#!@@PERL@@
#
# Author: Christopher Browne
# Copyright 2004-2009 Afilias Canada

use Getopt::Long;

# Defaults
my $CONFIG_FILE = '@@SYSCONFDIR@@/slon_tools.conf';
my $SHOW_USAGE  = 0;

# Read command-line options
GetOptions(
    "config=s" => \$CONFIG_FILE,
    "help"     => \$SHOW_USAGE
);

my $USAGE = "Usage: init_cluster [--config file]

    Generates the slonik commands necessary to create a cluster and
    prepare the nodes for use.  Also displays a report showing the
    relationships between the various nodes.

";

if ($SHOW_USAGE) {
    print $USAGE;
    exit 0;
}

require '@@PERLSHAREDIR@@/slon-tools.pm';
require $CONFIG_FILE;

# INIT CLUSTER
$slonik .= "\n# INIT CLUSTER\n";
$slonik .= genheader();
my ( $dbname, $dbhost ) = ( $DBNAME[$MASTERNODE], $HOST[$MASTERNODE] );
$slonik .=
"  init cluster (id = $MASTERNODE, comment = 'Node $MASTERNODE - $dbname\@$dbhost');\n";

# STORE NODE
$slonik .= "\n# STORE NODE\n";
foreach my $node (@NODES) {
    if ( $node != $MASTERNODE )
    {    # skip the master node; it's already initialized!
        my ( $dbname, $dbhost ) = ( $DBNAME[$node], $HOST[$node] );
        $slonik .=
"  store node (id = $node, event node = $MASTERNODE, comment = 'Node $node - $dbname\@$dbhost');\n";
    }
}
$slonik .= "  echo 'Set up replication nodes';\n";

# STORE PATH
$slonik .= "\n# STORE PATH\n";

$slonik .= "  echo 'Next: configure paths for each node/origin';\n";
foreach my $nodea (@NODES) {
    my $dsna = $DSN[$nodea];
    foreach my $nodeb (@NODES) {
        if ( $nodea != $nodeb ) {
            my $dsnb = $DSN[$nodeb];
            if ( !$printed[$nodea][$nodeb] ) {
                $slonik .=
"  store path (server = $nodea, client = $nodeb, conninfo = '$dsna');\n";
                $printed[$nodea][$nodeb] = "done";
            }
            if ( !$printed[$nodeb][$nodea] and $providerba == $nodea ) {
                $slonik .=
"  store path (server = $nodeb, client = $nodea, conninfo = '$dsnb');\n";
                $printed[$nodeb][$nodea] = "done";
            }
        }
    }
}

$slonik .= "  echo 'Replication nodes prepared';\n";
$slonik .= "  echo 'Please start a slon replication daemon for each node';\n";
run_slonik_script( $slonik, 'INIT CLUSTER' );