using ByamlExt.Byaml;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using Syroot.BinaryData;
using EditorCore;
using Switch_Toolbox.Library.Forms;
using Switch_Toolbox.Library;
using ByamlExt;
using FirstPlugin.Forms;

namespace FirstPlugin
{
    //Editor from https://github.com/exelix11/EditorCore/blob/872d210f85ec0409f8a6ac3a12fc162aaf4cd90c/FileFormatPlugins/ByamlLib/Byaml/ByamlViewer.cs
    //Added as an editor form for saving data back via other plugins
    public partial class ByamlEditor : STForm, IFIleEditor
    {
        public IFileFormat FileFormat;

        public List<IFileFormat> GetFileFormats()
        {
            return new List<IFileFormat>() { FileFormat };
        }

        public ByteOrder byteOrder;
        public dynamic byml;
        public string FileName = "";
        bool pathSupport;
        ushort bymlVer;

        bool useMuunt = true;

        public ByamlEditor(System.Collections.IEnumerable by, bool _pathSupport, ushort _ver, ByteOrder defaultOrder = ByteOrder.LittleEndian, bool IsSaveDialog = false, BYAML byaml = null)
        {
            InitializeComponent();

            treeView1.BackColor = FormThemes.BaseTheme.FormBackColor;
            treeView1.ForeColor = FormThemes.BaseTheme.FormForeColor;

            if (!IsSaveDialog)
            {
                stButton1.Visible = false;
                stButton2.Visible = false;
                stPanel1.Dock = DockStyle.Fill;
            }

            if (byaml.FileName == "course_muunt.byaml" && useMuunt)
            {
                pathSupport = true;

                stPanel1.Controls.Remove(treeView1);

                TurboMunntEditor editor = new TurboMunntEditor();
                editor.Dock = DockStyle.Fill;
                editor.LoadCourseInfo(by, byaml.FilePath);
                stPanel1.Controls.Add(editor);
                return;
            }


            byteOrder = defaultOrder;
            FileName = byaml.FileName;
            byml = by;
            pathSupport = _pathSupport;
            bymlVer = _ver;

            if (byml == null) return;
            ParseBymlFirstNode();
        }

        void ParseBymlFirstNode()
        {
            //the first node should always be a dictionary node
            if (byml is Dictionary<string, dynamic>)
            {
                parseDictNode(byml, treeView1.Nodes);
            }
            else if (byml is List<dynamic>)
            {
                if (((List<dynamic>)byml).Count == 0)
                {
                    MessageBox.Show("This byml is empty");
                }
                parseArrayNode(byml, treeView1.Nodes);
            }
            else if (byml is List<ByamlPathPoint>)
            {
                MessageBox.Show("Unsupported root node");
            }
            else throw new Exception($"Unsupported root node type {byml.GetType()}");
        }

        Stream saveStream = null;
        public ByamlEditor(System.Collections.IEnumerable by, bool _pathSupport, Stream saveTo, ushort _ver, ByteOrder defaultOrder = ByteOrder.LittleEndian, bool IsSaveDialog = false, BYAML byaml = null) : this(by, _pathSupport, _ver, defaultOrder, IsSaveDialog, byaml)
        {

            treeView1.BackColor = FormThemes.BaseTheme.FormBackColor;
            treeView1.ForeColor = FormThemes.BaseTheme.FormForeColor;

            if (!IsSaveDialog)
            {
                stButton1.Visible = false;
                stButton2.Visible = false;
                stPanel1.Dock = DockStyle.Fill;
            }

            saveStream = saveTo;
            saveToolStripMenuItem.Visible = saveTo != null && saveStream.CanWrite;
        }

        //get a reference to the value to change
        class EditableNode
        {
            public Type type { get { return Node[Index].GetType(); } }
            dynamic Node;
            dynamic Index;

            public dynamic Get() { return Node[Index]; }
            public void Set(dynamic value) { Node[Index] = value; }

            public string GetTreeViewString()
            {
                if (Index is int)
                    return Node[Index].ToString();
                else
                    return Index + " : " + Node[Index].ToString();
            }

            public EditableNode(dynamic _node, dynamic _index)
            {
                Node = _node;
                Index = _index;
            }
        }

        void parseDictNode(IDictionary<string, dynamic> node, TreeNodeCollection addto)
        {
            foreach (string k in node.Keys)
            {
                TreeNode current = addto.Add(k);
                if (node[k] is IDictionary<string, dynamic>)
                {
                    current.Text += " : <Dictionary>";
                    current.Tag = node[k];
                    current.Nodes.Add("✯✯dummy✯✯"); //a text that can't be in a byml
                }
                else if (node[k] is IList<dynamic>)
                {
                    current.Text += " : <Array>";
                    current.Tag = ((IList<dynamic>)node[k]);
                    current.Nodes.Add("✯✯dummy✯✯");
                }
                else if (node[k] is IList<ByamlPathPoint>)
                {
                    current.Text += " : <PathPointArray>";
                    current.Tag = ((IList<ByamlPathPoint>)node[k]);
                    parsePathPointArray(node[k], current.Nodes);
                }
                else
                {
                    current.Text = current.Text + " : " + (node[k] == null ? "<NULL>" : node[k].ToString());
                    if (node[k] != null) current.Tag = new EditableNode(node, k);
                }
            }
        }

        void parsePathPointArray(IList<ByamlPathPoint> list, TreeNodeCollection addto)
        {
            int index = 0;
            foreach (var k in list)
            {
                index++;
                var n = addto.Add(k == null ? "<NULL>" : k.ToString());
                if (k != null) n.Tag = new EditableNode(list, index);
            }
        }

        void parseArrayNode(IList<dynamic> list, TreeNodeCollection addto)
        {
            int index = 0;
            foreach (dynamic k in list)
            {
                if (k is IDictionary<string, dynamic>)
                {
                    TreeNode current = addto.Add("<Dictionary>");
                    current.Tag = ((IDictionary<string, dynamic>)k);
                    current.Nodes.Add("✯✯dummy✯✯");
                }
                else if (k is IList<dynamic>)
                {
                    TreeNode current = addto.Add("<Array>");
                    current.Tag = ((IList<dynamic>)k);
                    current.Nodes.Add("✯✯dummy✯✯");
                }
                else if (k is IList<ByamlPathPoint>)
                {
                    TreeNode current = addto.Add("<PathPointArray>");
                    current.Tag = ((IList<ByamlPathPoint>)k);
                    parsePathPointArray(k, current.Nodes);
                }
                else
                {
                    var n = addto.Add(k == null ? "<NULL>" : k.ToString());
                    if (k != null) n.Tag = new EditableNode(list, index);
                }
                index++;
            }
        }

        private void BeforeExpand(object sender, TreeViewCancelEventArgs e)
        {
            if (e.Node.Tag != null && e.Node.Nodes.Count == 1 && e.Node.Nodes[0].Text == "✯✯dummy✯✯")
            {
                e.Node.Nodes.Clear();
                if (((dynamic)e.Node.Tag).Count == 0)
                {
                    e.Node.Nodes.Add("<Empty>");
                    return;
                }
                if (e.Node.Tag is IList<dynamic>) parseArrayNode((IList<dynamic>)e.Node.Tag, e.Node.Nodes);
                else if (e.Node.Tag is IDictionary<string, dynamic>) parseDictNode((IDictionary<string, dynamic>)e.Node.Tag, e.Node.Nodes);
                else throw new Exception("WTF");
            }
        }

        private void ContextMenuOpening(object sender, CancelEventArgs e)
        {
            CopyNode.Enabled = treeView1.SelectedNode != null;
            editValueNodeMenuItem.Enabled = treeView1.SelectedNode != null && treeView1.SelectedNode.Tag is EditableNode;
        }

        private void CopyNode_Click(object sender, EventArgs e)
        {
            Clipboard.SetText(treeView1.SelectedNode.Text);
        }

        private void ByamlViewer_Load(object sender, EventArgs e)
        {

        }

        private void exportJsonToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SaveFileDialog sav = new SaveFileDialog() { Filter = "Xml file | *.xml" };
            if (sav.ShowDialog() != DialogResult.OK) return;
            File.WriteAllText(sav.FileName,
                XmlConverter.ToXml(new BymlFileData { Version = bymlVer, byteOrder = byteOrder, SupportPaths = pathSupport, RootNode = byml }));
        }

        public static void ImportFromJson()
        {

        }

        public static void OpenByml()
        {
            OpenFileDialog opn = new OpenFileDialog();
            opn.Filter = "byml file | *.byml";
            if (opn.ShowDialog() == DialogResult.OK)
            {
                OpenByml(opn.FileName, new BYAML());
            }
        }

        static bool SupportPaths()
        {
            return MessageBox.Show("Does this game support paths ?", "", MessageBoxButtons.YesNo) == DialogResult.Yes;
        }

        public static void OpenByml(string Filename, BYAML byaml) {
            OpenByml(new FileStream(Filename, FileMode.Open), byaml, Filename);
        }

        public static void OpenByml(Stream file, BYAML byaml, string FileName = "") {
            OpenByml(file, byaml, FileName, SupportPaths());
        }

        public static void OpenByml(Stream file, BYAML byaml, string FileName, bool paths) {
            OpenByml(file, byaml, FileName, paths, null, false);
        }

        public static void OpenByml(Stream file, BYAML byaml, string FileName, bool? paths, Stream saveStream, bool AsDialog)
        {
            bool _paths = paths == null ? SupportPaths() : paths.Value;
            var byml = ByamlFile.LoadN(file, _paths);
            OpenByml(byml, byaml, saveStream, AsDialog);
        }

        public static void OpenByml(BymlFileData data, BYAML byaml, Stream saveStream = null, bool AsDialog = false)
        {
            var form = new ByamlEditor(data.RootNode, data.SupportPaths, saveStream, data.Version, data.byteOrder, AsDialog, byaml);

            if (saveStream != null && saveStream.CanWrite)
            {
                saveStream.Position = 0;
                saveStream.SetLength(0);
            }
        }

        private void saveAsToolStripMenuItem_Click(object sender, EventArgs e)
        {
            SaveFileDialog sav = new SaveFileDialog() { FileName = FileName, Filter = "byml file | *.byml" };
            if (sav.ShowDialog() == DialogResult.OK)
            {
                ByamlFile.SaveN(sav.FileName,
                    new BymlFileData { Version = bymlVer, byteOrder = byteOrder, SupportPaths = pathSupport, RootNode = byml });
            }
        }

        private void editValueNodeMenuItem_Click(object sender, EventArgs e)
        {
            var node = treeView1.SelectedNode.Tag as EditableNode;
            if (node == null) return;

            if (node.Get() is ByamlPathPoint)
            {
                new BymlPathPointEditor(node.Get()).ShowDialog(); //ByamlPathPoint is a reference type
            }
            else
            {
                string value = node.Get().ToString();
                var dRes = InputDialog.Show("Enter value", $"Enter new value for the node, the value must be of type {node.type}", ref value);
                if (dRes != DialogResult.OK) return;
                if (value.Trim() == "") return;
                node.Set(ByamlTypeHelper.ConvertValue(node.type, value));
            }
            treeView1.SelectedNode.Text = node.GetTreeViewString();
        }

        private void addNodeToolStripMenuItem_Click(object sender, EventArgs e)
        {
            dynamic target = treeView1.SelectedNode == null ? byml : treeView1.SelectedNode.Tag;

            var targetNodeCollection = treeView1.SelectedNode == null ? treeView1.Nodes : treeView1.SelectedNode.Nodes;

            if (target is EditableNode)
            {
                if (treeView1.SelectedNode.Parent == null)
                {
                    target = byml;
                    targetNodeCollection = treeView1.Nodes;
                }
                else
                {
                    target = treeView1.SelectedNode.Parent.Tag;
                    targetNodeCollection = treeView1.SelectedNode.Parent.Nodes;
                }
            }

            var newProp = AddBymlPropertyDialog.newProperty(!(target is IList<dynamic>));
            if (newProp == null) return;
            bool clone = newProp.Item2 is IDictionary<string, dynamic> || newProp.Item2 is IList<dynamic>; //reference types must be manually cloned
            var toAdd = clone ? DeepCloneDictArr.DeepClone(newProp.Item2) : newProp.Item2;

            targetNodeCollection.Clear();

            if (target is IList<dynamic>)
            {
                ((IList<dynamic>)target).Insert(((IList<dynamic>)target).Count, toAdd);
                parseArrayNode((IList<dynamic>)target, targetNodeCollection);
            }
            else if (target is IDictionary<string, dynamic>)
            {
                ((IDictionary<string, dynamic>)target).Add(newProp.Item1, toAdd);
                parseDictNode((IDictionary<string, dynamic>)target, targetNodeCollection);
            }
            else throw new Exception();

        }

        private void deleteNodeToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (treeView1.SelectedNode == null)
            {
                MessageBox.Show("Select a node first");
                return;
            }

            dynamic target;
            TreeNodeCollection targetNode;
            if (treeView1.SelectedNode.Parent == null)
            {
                target = byml;
                targetNode = treeView1.Nodes;
            }
            else
            {
                target = treeView1.SelectedNode.Parent.Tag;
                targetNode = treeView1.SelectedNode.Parent.Nodes;
            }
            int index = targetNode.IndexOf(treeView1.SelectedNode);
            if (target is Dictionary<string, dynamic>)
            {
                target.Remove(((Dictionary<string, dynamic>)target).Keys.ToArray()[index]);
            }
            else
                target.RemoveAt(targetNode.IndexOf(treeView1.SelectedNode));
            targetNode.RemoveAt(index);
        }

        private void saveToolStripMenuItem_Click(object sender, EventArgs e)
        {
            saveStream.Position = 0;
            saveStream.SetLength(0);
            ByamlFile.SaveN(saveStream, new BymlFileData { Version = bymlVer, byteOrder = byteOrder, SupportPaths = pathSupport, RootNode = byml });
        }

        private void importFromXmlToolStripMenuItem_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFile = new OpenFileDialog();
            openFile.Filter = "xml file |*.xml| every file | *.*";
            if (openFile.ShowDialog() != DialogResult.OK) return;

            StreamReader t = new StreamReader(new FileStream(openFile.FileName, FileMode.Open), UnicodeEncoding.Unicode);
            treeView1.Nodes.Clear();
            byml = XmlConverter.ToByml(t.ReadToEnd()).RootNode;
            ParseBymlFirstNode();
        }
    }
}