JensKrumsieck/ChemSharp

using System.Globalization;
using System.Text.Json;

namespace ChemSharp.Molecules.Generator;

public static class JsonTools
{
    public static string TryGetString(this JsonElement jsonObject, string propertyName)
    {
        if (!jsonObject.TryGetProperty(propertyName, out var value))
            return "";
        return value.GetString() ?? "";
    }

    public static string TryGetInt(this JsonElement jsonObject, string propertyName)
    {
        if (!jsonObject.TryGetProperty(propertyName, out var value))
            return 0.ToString(CultureInfo.InvariantCulture);
        if (value.ValueKind != JsonValueKind.Number)
            return 0.ToString(CultureInfo.InvariantCulture);
        if (!value.TryGetInt32(out var @int))
            return 0.ToString(CultureInfo.InvariantCulture);
        return @int.ToString(CultureInfo.InvariantCulture);
    }

    public static string TryGetDouble(this JsonElement jsonObject, string propertyName)
    {
        if (!jsonObject.TryGetProperty(propertyName, out var value))
            return 0d.ToString(CultureInfo.InvariantCulture);
        if (value.ValueKind != JsonValueKind.Number)
            return 0d.ToString(CultureInfo.InvariantCulture);
        if (!value.TryGetDouble(out var @double))
            return 0d.ToString(CultureInfo.InvariantCulture);
        return @double.ToString(CultureInfo.InvariantCulture);
    }
}