/// <summary>
/// Copies operation log from AppData to Desktop.
/// </summary>
public static async Task CopyOperationAsync()
{
var buffer = new StringBuilder();
try
{
foreach (var fileName in await GetOperationFileNamesAsync())
{
buffer.Append(await AppDataService.ReadAsync(fileName));
}
}
catch (Exception ex)
{
Trace.WriteLine("Failed to read log from AppData." + Environment.NewLine
+ ex);
}
if (buffer.Length == 0)
{
return;
}
if (MessageBox.Show(
Resources.CopyOperationMessage,
ProductInfo.Title,
MessageBoxButton.OKCancel,
MessageBoxImage.Information,
MessageBoxResult.OK) != MessageBoxResult.OK)
{
return;
}
RecordToDesktop(OperationFileName, buffer.ToString());
}
private static async Task <string[]> GetOperationFileNamesAsync()
{
var expiryDate = DateTimeOffset.Now.Date.AddDays(-ExpiryDays);
var fileNamePattern = new Regex(@"^operation(?<date>[0-9]{8}).log$");
var fileNames = new List <string>();
foreach (var fileName in AppDataService.EnumerateFileNames("*.log").OrderBy(x => x))
{
var match = fileNamePattern.Match(fileName);
if (match.Success)
{
if (DateTimeOffset.TryParseExact(match.Groups["date"].Value,
DateFormat,
null,
DateTimeStyles.None,
out DateTimeOffset fileDate) &&
(expiryDate <= fileDate))
{
fileNames.Add(fileName);
continue;
}
AppDataService.Delete(fileName);
}
}
#region Conversion
var content = await AppDataService.ReadAsync(OperationFileName);
if (content is not null)
{
if (fileNames.Any())
{
content += await AppDataService.ReadAsync(fileNames.First());
await AppDataService.WriteAsync(fileNames.First(), append : false, content);
AppDataService.Delete(OperationFileName);
}
else
{
var fileName = GetOperationDateFileName(DateTimeOffset.Now);
AppDataService.Rename(OperationFileName, fileName);
fileNames.Add(fileName);
}
}
#endregion
return(fileNames.ToArray());
}
private static void RecordToAppData(string fileName, string content, int capacity = 1)
{
try
{
AppDataService.AssureFolder();
var appDataFilePath = Path.Combine(AppDataService.FolderPath, fileName);
UpdateContent(appDataFilePath, content, capacity);
}
catch (Exception ex)
{
Trace.WriteLine("Failed to record log to AppData." + Environment.NewLine
+ ex);
}
}
/// <summary>
/// Records operation log to AppData.
/// </summary>
/// <param name="content">Content</param>
public static async Task RecordOperationAsync(string content)
{
content = ComposeHeader() + Environment.NewLine
+ content + Environment.NewLine + Environment.NewLine;
var fileName = GetOperationDateFileName(DateTimeOffset.Now);
try
{
await AppDataService.WriteAsync(fileName, append : true, content);
}
catch (Exception ex)
{
Trace.WriteLine("Failed to record log to AppData." + Environment.NewLine
+ ex);
}
}