using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Office.Interop.Word;
using System.IO;
using WindowsFormsWordToPDFMonitor.Properties;
using iTextSharp.text.pdf;

namespace WindowsFormsWordToPDFMonitor
{
    class PendingJob
    {
        private string _name;
        private string[] pending;
        private string _done;
        private string _output;

        public PendingJob(string name, string[] pending, string pathDone, string pathOutput)
        {
            this._name = name;
            this.pending = pending;
            this._done = pathDone;
            this._output = pathOutput;
        }

        private void NAR(object o)
        {
            try
            {
                System.Runtime.InteropServices.Marshal.ReleaseComObject(o);
            }
            catch { }
            finally
            {
                o = null;
            }
        }

        internal void Process(Microsoft.Office.Interop.Word.Application wordApp, String templates)
        {
            String outputPath = Path.Combine(Path.GetFullPath(_output), pending[1]);

            if (!File.Exists(outputPath))
            {
                // Open document
                Document doc;

                try
                {
                    doc = wordApp.Documents.Open(Path.Combine(Path.GetFullPath(templates), pending[0]), Visible: true);
                }
                catch
                {
                    throw new Exception("Error opening the file");
                }

                 // Save document
                try
                {
                    doc.SaveAs(FileName: outputPath, FileFormat: WdSaveFormat.wdFormatPDF);
                    doc.Close(SaveChanges: WdSaveOptions.wdDoNotSaveChanges);
                    NAR(doc);
                }
                catch
                {
                    throw new Exception("Error saving the file");
                }
            }
            File.CreateText(Path.Combine(Path.GetFullPath(_done), this._name)).Close();
        }
    }
}