using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Diagnostics;


namespace FileSearcher
{
    public partial class MainWindow : Form
    {

        private Boolean m_closing = false;

        private delegate void FoundInfoSyncHandler(FoundInfoEventArgs e);
        private FoundInfoSyncHandler FoundInfo;

        private delegate void ThreadEndedSyncHandler(ThreadEndedEventArgs e);
        private ThreadEndedSyncHandler ThreadEnded;

        public MainWindow()
        {
            InitializeComponent();
        }

        private void MainWindow_Load(object sender, EventArgs e)
        {
            UserConfig.Load();

            searchDirTextBox.Text = UserConfig.Data.SearchDir;
            fileNameTextBox.Text = UserConfig.Data.FileName;

            this.FoundInfo += new FoundInfoSyncHandler(this_FoundInfo);
            this.ThreadEnded += new ThreadEndedSyncHandler(this_ThreadEnded);

            Searcher.FoundInfo += new Searcher.FoundInfoEventHandler(Searcher_FoundInfo);
            Searcher.ThreadEnded += new Searcher.ThreadEndedEventHandler(Searcher_ThreadEnded);
        }

        private void MainWindow_FormClosing(object sender, FormClosingEventArgs e)
        {
            m_closing = true;

            Searcher.Stop();

            if (this.WindowState != FormWindowState.Minimized)
            {
                UserConfig.Data.WindowState = (Int32)this.WindowState;
            }

            UserConfig.Data.SearchDir = searchDirTextBox.Text;

            UserConfig.Save();
        }

        private void selectSearchDirButton_Click(object sender, EventArgs e)
        {
            FolderBrowserDialog dlg = new FolderBrowserDialog();
            dlg.SelectedPath = searchDirTextBox.Text;
            dlg.ShowNewFolderButton = false;
            if (dlg.ShowDialog(this) == DialogResult.OK)
            {
                searchDirTextBox.Text = dlg.SelectedPath;
            }
        }

        private void startButton_Click(object sender, EventArgs e)
        {

            this.timer1.Enabled = true;
            this.progressBar1.Value = 100;
            this.timer1.Interval = 1;

            resultsList.Items.Clear();

            String fileNamesString = fileNameTextBox.Text;
            String[] fileNames = fileNamesString.Split(new Char[]{';'});
            List<String> validFileNames = new List<String>();
            foreach (String fileName in fileNames)
            {
                String trimmedFileName = fileName.Trim();
                if (trimmedFileName != "")
                {
                    validFileNames.Add(trimmedFileName);
                }
            }

            Encoding encoding = asciiRadioButton.Checked ? Encoding.ASCII : Encoding.Unicode;

            SearcherParams pars = new SearcherParams(   searchDirTextBox.Text.Trim(),
                                                        includeSubDirsCheckBox.Checked,
                                                        validFileNames,
                                                        newerThanCheckBox.Checked,
                                                        newerThanDateTimePicker.Value,
                                                        olderThanCheckBox.Checked,
                                                        olderThanDateTimePicker.Value,
                                                        containingCheckBox.Checked,
                                                        containingTextBox.Text.Trim(),
                                                        encoding);

            if (Searcher.Start(pars))
            {

            }
            else
            {
                MessageBox.Show("Proces je již spuštěn.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            }
        }

        private void newerThanCheckBox_CheckedChanged(object sender, EventArgs e)
        {

        }

        private void olderThanCheckBox_CheckedChanged(object sender, EventArgs e)
        {

        }

        private void containingCheckBox_CheckedChanged(object sender, EventArgs e)
        {

        }

        private void contextMenuStrip_Opening(object sender, CancelEventArgs e)
        {
            if (resultsList.SelectedItems.Count == 0)
            {
                e.Cancel = true;
            }
        }

        private void openContainingFolderContextMenuItem_Click(object sender, EventArgs e)
        {
            if (resultsList.SelectedItems.Count > 0)
            {
                String path = resultsList.SelectedItems[0].Text;

                try
                {
                    ProcessStartInfo startInfo = new ProcessStartInfo();
                    startInfo.FileName = "explorer.exe";
                    startInfo.Arguments = Path.GetDirectoryName(path);
                    Process process = new Process();
                    process.StartInfo = startInfo;
                    process.Start();
                }
                catch (Exception)
                {
                }
            }
        }

        private void resultsList_DoubleClick(object sender, EventArgs e)
        {
            if (resultsList.SelectedItems.Count > 0)
            {
                String path = resultsList.SelectedItems[0].Text;

                if (File.Exists(path))
                {
                    try
                    {
                        ProcessStartInfo startInfo = new ProcessStartInfo();
                        startInfo.FileName = path;
                        startInfo.Arguments = "";
                        Process process = new Process();
                        process.StartInfo = startInfo;
                        process.Start();
                    }
                    catch (Exception)
                    {
                    }
                }
            }
        }

        private void resultsList_Resize(object sender, EventArgs e)
        {
            resultsList.Columns[0].Width = resultsList.Width - 230;
        }

        private void Searcher_FoundInfo(FoundInfoEventArgs e)
        {
            if (!m_closing)
            {
                this.Invoke(FoundInfo, new object[] { e });
            }
        }

        private void this_FoundInfo(FoundInfoEventArgs e)
        {
            CreateResultsListItem(e.Info);
        }

        private void Searcher_ThreadEnded(ThreadEndedEventArgs e)
        {
            if (!m_closing)
            {
                this.Invoke(ThreadEnded, new object[] { e });
            }
        }

        private void this_ThreadEnded(ThreadEndedEventArgs e)
        {
            EnableButtons();

            if (!e.Success)
            {
                MessageBox.Show(e.ErrorMsg, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            }
        }

        private void EnableButtons()
        {

        }

        private void DisableButtons()
        {

        }

        public static String GetPointString(Int64 value)
        {
            String pointString = value.ToString();

            Int32 i = 3;
            while (pointString.Length > i)
            {
                pointString = pointString.Substring(0, pointString.Length - i) + "." + pointString.Substring(pointString.Length - i, i);
                i += 4;
            }

            return pointString;
        }

        private void CreateResultsListItem(FileSystemInfo info)
        {
            ListViewItem lvi = new ListViewItem();
            lvi.Text = info.FullName;

            ListViewItem.ListViewSubItem lvsi = new ListViewItem.ListViewSubItem();

            lvi.SubItems.Add(lvsi);

            lvsi = new ListViewItem.ListViewSubItem();
            lvi.SubItems.Add(lvsi);

            lvi.ToolTipText = info.FullName;

            resultsList.Items.Add(lvi);
        }

        private void searchDirTextBox_TextChanged(object sender, EventArgs e)
        {

        }

        private void resultsList_SelectedIndexChanged_1(object sender, EventArgs e)
        {

        }

        private void oProgramuToolStripMenuItem_Click(object sender, EventArgs e)
        {
            System.Windows.Forms.MessageBox.Show("Autor: (C) Copyright 2012 Edison", "O Programu", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }

        private void zavřítToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            SaveFileDialog dlg = new SaveFileDialog();
            dlg.Filter = "Playlistové soubory|*.lst|Textové soubory|*.txt";
            dlg.FilterIndex = 1;
            dlg.FileName = UserConfig.Data.ResultsFilePath;
            if (dlg.ShowDialog(this) == DialogResult.OK)
            {
                textBox1.Text = dlg.FileName;
                UserConfig.Data.ResultsFilePath = dlg.FileName;

                try
                {
                    FileStream fs = new FileStream(dlg.FileName, FileMode.Create, FileAccess.Write);
                    StreamWriter sw = new StreamWriter(fs);

                    foreach (ListViewItem lvi in resultsList.Items)
                    {
                        bool bFirstLvsi = true;
                        foreach (ListViewItem.ListViewSubItem lvsi in lvi.SubItems)
                        {
                            if (bFirstLvsi)
                            {
                                bFirstLvsi = false;
                                sw.Write(lvsi.Text);
                            }
                            else
                            {
                                sw.Write(lvsi.Text);
                            }
                        }
                    }

                    sw.Close();
                    fs.Close();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                }
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (this.progressBar1.Value < 100)
            {
                this.progressBar1.Value++;
                if (this.progressBar1.Value == 100)
                {
                    this.timer1.Enabled = false;
                }
            }
        }
    }
}