using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Exceptions;
using Aliyun.Acs.Core.Profile;
using Aliyun.Acs.vod.Model.V20170321;
using CZFW.Core;
using CZFW.Framework.Model;
using System;
using System.Collections.Generic;
using System.Text;

namespace CZFW.Framework.VOD
{
    public class VODWorker
    {
        /// <summary>
        /// 获取播放权限
        /// </summary>
        /// <param name="videoId"></param>
        /// <returns></returns>
        public static string GetPlayAuthStr(string videoId)
        { 
            if (string.IsNullOrWhiteSpace(videoId))
            {
                return videoId;
            }
            var video = GetPlayAuth(videoId);
            if (video == null)
            {
                return "";
            }
            return video.PlayAuth;
        }

        private static IClientProfile getProfile()
        {
            var region = ConfigHelper.GetValue<string>("AliyunVOD:AliVODRegion");
            var key = ConfigHelper.GetValue<string>("AliyunVOD:AccessKeyId");
            var secret = ConfigHelper.GetValue<string>("AliyunVOD:AccessKeySecret");
            IClientProfile clientProfile = DefaultProfile.GetProfile(region, key, secret);
            return clientProfile;
        }

        private static GetVideoPlayAuthResponse GetPlayAuth(string vid)
        {
            var clientProfile = getProfile();
            DefaultAcsClient client = new DefaultAcsClient(clientProfile);
            GetVideoPlayAuthRequest request = new GetVideoPlayAuthRequest();
            request.AcceptFormat = Aliyun.Acs.Core.Http.FormatType.JSON;
            request.VideoId = vid;
            try
            {
                GetVideoPlayAuthResponse response = client.GetAcsResponse(request);
                return response;
            }
            catch (ServerException e)
            {
                Console.WriteLine(e.ErrorCode);
                Console.WriteLine(e.ErrorMessage);
            }
            catch (ClientException e)
            {
                Console.WriteLine(e.ErrorCode);
                Console.WriteLine(e.ErrorMessage);
            }
            return null;
        }
    }
}