using System;
using iTextSharp.text;
using Spring.Objects;
using Sleis.Utility;
using iTextSharp.text.pdf;
using log4net;

namespace Sleis.Pdf
{
    public class ObjectValueLabelParser : ElementWriter
    {

        //public readonly ILog LOG = LogManager.GetLogger(typeof(ObjectValueLabelParser));

       
        public string Format { get; set; }
        //public string Select { get; set; }
        public string[] Selects { get; set; }

        public override void Init()
        {
            if (String.IsNullOrEmpty(Format))
            {
                Format = "{0}";
            }
        }

        public string ParseValue(ObjectWrapper context)
        {
            LOG.Debug("Init Make");

            if (String.IsNullOrEmpty(Select) && (Selects == null || Selects.Length < 1))
            {
                return String.Format(Format, Label);
            }
            else
            {
                System.Collections.Generic.List<object> args = new System.Collections.Generic.List<object>();

                if (Selects != null && Selects.Length > 0)
                {
                    //allow for null values if property is null
                    foreach (string selection in Selects)
                    {
                        try
                        {
                            args.Add(context.GetPropertyValue(selection));
                        }
                        catch(Exception err)
                        {
                            //args.Add(null);
                            LOG.Debug(String.Format("Error getting accessing {0} : {1}", Select,  err.Message)); 
                        }
                    }
                }
                else
                {
                    //allow for null values if property is null
                    try
                    {
                        args.Add(context.GetPropertyValue(Select));
                    }
                    catch(Exception err)
                    {
                        //args.Add(null);
                        LOG.Debug(String.Format("Error getting accessing {0} : {1}", Select,  err.Message));
                    }
                }
                
                return args.Count > 0 ? String.Format(Format, args.ToArray()) : null;
            }

            
        }
    }
}