#!/bin/bash

# Includes
#-----------------------------------------------------------------------------------------------------------------------------------

. /usr/global/lib/music.bash





# System Constants
#-----------------------------------------------------------------------------------------------------------------------------------

   MFM_NAME="music_folder_make"
MFM_VERSION="$Name: music_mk_folder-1_0_0-1 $"





# Print Version
#-----------------------------------------------------------------------------------------------------------------------------------

function version_print()
{
    echo ${MFM_VERSION} | sed -e 's/.*: //' -e 's/-/ /' -e 's/_/\./g' -e 's/\$$//'
}





# Prin Help
#-----------------------------------------------------------------------------------------------------------------------------------

function help_print()
{
    echo "${MFM_NAME} [-h | --help] | [-V | --version] | [-T | --test] [-v | --verbose] [-p | --music_pattern <music_pattern>] [-r | --root_dir <music_root_dir>]"
}





# Arg Parse
#-----------------------------------------------------------------------------------------------------------------------------------

function args_parse()
{
             mode="default"
	  verbose="false"
         root_dir="/opt/music/src"
    music_pattern="/"

    tmp_args=$(getopt -o r:p:ThVv --long root_dir:,music_pattern:,test,help,version,verbose -n "${MFM_NAME}" -- "$@")

    if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi

    # Note the quotes around `$TEMP': they are essential!
    eval set -- "${tmp_args}"

    while true ; do
	case "$1" in
	    # Path options
            -r|--root_dir)                    shift;       root_dir="$1";                     shift;;

	    # Options
            -p|--music_pattern)               shift;  music_pattern="$1";                     shift;;

	    # Mode switches
            -T|--test)                                         mode="test";                   shift;;
	    -h|--help)                                         mode="exit";    help_print;    shift;;
	    -V|--version)                                      mode="exit";    version_print; shift;;

	    # Global options
            -v|--verbose)                                   verbose="true";                   shift;;

	    #   
	    --)                                                                              shift;  break;;
	    *) echo "args_parse internal error [$1] !"; exit 1;;
	esac
    done
}





# Main
#-----------------------------------------------------------------------------------------------------------------------------------

shopt -s extglob

args_parse "$@"

if [[ ${mode} == "exit" ]]
then
    exit 0
else
    if [[ ${mode} == "test" ]]
    then
	dry_run=true
    else
	dry_run=false
    fi
fi



echo "mode: [${mode}]   verbose: [${verbose}]   root_dir: [${root_dir}]   music_pattern: [${music_pattern}]" 1>&2

find ${root_dir} -type d -links 2 | grep -e "${music_pattern}" | grep -v -e "/video" -e "/photo" | sort | (
    while read dir
    do
      if [[ $(basename ${dir}) == "misc" ]]
      then
	  line_echo "${dir}: Misc\r" "${i}"
      else
      
	  src=""
	  dst="${dir}/folder.jpg"

	  for file in ${dir}/cover-front ${dir}/slipcase-front ${dir}/box-front
	  do
	    for suffix in png jpg
	    do
	      if [[ "${src}" == "" ]]
	      then
		  if [[ -f "${file}.${suffix}" ]]
		  then
		      src="${file}.${suffix}"
		  fi
	      fi
	    done
	  done

	  if [[ "${src}" == "" ]]
	  then
	      line_echo "${dir}: BAD!\n" "${i}"
	  else
	      if [[ ( -f "${dst}") && ( -s "${dst}") && ( "${dst}" -nt "${src}") ]]
	      then
		  line_echo "${dir}: Skipping\r" "${i}"
	      else
		  line_echo "${dir}: Processing...\n" "${i}"

		  cmd="anytopnm \"${src}\" | pamscale -xyfit 1024 1024 | pnmtojpeg -quality=95 -optimize >\"${dst}\""
		  exec_cmd "${cmd}"
	      fi
	  fi
      fi

      i=$(($i + 1))
    done

    line_echo ""
)