using Newtonsoft.Json;
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;

namespace RentCar
{
    public partial class AdminView : Form
    {
        DefaultView _parent;
        private List<Car> database;
        int _rowIndex = -1;

        public AdminView(DefaultView parent)
        {
            this._parent = parent;
            this._parent.Hide();
            InitializeComponent();
        }

        public bool addCar(Car value)
        {
            try
            {
                database.Add(value);
            }
            catch (Exception ex)
            {
                return false;
            }

            return true;
        }

        public bool changeCar(Car value, int index)
        {
            try
            {
                database[index] = value;
            }
                catch (Exception ex)
            {
                return false;
            }
            return true;

        }

        public List<Car> getDb()
        {
            return this.database;
        }

        private void dataGridCars_RowPrePaint(object sender, DataGridViewRowPrePaintEventArgs e)
        {
            e.PaintParts &= ~DataGridViewPaintParts.Focus;
        }

        private void AdminView_Load(object sender, EventArgs e)
        {
            dataGridCars.ColumnCount = 9;

            dataGridCars.Columns[0].Name = "#";
            dataGridCars.Columns[1].Name = "Марка";
            dataGridCars.Columns[2].Name = "Модель";
            dataGridCars.Columns[3].Name = "Тип кузова";
            dataGridCars.Columns[4].Name = "Цвет";
            dataGridCars.Columns[5].Name = "Стоимость (за день)";
            dataGridCars.Columns[6].Name = "Состояние";
            dataGridCars.Columns[7].Name = "Срок аренды (в днях)";
            dataGridCars.Columns[8].Name = "Арендовал";

            downloadDatabase();
            renderGrid();
            dataGridCars.AllowUserToAddRows = false;
            dataGridCars.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            dataGridCars.MultiSelect = false;
            dataGridCars.RowPrePaint += new DataGridViewRowPrePaintEventHandler(dataGridCars_RowPrePaint);


        }

        public void renderGrid()
        {
            dataGridCars.Rows.Clear();
            int count = 0;
            foreach (var item in database)
            {

                dataGridCars.Rows.Add(new string[] { $"{count++}", item.brand, item.model, item.bodyType, item.color, $"{item.price}", item.rented?"Арендована" : "Свободна", item.expires != 0 ? $"{item.expires}":"", item.owner });
            }
        }

        private void downloadDatabase()
        {
            string path = $"{Directory.GetCurrentDirectory()}/base.json";


            if (!File.Exists(path))
            {
                // Create a file to write to.
                string[] createText = { "" };
                File.WriteAllLines(path, createText);
            }


            string[] readText = File.ReadAllLines(path);
            database = JsonConvert.DeserializeObject<List<Car>>(String.Join("", readText));

        }

        private void CloseHandle(object sender, FormClosedEventArgs e)
        {

        }

        private void tableData_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void dataGridCars_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }


        private void IndexHandler(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex == -1) return;
            int.TryParse(dataGridCars.Rows[e.RowIndex].Cells[0].Value.ToString(), out _rowIndex);
        }

        private void dataGridCars_CellContentClick_1(object sender, DataGridViewCellEventArgs e)
        {

        }

        private void CloseHandler(object sender, FormClosedEventArgs e)
        {
            string path = $"{Directory.GetCurrentDirectory()}/base.json";

            File.WriteAllLines(path, new string[] { JsonConvert.SerializeObject(database) });

            this._parent.Show();

        }

        private void deleteBtn_Click(object sender, EventArgs e)
        {
            if (dataGridCars.SelectedRows.Count == 0)
            {
                MessageBox.Show("Выберите строку!", "Ошибка", MessageBoxButtons.OK);
                return;
            }
            DialogResult dialogResult = MessageBox.Show($"Вы уверены что хотите удалить выбранный автомобиль?", "Удаление", MessageBoxButtons.YesNo);
            if (dialogResult == DialogResult.Yes)
            {
                database.Remove(database[_rowIndex]);
                renderGrid();
            }

        }

        private void button1_Click(object sender, EventArgs e)
        {
            AddChangeView wnd = new AddChangeView(this, null,true, 0);
            wnd.Show();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (_rowIndex == -1) {
                MessageBox.Show($"Выберите машину", "Ошибка", MessageBoxButtons.OK);
            }
            AddChangeView wnd = new AddChangeView(this, database[_rowIndex], false, _rowIndex);
            wnd.Show();
        }
    }
}