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 = HexbinHeatmapRecipe.Create("wide", mode);
var context = new VisualRenderContext(
    new VisualLayoutOptions(new VisualSize(800, 440)), theme, mode,
    new VisualFrame("Service coverage in hexagonal cells", "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>Shows service coverage as rows of hexagonal cells.</summary>
public static class HexbinHeatmapRecipe {
    /// <summary>Creates numeric coverage rows with explicit missing-cell positions.</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));
        return Chart.Create().WithXLabels("Identity", "Network", "Storage", "Backup", "Access", "Recovery")
            .AddHexbinHeatmapRow("Primary", new double?[] { 92, 70, 56, null, 84, 41 }, id: new ChartSeriesId("primary-measurements"))
            .AddHexbinHeatmapRow("Secondary", new double?[] { 76, 84, 46, 70, 90, 62 }, id: new ChartSeriesId("secondary-measurements"))
            .WithHeatmapScale(ChartHeatmapScale.Sequential).WithHeatmapCellGap(3).WithHeatmapCellRadius(3)
            .WithHeatmapValueTextMode(ChartHeatmapValueTextMode.Auto)
            .WithValueFormat(ChartValueFormat.Number("0.##", CultureInfo.InvariantCulture));
    }
}