using Aliyun.OSS;
using Hncore.Infrastructure.Core.Web;
using Hncore.Infrastructure.Serializer;
using Hncore.Infrastructure.WebApi;
using Hncore.Pass.Oss.Request;
using Hncore.Pass.OSS.Model;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace Hncore.Pass.Vpn.Service
{
    public class UploadService
    {
        OssClient m_AliOssClient;
        IConfiguration m_Configuration;
        const string m_BucketName = "hncourse";
        public UploadService(OssClient _AliOssClient, IConfiguration _Configuration)
        {
            m_AliOssClient = _AliOssClient;
            m_Configuration = _Configuration;
        }
        public async Task<(string,string,Stream)> GetStreamFromRequest(HttpRequest reuest)
        {
            var name = "";
            var fileKey = DateTime.Now.Ticks + new Random((int)DateTime.Now.Ticks).Next(0, 100000).ToString();
            Stream stream = default(Stream);
            //base64上传
            if (reuest.ContentType.Contains("application/json"))
            {
                var body = await reuest.ReadBodyAsStringAsync();
                var request = body.FromJsonTo<RequestBase<UploadImageBase64Request>>();
                var base64 = request.Data.Base64;
                byte[] imageByte = Convert.FromBase64String(base64);
                stream = new MemoryStream(imageByte);
                fileKey = $"{fileKey.ToString()}.jpg";
                name = request.Data.Name;
            }
            else if (reuest.Form.Files.Any())
            {
                var file = reuest.Form.Files.First();
                name = file.Name;
                fileKey = $"{fileKey.ToString()}{Path.GetExtension(file.FileName)}";
                stream = file.OpenReadStream();
            }
            return (fileKey, name,stream);
        }

        public UploadResult AliYunUpload(string key,string name, Stream stream)
        {
            var result = new UploadResult()
            {
                BaseUrl = string.Format("http://{0}.{1}", m_BucketName, m_Configuration["Aliyun:Oss:AliEndpoint"]),
                Path = key,
                OriginName = name
            };
            var ret = m_AliOssClient.PutObject(m_BucketName, key, stream);          

            return result;
        }
    }
}