using System;
using Num = System.Numerics;
using System.Linq;
using System.Runtime.InteropServices;

using ImGuiNET;
using ImPlotNET;

using JM.LinqFaster;

using isometricparkfna.Messages;
using isometricparkfna.Components;
using isometricparkfna.Engines;

namespace isometricparkfna.UI
{

    public static class GraphWindow
    {
        public static bool hadFocus = false;

        public static int year = 1;

        public static void Render(ImFontPtr font, Simulation sim, ImGuiWindowBridgeEngine engine)
        {
            bool newShow = true;
                ImGui.PushFont(font);

                ImGui.GetStyle().WindowMenuButtonPosition = ImGuiDir.None;
                StyleSets.defaultSet.push();

                if(GraphWindow.hadFocus)
                {
                    ImGui.PushStyleColor(ImGuiCol.Text, StyleSets.white);
                }
                ImGui.SetNextWindowSize(new Num.Vector2(400, 400));

                ImGui.Begin("Graph", ref newShow, ImGuiWindowFlags.NoResize | ImGuiWindowFlags.NoCollapse | ImGuiWindowFlags.AlwaysAutoResize | ImGuiWindowFlags.NoSavedSettings);
                if (GraphWindow.hadFocus)
                {
                    ImGui.PopStyleColor();
                }
                GraphWindow.hadFocus = ImGui.IsWindowFocused();

                // ImGui.Text("Lorem Ipsum");

                var totals = sim.allBudgets().Select(b => (double)b.money);


                var totals_array = totals.ToArray();

                var periods = 12.0d * GraphWindow.year;

                // totals.Max() * 1.10d;
                ImPlot.SetNextPlotLimits(totals.Count()-periods, totals.Count(), 0.0d, (totals.Count() > 0 )? totals.Max() * 1.05 : 115_000d , ImGuiCond.Always);

                if( ImPlot.BeginPlot("My Plot")) {
                     // Span<double> totals = new Span<double>(new double[]{0.0, 1.0, 2.0, 9.0});
                    if (totals_array.Length > 0) 
                    {
                        // ImGui.PlotLines("MainGraph", ref totals[0], totals.Length, 0, null, float.MaxValue, float.MaxValue, new Num.Vector2(350, 200));
                        // ImPlot.PlotLine("My Line", ref MemoryMarshal.GetReference(totals), ref MemoryMarshal.GetReference(totals), totals.Length);
                        // Logging.Info(String.Format("Max: {0}", max.ToString()));
                         ImPlot.PlotLine("Total Funds", ref totals_array[0], totals_array.Length);
                    }
                    ImPlot.EndPlot();

                }

                ImGui.RadioButton("1 year", ref GraphWindow.year, 1);
                ImGui.SameLine();
                ImGui.RadioButton("5 years", ref GraphWindow.year, 5);
                ImGui.SameLine();
                ImGui.RadioButton("25 years", ref GraphWindow.year, 25);
                ImGui.SameLine();
                ImGui.RadioButton("100 years", ref GraphWindow.year, 100);




                ImGui.End();
                ImGui.GetStyle().WindowMenuButtonPosition = ImGuiDir.Left;
                StyleSets.defaultSet.pop();
                ImGui.PopFont();

        }
    }
}