using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Threading.Tasks;
using System.Windows.Forms;
using BookmarkManager.Services;
using bzit.bomg.Models;
using RyzStudio.Windows.Forms;
using RyzStudio.Windows.ThemedForms;

namespace FizzyLauncher
{
    public class AddBatchPageForm : Form
    {
        private System.Windows.Forms.Label label1;


        private readonly WebProvider _webProvider;
        private string _rootPath;
        private bool _isBusy = false;
        private THorizontalSeparator tHorizontalSeparator3;
        private ThButton button3;
        private ThProgressBar progressBar2;
        private RyzStudio.Windows.ThemedForms.Composite.DialogFooter dialogFooter1;
        private ThToolbarMemoBox memoBox1;
        private List<BookmarkModel> _result = new List<BookmarkModel>();
        private bool _requestCancel = false;


        public AddBatchPageForm(string rootPath)
        {
            InitializeComponent();

            UISetup.Dialog(this);

            _result = new List<BookmarkModel>();

            _webProvider = new WebProvider();
            _webProvider.IgnoreSSL = true;

            _rootPath = rootPath;
        }

        private void InitializeComponent()
        {
            label1 = new Label();
            tHorizontalSeparator3 = new THorizontalSeparator();
            button3 = new ThButton();
            progressBar2 = new ThProgressBar();
            dialogFooter1 = new RyzStudio.Windows.ThemedForms.Composite.DialogFooter();
            memoBox1 = new ThToolbarMemoBox();
            SuspendLayout();
            //
            // label1
            //
            label1.AutoSize = true;
            label1.BackColor = System.Drawing.Color.Transparent;
            label1.ForeColor = System.Drawing.SystemColors.ControlText;
            label1.Location = new System.Drawing.Point(10, 20);
            label1.Margin = new Padding(0);
            label1.Name = "label1";
            label1.Padding = new Padding(0, 8, 0, 0);
            label1.Size = new System.Drawing.Size(185, 23);
            label1.TabIndex = 153;
            label1.Text = "Add pages (one URL on each line)";
            label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
            //
            // tHorizontalSeparator3
            //
            tHorizontalSeparator3.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
            tHorizontalSeparator3.AutoScrollMargin = new System.Drawing.Size(0, 0);
            tHorizontalSeparator3.AutoScrollMinSize = new System.Drawing.Size(0, 0);
            tHorizontalSeparator3.BackColor = System.Drawing.Color.Transparent;
            tHorizontalSeparator3.Location = new System.Drawing.Point(10, 321);
            tHorizontalSeparator3.Margin = new Padding(0, 10, 0, 0);
            tHorizontalSeparator3.MaximumSize = new System.Drawing.Size(4920, 2);
            tHorizontalSeparator3.MinimumSize = new System.Drawing.Size(0, 22);
            tHorizontalSeparator3.Name = "tHorizontalSeparator3";
            tHorizontalSeparator3.Size = new System.Drawing.Size(424, 22);
            tHorizontalSeparator3.TabIndex = 207;
            tHorizontalSeparator3.TabStop = false;
            //
            // button3
            //
            button3.ActiveImage = null;
            button3.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
            button3.BackColor = System.Drawing.Color.Transparent;
            button3.EnableMenuOnClick = false;
            button3.EnableReactiveVisual = true;
            button3.HoverImage = null;
            button3.IdleImage = null;
            button3.LabelText = "&Add Pages";
            button3.Location = new System.Drawing.Point(306, 393);
            button3.Name = "button3";
            button3.Size = new System.Drawing.Size(128, 32);
            button3.TabIndex = 209;
            button3.TabStop = false;
            button3.MouseClick += button3_MouseClick;
            //
            // progressBar2
            //
            progressBar2.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
            progressBar2.BackColor = System.Drawing.Color.Transparent;
            progressBar2.BarColour = System.Drawing.Color.FromArgb(79, 193, 203);
            progressBar2.BarTextColour = System.Drawing.Color.Black;
            progressBar2.EnableReactiveVisual = false;
            progressBar2.Font = new System.Drawing.Font("Segoe UI", 9F);
            progressBar2.Location = new System.Drawing.Point(10, 353);
            progressBar2.Maximum = 100;
            progressBar2.Minimum = 0;
            progressBar2.Name = "progressBar2";
            progressBar2.ProgressText = "50/100";
            progressBar2.ShowProgressText = true;
            progressBar2.Size = new System.Drawing.Size(424, 20);
            progressBar2.TabIndex = 210;
            progressBar2.TabStop = false;
            progressBar2.Value = 50;
            //
            // dialogFooter1
            //
            dialogFooter1.BackColor = System.Drawing.Color.FromArgb(240, 240, 240);
            dialogFooter1.Button1Text = "&Close";
            dialogFooter1.Dialog = this;
            dialogFooter1.Dock = DockStyle.Bottom;
            dialogFooter1.IsBusy = false;
            dialogFooter1.Location = new System.Drawing.Point(0, 437);
            dialogFooter1.Name = "dialogFooter1";
            dialogFooter1.Size = new System.Drawing.Size(444, 84);
            //
            // memoBox1
            //
            memoBox1.AllowDrop = true;
            memoBox1.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
            memoBox1.BackColor = System.Drawing.Color.Transparent;
            memoBox1.ClearedValue = "";
            memoBox1.EnableReactiveVisual = true;
            memoBox1.Font = new System.Drawing.Font("Segoe UI", 9F);
            memoBox1.Location = new System.Drawing.Point(10, 53);
            memoBox1.Name = "memoBox1";
            memoBox1.ReadOnly = false;
            memoBox1.ScrollBars = ScrollBars.Vertical;
            memoBox1.Size = new System.Drawing.Size(424, 258);
            memoBox1.TabIndex = 211;
            memoBox1.TabStop = false;
            memoBox1.WordWrap = false;
            //
            // AddBatchPageForm
            //
            AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
            AutoScaleMode = AutoScaleMode.Font;
            BackColor = System.Drawing.Color.White;
            ClientSize = new System.Drawing.Size(444, 521);
            Controls.Add(memoBox1);
            Controls.Add(dialogFooter1);
            Controls.Add(progressBar2);
            Controls.Add(button3);
            Controls.Add(tHorizontalSeparator3);
            Controls.Add(label1);
            KeyPreview = true;
            MinimumSize = new System.Drawing.Size(460, 560);
            Name = "AddBatchPageForm";
            Text = "Add Pages (Batch)";
            ResumeLayout(false);
            PerformLayout();
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            memoBox1.Text = string.Empty;

            progressBar2.Minimum = 0;
            progressBar2.Value = 0;
            progressBar2.Maximum = memoBox1.Lines?.Length ?? 0;

            memoBox1.Focus();
        }

        protected override void OnClosing(CancelEventArgs e)
        {
            base.OnClosing(e);

            if (this.IsBusy)
            {
                e.Cancel = true;
            }
        }


        public List<BookmarkModel> Result
        {
            get => _result;
            private set => _result = value;
        }


        protected bool IsBusy
        {
            get => _isBusy;
            set
            {
                _isBusy = value;

                UIControl.SetEnable(memoBox1, !this.IsBusy);
                UIControl.Invoke(button3, (x) =>
                {
                    button3.LabelText = (this.IsBusy ? "&Stop" : "&Add Pages");
                });

                dialogFooter1.IsBusy = _isBusy;
            }
        }

        private async void button3_MouseClick(object sender, MouseEventArgs e)
        {
            await Task.Run(async () =>
            {
                if (this.IsBusy)
                {
                    _requestCancel = true;
                    return;
                }

                this.IsBusy = true;

                this.Result = new List<BookmarkModel>();

                progressBar2.Minimum = 0;
                progressBar2.Value = 0;
                progressBar2.Maximum = memoBox1.Lines?.Length ?? 0;

                foreach (var item in memoBox1.Lines ?? new string[0])
                {
                    progressBar2.Value++;

                    if (string.IsNullOrWhiteSpace(item))
                    {
                        continue;
                    }

                    var newModel = new BookmarkModel();
                    newModel.Address = item;
                    newModel.Path = _rootPath;

                    if (_requestCancel)
                    {
                        break;
                    }

                    newModel = await UpdateBookmark(newModel, true, true);
                    if (newModel == null)
                    {
                        continue;
                    }

                    if (_requestCancel)
                    {
                        break;
                    }

                    this.Result.Add(newModel);
                }

                //_requestCancel = false;

                this.IsBusy = false;

                if (!_requestCancel)
                {
                    this.DialogResult = DialogResult.OK;

                    UIControl.Close(this);
                }

                _requestCancel = false;
            });
        }

        private async Task<BookmarkModel> UpdateBookmark(BookmarkModel model, bool updateTitle, bool updateDescription)
        {
            if (string.IsNullOrWhiteSpace(model.Address))
            {
                return null;
            }

            if (!model.Address.StartsWith("http://", StringComparison.CurrentCultureIgnoreCase) && !model.Address.StartsWith("https://", StringComparison.CurrentCultureIgnoreCase))
            {
                model.Address = "http://" + model.Address;
            }

            var document = await _webProvider.RetrieveHtmlDocument(model.Address);
            if (document == null)
            {
                return null;
            }

            if (updateTitle)
            {
                model.Title = _webProvider.ParseTitle(document);
            }

            if (updateDescription)
            {
                model.Description = _webProvider.ParseDescription(document);
            }

            return model;
        }

    }
}