// OpenTween - Client of Twitter
// Copyright (c) 2012      kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
// All rights reserved.
//
// This file is part of OpenTween.
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General public License as published by the Free
// Software Foundation; either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General public License
// for more details.
//
// You should have received a copy of the GNU General public License along
// with this program. If not, see <http://www.gnu.org/licenses/>, or write to
// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
// Boston, MA 02110-1301, USA.

#nullable enable

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;

namespace OpenTween
{
    /// <summary>
    /// OAuth認証のPINコードの入力を求めるダイアログ
    /// </summary>
    public partial class AuthDialog : OTBaseForm
    {
        public AuthDialog()
        {
            this.InitializeComponent();

            // PinTextBox のフォントを OTBaseForm.GlobalFont に変更
            this.PinTextBox.Font = this.ReplaceToGlobalFont(this.PinTextBox.Font);
        }

        public string AuthUrl
        {
            get => this.AuthLinkLabel.Text;
            set => this.AuthLinkLabel.Text = value;
        }

        public string Pin
        {
            get => this.PinTextBox.Text.Trim();
            set => this.PinTextBox.Text = value;
        }

        public string? BrowserPath { get; set; }

        private async void AuthLinkLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            // 右クリックの場合は無視する
            if (e.Button == MouseButtons.Right)
                return;

            this.AuthLinkLabel.LinkVisited = true;
            await MyCommon.OpenInBrowserAsync(this, this.BrowserPath, this.AuthUrl);
        }

        private void MenuItemCopyURL_Click(object sender, EventArgs e)
        {
            try
            {
                Clipboard.SetText(this.AuthUrl);
            }
            catch (ExternalException)
            {
            }
        }

        /// <summary>
        /// 指定されたURLにユーザーがアクセスするように指示してPINを入力させるだけ
        /// </summary>
        /// <param name="owner">親ウィンドウ</param>
        /// <param name="authUri">認証URL</param>
        /// <param name="browserPath">Webブラウザのパス</param>
        /// <returns>PIN文字列</returns>
        public static string? DoAuth(IWin32Window owner, Uri authUri, string? browserPath)
        {
            using var dialog = new AuthDialog();
            dialog.AuthUrl = authUri.AbsoluteUri;
            dialog.BrowserPath = browserPath;

            dialog.ShowDialog(owner);

            if (dialog.DialogResult == DialogResult.OK)
                return dialog.Pin;
            else
                return null;
        }
    }
}