using F4SD.DocuEngine.DocuEngineDataProvider;
using F4SD.DocuEngine.DocuEngineParser;
using F4SD.DocuEngine.DocuEngineParser.ContentBlock;
using F4SD.DocuEngine.DocuEngineParser.Exceptions;
using System;
using System.Collections.Generic;
using System.Text;

namespace F4SD.DocuEngine
{
    public class DocuEngine
    {
        public string DocuTemplate { get; private set; }
        public IDocuEngineDataContainer Container { get; private set; }
        private ParsingContext parsingContext;

        public DocuEngine(string docuTemplate, IDocuEngineDataContainer container)
        {
            DocuTemplate = docuTemplate;
            Container = container;
        }

        public string ParseTemplate()
        {
            var index = 0;
            parsingContext = new ParsingContext();
            ContentBlock contentBlock = new ContentBlock(DocuTemplate, Container);
            try
            {
                parsingContext.Append(contentBlock.ParseContentBlock(ref index));
            }
            catch (DocuEngineParser.Exceptions.DocuEngineParserException parserException)
            {
                parsingContext.Append(parserException.CurrentText);
                parsingContext.Append(parserException.PrintedErrorMessage);
                return parsingContext.GetFinalText();
            }
            return parsingContext.GetFinalText();
        }
    }
}