#region Setup
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.Dark;
var theme = VisualTheme.Graphite();
var model = CombinedGaugeRecipe.Create("wide", mode);
var context = new VisualRenderContext(
    new VisualLayoutOptions(new VisualSize(760, 440)), theme, mode,
    new VisualFrame("Pressure against operating bands", "Arc, needle and independently painted semantic bands", 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());
#endregion

/// <summary>A single reading shown with an arc, needle, explicit references and independently painted semantic bands.</summary>
public static class CombinedGaugeRecipe {
    public static Chart Create(string variant = "wide", VisualThemeMode mode = VisualThemeMode.Light) {
        if (variant is not ("wide" or "compact")) throw new ArgumentOutOfRangeException(nameof(variant));
        var compact = variant == "compact";
        var series = ChartSeries.CreateGauge(new ChartSeriesId("pressure"), "Pressure",
            new ChartGaugeValue(3.25, 2, 3, new[] { new ChartGaugeTarget(2.4, "Minimum"), new ChartGaugeTarget(2.8, "Target") }), ChartColor.FromHex("#176B88"))
            .WithObservationId(0, new ChartObservationId("current"));
        return Chart.Create().WithSize(compact ? 390 : 760, compact ? 360 : 440).WithTitle("Pressure against operating bands")
            .WithTheme(VisualTheme.Graphite(), mode).WithLegend(false).AddSeries(series)
            .WithValueFormat(ChartValueFormat.Number("0.00' MPa'"))
            .ConfigureGauge(options => {
                options.Form = ChartGaugeForm.ArcWithNeedle; options.StartAngleDegrees = 180; options.SweepAngleDegrees = 180;
                options.TickCount = 5; options.BandGap = 4; options.NeedleColor = ChartColor.FromHex("#9D3C20"); options.Caption = "Raw reading above the operating range";
                options.Bands.Add(new ChartGaugeBand(2, 2.4, ChartSeriesState.Warning, ChartColor.FromHex("#D4A72C"), .8));
                options.Bands.Add(new ChartGaugeBand(2.4, 2.8, ChartSeriesState.Success, ChartColor.FromHex("#178266")));
                options.Bands.Add(new ChartGaugeBand(2.8, 3, ChartSeriesState.Danger, ChartColor.FromHex("#C34D43"), .85));
            });
    }
}