using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Linq;
using ChartForgeX.Core;
using ChartForgeX.Primitives;
using ChartForgeX.Rendering;
using ChartForgeX.Themes;
using ChartForgeX.Topology;
using ChartForgeX.Typography;
using ChartForgeX.VisualArtifacts;
using ChartForgeX.VisualBlocks;

// Optional exact gallery typography; copy the gallery's fonts directory beside this program.
FontRegistry.Register("CFX Proof Carlito", "fonts/Carlito-Regular.ttf", 400);
FontRegistry.Register("CFX Proof Carlito", "fonts/Carlito-Bold.ttf", 700);
var mode = VisualThemeMode.Dark;
var theme = VisualTheme.Graphite();
var model = LayeredRadialRecipe.Create("wide", mode);
var context = new VisualRenderContext(
    new VisualLayoutOptions(new VisualSize(800, 440)), theme, mode,
    new VisualFrame("Reviewed, verified and completed", "Explore the data, then download the chart", showLegend: null, showSurface: false), FontSpec.FromFamily("CFX Proof Carlito"));
var prepared = model.Prepare(context);
File.WriteAllText("visual.svg", prepared.ToSvg());
File.WriteAllBytes("visual.png", prepared.ToPng());
File.WriteAllText("visual.html", prepared.ToArtifact("example", VisualArtifactKind.Chart).ToHtmlPage());

/// <summary>Three independently sized radial layers for reviewed, verified and complete work.</summary>
public static class LayeredRadialRecipe {
    /// <summary>Creates three completion layers with different radii, sweeps and separators.</summary>
    public static Chart Create(string variant = "wide", VisualThemeMode mode = VisualThemeMode.Light) {
        if (variant is not ("wide" or "compact" or "sparse" or "options" or "compact-options"))
            throw new ArgumentOutOfRangeException(nameof(variant));
        var completion = ChartSeries.CreateLayeredRadial(new ChartSeriesId("completion"), "Completion", new[] {
            new ChartRadialLayer("Reviewed", 76) { RadiusRatio = 1, StrokeRatio = .13, SweepAngleDegrees = 300, StartAngleDegrees = -60 },
            new ChartRadialLayer("Verified", 58) { RadiusRatio = .7, StrokeRatio = .13, SweepAngleDegrees = 240, StartAngleDegrees = -30, SeparatorCount = 8 },
            new ChartRadialLayer("Complete", 42) { RadiusRatio = .4, StrokeRatio = .13, SweepAngleDegrees = 360 }
        });
        return Chart.Create().WithXLabels("North", "South", "East", "West", "Central", "Online").AddSeries(completion)
            .WithValueFormat(ChartValueFormat.Number("0.##", System.Globalization.CultureInfo.InvariantCulture));
    }
}