#!/bin/bash

#set -ex

## Rough statistics on routines (code / notes / blank)

[ -z "$*" ] && { echo 'No branch path(s) given => QUIT'; exit 2; }

branches=$*

export LC_NUMERIC='en_GB.UTF-8' ## Decimal separator
fmt='%-50s %7d(%4.1f%%) %7d(%4.1f%%) %7d(%4.1f%%) %7d\n'

for branch in $branches; do

   cod_sum=0; not_sum=0; blk_sum=0; lin_sum=0
   paths="$branch/NEMOGCM/NEMO $branch/src"

   [ -z "$( ls $paths 2> /dev/null )" ] && continue

   printf "%-50s %7s(ratio) %7s(ratio) %7s(ratio) %7s\n" \
           ''    code       notes      blank      all

   for dir in $( find $paths -type d -mindepth 1 -maxdepth 1 2> /dev/null ); do

      files=$( find $dir -name "*.[fFh]90" 2> /dev/null )

      cod_nb=$( grep -h '^ *[^! ]' $files | wc -l ); not_nb=$( grep -h '^ *!'     $files | wc -l )
      blk_nb=$( grep -h '^ *$'     $files | wc -l )
      lin_nb=$(( cod_nb + not_nb + blk_nb ))

      cod_ratio=$( echo "scale = 3; ( ${cod_nb} / ${lin_nb} ) * 100" | bc )
      not_ratio=$( echo "scale = 3; ( ${not_nb} / ${lin_nb} ) * 100" | bc )
      blk_ratio=$( echo "scale = 3; ( ${blk_nb} / ${lin_nb} ) * 100" | bc )

      dir=$( echo $dir | awk -F/ '{printf "%s/%s/%s", $(NF-2), $(NF-1), $(NF)}' )
      
      printf "$fmt" $dir                                                                 \
                    ${cod_nb} ${cod_ratio} ${not_nb} ${not_ratio} ${blk_nb} ${blk_ratio} \
                    $lin_nb

      cod_sum=$(( cod_sum + cod_nb )); not_sum=$(( not_sum + not_nb ))
      blk_sum=$(( blk_sum + blk_nb )); lin_sum=$(( lin_sum + lin_nb ))

   done

   cod_ratio=$( echo "scale = 3; ( ${cod_sum} / ${lin_sum} ) * 100" | bc )
   not_ratio=$( echo "scale = 3; ( ${not_sum} / ${lin_sum} ) * 100" | bc )
   blk_ratio=$( echo "scale = 3; ( ${blk_sum} / ${lin_sum} ) * 100" | bc )

   branch=$( echo $branch | awk -F/ '{print $NF}' )

   printf "$fmt" $branch                                                                 \
                 ${cod_sum} ${cod_ratio} ${not_sum} ${not_ratio} ${blk_sum} ${blk_ratio} \
                 ${lin_sum}

   echo
   
done

exit 0