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 BaseCalculator;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;

namespace UISP
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button11_Click(object sender, EventArgs e)
        {
            textBox1.Text += "4";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text += "+/-";
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text += "0";
        }

        private void button3_Click(object sender, EventArgs e)
        {

        }

        private void button6_Click(object sender, EventArgs e)
        {
            textBox1.Text += "8";
        }

        private void button16_Click(object sender, EventArgs e)
        {
            textBox1.Text += "/";
        }

        private void button13_Click(object sender, EventArgs e)
        {
            textBox1.Text += "1";
        }

        private void button14_Click(object sender, EventArgs e)
        {
            textBox1.Text += "2";
        }

        private void button15_Click(object sender, EventArgs e)
        {
            textBox1.Text += "3";
        }

        private void button5_Click(object sender, EventArgs e)
        {
            textBox1.Text += "7";
        }

        private void button7_Click(object sender, EventArgs e)
        {
            textBox1.Text += "9";
        }

        private void button8_Click(object sender, EventArgs e)
        {
            textBox1.Text += "-";
        }

        private void button9_Click(object sender, EventArgs e)
        {
            textBox1.Text += "6";
        }

        private void button10_Click(object sender, EventArgs e)
        {
            textBox1.Text += "5";
        }

        private void button12_Click(object sender, EventArgs e)
        {
            textBox1.Text += "*";
        }

        private void button4_Click(object sender, EventArgs e)
        {
            textBox1.Text += "+";
        }

        private void button23_Click(object sender, EventArgs e)
        {
            textBox1.Text += "(";
        }

        private void button24_Click(object sender, EventArgs e)
        {
            textBox1.Text += ")";
        }

        private void button20_Click(object sender, EventArgs e)
        {
            try
            {
                string expression = textBox1.Text;

                AnalaizerClass.expression = expression;

                if (!AnalaizerClass.CheckCurrency())
                {
                    textBox2.Text = $"ошибка: незаконченное выражение";
                    return;
                }

                expression = expression.Replace(" ", "");

                if (expression.StartsWith("sin(", StringComparison.OrdinalIgnoreCase) && expression.EndsWith(")"))
                {
                    string innerExpression = expression.Substring(4, expression.Length - 5);

                    if (double.TryParse(innerExpression, out double angle))
                    {
                        double result = CalcClass.Sinus(angle);
                        textBox2.Text = result.ToString("F6");
                        return;
                    }
                    else
                    {
                        textBox2.Text = "Ошибка: некорректный аргумент для sin";
                        return;
                    }
                }
                if (expression.StartsWith("cos(", StringComparison.OrdinalIgnoreCase) && expression.EndsWith(")"))
                {
                    string innerExpression = expression.Substring(4, expression.Length - 5);

                    if (double.TryParse(innerExpression, out double angle))
                    {
                        double result = CalcClass.Cosinus(angle);
                        textBox2.Text = result.ToString("F6");
                        return;
                    }
                    else
                    {
                        textBox2.Text = "ошибка: некоррентный аргумент для cos";
                        return;
                    }
                }
                if (expression.Contains("+"))
                {
                    string[] parts = expression.Split('+');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Add(a, b);

                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("√"))
                {
                    string[] parts = expression.Split('√');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);
                        double result = CalcClass.Power(a, b);
                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("-"))
                {
                    string[] parts = expression.Split('-');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Sub(a, b);

                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("*"))
                {
                    string[] parts = expression.Split('*');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Mult(a, b);

                        textBox2.Text = result.ToString();
                    }
                }
                else if (expression.Contains("/"))
                {
                    string[] parts = expression.Split('/');
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);

                        int result = CalcClass.Div(a, b);

                        textBox2.Text = result.ToString();
                    }
                }

                else if (expression.Contains("mod"))
                {
                    string[] parts = expression.Split(new string[] { "mod" }, StringSplitOptions.None);
                    if (parts.Length == 2)
                    {
                        long a = long.Parse(parts[0].Trim());
                        long b = long.Parse(parts[1].Trim());
                        if (b == 0)
                        {
                            textBox2.Text = "ошибка: деления на ноль в операции mod";
                            return;
                        }
                        int result = CalcClass.Mod(a, b);
                        textBox2.Text = result.ToString();
                    }
                    else
                    {
                        textBox2.Text = "ошибка: неверный формат выражения для mod";
                    }
                }
                else
                {
                    textBox2.Text = $"ошибка: неверный формат выражения";
                }

            }
            catch (Exception ex)
            {
                textBox2.Text = $"ошибка: {ex.Message}";
            }
        }

        private void button22_Click(object sender, EventArgs e)
        {
            textBox1.Text += "cos";
        }

        private void button27_Click(object sender, EventArgs e)
        {
            textBox1.Text += "sin";
        }

        private void button26_Click(object sender, EventArgs e)
        {
            
        }

        private void button25_Click(object sender, EventArgs e)
        {
            if (!String.IsNullOrEmpty(textBox1.Text))
            {
                textBox1.Text = textBox1.Text.Substring(0, textBox1.Text.Length - 1);
            }
        }

        private void button28_Click(object sender, EventArgs e)
        {
            textBox1.Text += "√";
        }
    }
}