt}", command.DigitalReceipt);
		var res = await _httpClient.PostAsJsonAsync("Advice", new
		{
			digitalreceipt = command.DigitalReceipt,
			Tid = TerminalId,
		}, cancellationToken: cancellationToken);
		_logger.LogInformation("Verify payment request sent. StatusCode: {StatusCode}", res.StatusCode);
		// خواندن محتوای پاسخ
		var content = await res.Content.ReadAsStringAsync(cancellationToken);
		_logger.LogInformation("Verify payment response content: {Content}", content);
		
		// تبدیل پاسخ JSON به آبجکت دات‌نت
		var json = System.Text.Json.JsonDocument.Parse(content);
		_logger.LogInformation("Verify payment JSON parsed successfully.");
		
		var message = json.RootElement.GetProperty("Message").GetString();
		var status = json.RootElement.GetProperty("Status").GetString();
		_logger.LogInformation("Verify payment parsed values. Status: {Status}, Message: {Message}", status, message);
		return new PaymentGatewayResponse
		{
			Status = status,
			IsSuccess = status.ToLower() == "ok",
			Message = message
		};



	}

	public Task<PaymentGatewayResponse> CreateSandBox(CreatePaymentGatewayRequest command, CancellationToken cancellationToken = default)
	{
		throw new System.NotImplementedException();
	}

	public string GetStartPaySandBoxUrl(string transactionId)
	{
		throw new System.NotImplementedException();
	}

	public Task<WalletAmountResponse> GetWalletAmount(CancellationToken cancellationToken)
	{
		throw new System.NotImplementedException();
	}
}