#!/usr/bin/php
<?php

// Note: The GW generators have newer code

error_reporting(E_ALL | E_NOTICE | E_STRICT | E_DEPRECATED);

define('USE_CACHE', true);

// ---

require_once __DIR__ . '/ipv6_functions.inc.phps';
require_once __DIR__ . '/grep_funcs.inc.phps';
require_once __DIR__ . '/rirs.inc.phps';

// This is like __DIR__, but does not resolve symlinks
// (useful for sharing the source codes locally by symlinking)
define('DIR', dirname($_SERVER['SCRIPT_FILENAME']));

foreach ($rirs as &$rir) {
	if (USE_CACHE) {
		$rirstat_filename = DIR . "/cache/rirstats/$rir";
	} else {
		$rirstat_filename = $rirstat_urls[$rir];
	}

	if (!file_exists($rirstat_filename)) {
		fwrite(STDERR, "Error: cannot find statistics file for RIR $rir. Skipping.\n");
		continue;
	}

	$rirstat_lines = file($rirstat_filename);
	$rirstat_lines = antigrep($rirstat_lines, '#');
	$rirstat_lines = grep($rirstat_lines, 'ipv6');
	$rirstat_lines = antigrep($rirstat_lines, 'summary');

	# ---

	$xxx = array();

	echo "$rir: Step 1 - Prepare\n";

	foreach ($rirstat_lines as $x) {
		$x = trim($x);
		if ($x == '') continue;

		$ary = explode('|', $x);

		# Example:
		# afrinic|KE|ipv6|2c0f:fe88::|32|20100728|allocated
		# ^0      ^1 ^2   ^3          ^4 ^5       ^6

		$baseip = $ary[3];
		$cidr = $ary[4];
		# $state = $ary[6];

		$range = ipv6_cidr2range($baseip, $cidr);
		$topip = $range[1];

		$xxx[$baseip] = $topip;
	}

	$xxx = ipv6_merge_address_blocks($xxx, "$rir: Step 2 - ");

	// --- CIDR finden ---

	echo "$rir: Step 3 - Analyze address ranges and write CIDR blocks\n";

	$hf = fopen(DIR . "/out/ipv6_cidr_$rir.new", 'w');
	$hb = fopen(DIR . "/out/ipv6_blocks_$rir.new", 'w');

	foreach ($xxx as $baseip => &$topip) {
		fwrite($hb, "$baseip - $topip\n");

		$rirstat_lines = ipv6_range2cidr($baseip, $topip);
		foreach ($rirstat_lines as $x) {
			fwrite($hf, "$x\n");
		}
	}

	fclose($hb);
	fclose($hf);

	rename(DIR . "/out/ipv6_cidr_$rir.new", DIR . "/out/ipv6_cidr_$rir");
	rename(DIR . "/out/ipv6_blocks_$rir.new", DIR . "/out/ipv6_blocks_$rir");
}

echo "Finished!\n";

?>