#!/bin/bash
#set -x

BEZFILE=~/skripty/bruno_bezmaso.txt
MASOFILE=~/skripty/bruno_maso.txt
JEDNOU=~/skripty/bruno_jednou_tydne.txt
FORTUNEFILE=~/skripty/fortunes.txt
FORTUNETMP=~/skripty/tmp/lastfortune_jidelnicek
LASTFORTUNE="`cat $FORTUNETMP 2>/dev/null`"
[ "$LASTFORTUNE" = "" ] && LASTFORTUNE="0"
[ "$LASTFORTUNE" -ge "`cat $FORTUNEFILE |wc -l`" ] && LASTFORTUNE="0"
set $((LASTFORTUNE= $LASTFORTUNE + 1 ))

# Den v tydnu, 1 = pondeli
BEZMASO="1"

WEEKDAY="`date +%u`"

BEZLINES="`wc -l $BEZFILE |sed s/\ .*//g`"
MASOLINES="`wc -l $MASOFILE |sed s/\ .*//g`"

ONEDAY="0"
while [ "$ONEDAY" -ge "8" ] || [ "$ONEDAY" -lt "1" ]; do
  ONEDAY="`echo $RANDOM |tail -c 2`"
  if [ "$ONEDAY" = "$BEZMASO" ]; then
    ONEDAY="0"
  fi
done

FORTUNELINE="0"

randomizuj(){
BEZLINE="0"
BEZTAIL="`echo $BEZLINES |wc -c`"
MASOLINE="0"
MASOTAIL="`echo $MASOLINES |wc -c`"

while [ "$BEZLINE" -gt "$BEZLINES" ] || [ "$BEZLINE" -lt "1" ]; do
  BEZLINE="`echo $RANDOM |tail -c $BEZTAIL`"
done
while [ "$MASOLINE" -gt "$MASOLINES" ] || [ "$MASOLINE" -lt "1" ]; do
  MASOLINE="`echo $RANDOM |tail -c $MASOTAIL`"
done
}

DNY=(UNUSED Pondeli: Utery: Streda: Ctvrtek: Patek: Sobota: Nedele:)

echo "*** Jidelnicek na tyden `date -d 'next week monday' +%d.%m.%Y` - `date -d '2 week sunday' +%d.%m.%Y` ***"
echo -e "---------------------------------------------------------------------------------------------------------\n"

for DAY in `seq 1 7`; do
  randomizuj
  echo -en "${DNY[$DAY]}  \t"
  if [ "$DAY" = "$ONEDAY" ]; then
    cat $JEDNOU |tr -d '\n'
    echo
  elif [ "$DAY" = "$BEZMASO" ]; then
    cat $BEZFILE |head -$BEZLINE |tail -1
  else
     cat $MASOFILE |head -$MASOLINE |tail -1
  fi
done

echo -e "\n---------------------------------------------------------------------------------------------------------\nVzkaz od nasich vesmirnych pratel:\n"
echo -e "`cat $FORTUNEFILE 2>/dev/null |head -$LASTFORTUNE |tail -1`"
echo $LASTFORTUNE >$FORTUNETMP