using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CSS_Solution.Forms
{
    public partial class Welcome_Form : Form
    {
        public Welcome_Form()
        {
            InitializeComponent();
        }
        private Font normal_font = new Font("Microsoft YaHei UI", 15F, FontStyle.Regular, GraphicsUnit.Point, 134);
        private Font italic_font = new Font("Microsoft YaHei UI", 15F, FontStyle.Italic, GraphicsUnit.Point, 134);
        private void ID_Enter(object sender, EventArgs e)
        {
            if (ID.Font != normal_font)
            {
                ID.Text = string.Empty;
                ID.ForeColor = Color.White;
                ID.Font = normal_font;
            }
        }

        private void ID_Leave(object sender, EventArgs e)
        {
            if (ID.Text == string.Empty)
            {
                ID.ForeColor = Color.Silver;
                ID.Font = italic_font;
                ID.Text = "学号...";
            }
        }

        private void password_Enter(object sender, EventArgs e)
        {
            if (password.Font != normal_font)
            {
                password.Text = string.Empty;
                password.ForeColor = Color.White;
                password.Font = normal_font;
                password.PasswordChar = '*';
            }
        }

        private void password_Leave(object sender, EventArgs e)
        {
            if (password.Text == string.Empty)
            {
                password.ForeColor = Color.Silver;
                password.Font = italic_font;
                password.Text = "密码...";
                password.PasswordChar = '\0';
            }
        }
        bool save_disk_info_showed = false;
        private void SavePassword_CheckedChanged(object sender, EventArgs e)
        {

            if (sender == null||save_disk_info_showed)
                return;
            CheckBox? checkBox = sender as CheckBox;
            if (checkBox == null) return;
            if(checkBox.Checked)
            {
                save_disk_info_showed = true;
                MessageBox.Show("注意，密码确实会保存为密文，但是该密文可直接用于登录网站（教务管理系统），理想状态下，该密码应当仅保存在内存中。");
            }
        }
    }
}