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ScanBox/Usuario.cs

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+using ScaBox30.Model;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ScaBox30
+{
+    public partial class Usuario : Form
+    {
+
+        
+
+        public Usuario()
+        {
+            InitializeComponent();
+            InitializeItems();
+            InitializeButtons();
+            LoadUsers();
+        }
+
+        private void LoadUsers()
+        {
+            CreateUserJson(Globals.auth_json);
+            LoadUserJson(Globals.auth_json);
+
+            if (Globals.users.Count > 0)
+            {
+                foreach (var user in Globals.users)
+                {
+                    comboUser.Items.Add(user.user);
+                }
+                comboUser.SelectedIndex = 0;
+            }
+        }
+
+        private void CreateUserJson(string jsonfile)
+        {
+            if (!File.Exists(jsonfile))
+            {
+                List<User> users = new List<User> { };
+                users.Add(new User() { user = "admin", password = "admin123" });
+                var json = JsonSerializer.Serialize<List<User>>(users);
+                File.WriteAllText(jsonfile, json);
+                users.Clear();
+            }
+        }
+
+        private void LoadUserJson(string jsonfile)
+        {
+            if (File.Exists(jsonfile))
+            {
+                Globals.users.Clear();
+                string jsoncontent = File.ReadAllText(jsonfile);
+                Globals.users = JsonSerializer.Deserialize<List<User>>(jsoncontent);
+                jsoncontent = "";
+            }
+        }
+
+        private void buttonOk_Click(object sender, EventArgs e)
+        {
+            if (Globals.users.Count() > 0)
+            {
+                var res = Globals.users.Find(u => u.password == textPassword.Text);
+                if (res != null) { 
+                    Globals.valid_user = true;
+                    Globals.users.Clear();
+                    this.Close();
+                } else
+                {
+                    textPassword.Text = "";
+                    Globals.valid_user = false;
+                    Globals.users.Clear();
+                    this.Close();
+                }
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            if (Globals.users.Count() > 0)
+            {
+                var res = Globals.users.Find(u => u.password == textPassword.Text);
+                if (res != null)
+                {
+                    Globals.valid_user = true;
+                    Globals.users.Clear();
+                    this.Close();
+                }
+                else
+                {
+                    textPassword.Text = "";
+                    Globals.valid_user = false;
+                    Globals.users.Clear();
+                    this.Close();
+                }
+            }
+        }
+
+        private void button2_Click(object sender, EventArgs e)
+        {
+            this.Close();
+        }
+
+        private void InitializeItems()
+        {
+            this.FormBorderStyle = FormBorderStyle.None;
+            this.Padding = new Padding(Globals.borderSize);//Set border size
+            this.btnClose.DialogResult = DialogResult.Cancel;
+            this.button1.DialogResult = DialogResult.OK;
+            this.labelCaption.Text = this.Text;
+            this.panelTitleBar.BackColor = Globals.primaryColor;
+            this.panelTitleBar.Padding = new Padding(0, 0, 0, Globals.borderSize);
+            this.BackColor = Globals.primaryColor;
+        }
+
+        private void InitializeButtons()
+        {
+            int xCenter = (this.panelButtons.Width - button1.Width) / 2;
+            int yCenter = (this.panelButtons.Height - button1.Height) / 2;
+
+            //OK Button
+            button1.Visible = true;
+            button1.Location = new Point(xCenter - (button1.Width / 2) - 5, yCenter);
+            button1.Text = "Ok";
+            button1.DialogResult = DialogResult.OK;//Set DialogResult
+
+            //Cancel Button
+            button2.Visible = true;
+            button2.Location = new Point(xCenter + (button2.Width / 2) + 5, yCenter);
+            button2.Text = "Cancel";
+            button2.DialogResult = DialogResult.Cancel;//Set DialogResult
+            button2.BackColor = Globals.colors.retry_cancell;
+        }
+
+        #region -> Drag Form
+        [DllImport("user32.DLL", EntryPoint = "SendMessage")]
+        private extern static void SendMessage(System.IntPtr hWnd, int wMsg, int wParam, int lParam);
+        [DllImport("user32.DLL", EntryPoint = "ReleaseCapture")]
+        private extern static void ReleaseCapture();
+        private void panelTitleBar_MouseDown(object sender, MouseEventArgs e)
+        {
+            ReleaseCapture();
+            SendMessage(this.Handle, 0x112, 0xf012, 0);
+        }
+        #endregion
+    }
+}