#!/bin/bash 

# Copyright 2014 QCRI (author: Ahmed Ali)
# Apache 2.0


echo $0 "$@"

galeData=$(utils/make_absolute.sh "${@: -1}" ); 
wavedir=$galeData/wav
mkdir -p $wavedir


length=$(($#-1))
args=${@:1:$length}

# check that sox is installed 
which sox  &>/dev/null
if [[ $? != 0 ]]; then 
 echo "sox is not installed"
 exit 1 
fi


for var in $args; do
  CD=$(basename $var)
  mkdir -p $wavedir/$CD
  find $var -type f -name *.wav | while read file; do
    f=$(basename $file)
    if [[ ! -L "$wavedir/$CD/$f" ]]; then
      ln -sf $file $wavedir/$CD/$f
    fi
done
  
  #copy and convert the flac to wav
  find $var -type f -name *.flac  | while read file; do
    f=$(basename $file)
    
    if [[ ! -L "$wavedir/$CD/$f" ]]; then
      ln -sf $file $wavedir/$CD/$f
    fi
  done
done

(
for w in `find $wavedir -name *.wav` ; do 
  base=`basename $w .wav`
  fullpath=`utils/make_absolute.sh $w`
  echo "$base sox $fullpath -r 16000 -t wav - |"
done

for w in `find $wavedir -name *.flac` ; do 
  base=`basename $w .flac`
  fullpath=`utils/make_absolute.sh $w`
  echo "$base sox $fullpath -r 16000 -t wav - |"
done
)  | sort -u > $galeData/wav.scp

#clean 
rm -fr $galeData/id$$ $galeData/wav$$
echo data prep audio succeded

exit 0