#!/usr/bin/perl -w
#
# Debian-specific script to register a new plugin into the SF database

use DBI ;
use strict ;
use diagnostics ;

use vars qw/$dbh @reqlist $plugin_name $plugin_desc $plugin_id/ ;

sub debug ( $ ) ;

require ("/usr/share/gforge/lib/include.pl") ; # Include all the predefined functions

&db_connect ;

if ($#ARGV < 1) {
    debug "Usage: register-plugin <plugin name> <plugin description>" ;
    exit 1 ;
}

$plugin_name = $ARGV [0] ;
$plugin_desc = $ARGV [1] ;

if ($plugin_name =~ /[^a-z]/) {
    debug "Error: the plugin name must contain only [a-z] characters" ;
    exit 1 ;
}

$dbh->{AutoCommit} = 0;
$dbh->{RaiseError} = 1;
eval {
    my ($query, $sth, @array, $version, $action) ;

    $plugin_desc = $dbh->quote ($plugin_desc) ;

    $query = "SELECT count(*) FROM plugins WHERE plugin_name = '$plugin_name'" ;
    $sth = $dbh->prepare ($query) ;
    $sth->execute () ;
    @array = $sth->fetchrow_array () ;
    $sth->finish () ;

    if ($array[0] == 1) {
	$query = "SELECT plugin_id FROM plugins WHERE plugin_name = '$plugin_name'" ;
	$sth = $dbh->prepare ($query) ;
	$sth->execute () ;
	@array = $sth->fetchrow_array () ;
	$sth->finish () ;

	$plugin_id = $array[0] ;
	debug "Plugin '$plugin_name' already registered, skipping." ;
	print "$plugin_id\n" ;
    } else {
	$query = "INSERT INTO plugins (plugin_name, plugin_desc) VALUES ('$plugin_name', $plugin_desc)" ;

	debug $query ;

	$sth = $dbh->prepare ($query) ;
	$sth->execute () ;
	$sth->finish () ;

	$query = "SELECT plugin_id FROM plugins WHERE plugin_name = '$plugin_name'" ;
	$sth = $dbh->prepare ($query) ;
	$sth->execute () ;
	@array = $sth->fetchrow_array () ;
	$sth->finish () ;

	$plugin_id = $array[0] ;
	debug "Plugin '$plugin_name' registered with id $plugin_id." ;
	print "$plugin_id\n" ;

	# debug "Committing." ;
	$dbh->commit () ;
    }

    # There should be a commit at the end of every block above.
    # If there is not, then it might be symptomatic of a problem.
    # For safety, we roll back.
    $dbh->rollback ();
};

if ($@) {
    warn "Transaction aborted because $@" ;
    debug "Transaction aborted because $@" ;
    $dbh->rollback ;
    debug "Please report this bug on the Debian bug-tracking system." ;
    debug "Please include the previous messages as well to help debugging." ;
    debug "You should not worry too much about this," ;
    debug "your DB is still in a consistent state and should be usable." ;
    exit 1 ;
}

$dbh->rollback ;
$dbh->disconnect ;

sub debug ( $ ) {
    my $v = shift ;
    chomp $v ;
    print STDERR "$v\n" ;
}