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;
using Perforce.P4;

namespace SampleApp
{
    public partial class MainForm : Form
    {
        // Server details.
        Server server;
        Repository rep;
        Connection con;
        Credential cred;
        Client client;
        Changelist changelist;

        // Connection details.
        string uri;
        string userName;
        string clientName;
        string password;

        // State constants.
        const string LOGGEDIN = "Logged In";
        const string LOGGEDOUT = "Logged Out";
        const string CONNECTED = "Connected";
        const string DISCONNECTED = "Disconnected";

        public MainForm()
        {
            InitializeComponent();
        }

        private void MainForm_Load(object sender, EventArgs e)
        {
            SetLoggedOut();
        }

        private void ExitButton_Click(object sender, EventArgs e)
        {
            // Release connection.
            if (con != null)
            {
                if (con.Status == ConnectionStatus.Connected) con.Disconnect();
            }

            Application.Exit();
        }

        private void ConnectButton_Click(object sender, EventArgs e)
        {
            try
            {
                SetDisconnected();

                //uri = ServerTextBox.Text.Trim();
                uri = "public.perforce.com:1666";

                Utilities utils = new Utilities();
                con = utils.ConnectToServer(uri, out server, out rep);

                SetConnected();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Application Error");
                Disconnect();
            }
        }

        private void SetConnected()
        {
            loginButton.Enabled = true;
            ConnectionTSStatusLabel.Text = CONNECTED;
            ConnectionTSStatusLabel.ForeColor = Color.Green;
            Application.DoEvents();
        }

        private void SetDisconnected()
        {
            SetLoggedOut();

            ConnectionTSStatusLabel.Text = DISCONNECTED;
            ConnectionTSStatusLabel.ForeColor = Color.Red;
            LoginTSStatusLabel.Text = LOGGEDOUT;
            LoginTSStatusLabel.ForeColor = Color.Red;
            Application.DoEvents();
        }
        private void SetLoggedIn()
        {
            GetClientButton.Enabled = true;
            SubmitClientButton.Enabled = true;
            loginButton.Enabled = true;

            LoginTSStatusLabel.Text = LOGGEDIN;
            LoginTSStatusLabel.ForeColor = Color.Green;
            Application.DoEvents();
        }

        private void SetLoggedOut()
        {
            GetClientButton.Enabled = false;
            SubmitClientButton.Enabled = false;
            loginButton.Enabled = false;

            LoginTSStatusLabel.Text = LOGGEDOUT;
            LoginTSStatusLabel.ForeColor = Color.Red;
            Application.DoEvents();
        }

        private void SubmitClientButton_Click(object sender, EventArgs e)
        {
            try
            {
                Utilities utils = new Utilities();
                client = utils.SubmitClientMap(client, rep);

                ResultTextBox.AppendText("Client Spec submitted.\n");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Application Error");
                Disconnect();
            }
        }

        private void GetClientButton_Click(object sender, EventArgs e)
        {
            try
            {
                Utilities utils = new Utilities();
                client = utils.GetClientMap(clientName, rep);

                // Display spec.
                ResultTextBox.AppendText(client.ViewMap.ToString() + "\n");

                SubmitClientButton.Enabled = true;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Application Error");
                Disconnect();
            }
        }

        private void Disconnect()
        {
            if (con.Status == ConnectionStatus.Connected) con.Disconnect();
            SetDisconnected();
        }

        private void loginButton_Click(object sender, EventArgs e)
        {
            try
            {
                Utilities utils = new Utilities();

                SetLoggedOut();

                userName = UserTextBox.Text.Trim();
                clientName = ClientTextBox.Text.Trim();
                password = PasswordTextBox.Text.Trim();

                utils.LoginToServer(con, userName, clientName, password, out cred);

                SetLoggedIn();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Application Error");
                Disconnect();
            }
        }

        private void GetChangeListButton_Click(object sender, EventArgs e)
        {
            try
            {
                Utilities utils = new Utilities();
                int ChangeListID;

                if (int.TryParse(ChangeListIDTextBox.Text, out ChangeListID))
                {
                    changelist = utils.GetChangelist(rep, ChangeListID);

                    foreach(var property in changelist.GetType().GetProperties())
                    {
                        ResultTextBox.AppendText(property.Name + ": " + property.GetValue(changelist) + "\n");
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Application Error");
                Disconnect();
            }
        }

        private void SubmitChangeListButton_Click(object sender, EventArgs e)
        {
            try
            {
                Utilities utils = new Utilities();
                changelist.Description += "!";
                changelist = utils.UpdateChangelist(rep, changelist);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Application Error");
                Disconnect();
            }
        }
    }
}