using Core.Exceptions;
using Core.Templates;
using Mustache;

namespace Generator.Infrastructure.TemplateFiller;

public class MustacheFiller : AbstractFiller
{
    public MustacheFiller(ITemplate template)
    {
        Template = template;
    }
    
    /// <inheritdoc/>
    public override void Fill()
    {
        var compiler = new FormatCompiler
        {
            RemoveNewLines = false
        };
        var generator = compiler.Compile(Template?.GetText());
        
        Render = generator.Render(Template?.GetData());
    }
    
    /// <inheritdoc/>
    public override void Write(string outputPath)
    {
        if (Render == null) throw new FillerException(
            "Filler Exception : No text can be written. Have you forgot to call the Fill method ?");
        
        using StreamWriter file = new StreamWriter(outputPath);
        file.Write(Render);
    }
}