using System;

using System.Collections.Generic;

using System.Net.Http;

using System.Linq;

using System.Threading.Tasks;

using System.Security.Cryptography;

using System.Reflection;

using Newtonsoft.Json;

using Refit;

public class Program

{

    static ShopeeApiSetting _shopeeApiSetting = null;

    static IShopeePartnerApiClient _apiClient = null;

    public static void Main()

    {

        _shopeeApiSetting = LoadConfig();

        _apiClient = RestService.For<IShopeePartnerApiClient>(_shopeeApiSetting.ApiUrl);

        var orderNo = new List<string>() {};

    }

    public async Task<ShopeeApiOrderStatusResponse> GetOrderInfoAsync(string orderCode)

    {

        try

        {

            ShopeeApiOrderStatusResponse res = null;

            foreach (var shopId in _shopeeApiSetting.ShopIdList)

            {

                var requestModel = CreateGetOrderInfoRequestModel(orderCode, shopId);

                res = await _apiClient.GetOrderInfoAsync(GenerateRequestToken(requestModel), requestModel);

                res.ShopId = shopId;

​

                if ((res.Errors == null || (res.Errors?.Length ?? 0) == 0) && (res.Orders != null || (res.Orders?.Length ?? 0) > 0)) { break; }

            }

​

            return res;

        }

        catch (Exception)

        {

            return null;

        }

    }

    private ShopeeApiOrderStatusRequest CreateGetOrderInfoRequestModel(string orderCode, long shopeId)

    {

        return new ShopeeApiOrderStatusRequest

        {

            ShopId = shopeId,

            PartnerId = _shopeeApiSetting.PartnerId,

            Timestamp = DateTime.UtcNow.ToUnixTimestamp(),

            OrderIdList = new string[] { orderCode }

        };

    }

    public static ShopeeApiSetting LoadConfig()

    {

        return new ShopeeApiSetting() {

            IsDev = false,

            ApiUrl = "https://partner.shopeemobile.com",

            PartnerId = 842196,

            ShopIdList = new long[] { 72135979, 178191615 },

            PartnerKey = "e38f6c8a9f7dad0ffcd4d36f26b7602c20a2be3fc6f55f27ed9ec1cd1c09104f",

        };

    }

    private string GenerateRequestToken(object requestObject)

    {

        var requestUrl = "";

        var requestPath = "";

​

        MethodInfo method = typeof(IShopeePartnerApiClient).GetMethod("GetOrderInfoAsync");

        object[] attributes = method.GetCustomAttributes(true);

        foreach (var attr in attributes)

        {

            if (attr is HttpMethodAttribute attribute)

            {

                requestPath = attribute.Path;

                break;

            }

        }

​

        requestUrl = _shopeeApiSetting.ApiUrl + requestPath;

​

        //var stringToSign = $"{requestUrl}|{Newtonsoft.Json.JsonConvert.SerializeObject(requestObject)}";

        var stringToSign = requestUrl + "|" + Newtonsoft.Json.JsonConvert.SerializeObject(requestObject);

        var signed = "";

​

        System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();

        byte[] keyByte = encoding.GetBytes(_shopeeApiSetting.PartnerKey);

​

        HMACSHA256 hmacsha1 = new HMACSHA256(keyByte);

​

        byte[] messageBytes = encoding.GetBytes(stringToSign);

        byte[] hashmessage = hmacsha1.ComputeHash(messageBytes);

​

        for (int i = 0; i < hashmessage.Length; i++)

        {

            signed += hashmessage[i].ToString("X2");

        }

​

        return signed;

    }

}

​

public class ShopeeApiSetting

{

    public bool IsDev { get; set; }

    public string ApiUrl { get; set; }

    public long PartnerId { get; set; }

    public long[] ShopIdList { get; set; }

    public string PartnerKey { get; set; }

}

​

public interface IShopeePartnerApiClient

{

    [Post("/api/v1/orders/detail")]

    Task<ShopeeApiOrderStatusResponse> GetOrderInfoAsync([Header("Authorization")] string accessToken, [Body]ShopeeApiOrderStatusRequest order);

​

    [Post("/api/v1/orders/detail")]

    Task<HttpResponseMessage> TestGetOrderInfoAsync([Header("Authorization")] string accessToken, [Body] ShopeeApiOrderStatusRequest order);

}

​

public class ShopeeApiOrderStatusRequest

{

    [AliasAs("ordersn_list"), JsonProperty(PropertyName = "ordersn_list")]

    public string[] OrderIdList { get; set; }

    [AliasAs("partner_id"), JsonProperty(PropertyName = "partner_id")]

    public long PartnerId { get; set; }

    [AliasAs("shopid"), JsonProperty(PropertyName = "shopid")]

    public long ShopId { get; set; }

    [AliasAs("timestamp"), JsonProperty(PropertyName = "timestamp")]

    public long Timestamp { get; set; }

}

​

public class ShopeeApiOrderStatusResponse

{

    [AliasAs("shop_id"), JsonProperty(PropertyName = "shop_id")]

    public long ShopId { get; set; }

    [AliasAs("errors"), JsonProperty(PropertyName = "errors")]

    public string[] Errors { get; set; }

    [AliasAs("orders"), JsonProperty(PropertyName = "orders")]

    public ShopeeApiOrderInfo[] Orders { get; set; }

    [AliasAs("request_id"), JsonProperty(PropertyName = "request_id")]

    public string RequestId { get; set; }

}

​

public class ShopeeApiOrderInfo

{

    [AliasAs("order_status"), JsonProperty(PropertyName = "order_status")]

    public string OrderStatusAsText { get; set; }

    [AliasAs("ordersn"), JsonProperty(PropertyName = "ordersn")]

    public string OrderId { get; set; }

    [AliasAs("buyer_username"), JsonProperty(PropertyName = "buyer_username")]

    public string BuyerUsername { get; set; }

    [AliasAs("items"), JsonProperty(PropertyName = "items")]

    public ShopeeApiItemInfo[] Items { get; set; }

    //[IgnoreDataMember]

    //public bool IsOrderStatusValid {

    //    get

    //    {

    //        var validStatus = new string[] { "COMPLETED" };

    //        return validStatus.Contains(OrderStatusAsText);

    //    }

    //}

}

​

public class ShopeeApiItemInfo

{

    [AliasAs("item_id"), JsonProperty(PropertyName = "item_id")]

    public long ItemId { get; set; }

    [AliasAs("variation_quantity_purchased"), JsonProperty(PropertyName = "variation_quantity_purchased")]

    public long Amount { get; set; }

    [AliasAs("variation_id"), JsonProperty(PropertyName = "variation_id")]

    public string VariationId { get; set; }

​

    public string FullItemSkuId

    {

        get

        {

            return (VariationId != "0") ? String.Join("_", (new List<string>() { ItemId.ToString(), VariationId }).Where(x => !String.IsNullOrEmpty(x))) : ItemId.ToString();

        }

    }

}

​

public static class UnixTimestampExtension

{

    public static long ToUnixTimestamp(this DateTime dt)

    {

        return (long)(dt.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;

    }

​

    public static long ToUnixTimestamp(this DateTimeOffset dt)

    {

        return (long)(dt.Subtract(new DateTime(1970, 1, 1))).TotalSeconds;

    }

}