using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AirgasExportLogParser
{
    public class Program
    {
        static void Main(string[] args)
        {
            if (args.Length < 2)
            {
                Console.WriteLine("Usage : AirgasExportLogParser.exe -f <path to log file>");
            }
            else
            {
                string commandLineOption = args[0];
                if (!commandLineOption.StartsWith("-f"))
                {
                    Console.WriteLine("Usage : AirgasExportLogParser.exe -f <path to log file>");
                    Console.WriteLine("-------------------------------------------------------");
                    Console.WriteLine("-f is the only command switch you can use.");
                }
                else
                {
                    string fileName = args[1];
                    FileInfo fileInfo = new FileInfo(fileName);
                    if (!fileInfo.Exists)
                    {
                        Console.WriteLine("Usage : AirgasExportLogParser.exe -f <path to log file>");
                        Console.WriteLine("-------------------------------------------------------");
                        Console.WriteLine("The specified file did not exist.");
                    }
                    else
                    {
                        if (fileInfo.Length <= 0)
                        {
                            Console.WriteLine("Usage : AirgasExportLogParser.exe -f <path to log file>");
                            Console.WriteLine("-------------------------------------------------------");
                            Console.WriteLine("The log file is empty");
                        }
                        else
                        {
                            LogParser logParser = new LogParser(fileInfo);
                            logParser.Parse();

                            foreach (KeyValuePair<long, ExportFileInfo> item in logParser.LogItems)
                            {
                                long DWDocId = item.Key;
                                ExportFileInfo exportFileInfo = item.Value;

                                foreach (string metaFile in item.Value.MetaFiles)
                                {
                                    item.Value.Commands.Add(
                                        String.Format(
                                            "DEL \"{0}\"",
                                            new object[]
                                            {
                                                metaFile
                                            }
                                        )
                                    );
                                }

                                if(item.Value.ExportFiles.Count > 1)
                                {

                                   String exportPdfFilePath = Path.Combine(
                                        Path.GetDirectoryName(item.Value.ExportFiles[0]),
                                        String.Format(
                                            "MP_DWDOCID_{0}.pdf",
                                            new object[] {
                                                item.Key.ToString("0000000000")
                                            }
                                        )
                                    );

                                    string exportFiles = String.Empty;

                                    foreach(string exportFile in item.Value.ExportFiles)
                                    {
                                        exportFiles += "\"" + exportFile + "\" ";

                                    }

                                    string tiff2pdfcommand = String.Format(
                                        "gm convert {0} {1}",
                                        new object[]
                                        {
                                            exportFiles.Trim(),
                                            "\"" + exportPdfFilePath + "\""
                                            
                                        }
                                    );

                                    item.Value.Commands.Add(tiff2pdfcommand);
                                    foreach(var exportFile in item.Value.ExportFiles)
                                    {
                                        item.Value.Commands.Add(
                                            String.Format(
                                                "DEL \"{0}\"",
                                                new object[]
                                                {
                                                    exportFile
                                                }
                                            )
                                        );
                                    }
                                    item.Value.ExportFiles.Clear();
                                    item.Value.ExportFiles.Add(exportPdfFilePath);
                                        
                                }

                            }

                            List<String> commandList = new List<String>();
                            List<String> exportFileList = new List<String>();
                            exportFileList.Add("DWDOCID,EXPORT_FILE");


                            foreach (KeyValuePair<long,ExportFileInfo> logItem in logParser.LogItems)
                            {
                                foreach(String command in logItem.Value.Commands)
                                {
                                    commandList.Add(command);
                                }
                                foreach(String exportFile in logItem.Value.ExportFiles)
                                {
                                    exportFileList.Add( logItem.Key.ToString() + ",\"" + exportFile + "\"");
                                }
                            }

                            

                            File.WriteAllLines(Path.Combine(fileInfo.DirectoryName, "commands.bat"), commandList);
                            File.WriteAllLines(Path.Combine(fileInfo.DirectoryName, "exportfiles.csv"), exportFileList);


                        }
                    }
                }
            }
        }
    }
}