using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;

namespace Handbrake.Functions
{
    class QueryParser
    {

        // All the Main Window GUI options
        #region Varibles
 
        private string q_source;
        /// <summary>
        /// Returns a String 
        /// Full path of the source.
        /// </summary>
        public string Source
        {
            get
            {
                return this.q_source;
            }
        }

        private string q_destination;
        /// <summary>
        /// Returns a String 
        /// Full path of the destination.
        /// </summary>
        public string Destination
        {
            get
            {
                return this.q_destination;
            }
        }

        private string q_format;
        /// <summary>
        /// Returns a String 
        /// Full path of the destination.
        /// </summary>
        public string Format
        {
            get
            {
                return this.q_format;
            }
        }

        private int q_dvdTitle;
        /// <summary>
        /// Returns an Integer
        /// DVD Title number.
        /// </summary>
        public int DVDTitle
        {
            get
            {
                return this.q_dvdTitle;
            }
        }

        private int q_chaptersStart;
        /// <summary>
        /// Returns an Int
        /// DVD Chapter number or chapter range.
        /// </summary>
        public int DVDChapterStart
        {
            get
            {
                return this.q_chaptersStart;
            }
        }

        private int q_chaptersFinish;
        /// <summary>
        /// Returns an Int
        /// DVD Chapter number or chapter range.
        /// </summary>
        public int DVDChapterFinish
        {
            get
            {
                return this.q_chaptersFinish;
            }
        }

        private string q_videoEncoder;
        /// <summary>
        /// Returns an String
        /// The Video Encoder used.
        /// </summary>
        public string VideoEncoder
        {
            get
            {
                return this.q_videoEncoder;
            }
        }

        private string q_audioEncoder;
        /// <summary>
        /// Returns an String
        /// The Audio Encoder used.
        /// </summary>
        public string AudioEncoder
        {
            get
            {
                return this.q_audioEncoder;
            }
        }

        private int q_videoWidth;
        /// <summary>
        /// Returns an Int
        /// The selected Width for the encoding.
        /// </summary>
        public int Width
        {
            get
            {
                return this.q_videoWidth;
            }
        }

        private int q_videoHeight;
        /// <summary>
        /// Returns an Int
        /// The selected Height for the encoding.
        /// </summary>
        public int Height
        {
            get
            {
                return this.q_videoHeight;
            }
        }

        private string q_cropValues;
        /// <summary>
        /// Returns an String
        /// Cropping values.
        /// </summary>
        public string CropValues
        {
            get
            {
                return this.q_cropValues;
            }
        }

        private string q_croptop;
        /// <summary>
        /// Returns an String
        /// Cropping values.
        /// </summary>
        public string CropTop
        {
            get
            {
                return this.q_croptop;
            }
        }

        private string q_cropbottom;
        /// <summary>
        /// Returns an String
        /// Cropping values.
        /// </summary>
        public string CropBottom
        {
            get
            {
                return this.q_cropbottom;
            }
        }

        private string q_cropLeft;
        /// <summary>
        /// Returns an String
        /// Cropping values.
        /// </summary>
        public string CropLeft
        {
            get
            {
                return this.q_cropLeft;
            }
        }

        private string q_cropRight;
        /// <summary>
        /// Returns an String
        /// Cropping values.
        /// </summary>
        public string CropRight
        {
            get
            {
                return this.q_cropRight;
            }
        }

        private Boolean q_detelecine;
        /// <summary>
        /// Returns a boolean to indicate wither DeTelecine is on or off
        /// </summary>
        public Boolean DeTelecine
        {
            get
            {
                return this.q_detelecine;
            }
        }

        private Boolean q_deBlock;
        /// <summary>
        /// Returns a boolean to indicate wither DeBlock is on or off.
        /// </summary>
        public Boolean DeBlock
        {
            get
            {
                return this.q_deBlock;
            }
        }

        private string q_deinterlace;
        /// <summary>
        /// Returns a string with the De-Interlace option used.
        /// </summary>
        public string DeInterlace
        {
            get
            {
                return this.q_deinterlace;
            }
        }

        private string q_denoise;
        /// <summary>
        /// Returns a string with the DeNoise option used.
        /// </summary>
        public string DeNoise
        {
            get
            {
                return this.q_denoise;
            }
        }

        private Boolean q_anamorphic;
        /// <summary>
        /// Returns a boolean to indicate wither Anamorphic is on or off.
        /// </summary>
        public Boolean Anamorphic
        {
            get
            {
                return this.q_anamorphic;
            }
        }

        private Boolean q_chapterMarkers;
        /// <summary>
        /// Returns a boolean to indicate wither Chapter Markers is on or off.
        /// </summary>
        public Boolean ChapterMarkers
        {
            get
            {
                return this.q_chapterMarkers;
            }
        }

        private Boolean q_grayscale;
        /// <summary>
        /// Returns a boolean to indicate wither Grayscale is on or off.
        /// </summary>
        public Boolean Grayscale
        {
            get
            {
                return this.q_grayscale;
            }
        }

        private Boolean q_twoPass;
        /// <summary>
        /// Returns a boolean to indicate wither Two Pass Encoding is on or off.
        /// </summary>
        public Boolean TwoPass
        {
            get
            {
                return this.q_twoPass;
            }
        }

        private Boolean q_turboFirst;
        /// <summary>
        /// Returns a boolean to indicate wither Chapter Markers is on or off.
        /// </summary>
        public Boolean TurboFirstPass
        {
            get
            {
                return this.q_turboFirst;
            }
        }

        private Boolean q_largeMp4;
        /// <summary>
        /// Returns a boolean to indicate wither Larger MP4 files is on or off.
        /// </summary>
        public Boolean LargeMP4
        {
            get
            {
                return this.q_largeMp4;
            }
        }

        private string q_videoFramerate;
        /// <summary>
        /// Returns a string with the video Framerate
        /// </summary>
        public string VideoFramerate
        {
            get
            {
                return this.q_videoFramerate;
            }
        }

        private string q_avgBitrate;
        /// <summary>
        /// Returns a string with the average video bitrate
        /// </summary>
        public string AverageVideoBitrate
        {
            get
            {
                return this.q_avgBitrate;
            }
        }

        private string  q_videoTargetSize;
        /// <summary>
        /// Returns a string with the video target size
        /// </summary>
        public string VideoTargetSize
        {
            get
            {
                return this.q_videoTargetSize;
            }
        }

        private int q_videoQuality;
        /// <summary>
        /// Returns a int with the video quality value
        /// </summary>
        public int VideoQuality
        {
            get
            {
                return this.q_videoQuality;
            }
        }

        private Boolean q_crf;
        /// <summary>
        /// Returns a boolean to indicate if CRF is on or off.
        /// </summary>
        public Boolean CRF
        {
            get
            {
                return this.q_crf;
            }
        }

        private string q_audioBitrate;
        /// <summary>
        /// Returns a string with the audio bitrate
        /// </summary>
        public string AudioBitrate
        {
            get
            {
                return this.q_audioBitrate;
            }
        }

        private string q_audioSamplerate;
        /// <summary>
        /// Returns a string with the audio sample rate
        /// </summary>
        public string AudioSampleBitrate
        {
            get
            {
                return this.q_audioSamplerate;
            }
        }

        private string q_audioTrack1;
        /// <summary>
        /// Returns a string with the First selected Audio track
        /// </summary>
        public string AudioTrack1
        {
            get
            {
                return this.q_audioTrack1;
            }
        }

        private string q_audioTrackMix;
        /// <summary>
        /// Returns a string with the First selected Audio track Mix
        /// </summary>
        public string AudioTrackMix
        {
            get
            {
                return this.q_audioTrackMix;
            }
        }

        private string q_subtitles;
        /// <summary>
        /// Returns a string with the selected subtitle track
        /// </summary>
        public string Subtitles
        {
            get
            {
                return this.q_subtitles;
            }
        }

        private string q_h264;
        /// <summary>
        /// Returns a string with the Advanced H264 query string
        /// </summary>
        public string H264Query
        {
            get
            {
                return this.q_h264;
            }
        }
        private Boolean q_verbose;
        /// <summary>
        /// Returns a string with the Advanced H264 query string
        /// </summary>
        public Boolean Verbose
        {
            get
            {
                return this.q_verbose;
            }
        }
        #endregion

        // Takes in a query which can be in any order and parses it. All varibles are then set so they can be used elsewhere.
        public static QueryParser Parse(String input)
        {
            QueryParser thisQuery = new QueryParser();

            #region reg exp 
            //Source
            Regex r1 = new Regex(@"(-i)(?:\s\"")([a-zA-Z0-9:\\\s\.]+)(?:\"")");
            Match source = r1.Match(input.Replace('"', '\"'));
            Match title = Regex.Match(input, @"-t ([0-9]*)");
            Match chapters = Regex.Match(input, @"-c ([0-9-]*)");
            Match format = Regex.Match(input, @"-f ([a-z0-9a-z0-9a-z0-9]*)");
            //-f mp4

            //Destination
            Regex r2 = new Regex(@"(-o)(?:\s\"")([a-zA-Z0-9:\\\s\.]+)(?:\"")");
            Match destination = r2.Match(input.Replace('"', '\"'));
            Match width = Regex.Match(input, @"-w ([0-9]*)");
            Match height = Regex.Match(input, @"-l ([0-9]*)");
            Match videoEncoder = Regex.Match(input, @"-e ([a-zA-Z0-9]*)");
            Match audioEncoder = Regex.Match(input, @"-E ([a-zA-Z0-9]*)");

            //Picture Settings Tab
            Match deinterlace = Regex.Match(input, @"--deinterlace=([a-z]*)");
            Match denoise = Regex.Match(input, @"--denoise=([a-z]*)");
            Match deblock = Regex.Match(input, @"--deblock");
            Match detelecine = Regex.Match(input, @"--detelecine");
            Match anamorphic = Regex.Match(input, @"-p ");
            Match chapterMarkers = Regex.Match(input, @"-m");
            Match crop = Regex.Match(input, @"--crop ([0-9]):([0-9]):([0-9]):([0-9])");

            //Video Settings Tab
            Match videoFramerate = Regex.Match(input, @"-r ([0-9]*)");
            Match videoBitrate = Regex.Match(input, @"-b ([0-9]*)");
            Match videoQuality = Regex.Match(input, @"-q ([0-9.]*)");
            Match videoFilesize = Regex.Match(input, @"-S ([0-9.]*)");
            Match CRF = Regex.Match(input, @"-Q");
            Match twoPass = Regex.Match(input, @"-2");
            Match turboFirstPass = Regex.Match(input, @"-T");
            Match grayscale = Regex.Match(input, @"-g");
            Match largerMp4 = Regex.Match(input, @"-4");

            //Audio Settings Tab
            Match subtitles = Regex.Match(input, @"-s ([0-9]*)");
            Match audioBitrate = Regex.Match(input, @"-B ([0-9]*)");
            Match audioSampleRate = Regex.Match(input, @"-R ([0-9.]*)");
            Match audioChannelsMix = Regex.Match(input, @"-6 ([0-9a-z0-9]*)");  // 1 -6 dpl2 // Broken
            Match audioChannel = Regex.Match(input, @"-a ([0-9]*)");

            //H264 Tab
            Match x264 = Regex.Match(input, @"-x ([a-zA-Z0-9=:-]*)");
            
            //Program Options
            Match verbose = Regex.Match(input, @"-v");
            #endregion

            try
            {
                //
                // Source
                //
                #region Source Tab
   
                thisQuery.q_source = source.ToString().Replace("-i ", "").Replace("\"", "");
                if (title.Success != false)
                {
                    thisQuery.q_dvdTitle = int.Parse(title.ToString().Replace("-t ", ""));
                }

                if (chapters.Success != false)
                {
                     string[] actTitles = new string[2];
                     actTitles = chapters.ToString().Replace("-c ", "").Split('-');
                     thisQuery.q_chaptersStart = int.Parse(actTitles[0]);
                     thisQuery.q_chaptersFinish = int.Parse(actTitles[1]);
                 }

                 if (format.Success != false)
                 {
                     
                     thisQuery.q_format = format.ToString().Replace("-f ", "");
                 }
                #endregion

                //
                // Destination
                //
                #region Destination
                 thisQuery.q_destination = destination.ToString().Replace("-o ","").Replace("\"", "");

                 string videoEncoderConvertion;
                 string audioEncoderConvertion;

                 videoEncoderConvertion = videoEncoder.ToString().Replace("-e ", "");
                 switch (videoEncoderConvertion)
                 {
                    case "ffmpeg":
                        videoEncoderConvertion = "Mpeg 4";
                        break;
                    case "xvid":
                        videoEncoderConvertion = "Xvid";
                        break;
                    case "x264":
                        videoEncoderConvertion = "H.264";
                        break;
                    case "x264b13":
                        videoEncoderConvertion = "H.264 Baseline 1.3";
                        break;
                    case "x264b30":
                        videoEncoderConvertion = "H.264 (iPod)";
                        break;
                    default:
                        videoEncoderConvertion = "Mpeg 4";
                        break;
                 }
                 thisQuery.q_videoEncoder = videoEncoderConvertion;

                 audioEncoderConvertion = audioEncoder.ToString().Replace("-E ", "");
                 switch (audioEncoderConvertion)
                 {
                    case "faac":
                        audioEncoderConvertion = "AAC";
                        break;
                    case "lame":
                        audioEncoderConvertion = "MP3";
                        break;
                    case "vorbis":
                        audioEncoderConvertion = "Vorbis";
                        break;
                    case "ac3":
                        audioEncoderConvertion = "AC3";
                        break;
                    default:
                        audioEncoderConvertion = "AAC";
                        break;
                 }
                 thisQuery.q_audioEncoder =audioEncoderConvertion;


                 if (width.Success != false)
                 {
                    thisQuery.q_videoWidth = int.Parse(width.ToString().Replace("-w ", ""));
                 }
                 if (height.Success != false)
                 {
                    thisQuery.q_videoHeight = int.Parse(height.ToString().Replace("-l ", ""));
                 }
                 #endregion

                //
                //Picture Settings Tab
                //
                #region Picture Tab
                 if (crop.Success != false)
                 {
                    thisQuery.q_cropValues = crop.ToString().Replace("--crop ", "");
                    string[] actCropValues = new string[3];
                    actCropValues = thisQuery.q_cropValues.Split(':');
                    thisQuery.q_croptop = actCropValues[0];
                    thisQuery.q_cropbottom = actCropValues[1];
                    thisQuery.q_cropLeft = actCropValues[2];
                    thisQuery.q_cropRight = actCropValues[3];
                 }

                 thisQuery.q_detelecine = detelecine.Success;
                 thisQuery.q_deBlock = deblock.Success;

                 thisQuery.q_deinterlace = "None";
                 if (deinterlace.Success != false)
                 {
                     switch (deinterlace.ToString().Replace("--deinterlace=", ""))
                     {
                         case "fast":
                             thisQuery.q_deinterlace = "Original (Fast)";
                             break;
                         case "slow":
                             thisQuery.q_deinterlace = "yadif (Slow)";
                             break;
                         case "slower":
                             thisQuery.q_deinterlace = "yadif + mcdeint (Slower)";
                             break;
                         case "slowest":
                             thisQuery.q_deinterlace = "yadif + mcdeint (Slowest)";
                             break;
                         default:
                             thisQuery.q_deinterlace = "None";
                             break;
                     }
                 }

                 thisQuery.q_denoise = "None";
                 if (denoise.Success != false)
                 {
                     switch (denoise.ToString().Replace("--denoise=", ""))
                     {
                         case "weak":
                             thisQuery.q_denoise = "Weak";
                             break;
                         case "medium":
                             thisQuery.q_denoise = "Medium";
                             break;
                         case "strong":
                             thisQuery.q_denoise = "Strong";
                             break;
                         default:
                             thisQuery.q_denoise = "None";
                             break;
                     }
                    
                 }
                 thisQuery.q_anamorphic = anamorphic.Success;
                 thisQuery.q_chapterMarkers = chapterMarkers.Success;
                 #endregion

                //
                //Video Settings Tab
                //
                #region Video
                thisQuery.q_grayscale = grayscale.Success;
                thisQuery.q_twoPass = twoPass.Success;
                thisQuery.q_turboFirst = turboFirstPass.Success;
                thisQuery.q_largeMp4 = largerMp4.Success;
                if (videoFramerate.Success != false)
                {
                    thisQuery.q_videoFramerate = videoFramerate.ToString().Replace("-r ", "");
                }
                if (videoBitrate.Success != false)
                {
                    thisQuery.q_avgBitrate = videoBitrate.ToString().Replace("-b ", "");
                }
                if (videoFilesize.Success != false)
                {
                    thisQuery.q_videoTargetSize = videoFilesize.ToString().Replace("-S ", "");
                }

                double qConvert = 0;
                if (videoQuality.Success != false)
                {
                    qConvert = double.Parse(videoQuality.ToString().Replace("-q ", "")) * 100;
                    qConvert = System.Math.Ceiling(qConvert);
                    thisQuery.q_videoQuality = int.Parse(qConvert.ToString());
                }
                thisQuery.q_crf = CRF.Success;
                #endregion

                //
                //Audio Settings Tab
                //
                #region Audio
                if (audioBitrate.Success != false)
                {
                    thisQuery.q_audioBitrate = audioBitrate.ToString().Replace("-B ", "");
                }
                if (audioSampleRate.Success != false)
                {
                    thisQuery.q_audioSamplerate = audioSampleRate.ToString().Replace("-R ", "");
                }
                if (audioChannel.Success != false)
                {
                    thisQuery.q_audioTrack1 = audioChannel.ToString().Replace("-a ", "");
                }
                else
                {
                    thisQuery.q_audioTrack1 = "Automatic";
                }

                thisQuery.q_audioTrackMix = "Automatic";
                if (audioChannelsMix.Success != false)
                {
                    switch (audioChannelsMix.ToString().Replace("-6 ", "").Replace(" ",""))
                    {
                        case "mono":
                            thisQuery.q_audioTrackMix = "Mono";
                            break;
                        case "stereo":
                            thisQuery.q_audioTrackMix = "Stereo";
                            break;
                        case "dpl1":
                            thisQuery.q_audioTrackMix = "Dolby Surround";
                            break;
                        case "dpl2":
                            thisQuery.q_audioTrackMix = "Dolby Pro Logic II";
                            break;
                        case "6ch":
                            thisQuery.q_audioTrackMix = "6 Channel Discrete";
                            break;
                        default:
                            thisQuery.q_audioTrackMix = "Automatic";
                            break;
                    }
                   
                }
                if (subtitles.Success != false)
                {
                    thisQuery.q_subtitles = subtitles.ToString().Replace("-s ", "");
                }
                else
                {
                    thisQuery.q_subtitles = "None";
                }
                #endregion

                //
                //H264 Tab
                //
                if (x264.Success != false)
                {
                    thisQuery.q_h264 = x264.ToString().Replace("-x ", "");
                }

                //
                //Progam Options
                //
                thisQuery.q_verbose = verbose.Success;
            }
            catch (Exception exc)
            {
                MessageBox.Show("An error has occured in the Query Parser. Please report this error on the forum in the 'Windows' support section. \n\n" + exc.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            return thisQuery;
        }
    }
}