//  Copyright (C) 2013, The Duplicati Team

//  http://www.duplicati.com, opensource@duplicati.com
//
//  This library is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as
//  published by the Free Software Foundation; either version 2.1 of the
//  License, or (at your option) any later version.
//
//  This library is distributed in the hope that it will be useful, but
//  WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using Duplicati.Library.Interface;
using Duplicati.Library.Main.Database;

namespace Duplicati.Library.Main.Operation
{
    internal class CreateBugReportHandler
    {
        private string m_targetpath;
        private Options m_options;
        private CreateLogDatabaseResults m_result;

        public CreateBugReportHandler(string targetpath, Options options, CreateLogDatabaseResults result)
        {
            m_targetpath = targetpath;
            m_options = options;
            m_result = result;
        }
        
        public void Run()
        {
            var ext = System.IO.Path.GetExtension(m_targetpath);
            var module = m_options.CompressionModule;

            if (ext == "" || string.Compare(ext, 1, module, 0, module.Length, StringComparison.OrdinalIgnoreCase) != 0)
                m_targetpath = m_targetpath + "." + module;
        
            if (System.IO.File.Exists(m_targetpath))
                throw new UserInformationException(string.Format("Output file already exists, not overwriting: {0}", m_targetpath));
                
            if (!System.IO.File.Exists(m_options.Dbpath))
                throw new UserInformationException(string.Format("Database file does not exist: {0}", m_options.Dbpath));
                
            m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.BugReport_Running);
            m_result.OperationProgressUpdater.UpdateProgress(0);

            m_result.AddMessage("Scrubbing filenames from database, this may take a while, please wait");

            using(var tmp = new Library.Utility.TempFile())
            {
                System.IO.File.Copy(m_options.Dbpath, tmp, true);
                using(var db = new LocalBugReportDatabase(tmp))
                {
                    m_result.SetDatabase(db);
                    db.Fix();
                }
                
                using(var cm = DynamicLoader.CompressionLoader.GetModule(module, m_targetpath, m_options.RawOptions))
                {
                    using(var cs = cm.CreateFile("log-database.sqlite", Duplicati.Library.Interface.CompressionHint.Compressible, DateTime.UtcNow))
                    using(var fs = System.IO.File.Open(tmp, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.ReadWrite))
                        Library.Utility.Utility.CopyStream(fs, cs);
                        
                    using(var cs = new System.IO.StreamWriter(cm.CreateFile("system-info.txt", Duplicati.Library.Interface.CompressionHint.Compressible, DateTime.UtcNow)))
                        foreach(var line in SystemInfoHandler.GetSystemInfo())
                            cs.WriteLine(line);
                }

                m_result.TargetPath = m_targetpath;
            }               
        }
    }
}

