using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Reflection;
using System.Windows.Forms;
using Student_Account_Management.Model;
using Student_Account_Management.NumberToWords;

namespace Student_Account_Management.View
{
    public partial class PaymentReceiptForm : Form
    {
        private Students student;
        private Payments payment;
        private Users user;
        private string amountinwords1;
        private string amountinwords2;

        public PaymentReceiptForm(Students st, Payments py, Users us)
        {
            InitializeComponent();
            SetDoubleBuffer(ReceiptForm, true);
            this.student = st;
            this.payment = py;
            this.user = us;
            this.amountinwords1 = "";
            this.amountinwords2 = "";
        }

        private void PaymentReceiptForm_Load(object sender, EventArgs e)
        {
            MapPaymentReceiptInfo(student, payment, user);
        }

        private void ReceiptForm_Paint(object sender, PaintEventArgs e)
        {
            Pen pen = new Pen(Color.Black);
            e.Graphics.DrawLine(pen, 470, 110, 550, 110);
            e.Graphics.DrawLine(pen, 106, 110, 445, 110);
            e.Graphics.DrawLine(pen, 120, 132, 550, 132);
            e.Graphics.DrawLine(pen, 120, 155, 550, 155);
            e.Graphics.DrawLine(pen, 123, 200, 490, 200);
            e.Graphics.DrawLine(pen, 275, 220, 490, 220);
            e.Graphics.DrawLine(pen, 142, 220, 250, 220);
            e.Graphics.DrawLine(pen, 100, 277, 350, 277);
            e.Graphics.DrawLine(pen, 120, 300, 350, 300);
            Pen pen2 = new Pen(Color.Black);
            pen2.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
            Rectangle rect = new Rectangle(2, 2, ReceiptForm.Width - 5, ReceiptForm.Height - 5);
            e.Graphics.DrawRectangle(pen2, rect);
        }

        private void SetDoubleBuffer(Control cont, bool DoubleBuffered)
        {
            typeof(Control).InvokeMember("DoubleBuffered", BindingFlags.NonPublic |
                                                          BindingFlags.Instance |
                                                          BindingFlags.SetProperty,
                                                          null, cont, new object[] { DoubleBuffered });
        }

        private void doc_PrintPage(object sender, PrintPageEventArgs e)
        {
            Bitmap bmp = new Bitmap(ReceiptForm.Width, ReceiptForm.Height);
            ReceiptForm.DrawToBitmap(bmp, new Rectangle(0, 0, ReceiptForm.Width, ReceiptForm.Height));
            RectangleF bounds = e.PageSettings.PrintableArea;
            float factor = ((float)bmp.Height / (float)bmp.Width);
            e.Graphics.DrawImage(bmp, bounds.Left, bounds.Top, bounds.Width, factor * bounds.Width);
        }

        public void MapPaymentReceiptInfo(Students student, Payments payment, Users user)
        {
            SetAmountInWords();

            lblRecieptNo.Text = payment.PaymentID.ToString();
            lblPayer.Text = payment.Payer.ToUpper();
            lblAmouninWords1.Text = amountinwords1;
            lblAmountinWords2.Text = amountinwords2;
            lblAmount.Text = payment.Amount.ToString("#,###,##0.00");
            lblPurpose.Text = payment.Description.ToUpper();
            lblStudentID.Text = student.StudentID.ToString();
            lblStudentName.Text = student.FullName.ToUpper();
            lblDate.Text = payment.PaymentDate.ToString();
            lblUser.Text = user.ShortName.ToLower();

            PrintDocument doc = new PrintDocument();
            PrintController controller = new StandardPrintController();
            doc.PrintController = controller;
            doc.PrintPage += new PrintPageEventHandler(doc_PrintPage);
            doc.Print();
            this.Close();
        }

        private void SetAmountInWords()
        {
            int integerunit = (int)payment.Amount;
            int decimalunit = (int)(((decimal)payment.Amount % 1) * 100);
            string words1 = Converter.Format((long)integerunit, unit: UnitOfMeasure.Peso).ToUpper();
            
            if (decimalunit > 0)
            {
                string[] temp = (Converter.Format((long)decimalunit, unit: UnitOfMeasure.Peso).ToUpper()).Split(' ');
                if (temp.Length > 2)
                {
                    words1 += $" and {temp[0]} {temp[1]} CENTAVO";
                }
                else
                {
                    words1 += $" and {temp[0]} CENTAVO";
                }
            }

            words1 += " ONLY";

            if (words1.Length <= 60)
            {
                amountinwords1 = words1;
                return;
            }

            int lenght = 0;
            bool valid = true;
            foreach (string word in words1.Split(' '))
            {
                if ((lenght + word.Length + 1) <= 60 && valid)
                {
                    amountinwords1 += $"{word} ";
                    lenght += ($"{word} ").Length;
                }
                else
                {
                    valid = false;
                    amountinwords2 += $"{word} ";
                }
            }
        }
    }
}