using System;
using WX.CRM.BLL.Base;
using WX.CRM.BLL.Util;
using WX.CRM.Common;
using WX.CRM.DAL.Redis;
using WX.CRM.IBLL.Wx;
using WX.CRM.Model.Entity;

namespace WX.CRM.BLL.Wx
{
    public class WX_FILEPATH_BL : IWX_FILEPATH
    {
        public bool Add(string MD5SerialNum, string url)
        {
            try
            {
                using (crmContext db = new crmContext())
                {
                    WX_FILEPATH model = new WX_FILEPATH();
                    model.PKID = new SEQUENCES_BL().Seq_base_get();
                    model.MD5SERIALNUM = MD5SerialNum;
                    model.URL = url;
                    model.CTIME = DateTime.Now;
                    db.WX_FILEPATH.Add(model);
                    bool result = db.SaveChanges().GetResult();
                    if (result)
                        AddToRedis(model.MD5SERIALNUM, model.URL);
                    return result;
                }
            }
            catch (Exception ex)
            {
                LogHelper.Error(ex);
                return false;
            }
        }

        public string GetUrl(string serialNum)
        {
            try
            {
                RedisString<string> rdb = new RedisString<string>();
                return rdb.Get(serialNum);
            }
            catch (Exception ex)
            {
                LogHelper.Error("获取路径出错:" + ex.ToString());
                return "";
            }
        }

        bool AddToRedis(string serialNum, string url)
        {
            try
            {
                RedisString<string> rdb = new RedisString<string>();
                return rdb.Set(serialNum, url);
            }
            catch (Exception ex)
            {
                LogHelper.Error("添加路径至Redis出错:" + ex.ToString());
                return false;
            }
        }

        public string UploadImage(string path, int type)
        {
            if (string.IsNullOrWhiteSpace(path))
            {
                throw new Exception("路径不能为空!");
            }
            try
            {
                var prefix = "wx_";
                var suffix = string.Empty;
                switch (type)
                {
                    case 0: suffix = ".jpg"; break;
                    case 1: suffix = ".mp4"; break;
                    case 2: suffix = ".amr"; break;
                }
                var md5 = Utility.GetMD5HashFromFile(path);
                var fileName = md5 + suffix;
                var url = GetUrl(prefix + md5);
                if (!string.IsNullOrEmpty(url))
                    return url;
                var aliUrl = AliyunHelper.UploadImage(path, fileName);
                Add(prefix + md5, aliUrl);
                return aliUrl;
            }
            catch
            {
                throw;
            }
        }
    }
}