#!/bin/ksh
#--------------------------------------------------------------------------------#
# This file is part of the PALM model system.
#
# PALM 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.
#
# PALM 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
# PALM. If not, see <http://www.gnu.org/licenses/>.
#
# Copyright 1997-2021  Leibniz Universitaet Hannover
#--------------------------------------------------------------------------------#
#
# Current revisions:
# -----------------
# 
# 
# Former revisions:
# -----------------
# $Id: process_dvr_output 4843 2021-01-15 15:22:11Z moh.hefny $
# Corrected "Former revisions" section
#
# 2696 2017-12-14 17:12:51Z kanani
# Change in file header (GPL part)
#
# 1310 2014-03-14 08:01:56Z raasch
# update GPL copyright
#
# 1046 2012-11-09 14:38:45Z maronga
# code put under GPL (PALM 3.9)
#
# process_dvr_output - a script processing dvr steering + data files

     # This script determines the number of streams opened by the dvr software
     # and creates one single dvrs- and html-file which allow the dvr-plugin
     # to display all streams in one sequence.

     # Last changes:
     # 16/03/09 - Siggi - Generating the first version



    # Variable declarations + default values
 camera=false
 create_config_file=false
 create_sequence_output=false
 data_catalog=`pwd`
 dvrp_output=rtsp
 file_identifier=all_streams
 groundplate=false
 palm_run_identifier="unknown_run"
 topography=false

 typeset  -i  a acceleration=1 k i j nstream nscenes


    # Read shellscript options
 while  getopts  :a:cd:f:ls option
 do
   case  $option  in
       (a)   acceleration=$OPTARG;;
       (c)   create_config_file=true;;
       (d)   data_catalog=$OPTARG;;
       (f)   file_identifier=$OPTARG;;
       (l)   dvrp_output=local;;
       (s)   create_sequence_output=true;;
       (\?)  printf "\n  +++ unknown option $OPTARG \n"
             printf "\n      allowed option are -d, -f, -l, -s \n"
             exit;;
   esac
 done


    # Create the config file for the streaming server; do nothing else
 if [[ $create_config_file = true ]]
 then
    cp  ${PALM_BIN}/.dvrserver.config  .

       # Entering the BASEDIR, UID and GID into this file
    user_id=`id -u`
    group_id=`id -g`

       # data directory is always the current working directory
    sed "s/<replace by dvr data directory>/./g" .dvrserver.config > .dvrserver.1
    sed "s/<replace by user id>/$user_id/g"    .dvrserver.1 > .dvrserver.2
    sed "s/<replace by group id>/$group_id/g"  .dvrserver.2 > .dvrserver.3
    mv  .dvrserver.3  .dvrserver.config
    rm  .dvrserver.1  .dvrserver.2
    exit
 fi


    # Find out the PALM run identifier
 if [[ -f CPU_MEASURES ]]
 then
    palm_run_identifier=`head -1  CPU_MEASURES`
 fi


    # Process the streaming server output
 if [[ $dvrp_output = rtsp ]]
 then

       # Change to the given directory
    cd $data_catalog


       # Find out the number of streams
    (( i = 0 ))
    while true
    do
       (( i = i + 1 ))
       if (( i < 10 ))
       then
          cstream=0$i
       else
          cstream=$i
       fi

       if [[ $(ls -1 *.* | grep -c $cstream) = 0 ]]
       then
          (( i = i - 1 ))
          break
       fi

          # find out the stream name
       streamname[$i]=`ls -1 ${cstream}_*-ge.dvrs | cut -f1 -d"-"`

          # get addres
       adr[$i]=`grep ADR= ${streamname[$i]}.dvrs | grep '*' | cut -f2 -d"="`

          # get maxbytes
       maxbytes[$i]=`head -1 ${streamname[$i]}.max`

          # get number of frames
       frames[$i]=`tail -1 ${streamname[$i]}.max`

    done

    nstream=$i
    nscenes=$nstream


       # Check, if there are files containing the camera data, the ground plate
       # and topography data.
       # Check the first stream only, because all streams have the same files.
    if [[ -f ${streamname[1]}_camera.max ]]
    then
       camera=true
       adr_camera=`grep ADR= ${streamname[1]}.dvrs | grep 'camera' | cut -f2 -d"="`
       maxbytes_camera=`head -1 ${streamname[1]}_camera.max`
       (( nscenes = nscenes + 1 ))
    fi
    if [[ -f ${streamname[1]}_groundplate.max ]]
    then
       groundplate=true
       adr_groundplate=`echo $adr_camera | sed "s/camera/groundplate/g"`
       maxbytes_groundplate=`head -1 ${streamname[1]}_groundplate.max`
       (( nscenes = nscenes + 1 ))
    fi
    if [[ -f ${streamname[1]}_topography.max ]]
    then
       topography=true
       adr_topography=`echo $adr_camera | sed "s/camera/topography/g"`
       maxbytes_topography=`head -1 ${streamname[1]}_topography.max`
       (( nscenes = nscenes + 1 ))
    fi



       # Start with writing the dvrs file for the combined streams
    dvr_file=${file_identifier}_streaming.dvrs

    echo  "SCENES=$nscenes"  >  $dvr_file

       # First, add the static scenes
    if [[ $camera = true ]]
    then
       echo  "MED=TCP"                    >>  $dvr_file
       echo  "ADR=$adr_camera"            >>  $dvr_file
       echo  "MAXBYTES=$maxbytes_camera"  >>  $dvr_file
       echo  "FRAMES=1"                   >>  $dvr_file
       echo  "FRAMES_P_SEC=0"             >>  $dvr_file
       echo  "SCENEEND"                   >>  $dvr_file
    fi

    if [[ $groundplate = true ]]
    then
       echo  "MED=TCP"                         >>  $dvr_file
       echo  "ADR=$adr_groundplate"            >>  $dvr_file
       echo  "MAXBYTES=$maxbytes_groundplate"  >>  $dvr_file
       echo  "FRAMES=1"                        >>  $dvr_file
       echo  "FRAMES_P_SEC=0"                  >>  $dvr_file
       echo  "SCENEEND"                        >>  $dvr_file
    fi

    if [[ $topography = true ]]
    then
       echo  "MED=TCP"                        >>  $dvr_file
       echo  "ADR=$adr_topography"            >>  $dvr_file
       echo  "MAXBYTES=$maxbytes_topography"  >>  $dvr_file
       echo  "FRAMES=1"                       >>  $dvr_file
       echo  "FRAMES_P_SEC=0"                 >>  $dvr_file
       echo  "SCENEEND"                       >>  $dvr_file
    fi


       # Now add the streams
    (( i = 0 ))
    while (( i < nstream ))
    do

       (( i = i + 1 ))

       echo  "MED=TCP"                   >>  $dvr_file
       echo  "ADR=${adr[$i]}"            >>  $dvr_file
       echo  "MAXBYTES=${maxbytes[$i]}"  >>  $dvr_file
       echo  "FRAMES=${frames[$i]}"      >>  $dvr_file
       echo  "FRAMES_P_SEC=25"           >>  $dvr_file
       echo  "SCENEEND"                  >>  $dvr_file

    done


       # Change path to the current file identifier
       # Remove path because BASEDIR of streaming server is set to "."
#    sed  "s/DATA_DVR/${file_identifier}_dvr/g"  $dvr_file > tmp_file
    sed  "s/DATA_DVR\///g"  $dvr_file > tmp_file
    mv  tmp_file  $dvr_file


       # If there is a dvr configuration file, set the BASEDIR to the parent
       # directory of the above given path (i.e. ".")
    if [[ -f .dvrserver.config ]]
    then
       old_path=`grep  BASEDIR  .dvrserver.config`
       sed  "s&${old_path}&BASEDIR=.&g"  .dvrserver.config  >  .dvrserver.config.new
       mv  .dvrserver.config.new  .dvrserver.config
    fi


       # Create the html file for the combined streames
    cp  01_*-ge.html  tmp.html
    replace=$(echo `grep src= tmp.html`)
    sed "s&${replace}&src=\"${file_identifier}_streaming.dvrs\"&g" tmp.html > tmp1.html
    if [[ "$palm_run_identifier" = "" ]]
    then
       cp  tmp1.html  ${file_identifier}_streaming.html
    else
       sed "s&DATA_DVR/${streamname[1]}/\*\*\*\*\*.dvr (DVR 3D Streaming)&DVR 3D streaming generated by $palm_run_identifier&g"  tmp1.html  >  ${file_identifier}_streaming.html
    fi
    rm  tmp.html  tmp1.html


       # Informative messages
    printf "\n\n  *** processing dvr stream output:"
    printf "\n      number of detected streams = $nstream"
    printf "\n      stream names:"

    (( i = 0 ))
    while (( i < nstream ))
    do

       (( i = i + 1 ))
       printf " ${streamname[$i]}"

    done
    printf "\n"


 else

       # This is the branch for local output (dvrp_output=local).
       # Find out the number of streams.
    (( i = 0 ))
    while true
    do

       (( i = i + 1 ))
       if (( i < 10 ))
       then
          cstream=0$i
       else
          cstream=$i
       fi

       if [[ $(ls -1 *.* | grep -c ${cstream}_) = 0 ]]
       then
          (( i = i - 1 ))
          break
       fi

          # find out the stream name
       streamname[$i]=`ls -1 ${cstream}_*.camera.dvr | cut -f1 -d"."`

    done

       # Exit, if there are no streams.
    [[ $i = 0 ]]  &&  exit

    nstream=$i

    mkdir -p  ${data_catalog}/sequence_data


       # First, merge static scenes into one file
    if [[ -f ${streamname[1]}.camera.dvr ]]
    then
       cat  ${streamname[1]}.camera.dvr  >>  ${data_catalog}/sequence_data/static_scenes.dvr
    fi

    if [[ -f ${streamname[1]}.groundplate.dvr ]]
    then
       cat  ${streamname[1]}.groundplate.dvr  >>  ${data_catalog}/sequence_data/static_scenes.dvr
    fi

    if [[ -f ${streamname[1]}.topography.dvr ]]
    then
       cat  ${streamname[1]}.topography.dvr  >>  ${data_catalog}/sequence_data/static_scenes.dvr
    fi


       # Find out the number of frames
    frames[1]=`grep sequence ${streamname[1]}_00000.html | cut -f2 -d";" | cut -f1 -d'"' | cut -f2 -d"-"`


       # Now, merge the data, frame by frame
    (( j = 0 ))
    while (( j < ${frames[1]} ))
    do

       nframe=`printf "%05d" $j`

       (( i = 0 ))
       while (( i < nstream ))
       do
          (( i = i + 1 ))
          cat  ${streamname[$i]}_$nframe.dvr  >>  ${data_catalog}/sequence_data/$nframe.dvr
       done

       (( j = j + 1 ))

    done


       # Create the html file to be used for the sequence mode
    cp  ${streamname[1]}_00000.html  tmp1.html
    sed  "s&${streamname[1]}_camera.dvr&sequence_data/static_scenes.dvr&g"  tmp1.html  >  tmp2.html
    sed  "s&${streamname[1]}_&sequence_data/&g"  tmp2.html  >  tmp3.html
    if [[ "$palm_run_identifier" = "" ]]
    then
       cp  tmp3.html  ${file_identifier}_sequence.html
    else
       sed "s&sequence_data/%05d.dvr (DVR 3D Sequence)&DVR 3D sequence generated by $palm_run_identifier&g"  tmp3.html  >  ${file_identifier}_sequence.html
    fi
    rm  tmp1.html  tmp2.html  tmp3.html
    mv  ${file_identifier}_sequence.html  ${data_catalog}


       # Informative messages
    printf "\n\n  *** processing dvr local output (using dvrp_output=local):"
    printf "\n      number of detected streams = $nstream"
    printf "\n      stream names:"

    (( i = 0 ))
    while (( i < nstream ))
    do

       (( i = i + 1 ))
       printf " ${streamname[$i]}"

    done
    printf "\n"

 fi


    # Create output for viewing dvr data in sequence mode
 if [[ $create_sequence_output = true ]]
 then

    rm -rf  sequence_data
    mkdir  sequence_data

       # First, merge static scenes into one file
    if [[ $camera = true ]]
    then
       cat  ${streamname[1]}/camera.dvr  >>  sequence_data/static_scenes.dvr
    fi

    if [[ $groundplate = true ]]
    then
       cat  ${streamname[1]}/groundplate.dvr  >>  sequence_data/static_scenes.dvr
    fi

    if [[ $topography = true ]]
    then
       cat  ${streamname[1]}/topography.dvr  >>  sequence_data/static_scenes.dvr
    fi


       # Now, merge the data, frame by frame
    (( j = 0 ))
    (( k = 0 ))
    (( a = 0 ))
    while (( j < ${frames[1]} ))
    do

       rframe=`printf "%05d" $j`

       if (( a == 0 ))
       then

          wframe=`printf "%05d" $k`
          (( k = k + 1 ))

          (( i = 0 ))
          while (( i < nstream ))
          do
             (( i = i + 1 ))
             cat  ${streamname[$i]}/$rframe.dvr  >>  sequence_data/$wframe.dvr
          done


       fi

       (( a = a + 1 ))
       if (( a == acceleration ))
       then
          (( a = 0 ))
       fi

       (( j = j + 1 ))

    done


       # Create the html file to be used for the sequence mode
    cp  ${streamname[1]}.html  tmp1.html
    sed  "s/camera.dvr/static_scenes.dvr/g"  tmp1.html  >  tmp2.html
    sed  "s&${streamname[1]}&sequence_data&g"  tmp2.html  >  tmp3.html
    sed  "s/;0-0/;0-$wframe/g"  tmp3.html  >  tmp4.html
    if [[ "$palm_run_identifier" = "" ]]
    then
       cp  tmp4.html  ${file_identifier}_sequence.html
    else
       sed "s&DATA_DVR/sequence_data/\*\*\*\*\*.dvr (DVR 3D Sequence)&DVR 3D sequence generated by $palm_run_identifier&g"  tmp4.html  >  ${file_identifier}_sequence.html
    fi
    rm  tmp1.html  tmp2.html  tmp3.html  tmp4.html

    printf "      data for using sequence mode generated"

 fi



    # Change back to directory from where script has been called
 cd - > /dev/null  2>&1