using BeatSaber_Versions.controller;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using YamlDotNet.Serialization;
using YamlDotNet.Serialization.NamingConventions;

namespace BeatSaber_Versions
{
    public partial class VersionChanger : Form
    {
        [DllImport("kernel32.dll")]
        static extern bool CreateSymbolicLink(string lpSymlinkFileName,
        string lpTargetFileName, int dwFlags);

        private string Path = $@"{AppDomain.CurrentDomain.BaseDirectory}config.yaml";
        private VersionConfigDict Versionen = null;
        private String beatsaberfolder = @"A:\BS";

        public VersionChanger()
        {

            InitializeComponent();

            var deserializer = new DeserializerBuilder()
                .WithNamingConvention(UnderscoredNamingConvention.Instance)  // see height_in_inches in sample yml 
                .Build();

            string yml = File.ReadAllText(Path);
            var p = deserializer.Deserialize<VersionConfigDict>(yml);

            Versionen = p;
            beatsaberfolder = p.beatsaberfolder;
            foreach (var key in (p.versions).Keys)
            {
                versionListBox.Items.Add(key);
            }
            

        }

        private void folderBrowserDialog1_HelpRequest(object sender, EventArgs e)
        {

        }

        private void setFolder_Click(object sender, EventArgs e)
        {
            DialogResult folder = selectFolderForVersion.ShowDialog();
            if(folder == DialogResult.OK)
            {
                MessageBox.Show("" + selectFolderForVersion.SelectedPath);
                folderPath.Text = selectFolderForVersion.SelectedPath;
                
                
            }
            else
            {

            }

        }
        private void versionListBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            var Item = ((sender as ListBox).SelectedItem);
            if(Item != null)
            {
                folderPath.Text = Versionen.versions[(String)Item].path;
                versionName.Text = Versionen.versions[(String)Item].name;
                versionVersion.Text = Versionen.versions[(String)Item].version;
            }
        }

        private void playSelected_Click(object sender, EventArgs e)
        {
            String Target = folderPath.Text;
            if (Directory.Exists(beatsaberfolder))
            {
                if (IsSymbolic(beatsaberfolder))
                {
                    Directory.Delete(beatsaberfolder);
                    if (Directory.Exists(Target))
                    {
                        CreateSymbolicLink(beatsaberfolder, Target, 0x1);
                        setSongFolder();
                    }
                }
            }
            else
            {
                if (Directory.Exists(Target))
                {
                    CreateSymbolicLink(beatsaberfolder, Target, 0x1);
                    setSongFolder();
                }
            }
        }
        private void setSongFolder()
        {
            String songFolderConf = Versionen.beatsabersongs;
            String songFolder = beatsaberfolder+ "\\Beat Saber_Data\\CustomLevels";
            if (Directory.Exists(songFolder))
            {
                if (IsSymbolic(songFolder))
                {
                    MessageBox.Show("Is a symbolic link <3");
                }
                else
                {
                    MessageBox.Show("Is a normal folder.");
                }
            }
            else
            {
                DialogResult dialogResult = MessageBox.Show("Create symbolic link, may deduplicate your song library", "Settings", MessageBoxButtons.YesNo);
                if (dialogResult == DialogResult.Yes)
                {
                    CreateSymbolicLink(songFolder, songFolderConf, 0x1);
                    MessageBox.Show("Created symbolic link to song folder.");
                }
                else if (dialogResult == DialogResult.No)
                {
                    //do something else
                }
                
            }


        }


        private void saveSetting_Click(object sender, EventArgs e)
        {
            VersionConfig tmp = new VersionConfig();
            tmp.path = folderPath.Text;
            tmp.name = versionName.Text;    
            tmp.version = versionVersion.Text;
            if (Versionen.versions.ContainsKey((String)tmp.version))
            {

            }
            else
            {

            }
        }


        /**
         * Helper
         */
        private bool IsSymbolic(string path)
        {
            FileInfo pathInfo = new FileInfo(path);
            return pathInfo.Attributes.HasFlag(FileAttributes.ReparsePoint);
        }
    }
}