/* This file is part of AHD Subtitles Maker Professional
   A program can create and edit subtitles

   Copyright © Ala I Hadid 2009 - 2012

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using AHD.SM.ASMP;

namespace AHD.SM.Formats
{
    public class MacSUB : SubtitlesFormat
    {
        public override string Name
        {
            get { return "Mac SUB (*.scr)"; }
        }

        public override string Description
        {
            get { return "Mac SUB\n\nThis format type has this view:\n/132\nText1\n/142\n/152\nText2\n/163\n....."; }
        }

        public override string[] Extensions
        {
            get { string[] _Extensions = { ".scr" }; return _Extensions; }
        }

        public override bool CheckFile(string filePath, Encoding encoding)
        {
            string[] Lines = File.ReadAllLines(filePath, encoding);
            if (Lines.Length > 0)
            {
                try
                {
                    if (Lines[0].Substring(0, 1) == "/")
                    { return true; }
                }
                catch { }
            }
            return false;
        }

        public override void Load(string filePath, Encoding encoding)
        {
            if (LoadStarted != null)
                LoadStarted(this, new EventArgs());
            this.FilePath = filePath;
            this.SubtitleTrack = new SubtitlesTrack();
            string[] Lines = File.ReadAllLines(FilePath, encoding);

            Frm_Framerate Fram = new Frm_Framerate(this);
            Fram.ShowDialog();
            for (int i = 0; i < Lines.Length; i++)
            {
                try
                {
                    Subtitle Sub = new Subtitle();
                    if (Lines[i].Substring(0, 1) == "/")
                    {
                        Sub.StartTime = TimeFormatConvertor.From_Frame(Lines[i].Substring(1, Lines[i].Length - 1), FrameRate);
                        i++;
                        string text = Lines[i];
                        i++;
                        while (Lines[i].Length > 1)
                        {
                            if (Lines[i].Substring(0, 1) != "/")
                            { text += "\n" + Lines[i]; i++; }
                            else { break; }
                        }
                        Sub.Text = SubtitleText.FromString(text);
                        Sub.EndTime = TimeFormatConvertor.From_Frame(Lines[i].Substring(1, Lines[i].Length - 1), FrameRate);
                        this.SubtitleTrack.Subtitles.Add(Sub);
                    }
                }
                catch { }
                int x = (100 * i) / Lines.Length;
                if (Progress != null)
                    Progress(this, new ProgressArgs(x, "Loading file ...."));
            }
            if (Progress != null)
                Progress(this, new ProgressArgs(100, "Load Completed."));
            if (LoadFinished != null)
                LoadFinished(this, new EventArgs());
        }

        public override void Save(string filePath, Encoding encoding)
        {
            if (SaveStarted != null)
                SaveStarted(this, new EventArgs());
            this.FilePath = filePath;
            List<string> Lines = new List<string>();
            for (int i = 0; i < this.SubtitleTrack.Subtitles.Count; i++)
            {
                Lines.Add("/" + TimeFormatConvertor.To_Frame(this.SubtitleTrack.Subtitles[i].StartTime, FrameRate));
                for (int j = 0; j < this.SubtitleTrack.Subtitles[i].Text.TextLines.Count; j++)
                { Lines.Add(this.SubtitleTrack.Subtitles[i].Text.TextLines[j].ToString()); }

                Lines.Add("/" + TimeFormatConvertor.To_Frame(this.SubtitleTrack.Subtitles[i].EndTime, FrameRate));

                int x = (100 * i) / this.SubtitleTrack.Subtitles.Count;
                if (Progress != null)
                    Progress(this, new ProgressArgs(x, "Saving ...."));
            }
            File.WriteAllLines(FilePath, Lines.ToArray(), encoding);
            if (Progress != null)
                Progress(this, new ProgressArgs(100, "Save Completed."));
            if (SaveFinished != null)
                SaveFinished(this, new EventArgs());
        }

        public override event EventHandler<ProgressArgs> Progress;

        public override event EventHandler LoadStarted;

        public override event EventHandler LoadFinished;

        public override event EventHandler SaveStarted;

        public override event EventHandler SaveFinished;

        public override bool HasFrameRate
        {
            get
            {
                return true;
            }
        }
        public override bool HasOptions
        {
            get
            {
                return true;
            }
        }
        public override System.Windows.Forms.UserControl OptionsControl
        {
            get
            {
                return new Cl_frameRate(this);
            }
        }
    }
}
