#!/bin/bash
# info: list system rrd charts
# options: [FORMAT]
#
# List available rrd graphics, its titles and paths.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

format=${1-shell}

# Includes
source $HESTIA/func/main.sh
source $HESTIA/conf/hestia.conf

# JSON list function
json_list() {
    i=1
    echo "{"

    # Generating timestamp
    new_timestamp

    for type in $rrd_types; do
        for rrd in $(ls $RRD/$type |grep rrd$ |sed "s/\.rrd$//g"); do
            if [ "$i" -ne 1 ]; then
                echo -e "\t},"
            fi
            if [ "$type" = 'la' ]; then
                title="Load Average"
            fi
            if [ "$type" = 'mem' ]; then
                title="Memory Usage"
            fi
            if [ "$type" = 'net' ]; then
                title="Bandwidth Usage $rrd"
            fi
            if [ "$type" = 'web' ] || [ "$type" = 'ftp' ] ||\
               [ "$type" = 'ssh' ]; then
                title="$(echo $rrd| tr '[:lower:]' '[:upper:]') Usage"
            fi
            if [ "$type" = 'mail' ]; then
                title="Exim Usage"
            fi
            if [ "$type" = 'db' ]; then
                db_type=$(echo $rrd|cut -f 1 -d _ |sed -e 's/mysql/MySQL/g' \
                    -e 's/pgsql/PostgreSQL/g' )
                db_host=$(echo $rrd|cut -f 2 -d _ )
                title="$db_type Usage on $db_host"
            fi
            echo -e "\t\"$i\": {"
            echo -e "\t\t\"TYPE\": \"$type\"",
            echo -e "\t\t\"RRD\": \"$rrd\"",
            echo -e "\t\t\"TITLE\": \"$title\","
            echo -e "\t\t\"TIME\": \"$TIME\","
            echo -e "\t\t\"DATE\": \"$DATE\""
            (( ++i))
        done
    done
    if [ "$i" -gt 1 ]; then
        echo -e "\t}"
    fi
    echo "}"
}

# SHELL list function
shell_list() {
       echo "TYPE   VAL_1   VAL_2   VAL_3   TIME   DATE"
       echo "----   -----   -----   -----   ----   ----"
    for type in $rrd_types; do
        for rrd in $(ls $RRD/$type |grep rrd$ |sed "s/\.rrd$//g"); do
            rrd_type=$(echo  "$rrd" |tr '[:lower:]' '[:upper:]')
            rrd_data=$(rrdtool fetch "$RRD/$type/$rrd.rrd" AVERAGE -e 0 -s 0)
            rrd_data=$(echo "$rrd_data" |tail -n 1)
            rrd_timestamp=$(echo "$rrd_data" |cut -f 1 -d :)
            rrd_time=$(date -d "@$rrd_timestamp" +%F)
            rrd_date=$(date -d "@$rrd_timestamp" +%T)
            rrd_val1=$(echo "$rrd_data" |awk '{print $2}' |cut -d. -f1)
            rrd_val2=$(echo "$rrd_data" |awk '{print $3}' |cut -d. -f1)
            rrd_val3=$(echo "$rrd_data" |awk '{print $4}' |cut -d. -f1)
            if [ -z "$rrd_val1" ]; then
                rrd_val1="-nan"
            fi
            if [ -z "$rrd_val2" ]; then
                rrd_val2="-nan"
            fi
            if [ -z "$rrd_val3" ]; then
                rrd_val3="-nan"
            fi
            echo "$rrd_type $rrd_val1 $rrd_val2 $rrd_val3 $rrd_time $rrd_date"
        done
    done
}

# PLAIN list function
plain_list() {
    for type in $rrd_types; do
        for rrd in $(ls $RRD/$type |grep rrd$ |sed "s/\.rrd$//g"); do
            echo "$RRD/$type/$rrd.rrd"
        done
    done
}

# CSV list function
csv_list() {
    for type in $rrd_types; do
        echo "RRD"
        for rrd in $(ls $RRD/$type |grep rrd$ |sed "s/\.rrd$//g"); do
            echo "$RRD/$type/$rrd.rrd"
        done
    done
}


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Definng rrd charts
rrd_types="la mem net"

# Checking web system
if [ ! -z "$WEB_SYSTEM" ]; then
    rrd_types="$rrd_types web"
fi

# Checking mail system
if [ ! -z "$MAIL_SYSTEM" ]; then
    rrd_types="$rrd_types mail"
fi

# Checking db system
if [ ! -z "$DB_SYSTEM" ]; then
    rrd_types="$rrd_types db"
fi

# Checking ftp system
if [ ! -z "$FTP_SYSTEM" ]; then
    rrd_types="$rrd_types ftp"
fi

# Adding ssh
rrd_types="$rrd_types ssh"

# Listing data
case $format in
    json)   json_list ;;
    plain)  plain_list ;;
    csv)    csv_list ;;
    shell)  shell_list |column -t ;;
esac


#----------------------------------------------------------#
#                       Hestia                             #
#----------------------------------------------------------#

exit
