public override async Task Prepare(DataContainer dataContainer)
{
// Delete old data
if (Reload)
{
Directory.Delete(Folder, true);
}
// Create folder
Directory.CreateDirectory(Folder);
// Inernal data
_InternalData internalData = new _InternalData();
// Draw header
base.DrawHeader();
// Download
await Download(dataContainer.Products);
// Parse
Parse(internalData);
// SeDeSerialize
Cache(dataContainer, internalData);
// End info
Console.WriteLine();
}
private void Cache(DataContainer dataContainer, _InternalData internalData)
{
string prefix = "3/3 Caching...";
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, 0), ConsoleColor.Gray);
try
{
// Serialize or deserialize
_Cache cache = null;
if (Reload || !File.Exists(SerializedFile))
{
cache = new _Cache(internalData);
Serializer.Serialize(SerializedFile, cache);
}
else
{
cache = (_Cache)Serializer.Deserialize(SerializedFile);
}
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, 50), ConsoleColor.Gray);
int drawEvery = Utils.PercentIntervalByLength(cache.Name.Count * 2);
// Save to datacontainer
for (int i = 0; i < cache.Name.Count; ++i)
{
// Create forex data
_WikiTrendsData wtd = new _WikiTrendsData()
{
Value = cache.Value[i]
};
// Add to data container
dataContainer.GetEvent(new DateTime(cache.Date[i])).WikiTrendsDatas.Add(cache.Name[i], wtd);
if (i % drawEvery == 0)
{
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, 50 + (double)i / cache.Name.Count * 50), ConsoleColor.Gray);
}
}
}
catch (Exception ex)
{
Console.WriteLine();
Utils.DrawMessage("", ex.Message, ConsoleColor.Red);
Console.WriteLine();
System.Environment.Exit(1);
}
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, 100), ConsoleColor.Green);
Console.WriteLine();
}
public _Cache(_InternalData internalData)
{
Name = new List <string>();
Date = new List <long>();
Value = new List <double>();
for (int i = 0; i < internalData.Events.Count; ++i)
{
Name.Add(internalData.Events[i].Name);
Date.Add(internalData.Events[i].Date.Ticks);
Value.Add(internalData.Events[i].Value);
}
}
private void Parse(_InternalData internalData)
{
string prefix = "2/3 Parsing...";
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, 0), ConsoleColor.Gray);
// Files to parse
string[] files = Directory.GetFiles(Folder).Where(x => x.Contains(".csv")).ToArray();
// Count when we update progress bar
int drawEvery = Utils.PercentIntervalByLength(files.Length);
// Download
try
{
if (Reload || !File.Exists(SerializedFile))
{
for (int i = 0; i < files.Length; ++i)
{
// Load lines
string[] lines = File.ReadAllLines(files[i]).Skip(2).Where(x => !String.IsNullOrWhiteSpace(x)).ToArray();
// Parse lines
int previousValue = -1;
foreach (string l in lines)
{
string[] parts = l.Split(new char[] { ',', '/', '"', '.' }).Where(x => !String.IsNullOrWhiteSpace(x)).Select(x => x.Trim()).ToArray();
int year = int.Parse(parts[0]);
int month = int.Parse(parts[1]);
int day = int.Parse(parts[2]);
int value = int.Parse(parts[3]);
// Do not save first zeros, or save previous value
if (value == 0 && previousValue == -1)
{
continue;
}
else if (value == 0 && previousValue != -1)
{
value = previousValue;
}
previousValue = value;
internalData.Events.Add(new _Event()
{
Name = Path.GetFileNameWithoutExtension(files[i]).Split(new char[] { '-' })[1],
Date = new DateTime(year, month, day),
Value = value
});
}
// Update progress bar
if (i % drawEvery == 0)
{
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, (double)i / files.Length * 100.0), ConsoleColor.Gray);
}
}
}
}
catch (Exception ex)
{
Console.WriteLine();
Utils.DrawMessage("", ex.Message, ConsoleColor.Red);
Console.WriteLine();
System.Environment.Exit(1);
}
Utils.DrawMessage(prefix, Utils.CreateProgressBar(Utils.ProgressBarLength, 100), ConsoleColor.Green);
Console.WriteLine();
}
