/* 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 CaptionsInc : SubtitlesFormat
    {
        public override string Name
        {
            get { return "Captions Inc (*.txt)"; }
        }
        public override string Description
        {
            get { return "Captions Inc\n\nWARNING !!\nDoesn't support multilines, so it will take the first line only from each subtitle text.\n\nThis format type has this view:\n00:00:24:00 00:00:30:00\n{0 [1 text 1\n\n00:00:31:00 00:00:37:00\n\n........."; }
        }
        public override string[] Extensions
        {
            get { string[] exs = { ".txt" }; return exs; }
        }
        public override bool CheckFile(string filePath, Encoding encoding)
        {
            string[] Lines = File.ReadAllLines(filePath, encoding);
            bool Yes = false;
            if (Lines.Length > 0)
            {
                try
                {
                    if (Lines[0].Substring(0, "*Timecode type".Length) == "*Timecode type")
                    {
                        Yes = true;
                    }
                }
                catch { }
            }
            return Yes;
        }
        public override void Load(string filePath, Encoding encoding)
        {
            if (LoadStarted != null)
                LoadStarted(this, new EventArgs());
            this.FilePath = filePath;
            string[] Lines = File.ReadAllLines(FilePath, encoding);
            this.SubtitleTrack = new SubtitlesTrack("Imported");
            for (int i = 0; i < Lines.Length; i++)
            {
                try
                {
                    if (Lines[i] != "")
                    {
                        Subtitle Sub = new Subtitle();
                        string[] TextLines = Lines[i].Split(new char[] { ' ' });
                        Sub.StartTime = TimeFormatConvertor.From_TimeSpan_Milli(TextLines[0], MillisecondLength.N2);
                        Sub.EndTime = TimeFormatConvertor.From_TimeSpan_Milli(TextLines[1], MillisecondLength.N2);
                        i++;
                        Sub.Text = SubtitleText.FromString(Lines[i].Substring(6, Lines[i].Length - 6));
                        i++;
                        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>();
            Lines.Add("*Timecode type: PAL/EBU");
            Lines.Add("");
            for (int i = 0; i < this.SubtitleTrack.Subtitles.Count; i++)
            {
                Lines.Add(TimeFormatConvertor.To_TimeSpan_Milli(this.SubtitleTrack.Subtitles[i].StartTime, ":", MillisecondLength.N2) +
                    " " + TimeFormatConvertor.To_TimeSpan_Milli(this.SubtitleTrack.Subtitles[i].EndTime, ":", MillisecondLength.N2));
                Lines.Add("{0 [1 " + this.SubtitleTrack.Subtitles[i].Text.TextLines[0].ToString());
                Lines.Add("");
                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;
    }
}