<?php

require_once 'Base.class.php';

class Type_GenericIO extends Type_Base {
	
	function rrd_gen_graph() {
		$rrdgraph = $this->rrd_options();

		$sources = $this->rrd_get_sources();

		$raw = null;
		if ($this->scale)
			$raw = '_raw';
		$i=0;
		foreach ($this->tinstances as $tinstance) {
			foreach ($this->data_sources as $ds) {
				$rrdgraph[] = sprintf('DEF:min_%s%s=%s:%s:MIN', crc32hex($sources[$i]), $raw, $this->parse_filename($this->files[$tinstance]), $ds);
				$rrdgraph[] = sprintf('DEF:avg_%s_raw=%s:%s:AVERAGE', crc32hex($sources[$i]), $this->parse_filename($this->files[$tinstance]), $ds);
				$rrdgraph[] = sprintf('DEF:max_%s%s=%s:%s:MAX', crc32hex($sources[$i]), $raw, $this->parse_filename($this->files[$tinstance]), $ds);
				if (!$this->scale)
					$rrdgraph[] = sprintf('VDEF:tot_%s=avg_%1$s,TOTAL', crc32hex($sources[$i]));
				$i++;
			}
		}
		if ($this->scale) {
			$i=0;
			foreach ($this->tinstances as $tinstance) {
				foreach ($this->data_sources as $ds) {
					$rrdgraph[] = sprintf('CDEF:min_%s=min_%1$s_raw,%s,*', crc32hex($sources[$i]), $this->scale);
					$rrdgraph[] = sprintf('CDEF:avg_%s=avg_%1$s_raw,%s,*', crc32hex($sources[$i]), $this->scale);
					$rrdgraph[] = sprintf('CDEF:max_%s=max_%1$s_raw,%s,*', crc32hex($sources[$i]), $this->scale);
					if ($i % 2 == 1)
						$rrdgraph[] = sprintf('CDEF:avg_%s_neg=avg_%1$s_raw,%s%s,*', crc32hex($sources[$i]), $this->negative_io ? '-' : '', $this->scale);
					$rrdgraph[] = sprintf('VDEF:tot_%1$s=avg_%1$s,TOTAL', crc32hex($sources[$i]));
					if ($this->percentile)
						$rrdgraph[] = sprintf('VDEF:pct_%1$s=avg_%1$s,%2$s,PERCENT', crc32hex($sources[$i]), $this->percentile);
					if ($this->percentile && $this->negative_io && $i % 2 == 1)
						$rrdgraph[] = sprintf('VDEF:pct_%1$s_neg=avg_%1$s_neg,%2$s,PERCENT', crc32hex($sources[$i]), 100 - $this->percentile);
					$i++;
				}
			}
		}

		$rrdgraph[] = sprintf('CDEF:overlap=avg_%s,avg_%s_neg,LT,avg_%1$s,avg_%2$s_neg,IF',
						crc32hex($sources[0]), crc32hex($sources[1]));

		$i = 0;
		foreach($sources as $source) {
			$rrdgraph[] = sprintf('AREA:avg_%s%s#%s', crc32hex($source), $i % 2 == 1 ? '_neg' : '', $this->get_faded_color($this->colors[$source]));
			$i++;
		}

		if (!$this->negative_io) {
			$rrdgraph[] = sprintf('AREA:overlap#%s',
				$this->get_faded_color(
					$this->get_faded_color($this->colors[$sources[0]]),
					$this->get_faded_color($this->colors[$sources[1]])
				)
			);
		}

		$i = 0;
		foreach($sources as $source) {
			$legend = empty($this->legend[$source]) ? $source : $this->legend[$source];
			$rrdgraph[] = sprintf('LINE1:avg_%s%s#%s:%s', crc32hex($source), $i % 2 == 1 ? '_neg' : '', $this->colors[$source], $this->rrd_escape($legend));
			$rrdgraph[] = sprintf('GPRINT:min_%s:MIN:%s Min,', crc32hex($source), $this->rrd_format);
			$rrdgraph[] = sprintf('GPRINT:avg_%s:AVERAGE:%s Avg,', crc32hex($source), $this->rrd_format);
			$rrdgraph[] = sprintf('GPRINT:max_%s:MAX:%s Max,', crc32hex($source), $this->rrd_format);
			$rrdgraph[] = sprintf('GPRINT:avg_%s:LAST:%s Last', crc32hex($source), $this->rrd_format);
			$rrdgraph[] = sprintf('GPRINT:tot_%s:%s Total\l',crc32hex($source), $this->rrd_format);
			$i++;
		}

		if ($this->percentile) {
			$rrdgraph[] = 'COMMENT: \l';
			$i=0;
			foreach($sources as $source) {
				$legend = empty($this->legend[$source]) ? $source : $this->legend[$source];
				$rrdgraph[] = sprintf('LINE:pct_%s%s#%s:%sth Percentile %s', crc32hex($source), ($i % 2 == 1 && $this->negative_io) ? '_neg' : '', $this->get_faded_color($this->colors[$source], '000000', 0.6), $this->percentile, $this->rrd_escape($legend));
				$rrdgraph[] = sprintf('GPRINT:pct_%s:%s\l', crc32hex($source), $this->rrd_format);
				$i++;
			}
		}

		return $rrdgraph;
	}
}