WireMock.Net-wiremock/src/WireMock.Net/Transformers/Handlebars/HandlebarsContext.cs

// Copyright © WireMock.Net

using HandlebarsDotNet;
using HandlebarsDotNet.Helpers.Extensions;
using Stef.Validation;
using WireMock.Handlers;

namespace WireMock.Transformers.Handlebars;

internal class HandlebarsContext : IHandlebarsContext
{
    public IHandlebars Handlebars { get; }

    public IFileSystemHandler FileSystemHandler { get; }

    public HandlebarsContext(IHandlebars handlebars, IFileSystemHandler fileSystemHandler)
    {
        Handlebars = Guard.NotNull(handlebars);
        FileSystemHandler = Guard.NotNull(fileSystemHandler);
    }

    public string ParseAndRender(string text, object model)
    {
        var template = Handlebars.Compile(text);
        return template(model);
    }

    public object? ParseAndEvaluate(string text, object model)
    {
        if (text.StartsWith("{{") && text.EndsWith("}}") &&
            Handlebars.TryEvaluate(text, model, out var result) &&
            result is not UndefinedBindingResult)
        {
            return result;
        }

        return ParseAndRender(text, model);
    }
}