using Components;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;
using LegendPosition = Components.ComponentExcelWithPieDiagram.LegendPosition;

namespace WinFormsApp
{
    public partial class FormNoVisual : Form
    {
        private List<ComponentExcelWithPieDiagram.ChartData> _chartData;
        private double _chartDataValuesSum
        {
            get
            {
                return _chartData.Sum(x => x.SeriesValue);
            }
        }

        public FormNoVisual()
        {
            InitializeComponent();
            _chartData = new List<ComponentExcelWithPieDiagram.ChartData>();
            comboBoxLegendPosition.DataSource = Enum.GetValues(typeof(LegendPosition));
            UpdateNumericUpDownSeriesValueMaximumValue();
        }

        private void buttonCreateExcelFile_Click(object sender, EventArgs e)
        {
            string[] list = new string[listBoxImages.Items.Count];
            for (int i = 0; i < listBoxImages.Items.Count; i++)
            {
                list[i] = listBoxImages.Items[i].ToString();
            }
            try
            {
                componentExcelWithImage.CreateExcelWithImages(textBoxFilePath.Text, textBoxTitle.Text, list);
                MessageBox.Show("Файл успешно создан", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show($"Ошибка при создании файла:\n{ex.Message}", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void buttonSetFilePath_Click(object sender, EventArgs e)
        {
            var filePath = string.Empty;

            using (SaveFileDialog saveFileDialog = new SaveFileDialog())
            {
                saveFileDialog.InitialDirectory = "d:\\tmp";
                saveFileDialog.Filter = "Excel files (*.xlsx)|*.xlsx|All files (*.*)|*.*";
                saveFileDialog.FilterIndex = 1;
                saveFileDialog.RestoreDirectory = true;

                if (saveFileDialog.ShowDialog() == DialogResult.OK)
                {
                    filePath = saveFileDialog.FileName;
                }
            }

            if (!string.IsNullOrEmpty(filePath))
            {
                textBoxFilePath.Text = filePath;
            }
            else
            {
                textBoxFilePath.Text = string.Empty;
            }
        }

        private void buttonAddImage_Click(object sender, EventArgs e)
        {
            var filePath = string.Empty;

            using (OpenFileDialog openFileDialog = new OpenFileDialog())
            {
                openFileDialog.InitialDirectory = "d:\\tmp";
                openFileDialog.Filter = "Image files (*.jpeg;*.jpg;*.png)|*.jpeg;*.jpg;*.png|All files (*.*)|*.*";
                openFileDialog.FilterIndex = 1;
                openFileDialog.RestoreDirectory = true;

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    filePath = openFileDialog.FileName;
                }
            }

            if (!string.IsNullOrEmpty(filePath))
            {
                listBoxImages.Items.Add(filePath);
            }
        }

        private void buttonClearImages_Click(object sender, EventArgs e)
        {
            listBoxImages.Items.Clear();
        }

        private void buttonAddSeries_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBoxSeriesName.Text) || numericUpDownSeriesValue.Value == 0)
            {
                return;
            }
            ComponentExcelWithPieDiagram.ChartData chartData = new();
            chartData.SeriesName = textBoxSeriesName.Text;
            chartData.SeriesValue = (double)numericUpDownSeriesValue.Value;
            _chartData.Add(chartData);
            textBoxSeriesName.Text = string.Empty;
            UpdateDataGridViewChartData();
            UpdateNumericUpDownSeriesValueMaximumValue();
        }

        private void buttonClearSeries_Click(object sender, EventArgs e)
        {
            _chartData.Clear();
            dataGridViewSeries.DataSource = null;
        }

        private void buttonCreateExcelWithPieDiagram_Click(object sender, EventArgs e)
        {
            LegendPosition legendPosition;
            Enum.TryParse<LegendPosition>(comboBoxLegendPosition.SelectedValue.ToString(), out legendPosition);
            try
            {
                componentExcelWithPieDiagram.CreateExcelWithPieChart(textBoxFilePath.Text, textBoxTitle.Text, textBoxDiagramTitle.Text, legendPosition, _chartData);
                MessageBox.Show("Файл успешно создан", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show($"Ошибка при создании файла:\n{ex.Message}", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void UpdateDataGridViewChartData()
        {
            dataGridViewSeries.DataSource = null;
            dataGridViewSeries.DataSource = _chartData;
        }

        private void UpdateNumericUpDownSeriesValueMaximumValue()
        {
            numericUpDownSeriesValue.Maximum = (decimal)(100 - _chartDataValuesSum);
            numericUpDownSeriesValue.Value = numericUpDownSeriesValue.Maximum;
        }
    }
}