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using DownKyi.Core.Logging;
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using DownKyi.Core.Storage.Database;
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using DownKyi.Core.Utils.Encryptor;
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using System;
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using System.Drawing;
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using System.IO;
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using System.Windows.Media.Imaging;
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namespace DownKyi.Core.Storage
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{
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public class StorageHeader
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{
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// 先判断本地有没有
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// 如果有
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// 则返回本地的图片路径
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// 如果没有
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// 则下载图片并返回本地的图片路径
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/// <summary>
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/// 获取用户头像缩略图
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/// </summary>
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/// <param name="mid"></param>
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/// <param name="name"></param>
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/// <param name="url"></param>
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/// <param name="width"></param>
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/// <param name="height"></param>
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/// <returns></returns>
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public BitmapImage GetHeaderThumbnail(long mid, string name, string url, int width, int height)
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{
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string header = GetHeader(mid, name, url);
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if (header == null) { return null; }
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return GetHeaderThumbnail(header, width, height);
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}
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/// <summary>
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/// 获取用户头像缩略图
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/// </summary>
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/// <param name="header"></param>
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/// <param name="width"></param>
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/// <param name="height"></param>
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/// <returns></returns>
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public BitmapImage GetHeaderThumbnail(string header, int width, int height)
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{
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if (header == null) { return null; }
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try
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{
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Bitmap bitmap = new Bitmap(header);
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Image thumbnail = bitmap.GetThumbnailImage(width, height, null, IntPtr.Zero);
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return StorageUtils.BitmapToBitmapImage(new Bitmap(thumbnail));
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}
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catch (ArgumentException e)
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{
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Utils.Debugging.Console.PrintLine(header);
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Utils.Debugging.Console.PrintLine("GetHeaderThumbnail()发生异常: {0}", e);
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LogManager.Error("StorageHeader.GetHeaderThumbnail()", header);
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LogManager.Error("StorageHeader.GetHeaderThumbnail()", e);
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return null;
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}
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catch (Exception e)
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{
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Utils.Debugging.Console.PrintLine("GetHeaderThumbnail()发生异常: {0}", e);
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LogManager.Error("StorageHeader.GetHeaderThumbnail()", e);
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return null;
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}
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}
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/// <summary>
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/// 获取用户头像
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/// </summary>
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/// <param name="mid"></param>
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/// <returns></returns>
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public string GetHeader(long mid, string name, string url)
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{
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HeaderDb headerDb = new HeaderDb();
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Header header = headerDb.QueryByMid(mid);
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if (header != null)
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{
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string headerPath = $"{StorageManager.GetHeader()}/{header.Md5}";
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if (File.Exists(headerPath))
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{
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Header newHeader = new Header
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{
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Mid = mid,
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Name = name,
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Url = url,
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Md5 = header.Md5
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};
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headerDb.Update(newHeader);
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//headerDb.Close();
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return $"{StorageManager.GetHeader()}/{header.Md5}";
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}
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else
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{
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string md5 = DownloadImage(url);
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if (md5 != null)
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{
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Header newHeader = new Header
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{
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Mid = mid,
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Name = name,
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Url = url,
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Md5 = md5
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};
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headerDb.Insert(newHeader);
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//headerDb.Close();
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return $"{StorageManager.GetHeader()}/{md5}";
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}
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else
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{
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//headerDb.Close();
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return null;
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}
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}
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}
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else
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{
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string md5 = DownloadImage(url);
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if (md5 != null)
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{
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Header newHeader = new Header
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{
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Mid = mid,
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Name = name,
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Url = url,
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Md5 = md5
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};
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headerDb.Insert(newHeader);
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//headerDb.Close();
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return $"{StorageManager.GetHeader()}/{md5}";
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}
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else
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{
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//headerDb.Close();
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return null;
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}
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}
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}
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/// <summary>
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/// 下载图片
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/// </summary>
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/// <param name="url"></param>
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/// <returns></returns>
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private string DownloadImage(string url)
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{
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string localFile = Path.GetTempPath() + Guid.NewGuid().ToString("N");
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// 下载
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bool isSuccessed = StorageUtils.DownloadImage(url, localFile);
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if (isSuccessed)
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{
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try
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{
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string md5 = Hash.GetMD5HashFromFile(localFile);
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if (File.Exists(localFile))
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{
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string destFile = $"{StorageManager.GetHeader()}/{md5}";
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try
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{
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File.Delete(destFile);
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}
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catch { }
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// 移动到指定位置
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File.Move(localFile, destFile);
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return md5;
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}
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else
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{
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return null;
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}
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}
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catch (Exception e)
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{
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Utils.Debugging.Console.PrintLine("DownloadImage()发生异常: {0}", e);
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LogManager.Error("StorageHeader", e);
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return null;
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}
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}
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return null;
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}
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}
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}
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