using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace Supermarket
{
    public partial class ProductForm : Form
    {
        public ProductForm()
        {
            InitializeComponent();
        }

        private void ProductButton2_Click(object sender, EventArgs e)
        {
            this.Hide();
            ProductForm log = new ProductForm();
            log.Show();
        }

        private void CategoryButton2_Click(object sender, EventArgs e)
        {
            this.Hide();
            CategoriesForm log = new CategoriesForm();
            log.Show();
        }

        private void SellerButton2_Click(object sender, EventArgs e)
        {
            this.Hide();
            SellerForm log = new SellerForm();
            log.Show();
        }

        private void populate()
        {
            Con.Open();
            string query = "SELECT * FROM ProductData";
            SqlDataAdapter sda = new SqlDataAdapter(query, Con);
            SqlCommandBuilder builder = new SqlCommandBuilder(sda);
            var ds = new DataSet();
            sda.Fill(ds);
            ProductDatagrid.DataSource = ds.Tables[0];
            Con.Close();
        }

        SqlConnection Con = new SqlConnection(@"[Your Data Location]");
        private void AddButton2_Click(object sender, EventArgs e)
        {
            try
            {
                Con.Open();
                string query = "INSERT INTO ProductData VALUES(" + ProductId.Text + ", '" + ProductName.Text + "', '" + ProductQuantity.Text + "', '" + ProductPrice.Text + "', '" + CategoryComboBox1.SelectedValue.ToString() + "')";
                SqlCommand cmd = new SqlCommand(query, Con);
                cmd.ExecuteNonQuery();
                MessageBox.Show("New Product Added Successfully");
                Con.Close();
                populate();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void EditButton2_Click(object sender, EventArgs e)
        {
            try
            {
                Con.Open();
                string query = "UPDATE ProductData SET ProductName='" + ProductName.Text + "', ProductQuantity='" + ProductQuantity.Text + "', ProductPrice='" + ProductPrice.Text + "', ProductCategory='" + CategoryComboBox1.SelectedValue.ToString() + "' WHERE ProductId='" + ProductId.Text+ "'";
                SqlCommand cmd = new SqlCommand(query, Con);
                cmd.ExecuteNonQuery();
                MessageBox.Show("Product Updated Successfully");
                Con.Close();
                populate();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void DeleteButton2_Click(object sender, EventArgs e)
        {
            try
            {
                Con.Open();
                string query = "DELETE FROM ProductData WHERE ProductId=" + ProductId.Text + "";
                SqlCommand cmd = new SqlCommand(query, Con);
                cmd.ExecuteNonQuery();
                MessageBox.Show("Product Deleted Successfully");
                Con.Close();
                populate();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        private void ProductDatagrid_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            
                ProductId.Text = ProductDatagrid.SelectedRows[0].Cells[0].Value.ToString();
                ProductName.Text = ProductDatagrid.SelectedRows[0].Cells[1].Value.ToString();
                ProductQuantity.Text = ProductDatagrid.SelectedRows[0].Cells[2].Value.ToString();
                ProductPrice.Text = ProductDatagrid.SelectedRows[0].Cells[3].Value.ToString();
                CategoryComboBox1.SelectedValue = ProductDatagrid.SelectedRows[0].Cells[4].Value.ToString();
        }

        private void Logout2_Click(object sender, EventArgs e)
        {
            this.Hide();
            Login log = new Login();
            log.Show();
        }

        private void Fillcombo()
        {
            Con.Open();
            SqlCommand cmd = new SqlCommand("SELECT CategoryName FROM CategoryData", Con);
            SqlDataReader rdr;
            rdr = cmd.ExecuteReader();
            DataTable dt = new DataTable();
            dt.Columns.Add("CategoryName", typeof(string));
            dt.Load(rdr);
            CategoryComboBox1.ValueMember="CategoryName";
            CategoryComboBox1.DataSource = dt;
            CategoryComboBox2.ValueMember = "CategoryName";
            CategoryComboBox2.DataSource = dt;
            Con.Close();
        }

        private void RefreshButton1_Click(object sender, EventArgs e)
        {
            Con.Open();
            string query = "SELECT * FROM ProductData WHERE ProductCategory='"+CategoryComboBox2.SelectedValue.ToString()+"'";
            SqlDataAdapter sda = new SqlDataAdapter(query, Con);
            SqlCommandBuilder builder = new SqlCommandBuilder(sda);
            var ds = new DataSet();
            sda.Fill(ds);
            ProductDatagrid.DataSource = ds.Tables[0];
            Con.Close();
        }

        private void ProductForm_Load(object sender, EventArgs e)
        {
            populate();
            Fillcombo();
        }

        private void outbutton_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}