using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
using MySql.Data.MySqlClient;

namespace demMalyhin
{
    public partial class AdmEditOrder : Form
    {
        private string productId;
        public AdmEditOrder(string productId)
        {
            InitializeComponent();
            LoadProductData(productId);
            LoadPickup();
            LoadStatus();
        }

        private void LoadProductData(string productId)
        {
            try
            {
                DB db = new DB();
                using (MySqlConnection connection = db.getConnection())
                {
                    connection.Open();
                    string query = "SELECT order_date, delivery_date, pickup_point_id, user_initials_id, code, orderstatus_id FROM Orders WHERE id_Orders = @id";
                    using (MySqlCommand command = new MySqlCommand(query, connection))
                    {
                        command.Parameters.AddWithValue("@id", productId);
                        using (MySqlDataReader reader = command.ExecuteReader())
                        {
                            if (reader.Read())
                            {
                                textBoxId.Text = productId;
                                textBoxDate.Text = reader["order_date"].ToString();
                                textBoxDelivery.Text = reader["delivery_date"].ToString();
                                comboBoxPoint.Text = reader["pickup_point_id"].ToString();
                                textBoxCode.Text = reader["code"].ToString();
                                comboBoxStatus.Text = reader["orderstatus_id"].ToString();
                            }
                            else
                            {
                                MessageBox.Show("Продукт с указанным ID не найден.");
                                this.DialogResult = DialogResult.Cancel;
                                this.Close();
                            }
                        }
                    }
                }
            }
            catch (MySqlException ex)
            {
                MessageBox.Show("Ошибка при загрузке данных продукта: " + ex.Message);
            }
        }

        private void LoadPickup()
        {
            try
            {
                DB db = new DB();
                using (MySqlConnection connection = db.getConnection())
                {
                    connection.Open();
                    string query = "SELECT idpickup_points, pickup_points.index FROM pickup_points";
                    using (MySqlCommand command = new MySqlCommand(query, connection))
                    {
                        using (MySqlDataReader reader = command.ExecuteReader())
                        {
                            DataTable categoryTable = new DataTable();
                            categoryTable.Load(reader);

                            comboBoxPoint.DataSource = categoryTable;
                            comboBoxPoint.DisplayMember = "index";
                            comboBoxPoint.ValueMember = "idpickup_points";
                        }
                    }
                }
            }
            catch (MySqlException ex)
            {
                MessageBox.Show("Ошибка при загрузке категорий: " + ex.Message);
            }
        }

        private void LoadStatus()
        {
            try
            {
                DB db = new DB();
                using (MySqlConnection connection = db.getConnection())
                {
                    connection.Open();
                    string query = "SELECT id_OrderStatus, status_name FROM OrderStatus";
                    using (MySqlCommand command = new MySqlCommand(query, connection))
                    {
                        using (MySqlDataReader reader = command.ExecuteReader())
                        {
                            DataTable statusTable = new DataTable();
                            statusTable.Load(reader);

                            comboBoxStatus.DataSource = statusTable;
                            comboBoxStatus.DisplayMember = "status_name";
                            comboBoxStatus.ValueMember = "id_OrderStatus";
                        }
                    }
                }
            }
            catch (MySqlException ex)
            {
                MessageBox.Show("Ошибка при загрузке категорий: " + ex.Message);
            }
        }

        private void button3_Click(object sender, EventArgs e)
        {
            try
            {

                object supplierId = comboBoxStatus.SelectedValue;
                object manufacturerId = comboBoxPoint.SelectedValue;

                DB db = new DB();
                using (MySqlConnection connection = db.getConnection())
                {
                    connection.Open();
                    string query = "UPDATE Orders SET order_date = @od, delivery_date = @dd, pickup_point_id = @point, orderstatus_id = @status, Orders.code = @code WHERE id_Orders = @id";
                    using (MySqlCommand command = new MySqlCommand(query, connection))
                    {
                        command.Parameters.AddWithValue("@id", textBoxId.Text);
                        command.Parameters.AddWithValue("@od", textBoxDate.Text);
                        command.Parameters.AddWithValue("@dd", textBoxDelivery.Text);
                        command.Parameters.AddWithValue("@code", textBoxCode.Text);
                        command.Parameters.AddWithValue("@status", supplierId);
                        command.Parameters.AddWithValue("@point", manufacturerId);
                       

                        int rowsAffected = command.ExecuteNonQuery();
                        if (rowsAffected > 0)
                        {
                            MessageBox.Show("Данные продукта успешно обновлены.");
                            this.DialogResult = DialogResult.OK;
                            this.Close();
                        }
                        else
                        {
                            MessageBox.Show("Не удалось обновить данные продукта.");
                        }
                    }
                }
            }
            catch (MySqlException ex)
            {
                MessageBox.Show("Ошибка при сохранении данных продукта: " + ex.Message);
            }
        }
    }
}