using System;
using System.IO;
using Qiniu.Storage;
using Qiniu.Util;

namespace Hncore.Infrastructure.Common
{
    public class ImageCloudHelper
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns>图片地址</returns>
        public static string UploadImage(Stream stream, string prefix)
        {
            //todo
            return "";
            Mac mac = new Mac("3bmkJLD-inSGpQnLr_9UlommFT81B5L0ryesJLhS", "X22vza-l53jcZyi_fmaex88R065_Ip2_3j5Im0Se");

            string bucket = "property";

            // 上传策略，参见 
            // https://developer.qiniu.com/kodo/manual/put-policy
            PutPolicy putPolicy = new PutPolicy();
            // 如果需要设置为"覆盖"上传(如果云端已有同名文件则覆盖)，请使用 SCOPE = "BUCKET:KEY"
            // putPolicy.Scope = bucket + ":" + saveKey;
            putPolicy.Scope = bucket;
            // 上传策略有效期(对应于生成的凭证的有效期)          
            putPolicy.SetExpires(3600);

            string jstr = putPolicy.ToJsonString();
            string token = Auth.CreateUploadToken(mac, jstr);

            FormUploader fu = new FormUploader(new Config()
            {
                Zone = Zone.ZONE_CN_East
            });


            string fileName = prefix + Guid.NewGuid() + ".jpg";

            var result = fu.UploadStream(stream, fileName, token, null);
            
            if (result.Code == 200)
            {
                return "http://propertyimages.etor.vip/" + fileName;
            }


            return null;
        }

        public static string UploadImage(string imageBase64, string prefix)
        {
            byte[] imageByte = Convert.FromBase64String(imageBase64);
            
            var stream = new MemoryStream(imageByte);

            return UploadImage(stream, prefix);
        }

        public static string GetToken(int expireInSeconds=3600)
        {
            Mac mac = new Mac("3bmkJLD-inSGpQnLr_9UlommFT81B5L0ryesJLhS", "X22vza-l53jcZyi_fmaex88R065_Ip2_3j5Im0Se");

            string bucket = "property";

            // 上传策略，参见 
            // https://developer.qiniu.com/kodo/manual/put-policy
            PutPolicy putPolicy = new PutPolicy();
            // 如果需要设置为"覆盖"上传(如果云端已有同名文件则覆盖)，请使用 SCOPE = "BUCKET:KEY"
            // putPolicy.Scope = bucket + ":" + saveKey;
            putPolicy.Scope = bucket;
            // 上传策略有效期(对应于生成的凭证的有效期)          
            putPolicy.SetExpires(expireInSeconds);
            putPolicy.ReturnBody = "{\"key\":$(key),\"hash\":$(etag),\"mimeType\":$(mimeType),\"fname\":$(fname),\"fsize\":$(fsize),\"avinfo\":$(avinfo),\"ext\":$(ext),\"imageInfo\":$(imageInfo)}";

            string jstr = putPolicy.ToJsonString();
            string token = Auth.CreateUploadToken(mac, jstr);

            return token;
        }
    }
}