using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Http;
using System.Net.Http.Json;
using System.Text;
using System.Threading.Tasks;
using TEAMModelOS.SDK.Extension;

namespace TEAMModelOS.SDK.Models.Service
{
    public class NotificationService
    {
        private readonly HttpClient _httpClient;
        public NotificationService(HttpClient httpClient)
        {
            _httpClient = httpClient;
        }
        public    async Task<int> SendNotification(string clientID, string clientSecret, string location, string url, Notification notification) {
            if (location.Contains("China")) {
                location = "China";
            }
            else if (location.Contains("Global"))
            {
                location = "Global";
            }
            var token = await CoreTokenExtensions.CreateAccessToken(clientID, clientSecret, location);
            _httpClient.DefaultRequestHeaders.Add("Authorization",$"Bearer {token.AccessToken}" );
            HttpResponseMessage responseMessage = await _httpClient.PostAsJsonAsync(url, notification);
            if (responseMessage.StatusCode == HttpStatusCode.OK)
            {
                return 200;
            }
            else if (responseMessage.StatusCode == HttpStatusCode.Unauthorized)
            {
                return 401;
            }
            else {
                return 500;
            }
        }
    }

    public class Notification {
        /// <summary>
        /// App name (hita) 小寫
        /// </summary>
        public string hubName { get; set; }
        /// <summary>
        /// 通知訊息種類，分為msg，info及notice。       
        /// msg : 一般訊息，會存Redis，拿了就刪。
        /// info : 公告訊息或給多人讀取的訊息，會存Redis，拿了不刪，只能等時間到期或透過API刪除。
        /// notice : 屬於系統層級訊息，不存Redis，直接裸送訊息。
        /// </summary>
        public string type { get; set; }
        /// <summary>
        /// 送訊息的來源端 格式為"{服務}:{類別}: ..." 如"ies5:hbrd"，"ies5:hbrd:hb0901"
        /// </summary>
        public string from { get; set; }
        /// <summary>
        /// 接收對象或手機註冊的tag，ID或服務等...
        /// </summary>
        public List<string> to { get; set; }
        /// <summary>
        /// 	標題。
        /// </summary>
        public string label { get; set; }
        /// <summary>
        /// 正文。
        /// </summary>
        public string body { get; set; }
        /// <summary>
        /// 該訊息到期時間(UTC)，單位為秒，且必須大於現在時間。
        /// </summary>
        public long expires { get; set; }
    }
}