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;

var mode = VisualThemeMode.Light;
var theme = VisualTheme.Graphite();
var model = HeatmapRecipe.Create("wide", mode);
var context = new VisualRenderContext(
    new VisualLayoutOptions(new VisualSize(800, 440)), theme, mode,
    new VisualFrame("Coverage across service areas", "Explore the data, then download the chart", showLegend: null, showSurface: false));
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 optional coverage measurements across service areas.</summary>
public static class HeatmapRecipe {
    /// <summary>Creates numeric coverage rows, preserving empty cell positions.</summary>
    public static Chart Create(string variant = "wide", VisualThemeMode mode = VisualThemeMode.Light) {
        if (variant is not ("wide" or "compact" or "sparse" or "compact-options")) throw new ArgumentOutOfRangeException(nameof(variant));
        return Chart.Create().WithXLabels("Identity", "Network", "Storage", "Backup", "Access", "Recovery")
            .AddHeatmapRow("Primary", variant == "sparse" ? new double?[] { 92, null, null, 70, null, 41 } : new double?[] { 92, 70, 56, null, 84, 41 },
                id: new ChartSeriesId("primary-measurements"))
            .AddHeatmapRow("Secondary", variant == "sparse" ? new double?[] { null, 84, null, null, 90, null } : 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));
    }
}