#!/bin/sh
#------------------------------------------------------------------------------
# OPT_RRDTOOL   /etc/rc.d/rc900.rrdtool                            __FLI4LVER__
# Creation:     bastard
# Last Update:  $Id$
#------------------------------------------------------------------------------

case $OPT_RRDTOOL in
yes)
    begin_script RRDTOOL "starting rrdtool..."
        
    # apply default values if nessesary
    [ -z "$RRDTOOL_WWW_PATH" ] && local RRDTOOL_WWW_PATH='/srv/www/admin'
    [ -z "$RRDTOOL_LOG_PATH" ] && local RRDTOOL_LOG_PATH='/dev/null'
    [ -z "$RRDTOOL_DB_PATH" ] && local RRDTOOL_DB_PATH='/var/db/rrdtool'
    [ -z "$RRDTOOL_CACHE_PATH" ] && local RRDTOOL_CACHE_PATH='/var/cache/rrdtool'
    [ -z "$RRDTOOL_GRAPH_WIDTH" ] && local RRDTOOL_GRAPH_WIDTH=600
    [ -z "$RRDTOOL_DATE_FMT" ] && local RRDTOOL_DATE_FMT='+%Y-%m-%d %H\:%M\:%S'
    [ -z "$RRDTOOL_VALUE_INTERVAL" ] && local RRDTOOL_VALUE_INTERVAL=1
    [ -z "$RRDTOOL_GRAPH_INTERVAL" ] && local RRDTOOL_GRAPH_INTERVAL=15
    [ -z "$RRDTOOL_RENDERING_SPEED" ] && local RRDTOOL_RENDERING_SPEED=1
    [ -z "$RRDTOOL_TIME_RANGES" ] && local RRDTOOL_TIME_RANGES='e-3h e-24h e-1w e-1m e-1y'
    
    # check for trailing slashes and remove them if there
    for curPath in RRDTOOL_WWW_PATH RRDTOOL_LOG_PATH RRDTOOL_DB_PATH RRDTOOL_CACHE_PATH RRDTOOL_BACKUP_PATH; do
        eval $curPath'='`eval echo \\$$curPath | sed -r 's;^(/?([^/]+/)*[^/]+)/?$;\1;'`
    done
    
    # define config file
    local confFile=/var/run/rrdtool.conf
        
    # define error log file
    case "$RRDTOOL_LOG_PATH" in
	/dev/*) RRDTOOL_LOG_FILE="$RRDTOOL_LOG_PATH" ;;
	*)      RRDTOOL_LOG_FILE="$RRDTOOL_LOG_PATH/rrdtool.log" ;;
    esac
	
    if [ ! -e /var/run/webgui/language.conf ]; then
        mkdir -p /var/run/webgui
        echo "$HTTPD_GUI_LANG" > /var/run/webgui/language.conf
    fi
        
    # store variables needed later for graph rendering
    {
        echo "#!/bin/sh"
        echo "RRDTOOL_CONF_LOADED='yes'"
        echo "RRDTOOL_HTTPD_GUI_LANG=\"\`cat /var/run/webgui/language.conf\`\""
	set | grep '^RRDTOOL_[^0-9]'
	set | grep '^RRDTOOL_[0-9]'
    } > $confFile
        
    # create db folder
    mkdir -p "$RRDTOOL_DB_PATH"
    # create cache folder
    mkdir -p "$RRDTOOL_CACHE_PATH"
        
    rrdtool_services=""
    rm -r /etc/rrdtool/schedule_* > /dev/null 2>&1
        
    if [ -n "$RRDTOOL_BACKUP_PATH" ]; then
        if ! echo "$RRDTOOL_BACKUP_PATH"|grep -q "\(`echo \`sed -e '/ \(devpts\|bdev\|proc\|\(tmp\|sock\|pipe\|ram\|sys\|usb\(dev\|\)\|root\|capi\)fs\) /d' /proc/mounts|cut -d\  -f2\`|sed -e 's/ \//\\\|\//g'`\)"; then
            log_error "ERROR: RRDTOOL_BACKUP_PATH is in the RAM-disk, aborting backup"
            for i in `seq 1 10`; do
                do_beep
                sleep 1
            done
        else
            mkdir -p "$RRDTOOL_BACKUP_PATH"
            
            if [ -n "$RRDTOOL_BACKUP_INTERVAL" ]; then
                rrdtool_services="$rrdtool_services schedule_backup"
                ln -s /etc/rrdtool/rrdtool_backup /etc/rrdtool/schedule_backup
            fi
            echo ". /etc/rrdtool/rrdtool_backup" >/etc/rc0.d/rc495.rrdtool
        fi
    fi
    
    # for each defined source ...
    [ 0"$RRDTOOL_N" -eq 0 ] || for idx in `seq 1 "$RRDTOOL_N"`
    do
        eval source='$RRDTOOL_'$idx'_SOURCE'
        eval options='$RRDTOOL_'$idx'_OPTIONS_N'

        local source_options_str=
        [ "$options" -eq 0 ] || for idy in `seq 1 $options`
        do
            eval option='$RRDTOOL_'${idx}'_OPTIONS_'${idy}
            source_options_str="$source_options_str $option"
        done
        
	# remove spaces from $source_options_str
        source_options_str=`echo $source_options_str`
        {
            echo "RRDTOOL_${idx}_OPTIONS_STRING='$source_options_str'"
            # ERROR ERROR ERROR
            # -----------------
            # if use the same source more than once the next line is not a uniq
            # var in the $confFile
            #
            echo "RRDTOOL_${source}_ID='$idx'"
        } >> $confFile
        
        # create folders: image storage and linkage and db
        mkdir -p "$RRDTOOL_DB_PATH/$source"
        mkdir -p "$RRDTOOL_CACHE_PATH/$source"
        mkdir -p "$RRDTOOL_WWW_PATH/$source"
        
        # restore backups
        if [ -n "`ls "$RRDTOOL_BACKUP_PATH/$source"/*.rrd 2>/dev/null`" ]
        then
            cp -R "$RRDTOOL_BACKUP_PATH"/* "$RRDTOOL_DB_PATH"
        fi
        
        # create rrd if neccesary
        sh $shell_dbg_opt /etc/rrdtool/$source.rrd $source_options_str
        
        # appand task to value collection interval
        if [ "$RRDTOOL_VALUE_INTERVAL" -gt 0 ]
        then
            [ ! -f /etc/rrdtool/schedule_value.unsort ] && rrdtool_services="$rrdtool_services schedule_value"
            echo "/etc/rrdtool/$source.val" >> /etc/rrdtool/schedule_value.unsort
        fi
        
        # appand task to graph rendering interval
        if [ "$RRDTOOL_GRAPH_INTERVAL" -gt 0 ]
        then
            [ ! -f /etc/rrdtool/schedule_graph.unsort ] && rrdtool_services="$rrdtool_services schedule_graph"
            echo "/etc/rrdtool/$source.graph" >> /etc/rrdtool/schedule_graph.unsort
        else
            echo "/etc/rrdtool/$source.graph" >> /etc/rrdtool/schedule_graph_no
        fi
    done
    
    # sort /etc/rrdtool/schedule_* for uniq entries
    if [ -f /etc/rrdtool/schedule_value.unsort ]
    then
        sort -u /etc/rrdtool/schedule_value.unsort > /etc/rrdtool/schedule_value
    fi
    if [ -f /etc/rrdtool/schedule_graph.unsort ]
    then
        sort -u /etc/rrdtool/schedule_graph.unsort > /etc/rrdtool/schedule_graph
    fi

    # generate parameters for graph rendering
    echo "creating cached graph rendering data"
    sh $shell_dbg_opt /etc/rrdtool/rrdtool-generator
    echo "finished creating cached graph rendering data"
    
    # start schedules
    for i in $rrdtool_services; do
        log_info "starting rrdtool-scheduler for $i"
        /usr/bin/service-restart.sh 20 /etc/rrdtool/rrdtool_scheduler $i >> $RRDTOOL_LOG_FILE 2>&1 & 
    done
    
    # add menu item to webinterface
    [ "$OPT_HTTPD" == "yes" ] && httpd-menu.sh add -p 600 "rrdtool.cgi" "RRDtool" "" rrdtool
    
    end_script
    ;;
esac