#!/usr/bin/ksh

# Gzip is located in /usr/contrib/bin
export PATH=$PATH:/usr/contrib/bin

# Last 2 digits of the current year
curr_year=`date +%o`

# Directorys
LOG_DIR=/app/logs
AUDIT_DIR=/app/logs/audit
ARCHIVE_DIR=/app/logs/archive
LOG_ARCHIVE_DIR=/log_archive/app_logs

# Number of days before things are gzip'd.
COMPRESS_DAYS=7
# Number of days till gzips are added to a tar file.
MV_AR_ARCHIVE_DAYS=7
# Number of days until the tar files are moved to log partition.
MV_MOAR_ARCHIVE_DAYS=60
# Number of days till tars are removed from log partition.
RM_MOAR_ARCHIVE_DAYS=180

#############

MOAR_HOST_NAME=$(hostname|tr [:lower:] [:upper:])

COMPAREYEAR="`date '+%y'`"
DATEYEAR="`date '+%Y'`"
DATEMONTH="`date '+%m'`"
DATEMONTH=$(( $DATEMONTH - 1 ))

if [ $DATEMONTH -eq 0 ]
then
        DATEMONTH=12
        DATEYEAR=$(( $DATEYEAR - 1 ))
fi
if [ $DATEMONTH -lt 10 ]
then
        DATEMONTH=0$DATEMONTH
fi

# DATESTAMP is the last month
DATESTAMP=$DATEYEAR.$DATEMONTH
# echo $DATESTAMP

#change to the log directory
cd ${LOG_DIR}
echo "Compressing Logs files"
find *fin*log* -prune -mtime +${COMPRESS_DAYS} -exec gzip {} \;
find this* -prune -mtime +${COMPRESS_DAYS} -exec gzip {} \;
find that* -prune -mtime +${COMPRESS_DAYS} -exec gzip {} \;
#move GZIP files to archive directory
find *.gz -mtime +${MV_AR_ARCHIVE_DAYS} -exec mv {} ${LOG_ARCHIVE_DIR}/ \;

#move GZIP files to archive directory
find *.gz -mtime +${MV_AR_ARCHIVE_DAYS} -exec mv {} ${ARCHIVE_DIR}/  \;

#change to the Archive Directory
cd ${ARCHIVE_DIR}
echo "Adding GZIP files to tar archive"
if [ ! -f "arlogs_${DATESTAMP}.tar" ]
then
        touch place.txt
        tar -cf arlogs_${DATESTAMP}.tar place.txt
fi

#loop for all the files in the directory.
ls -l *gz |\
while read file; do
    # Get month
    mo=`echo $file |awk '{print $6}'`
    case $mo in
        Jan) month=01;;
        Feb) month=02;;
        Mar) month=03;;
        Apr) month=04;;
        May) month=05;;
        Jun) month=06;;
        Jul) month=07;;
        Aug) month=08;;
        Sep) month=09;;
        Oct) month=10;;
        Nov) month=11;;
        Dec) month=12;;
          *) echo "Error:$prog:cannot determine month"; exit 1;;
    esac

    # Get day
    day=`echo $file |awk '{print $7}'`
    if [ -z "$day" ]; then
        echo "Error:$prog:cannot determine day"
        exit 1
    fi
    if [ $day -lt 10 ]; then
        day="0$day"
    fi

    # Get year
    file_year=`echo $file |awk '{print $8}'`
    if [ `echo $file_year |grep -c ":"` -gt 0 ]; then
        year=$curr_year
    else
        year=`echo $file_year |sed 's/^..//'`
    fi
    if [ -z "$year" ]; then
        echo "Error:$prog:cannot determine year"
        exit 1
    fi

    # File modification time (timestamp) in xx/xx/xx format
    timestamp="$month/$day/$year"

    # Get filename from long listing
    file=`echo $file |awk '{print $9}'`

    # Add to tar file and remove gzip file
    case $timestamp in
        *$DATESTAMP*)
            tar -uf arlogs_${DATESTAMP}.tar ${file}
            if [ $? -eq 0 ]; then
                rm ${file}
            fi ;;
        $DATEMONTH/*/$COMPAREYEAR)
            tar -uf arlogs_${DATESTAMP}.tar ${file}
            if [ $? -eq 0 ]; then
                rm ${file}
            fi ;;
    esac
done

#check to see if directory on archive partition is there
if [ ! -d "${LOG_ARCHIVE_DIR}/${MOAR_HOST_NAME}_logs_${DATEYEAR}" ]
then
  mkdir ${LOG_ARCHIVE_DIR}/${MOAR_HOST_NAME}_logs_${DATEYEAR}
fi

# Move from the archive directory to the archive partition
find *.tar -mtime +${MV_MOAR_ARCHIVE_DAYS} -exec mv {} ${ARCHIVE_DIR}/${MOAR_HOST_NAME}_logs_${DATEYEAR} \;

#change to the archive partition directory
cd ${LOG_ARCHIVE_DIR}/${MOAR_HOST_NAME}_logs_${DATEYEAR}

# remove any old tars
find *.tar -mtime +${RM_MOAR_ARCHIVE_DAYS} -exec rm {} \;