namespace Hotel
{
    [Serializable]
    public class Camera
    {
        private int nr;
        public enum  TipuriCamera {single, doubla, tripla};
        private DateTime checkout;
        private string tipCamera;

        public int Nr { get => nr; set => nr = value; }
        public bool Ocupata
        {
            get
            {
                if (checkout < DateTime.Now)
                    return false;
                return true;
            }
        }
        public string TipCamera { get => tipCamera; set => tipCamera = value; }
        public DateTime Checkout { get => checkout; set => checkout = value; }

        public Camera(int nr, DateTime checkout, TipuriCamera tipCamera)
        {
            this.nr = nr;
            this.checkout = checkout;
            this.tipCamera = tipCamera.ToString();
        }

        public override string ToString()
        {
            return "" + nr + ": " + checkout.ToShortDateString() + " " + tipCamera;
        }

        public int getNrCamere()
        {

            if (tipCamera == "single")
                return 1;
            else if (tipCamera == "doubla")
                return 2;
            return 3;
        }

        public static int operator + (Camera c1, Camera c2)
        {
            return  c1.getNrCamere() + c2.getNrCamere();
        }

        public static bool operator < (Camera c1, Camera c2)
        {
            if (c1.getNrCamere() < c2.getNrCamere())
                return true;
            return false;
        }

        public static bool operator > (Camera c1, Camera c2)
        {
            if (c1.getNrCamere() > c2.getNrCamere())
                return true;
            return false;
        }

    }
}

namespace Hotel
{
    public class Hotel
    {

        private List<Camera> camere;
        public List<Camera> Camere { get => camere; set => camere = value; }

        public int nrCamereLibere()
        {
            int sum = 0;
            foreach(Camera c in camere)
            {
                if (c.Ocupata == false)
                    sum++;
            }
            return sum;
        }


    }
}

namespace Hotel
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Camera c1 = new Camera(1, DateTime.Now, Camera.TipuriCamera.doubla);
            Console.WriteLine(c1);

            List<Camera> list = new List<Camera>();
            StreamReader stream = new StreamReader("camere.txt");
            string line;
            while ((line = stream.ReadLine()) != null)
            {
                string[] sir = line.Split(',');
                Camera.TipuriCamera tip;
                if (sir[2] == "dubla")
                {
                    tip = Camera.TipuriCamera.doubla;
                }
                else if (sir[2] == "tripla")
                {
                    tip = Camera.TipuriCamera.tripla;
                }
                else
                    tip = Camera.TipuriCamera.single;
                Camera c = new Camera(int.Parse(sir[0]), DateTime.ParseExact(sir[1], "dd-MM-yyyy", null), tip);
                list.Add(c);
            }

            foreach (Camera c in list)
            {
                Console.WriteLine(c);
            }

            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1(list));
        }
    }
}

namespace Hotel
{
    public partial class Form2 : Form
    {
        Camera camera;
        public Form2(Camera c)
        {
            InitializeComponent();

            camera = c;
            textBoxNr.Text = c.Nr.ToString();
            if (c.TipCamera == "dubla")
                comboBoxTip.Text = comboBoxTip.Items[1].ToString();
            else if (c.TipCamera == "single")
                comboBoxTip.Text = comboBoxTip.Items[0].ToString();
            else
                comboBoxTip.Text = comboBoxTip.Items[2].ToString();
            textBoxData.Text = c.Checkout.ToShortDateString();



        }

        private void btnOk_Click(object sender, EventArgs e)
        {

            errorProvider1.SetError(textBoxNr, string.Empty);

            try
            {
                int nr = int.Parse(textBoxNr.Text);
                if (nr < 0)
                    throw new Exception("negativ");
                if (nr > 400 || nr < 100)
                    throw new Exception("inexistent");
                camera.Nr = nr;


                Camera.TipuriCamera tip;
                if (comboBoxTip.SelectedItem.ToString() == "single")
                    tip = Camera.TipuriCamera.single;
                else if (comboBoxTip.SelectedItem.ToString() == "doubla")
                    tip = Camera.TipuriCamera.doubla;
                else
                    tip = Camera.TipuriCamera.tripla;
                DateTime data = DateTime.Parse(textBoxData.Text);
                camera.Checkout = data;

                camera.TipCamera = tip.ToString();

                Close();
            }
            catch(FormatException)
            {
                MessageBox.Show("here");
                errorProvider1.SetError(textBoxNr, "Numarul camerei este doar numeric!");
            }
            catch(Exception ex)
            {
                if (ex.Message == "negativ")
                {
                    errorProvider1.SetError(textBoxNr, "Numarul camerei este pozitiv");
                }
                else if (ex.Message == "inexistent")
                {
                    errorProvider1.SetError(textBoxNr, "Aceasta camera nu exista!");
                }
            }


        }
    }
}

namespace Hotel
{
    public partial class Form1 : Form
    {
        public List<Camera> lstCamere;
        public Form1(List<Camera> list)
        {
            InitializeComponent();
            lstCamere = new List<Camera>();
            lstCamere = list;

            listView1.View = View.Details;
            listView1.Columns.Add("Numar camera", 100);
            listView1.Columns.Add("Tip camera", 100);
            listView1.Columns.Add("Checkout", 80);
            listView1.Columns.Add("Ocupata", 80);

            listView1.MultiSelect = false;
            listView1.FullRowSelect = true;

            populareListView();

            listView1.DoubleClick += ListView1_DoubleClick;
            listView1.MouseClick += ListView1_MouseClick;

            panel1.Paint += Panel1_Paint;
            panel1.Hide();
            FormClosing += Form1_FormClosing;
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {

            Stream stream = new FileStream("camere.dat", FileMode.Create);
            BinaryFormatter formatter = new BinaryFormatter();
            foreach (Camera c in lstCamere)
            {
                formatter.Serialize(stream, c);
            }
            stream.Close();


        }

        private void Panel1_Paint(object sender, PaintEventArgs e)
        {
            Pen pen = new Pen(Color.Black, 3);

            Graphics g = e.Graphics;
            int i = 2;
            foreach (Camera c in lstCamere)
            {
                int nr = c.getNrCamere();
                int space = 0;
                while (nr != 0)
                {
                    g.DrawLine(pen, new Point(space, 20 * i), new Point(space + 30 , 20 * i));
                    nr--;
                    space += 60;
                }
                i++;
            }
            g.Dispose();
        }

        private void ListView1_MouseClick(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                colorDialog1.ShowDialog();
                listView1.SelectedItems[0].BackColor = colorDialog1.Color;
            }
        }

        private void ListView1_DoubleClick(object sender, EventArgs e)
        {
            Camera c = (Camera)(listView1.SelectedItems[0].Tag);
            Form2 form2 = new Form2(c);
            form2.ShowDialog();

            populareListView();

        }

        public void populareListView()
        {
            listView1.Items.Clear();
            foreach(Camera c in lstCamere.OrderBy(c => c.Checkout))
            {
                ListViewItem rand = new ListViewItem();
                rand.Text = c.Nr.ToString();
                rand.SubItems.Add(c.TipCamera.ToString());
                rand.SubItems.Add(c.Checkout.ToShortDateString());
                if (c.Ocupata)
                {
                    rand.SubItems.Add("Da");
                }
                else
                {
                    rand.SubItems.Add("Nu");
                }
                rand.Tag = c;

                listView1.Items.Add(rand);
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            panel1.Show();
        }

    }
}