#region Usings
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Linq;
#endregion

#region XML Types
public enum XMLTypes
{
    Token,
    Bool,
    Float,
    String,
    Vector2Int16,
    Int
}
#endregion

#region Roblox XML Parser
public static class RobloxXML
{
    public static void EditRenderSettings(XDocument doc, string setting, string value, XMLTypes type)
    {
        var v = from nodes in doc.Descendants("Item")
                where nodes.Attribute("class").Value == "RenderSettings"
                select nodes;

        foreach (var item in v)
        {
            var v2 = from nodes in item.Descendants((type != XMLTypes.Vector2Int16 ? type.ToString().ToLower() : "Vector2int16"))
                     where nodes.Attribute("name").Value == setting
                     select nodes;

            foreach (var item2 in v2)
            {
                if (type != XMLTypes.Vector2Int16)
                {
                    item2.Value = value;
                }
                else 
                {
                    string[] vals = value.Split('x');

                    var v3 = from nodes in item2.Descendants("X")
                             select nodes;

                    foreach (var item3 in v3)
                    {
                        item3.Value = vals[0];
                    }

                    var v4 = from nodes in item2.Descendants("Y")
                             select nodes;

                    foreach (var item4 in v4)
                    {
                        item4.Value = vals[1];
                    }
                }
            }
        }
    }

    public static bool IsRenderSettingStringValid(XDocument doc, string setting, XMLTypes type)
    {
        if (type != XMLTypes.String)
            return false;

        var v = from nodes in doc.Descendants("Item")
                where nodes.Attribute("class").Value == "RenderSettings"
                select nodes;

        foreach (var item in v)
        {
            var v2 = from nodes in item.Descendants(type.ToString().ToLower())
                     where nodes.Attribute("name").Value == setting
                     select nodes;

            foreach (var item2 in v2)
            {
                return true;
            }
        }

        return false;
    }

    public static string GetRenderSettings(XDocument doc, string setting, XMLTypes type)
    {
        var v = from nodes in doc.Descendants("Item")
                where nodes.Attribute("class").Value == "RenderSettings"
                select nodes;

        foreach (var item in v)
        {
            var v2 = from nodes in item.Descendants((type != XMLTypes.Vector2Int16 ? type.ToString().ToLower() : "Vector2int16"))
                     where nodes.Attribute("name").Value == setting
                     select nodes;

            foreach (var item2 in v2)
            {
                if (type != XMLTypes.Vector2Int16)
                {
                    return item2.Value;
                }
                else
                {
                    string ValX = "";
                    string ValY = "";

                    var v3 = from nodes in item2.Descendants("X")
                             select nodes;

                    foreach (var item3 in v3)
                    {
                        ValX =  item3.Value;
                    }

                    var v4 = from nodes in item2.Descendants("Y")
                             select nodes;

                    foreach (var item4 in v4)
                    {
                        ValY = item4.Value;
                    }

                    return ValX + "x" + ValY;
                }
            }
        }

        return "";
    }

    public static void DownloadFilesFromNode(string url, string path, string fileext, string id)
    {
        if (!string.IsNullOrWhiteSpace(id))
        {
            Downloader download = new Downloader(url, id);
            download.InitDownload(path, fileext, "", true, false);
            if (download.getDownloadOutcome().Contains("Error"))
            {
                throw new IOException(download.getDownloadOutcome());
            }
        }
    }

    public static string GetURLInNodes(XDocument doc, string itemClassValue, string itemIdValue, string url)
    {
        var v = from nodes in doc.Descendants("Item")
                where nodes.Attribute("class").Value == itemClassValue
                select nodes;

        foreach (var item in v)
        {
            var v2 = from nodes in item.Descendants("Content")
                     where nodes.Attribute("name").Value == itemIdValue
                     select nodes;

            foreach (var item2 in v2)
            {
                var v3 = from nodes in item2.Descendants("url")
                         select nodes;

                foreach (var item3 in v3)
                {
                    if (!item3.Value.Contains("rbxassetid"))
                    {
                        if (!item3.Value.Contains("rbxasset"))
                        {
                            string oldurl = item3.Value;
                            string urlFixed = GlobalFuncs.FixURLString(oldurl, url);
                            string peram = "id=";

                            if (urlFixed.Contains(peram))
                            {
                                return urlFixed;
                            }
                        }
                    }
                    else
                    {
                        string oldurl = item3.Value;
                        string rbxassetid = "rbxassetid://";
                        string urlFixed = url + oldurl.After(rbxassetid);
                        string peram = "id=";

                        if (urlFixed.Contains(peram))
                        {
                            return urlFixed;
                        }
                    }
                }
            }
        }

        return "";
    }

    public static string RemoveInvalidXmlChars(string content)
    {
        return new string(content.Where(ch => XmlConvert.IsXmlChar(ch)).ToArray());
    }

    public static string ReplaceHexadecimalSymbols(string txt)
    {
        string r = "[\x00-\x08\x0B\x0C\x0E-\x1F]";
        return Regex.Replace(txt, r, "", RegexOptions.Compiled);
    }
}
#endregion