using PdfSharp.Charting;
using PdfSharp.Drawing;
using PdfSharp.Pdf;
using PdfSharp;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Controls.Models;

namespace Controls
{
    public partial class DiagramComponent : Component
    {
        public DiagramComponent()
        {
            InitializeComponent();
        }

        public DiagramComponent(IContainer container)
        {
            container.Add(this);

            InitializeComponent();
        }

        public void CreateLineDiagram(string docPath, string title, string header, Dictionary<string, List<Double>> data, LegendAlign legendAlign = LegendAlign.top)
        {
            if (string.IsNullOrEmpty(docPath))
            {
                throw new ArgumentNullException("Введите путь до файла!");
            }
            if (string.IsNullOrEmpty(title))
            {
                throw new ArgumentNullException("Введите заголовок");
            }
            if (string.IsNullOrEmpty(header))
            {
                throw new ArgumentNullException("Введите заголовок для диаграммы");
            }
            if (data.Count == 0)
            {
                throw new ArgumentException("Нету данных");
            }

            Chart chart = new Chart(ChartType.Line);

            chart.Legend.Docking = (DockingType)legendAlign;
            chart.Legend.LineFormat.Visible = true;

            foreach (var item in data)
            {
                Series series = chart.SeriesCollection.AddSeries();
                series.Name = item.Key;
                double[] vals = new double[item.Value.Count];
                for (int i = 0; i < item.Value.Count; i++)
                {
                    vals.SetValue(Convert.ToDouble(item.Value[i]), i);
                }

                series.Add(vals);
            }

            chart.XAxis.MajorTickMark = TickMarkType.Outside;
            chart.YAxis.MajorTickMark = TickMarkType.Outside;
            chart.YAxis.HasMajorGridlines = true;

            chart.PlotArea.LineFormat.Color = XColors.DarkGray;
            chart.PlotArea.LineFormat.Width = 1;
            chart.PlotArea.LineFormat.Visible = true;

            chart.Legend.LineFormat.Visible = true;

            ChartFrame chartFrame = new ChartFrame();
            chartFrame.Location = new XPoint(50, 70);
            chartFrame.Size = new XSize(500, 400);
            chartFrame.Add(chart);

            PdfDocument document = new PdfDocument(docPath);

            PdfPage page = document.AddPage();
            page.Size = PageSize.A4;

            XGraphics gfx = XGraphics.FromPdfPage(page);

            XFont font = new XFont("Times New Roman", 14);

            gfx.DrawString(title, font, XBrushes.Black, new XRect(20, 20, page.Width, page.Height), XStringFormats.TopLeft);
            gfx.DrawString(header, font, XBrushes.Black, new XRect(20, 40, page.Width, page.Height), XStringFormats.TopCenter);

            chartFrame.Draw(gfx);
            document.Close();
        }
    }
}