#!/bin/bash

if [ ! "$1" ]; then
   echo "Give a path as argument"
   exit 1
fi

function is_seekable
{
   if [ ! "$1" ]; then
      exit 1
   fi

   if [ "$(metaflac --list --block-type=SEEKTABLE "$1" 2> /dev/null)" = "" ]; then
      if metaflac --list --block-type=SEEKTABLE "$1" 2> /dev/null; then
         return 1
      else
         return 0
      fi
   else
      return 0
   fi
}

count=0

find . -iname '*.flac' | while read i
do
        echo "checking $i"
        if ! is_seekable "$i"; then
                metaflac --add-seekpoint=1s "$i"
                echo "* Added seekpoints to file $i"
                let count++
        fi
done

if [ $count -eq 0 ]; then
   echo "There were no flac files without checkpoints in folder $1"
else
   echo "Successfully added seekpoints to $count flac file(s)"
fi