using Documents.Interfaces;
using Documents.Models;
using System.Reflection;
using System.Text;
using Transversal.Interfaces;

namespace Documents.Services
{
    public class DocumentTemplateService : IDocumentTemplateService
    {
        private readonly ITemplateRenderer _templateRenderer;
        private readonly IPdfGeneratorService _pdfGeneratorService;

        public DocumentTemplateService(
            ITemplateRenderer templateRenderer,
            IPdfGeneratorService pdfGeneratorService)
        {
            _templateRenderer = templateRenderer;
            _pdfGeneratorService = pdfGeneratorService;
        }

        public async Task<byte[]> GenerateDocumentAsync(DocumentGenerationRequest request)
        {
            // 👉 Renderizar HTML usando RazorLight
            string html = await _templateRenderer.RenderAsync("Quotes/Template_v1.cshtml", request.Model);

            // 🔍 Dump HTML a archivo temporal para inspección
            File.WriteAllText("/app/html_debug_output.html", html, Encoding.UTF8);
            // 👉 Generar PDF desde el HTML
            return await _pdfGeneratorService.GeneratePdfFromHtmlAsync(html);
        }

    }
}