TourIAm/TIAMWebApp/Server/Services/SumupService.cs

using AyCode.Core.Loggers;
using System.Net.Http.Headers;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;
using TIAMWebApp.Shared.Application.Models.ClientSide.Payment;

namespace TIAMWebApp.Server.Services
{

    public class SumupService
    {
        private readonly HttpClient _httpClient;
        private readonly TIAM.Core.Loggers.ILogger _logger;
        private readonly string _clientId;
        private readonly string _clientSecret;

        public SumupService(HttpClient httpClient, string clientId, string clientSecret, IEnumerable<IAcLogWriterBase> logWriters)
        {
            _httpClient = httpClient;
            _clientId = clientId;
            _clientSecret = clientSecret;
            _logger = new TIAM.Core.Loggers.Logger<SumupService>(logWriters.ToArray());
        }

        public async Task<string> GetAccessTokenAsync()
        {
            var authToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"{_clientId}:{_clientSecret}"));
            _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", authToken);

            var requestContent = new StringContent("grant_type=client_credentials", Encoding.UTF8, "application/x-www-form-urlencoded");

            var response = await _httpClient.PostAsync("https://api.sumup.com/token", requestContent);
            response.EnsureSuccessStatusCode();

            var responseContent = await response.Content.ReadAsStringAsync();
            var tokenResponse = JsonSerializer.Deserialize<SumUpTokenResponse>(responseContent);

            return tokenResponse.AccessToken;
        }

        public async Task<PaymentResponse> CreatePaymentLinkAsync(SumupPaymentRequest paymentRequest)
        {
            var accessToken = await GetAccessTokenAsync();
            //_httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
            _httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", "sup_sk_0rt9IFrMpE9qA6328vqMwCtiCntRXZxGR");

            var requestContent = new StringContent(JsonSerializer.Serialize(paymentRequest), Encoding.UTF8, "application/json");

            var response = await _httpClient.PostAsync("https://api.sumup.com/v0.1/checkouts", requestContent);
            response.EnsureSuccessStatusCode();

            var responseContent = await response.Content.ReadAsStringAsync();
            var paymentResponse = JsonSerializer.Deserialize<PaymentResponse>(responseContent);

            return paymentResponse;
        }

        public async Task<PaymentResponse> CreateCheckout(SumupPaymentRequest request)
        {
            var options = new JsonSerializerOptions
            {
                PropertyNamingPolicy = new LowercaseNamingPolicy(),
                PropertyNameCaseInsensitive = true // To ensure deserialization works regardless of case
            };

            var checkoutRequest = new HttpRequestMessage(HttpMethod.Post, "https://api.sumup.com/v0.1/checkouts");
            checkoutRequest.Headers.Authorization = new AuthenticationHeaderValue("Bearer", "sup_sk_0rt9IFrMpE9qA6328vqMwCtiCntRXZxGR");
            var kvaanyad = JsonSerializer.Serialize(request, options);
            _logger.Detail($"Request json: {kvaanyad}");
            checkoutRequest.Content = new StringContent(kvaanyad, Encoding.UTF8, "application/json");
            _logger.Detail($"Request content: { await checkoutRequest.Content.ReadAsStringAsync()}");
            var response = await _httpClient.SendAsync(checkoutRequest);
            _logger.Detail(await response.Content.ReadAsStringAsync());
            if (response.IsSuccessStatusCode)
            {
                var jsonResponse = await response.Content.ReadAsStringAsync();
                var bleh = response.Content.ToString();
                var valami = JsonSerializer.Deserialize<PaymentResponse>(jsonResponse);
                return valami;
            }

            var errorResponse = await response.Content.ReadAsStringAsync();
            throw new Exception($"Unable to create checkout. Response: {errorResponse}");
        }

        public async Task<string> GetPayment(string checkoutId)
        {
            string url = $"https://api.sumup.com/v0.1/checkouts/{checkoutId}";

            // Replace with your actual access token
            string accessToken = "sup_sk_0rt9IFrMpE9qA6328vqMwCtiCntRXZxGR";

            var request = new HttpRequestMessage(HttpMethod.Get, url);
            request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", accessToken);

            var response = await _httpClient.SendAsync(request);

            if (!response.IsSuccessStatusCode)
            {
                return "error";
            }
            else 
            {
                var jsonResponse = await response.Content.ReadAsStringAsync();
                var checkoutResponse = JsonSerializer.Deserialize<GetPaymentResponse>(jsonResponse);
                //if we have to do something with the payment, we can do it here
                string paymentStatus = checkoutResponse.Status;
                switch (paymentStatus)
                {
                    case "pending":
                        //update in DB?
                            break;
                    case "failed":
                        //update in DB?
                        break;
                    case "payed":
                        //update in DB?
                        break;
                }
                return jsonResponse;
            
            }

        }


    }

    public class SumUpTokenResponse
    {
        [JsonPropertyName("access_token")]
        public string AccessToken { get; set; }
    }

    // SumUpService.cs (continued)

   

    public class PaymentResponse
    {
        [JsonPropertyName("amount")]
        public int Amount { get; set; }

        [JsonPropertyName("checkout_reference")]        
        public string CheckoutReference { get; set; }

        [JsonPropertyName("checkout_type")]
        public string CheckoutType { get; set; }

        [JsonPropertyName("currency")]
        public string Currency { get; set; }

        [JsonPropertyName("date")]
        public DateTimeOffset Date { get; set; }

        [JsonPropertyName("description")]
        public string Description { get; set; }

        [JsonPropertyName("id")]
        public Guid Id { get; set; }

        [JsonPropertyName("merchant_code")]
        public string MerchantCode { get; set; }

        [JsonPropertyName("merchant_country")]
        public string MerchantCountry { get; set; }

        [JsonPropertyName("merchant_name")]
        public string MerchantName { get; set; }

        [JsonPropertyName("pay_to_email")]
        public string PayToEmail { get; set; }

        [JsonPropertyName("product")]
        public string Product { get; set; }

        [JsonPropertyName("purpose")]
        public string Purpose { get; set; }

        [JsonPropertyName("status")]
        public string Status { get; set; }

        [JsonPropertyName("transactions")]
        public object[] Transactions { get; set; }
    }

    public class GetPaymentResponse
    {
        [JsonPropertyName("amount")]
        public double Amount { get; set; }

        [JsonPropertyName("checkout_reference")]
        public string CheckoutReference { get; set; }

        [JsonPropertyName("currency")]
        public string Currency { get; set; }

        [JsonPropertyName("customer_id")]
        public string CustomerId { get; set; }

        [JsonPropertyName("date")]
        public DateTimeOffset Date { get; set; }

        [JsonPropertyName("description")]
        public string Description { get; set; }

        [JsonPropertyName("id")]
        public Guid Id { get; set; }

        [JsonPropertyName("mandate")]
        public Mandate Mandate { get; set; }

        [JsonPropertyName("merchant_code")]
        public string MerchantCode { get; set; }

        [JsonPropertyName("pay_to_email")]
        public string PayToEmail { get; set; }

        [JsonPropertyName("return_url")]
        public string ReturnUrl { get; set; }

        [JsonPropertyName("status")]
        public string Status { get; set; }

        [JsonPropertyName("transactions")]
        public Transaction[] Transactions { get; set; }

        [JsonPropertyName("valid_until")]
        public DateTime ValidUntil { get; set; }

        [JsonPropertyName("merchant_name")]
        public string MerchantName { get; set; }

        [JsonPropertyName("payment_instrument")]
        public PaymentInstrument PaymentInstrument { get; set; }

        [JsonPropertyName("redirect_url")]
        public string RedirectUrl { get; set; }

        [JsonPropertyName("transaction_code")]
        public string TransactionCode { get; set; }

        [JsonPropertyName("transaction_id")]
        public Guid TransactionId { get; set; }
    }

    public partial class Mandate
    {
        [JsonPropertyName("merchant_code")]
        public string MerchantCode { get; set; }

        [JsonPropertyName("status")]
        public string Status { get; set; }

        [JsonPropertyName("type")]
        public string Type { get; set; }
    }

    public partial class PaymentInstrument
    {
        [JsonPropertyName("token")]
        public Guid Token { get; set; }
    }

    public partial class Transaction
    {
        [JsonPropertyName("amount")]
        public double Amount { get; set; }

        [JsonPropertyName("currency")]
        public string Currency { get; set; }

        [JsonPropertyName("id")]
        public Guid Id { get; set; }

        [JsonPropertyName("installments_count")]
        public string InstallmentsCount { get; set; }

        [JsonPropertyName("payment_type")]
        public string PaymentType { get; set; }

        [JsonPropertyName("status")]
        public string Status { get; set; }

        [JsonPropertyName("timestamp")]
        public DateTimeOffset Timestamp { get; set; }

        [JsonPropertyName("transaction_code")]
        public string TransactionCode { get; set; }

        [JsonPropertyName("auth_code")]
        public string AuthCode { get; set; }

        [JsonPropertyName("entry_mode")]
        public string EntryMode { get; set; }

        [JsonPropertyName("internal_id")]
        public long InternalId { get; set; }

        [JsonPropertyName("merchant_code")]
        public string MerchantCode { get; set; }

        [JsonPropertyName("tip_amount")]
        public long TipAmount { get; set; }

        [JsonPropertyName("vat_amount")]
        public long VatAmount { get; set; }
    }

    public class LowercaseNamingPolicy : JsonNamingPolicy
    {
        public override string ConvertName(string name)
        {
            return name.ToLowerInvariant();
        }
    }


}