using System;
using System.IO;

namespace XLIMS.CORE.Helpers
{
    public class OpenPsv
    {
        #region Fields

        private readonly dynamic _wordApp;
        private readonly dynamic _wordDocument;
        private readonly dynamic _table;

        private readonly DocViewModel _document;
        private readonly XLAB7Repository _repository;
        private readonly int _copies;

        #endregion

        #region Constructor

        public OpenPsv(DocViewModel document, XLAB7Repository repository, int copies = 1)
        {
            _document = document ?? throw new ArgumentNullException(nameof(document));
            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
            _copies = copies < 1 ? 1 : copies;

            var templatePath = Path.Combine("Resources", "DOCX", "OpenPsv.docx");

            if (!File.Exists(templatePath))
                throw new FileNotFoundException("Шаблон Word не найден", templatePath);

            var wordType = Type.GetTypeFromProgID("Word.Application");
            if (wordType == null)
                throw new InvalidOperationException("Microsoft Word не установлен");

            _wordApp = Activator.CreateInstance(wordType);
            _wordApp.Visible = false;

            _wordDocument = _wordApp.Documents.Open(templatePath);

            if (_wordDocument.Tables.Count < 1)
                throw new InvalidOperationException("В документе отсутствует таблица");

            _table = _wordDocument.Tables[1];
        }

        #endregion

        #region Methods

        private void Replace(string placeholder, string value)
        {
            dynamic range = _wordDocument.Content;
            dynamic find = range.Find;

            find.ClearFormatting();
            find.Text = placeholder;
            find.Replacement.ClearFormatting();
            find.Replacement.Text = value ?? string.Empty;

            find.Execute(
                Replace: 2,   // wdReplaceAll
                Wrap: 1       // wdFindContinue
            );
        }

        public void Print()
        {
            Replace("number", _document.Number);
            Replace("div", _document.CurrentFRPD.NMFRPD);
            Replace("date", ((DateTime)_document.Date).ToLongDateString());
            Replace("count", _document.AllEKZMK.Count.ToString());
            Replace("next", ((DateTime)_document.Date).AddDays(30).ToLongDateString());
            Replace("person", _document.CurrentPRSNPR.PRFIO);

            int rowIndex = 2;
            int index = 1;

            foreach (var group in _document.AllGroupsEKZMK)
            {
                _table.Rows.Add();

                _table.Cell(rowIndex, 1).Range.Text = index.ToString();
                _table.Cell(rowIndex, 2).Range.Text =
                    group.CurrentEKZMK.CurrentEKZ.IDTPRZNavigation
                        .IDTIPSNavigation.IDSPNMTPNavigation.NMTP;

                _table.Cell(rowIndex, 3).Range.Text =
                    group.CurrentEKZMK.CurrentEKZ.IDTPRZNavigation
                        .IDTIPSNavigation.TP;

                _table.Cell(rowIndex, 4).Range.Text =
                    group.CurrentEKZMK.CurrentEKZ.IDTPRZNavigation.DPZN;

                if (group.GroupEKZMK.Count() > 3)
                {
                    _table.Cell(rowIndex, 5).Range.Text =
                        group.GroupEKZMK.Count().ToString();
                }
                else
                {
                    foreach (var item in group.GroupEKZMK)
                    {
                        _table.Cell(rowIndex, 5).Range.Text +=
                            item.CurrentEKZ.NNZV + ", ";
                    }
                }

                _table.Cell(rowIndex, 6).Range.Text = group.Count.ToString();
                _table.Cell(rowIndex, 9).Range.Text = group.CurrentEKZMK.DSEKZMK;

                rowIndex++;
                index++;
            }

            _wordDocument.PrintOut(Copies: _copies);
            _wordDocument.Close(false);
            _wordApp.Quit();
        }

        #endregion
    }
}