using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Threading.Tasks;
using System.Windows.Forms;
using BukkuBuddy.DTOs.SaveFile;
using BukkuBuddy.Services;
using RyzStudio.Windows.Forms;
using RyzStudio.Windows.ThemedForms;

namespace BukkuBuddy.Forms
{
    public class AddMultiPageForm : Form
    {
        private Label label1;
        private RyzStudio.Windows.ThemedForms.Composite.DialogFooter dialogFooter1;
        private ThToolbarMemoBox memoBox1;
        private ThUserControl userControl1;
        private TProgressBar progressBar1;

        private readonly WebPageService _webPageService;
        private readonly string _rootPath;

        private List<App6Options.Item> result = null;
        private bool isBusy = false;


        public AddMultiPageForm(string rootPath, App6Options options)
        {
            InitializeComponent();

            UISetup.Dialog(this);

            _webPageService = new WebPageService(options.AllowUnsafeSSL, options.Timeout, options.AllowCookies, options.AllowRedirects);
            _rootPath = rootPath;
        }

        private void InitializeComponent()
        {
            label1 = new Label();
            dialogFooter1 = new RyzStudio.Windows.ThemedForms.Composite.DialogFooter();
            memoBox1 = new ThToolbarMemoBox();
            userControl1 = new ThUserControl();
            progressBar1 = new TProgressBar();
            userControl1.SuspendLayout();
            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(60, 23);
            label1.TabIndex = 153;
            label1.Text = "Addresses";
            label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
            //
            // dialogFooter1
            //
            dialogFooter1.BackColor = System.Drawing.Color.FromArgb(240, 240, 240);
            dialogFooter1.Dock = DockStyle.Bottom;
            dialogFooter1.EnableMovable = false;
            dialogFooter1.IsBusy = false;
            dialogFooter1.Location = new System.Drawing.Point(0, 451);
            dialogFooter1.Name = "dialogFooter1";
            dialogFooter1.Size = new System.Drawing.Size(384, 70);
            dialogFooter1.TabIndex = 212;
            dialogFooter1.TabStop = false;
            dialogFooter1.OnButton1Click += dialogFooter1_OnButton1Click;
            //
            // memoBox1
            //
            memoBox1.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
            memoBox1.BackColor = System.Drawing.Color.Transparent;
            memoBox1.ClearedValue = "";
            memoBox1.EnableMovable = false;
            memoBox1.Location = new System.Drawing.Point(95, 20);
            memoBox1.Name = "memoBox1";
            memoBox1.ReadOnly = false;
            memoBox1.ScrollBars = ScrollBars.Vertical;
            memoBox1.Size = new System.Drawing.Size(280, 387);
            memoBox1.TabIndex = 211;
            memoBox1.TabStop = false;
            memoBox1.WordWrap = false;
            //
            // userControl1
            //
            userControl1.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
            userControl1.BackColor = System.Drawing.Color.Transparent;
            userControl1.Controls.Add(progressBar1);
            userControl1.EnableMovable = false;
            userControl1.Location = new System.Drawing.Point(95, 417);
            userControl1.Name = "userControl1";
            userControl1.Size = new System.Drawing.Size(280, 24);
            userControl1.TabIndex = 214;
            //
            // progressBar1
            //
            progressBar1.BarColour = System.Drawing.Color.FromArgb(190, 100, 242);
            progressBar1.Dock = DockStyle.Fill;
            progressBar1.EnableMovable = false;
            progressBar1.Location = new System.Drawing.Point(3, 3);
            progressBar1.Maximum = 100;
            progressBar1.Minimum = 0;
            progressBar1.Name = "progressBar1";
            progressBar1.OnProgressChanged = null;
            progressBar1.ShowText = true;
            progressBar1.Size = new System.Drawing.Size(274, 18);
            progressBar1.TabIndex = 156;
            progressBar1.Value = 25;
            //
            // AddBatchPageForm
            //
            AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
            AutoScaleMode = AutoScaleMode.Font;
            BackColor = System.Drawing.Color.White;
            ClientSize = new System.Drawing.Size(384, 521);
            Controls.Add(userControl1);
            Controls.Add(memoBox1);
            Controls.Add(dialogFooter1);
            Controls.Add(label1);
            KeyPreview = true;
            MinimumSize = new System.Drawing.Size(400, 560);
            Name = "AddBatchPageForm";
            Text = "Add Multiple Pages";
            userControl1.ResumeLayout(false);
            ResumeLayout(false);
            PerformLayout();
        }

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

            memoBox1.Text = string.Empty;

            progressBar1.Minimum = 0;
            progressBar1.Value = 0;
            progressBar1.Maximum = 0;

            memoBox1.Focus();
        }

        protected override void OnFormClosing(FormClosingEventArgs e)
        {
            base.OnFormClosing(e);

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


        [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public List<App6Options.Item> Result
        {
            get => result;
            private set => result = value;
        }


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

                UIControl.SetEnable(memoBox1, !isBusy);

                dialogFooter1.IsBusy = isBusy;
            }
        }


        private async void dialogFooter1_OnButton1Click(object sender, MouseEventArgs e)
        {
            if (this.IsBusy)
            {
                return;
            }

            this.IsBusy = true;
            this.Result = new List<App6Options.Item>();

            await Task.Run(async () =>
            {
                progressBar1.Value = 0;
                progressBar1.Maximum = memoBox1.Lines?.Length ?? 0;

                foreach (var item in memoBox1.Lines ?? new string[0])
                {
                    progressBar1.Value++;

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

                    if (!_webPageService.IsValidUrl(item))
                    {
                        continue;
                    }

                    var newBookmark = await CreateApp6OptionsItem(item, _rootPath);
                    if (newBookmark == null)
                    {
                        continue;
                    }

                    this.Result.Add(newBookmark);
                }
            });

            this.IsBusy = false;
            this.DialogResult = DialogResult.OK;

            this.Close();
        }

        private async Task<App6Options.Item> CreateApp6OptionsItem(string url, string path)
        {
            if (!_webPageService.IsValidUrl(url))
            {
                return null;
            }

            HtmlAgilityPack.HtmlDocument htmlDocument = null;

            try
            {
                htmlDocument = await _webPageService.GetDocument(url);
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.Message, "Update Icon", MessageBoxButtons.OK, MessageBoxIcon.Error);

                return null;
            }

            if (htmlDocument == null)
            {
                return null;
            }

            var response = new App6Options.Item();
            response.Address = url;
            response.Path = path;
            response.Title = _webPageService.ParseTitle(htmlDocument) ?? string.Empty;
            response.Description = _webPageService.ParseDescription(htmlDocument) ?? string.Empty;

            var faviconUrl = _webPageService.ParseFavicon(htmlDocument);
            if (!string.IsNullOrWhiteSpace(faviconUrl))
            {
                var favicon = await _webPageService.GetImage(faviconUrl);
                if (favicon != null)
                {
                    if (favicon.Width > 16)
                    {
                        favicon = RyzStudio.Drawing.ImageEditor.Resize(favicon, 16, 16);
                    }
                }

                response.Icon = favicon;
            }

            return response;
        }

    }
}