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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core.Commands;
using Tango.Logging;
using Tango.SharedUI;
using Tango.SharedUI.Components;
using Microsoft.WindowsAPICodePack.Dialogs;
using System.ComponentModel;
using System.Windows.Data;
using System.Diagnostics;
using System.IO;
using Tango.LogViewer.UI.LogViewerFileParser;
using System.Globalization;
namespace Tango.LogViewer.UI.ViewModels
{
public class MainViewVM: ViewModel
{
private LogViewerManager _logViewerManager;
#region Properties
public SelectedObjectCollection<LogCategory> SelectedLogCategories { get; set; }
private TimeSpan? _endSelectedTime;
/// <summary>
/// Gets or sets the end selected time of time picker.
/// </summary>
public TimeSpan? EndSelectedTime
{
get { return _endSelectedTime; }
set
{
_endSelectedTime = value;
RaisePropertyChangedAuto();
ApplyLogsFilter();
}
}
private TimeSpan? _startSelectedTime;
/// <summary>
/// Gets or sets the start selected time of time picker.
/// </summary>
public TimeSpan? StartSelectedTime
{
get { return _startSelectedTime; }
set { _startSelectedTime = value;
RaisePropertyChangedAuto();
ApplyLogsFilter();
}
}
private String _filter;
/// <summary>
/// Gets or sets the filter for log message.
/// </summary>
public String Filter
{
get { return _filter; }
set
{
_filter = value;
RaisePropertyChangedAuto();
ApplyLogsFilter();
}
}
private ObservableCollection<LogItemBase> _logs;
/// <summary>
/// Gets or sets the collection of LogItemBase after parsing log files.
/// </summary>
public ObservableCollection<LogItemBase> Logs
{
get { return _logs; }
set { _logs = value; RaisePropertyChangedAuto(); }
}
private ICollectionView _logsViewSource;
/// <summary>
/// Wrapper around the Logs collection that provides filtering
/// </summary>
public ICollectionView LogsViewSource
{
get { return _logsViewSource; }
set { _logsViewSource = value; RaisePropertyChangedAuto(); }
}
private LogItemBase _selectedLog;
/// <summary>
/// Gets or sets the selected log.
/// </summary>
public LogItemBase SelectedLog
{
get { return _selectedLog; }
set { _selectedLog = value; RaisePropertyChangedAuto(); Message = _selectedLog != null ? _selectedLog.Message : ""; }
}
private string _fileName;
/// <summary>
/// Gets or sets the full path of the open file to display in Status bar.
/// </summary>
public string FileName
{
get { return _fileName; }
set { _fileName = value; RaisePropertyChangedAuto(); }
}
private int _countOfSet;
/// <summary>
/// Gets or sets the count of file set to display in Status bar.
/// </summary>
public int CountOfSet
{
get { return _countOfSet; }
set { _countOfSet = value; RaisePropertyChangedAuto(); }
}
private string _message;
/// <summary>
/// Gets the message of selected log item to display in right panel.
/// </summary>
public string Message
{
get { return _message; }
set{ _message = value; RaisePropertyChangedAuto(); }
}
private bool _isEmbeddedLog;
public bool IsEmbeddedLog
{
get { return _isEmbeddedLog; }
set { _isEmbeddedLog = value; RaisePropertyChangedAuto(); }
}
private bool _isSet;
/// <summary>
/// Gets or sets a value indicating whether set of files.
/// </summary>
public bool IsSet
{
get { return _isSet; }
set { _isSet = value; RaisePropertyChangedAuto(); }
}
private bool _loading;
public bool Loading
{
get { return _loading; }
set { _loading = value; RaisePropertyChangedAuto(); }
}
public CultureInfo Culture { get; set; }
#endregion
public RelayCommand OpeFileLogCommand { get; set; }
#region Constructors
public MainViewVM()
{
Culture = new CultureInfo("he-IL");
SelectedLogCategories = new SelectedObjectCollection<LogCategory>(new ObservableCollection<LogCategory>()
{
LogCategory.Info,
LogCategory.Warning,
LogCategory.Error,
LogCategory.Critical,
LogCategory.Debug,
}, new ObservableCollection<LogCategory>()
{
LogCategory.Info,
LogCategory.Warning,
LogCategory.Error,
LogCategory.Critical,
LogCategory.Debug,
});
_logViewerManager = new LogViewerManager();
IsSet = false;
IsEmbeddedLog = false;
Loading = false;
Clear();
OpeFileLogCommand = new RelayCommand(OpenLogFile);
SelectedLogCategories.SynchedSource.CollectionChanged += (_, __) =>
{
ApplyLogsFilter();
};
}
#endregion
#region Loading
/// <summary>
/// Clears the all filters. Set filter properties to init state.
/// </summary>
private void Clear()
{
FileName = "";
StartSelectedTime = TimeSpan.Zero;
EndSelectedTime = TimeSpan.Zero;
Filter = "";
SelectedLog = null;
SelectedLogCategories.SynchedSource= SelectedLogCategories.Source;
CountOfSet = 0;
IsSet = false;
if (Logs != null)
{
Logs.Clear();
RaisePropertyChanged("Logs");
}
}
/// <summary>
/// Opens the log file from menu.
/// </summary>
private void OpenLogFile()
{
var dialog = new CommonOpenFileDialog()
{
Multiselect = false,
EnsureFileExists = true,
};
dialog.Filters.Add(new CommonFileDialogFilter("Log files", "*.log"));
CommonFileDialogResult result = dialog.ShowDialog();
if (result == CommonFileDialogResult.Ok)
{
LoadLogFile(dialog.FileName);
}
}
/// <summary>
/// Loads the log file from menu or command line.
/// </summary>
public async void LoadLogFile(String fileName)
{
Clear();
Loading = true;
_logViewerManager.InitLogFile(fileName);
List<LogItemBase> logs = new List<LogItemBase>();
await Task.Factory.StartNew(() =>
{
logs.AddRange(_logViewerManager.Parse());
});
CountOfSet = _logViewerManager.CountOfSet;
IsSet = CountOfSet > 0 ? true : false;
IsEmbeddedLog = _logViewerManager.IsEmbeddedLog;
FileName = _logViewerManager.FileName;
Logs = new ObservableCollection<LogItemBase>(logs);
LogsViewSource = CollectionViewSource.GetDefaultView(Logs);
ApplyLogsFilter();
Loading = false;
}
#endregion
#region Filtering
/// <summary>
/// Applies the all filters( time, categories,filter massage) to view.
/// </summary>
private void ApplyLogsFilter()
{
if (LogsViewSource != null)
{
LogsViewSource.Filter = (x) =>
{
LogItemBase log = x as LogItemBase;
return (SelectedLogCategories.SynchedSource.Contains(log.Category) && (String.IsNullOrWhiteSpace(Filter) || log.Message.ToLower().Contains(Filter.ToLower()))
&& (StartSelectedTime == null || StartSelectedTime== TimeSpan.Zero || log.TimeStamp.TimeOfDay >= StartSelectedTime) && (EndSelectedTime == null || EndSelectedTime==TimeSpan.Zero || log.TimeStamp.TimeOfDay <= EndSelectedTime));
};
}
}
#endregion
}
}
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