using System;
using System.Collections.Generic;
using System.IO;
using System.Windows.Forms;
using GalaSoft.MvvmLight.Messaging;
using SD.iyeTek.App.Common.Messages;
using SD.iyeTek.App.Shell;
using SD.Shapes.Common;

namespace iyeTek.CrashReport.Sample.Winforms.CS
{
    public partial class MainForm : Form
    {
        private static readonly string DiagramAndImageFilter
            = "Diagram Files (*.sdi.xml)|*.sdi.xml|Images (*.png;)|*.png;";
       
        private static readonly string DiagramFilter
            = "Diagram Files (*.sdi.xml)|*.sdi.xml";

        private Random _random = new Random();
        private IEnumerable<IShape> _selectedShapes;

        public MainForm()
        {
            InitializeComponent();

            DesignerHost.Child = new ShellView();

            Messenger.Default.Register<SelectedShapesChangedMessage>(this, x => _selectedShapes = x.SelectedShapes);
        }

        private void SaveDiagramButton_Click(object sender, EventArgs e)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog { Filter = DiagramAndImageFilter };

            if (saveFileDialog.ShowDialog() == DialogResult.OK)
            {
                FileInfo file = new FileInfo(saveFileDialog.FileName);

                using (Stream stream = saveFileDialog.OpenFile())
                {
                    UserSavingDiagramMessage message = new UserSavingDiagramMessage(stream) { Extension = file.Extension };

                    Messenger.Default.Send(message);
                }
            }
        }

        private void OpenDiagramButton_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFileDialog = new OpenFileDialog { Filter = DiagramFilter };

            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                FileInfo file = new FileInfo(openFileDialog.FileName);

                using (Stream stream = openFileDialog.OpenFile())
                {
                    UserOpeningDiagramMessage message = new UserOpeningDiagramMessage(stream);

                    Messenger.Default.Send(message);
                }
            }
        }

        private void RandomFontSizeButton_Click(object sender, EventArgs e)
        {
            double fontSize = 10 + _random.NextDouble() * 10;

            if (_selectedShapes != null)
            {
                foreach (IShape shape in _selectedShapes)
                {
                    shape.Text = "Text";

                    shape.FontSize = fontSize;
                }
            }
        }
    }
}