package OAR::Sub;

use strict;
use warnings;

use OAR::Version;
use OAR::Tools;
use OAR::IO;
use IO::Socket::INET;


my $base;

sub open_db_connection(){
	$base  = OAR::IO::connect();
}
sub open_ro_db_connection(){
	$base  = OAR::IO::connect_ro();
}
sub close_db_connection(){
	OAR::IO::disconnect($base) if (defined($base));
	$base = undef;
}

sub lock_tables($){
	my $tables_to_lock = shift;
	OAR::IO::lock_table($base,$tables_to_lock);
}
sub unlock_tables(){
	OAR::IO::unlock_table($base);
}

sub encode_result($$){
    my $result = shift or die("[OAR::Nodes] encode_result: no result to encode");
    my $encoding = shift or die("[OAR::Nodes] encode_result: no format to encode to");
    if($encoding eq "XML"){
        eval "use XML::Dumper qw(pl2xml);1" or die ("XML module not available");
        my $dump = new XML::Dumper;
        $dump->dtd;
        my $return = $dump->pl2xml($result) or die("XML conversion failed");
        return $return;
    }elsif($encoding eq "YAML"){
        eval "use YAML::Syck;1" or eval "use YAML;1" or die ("No Perl YAML module is available");
        my $return = Dump($result) or die("YAML conversion failed");
        return $return;
    }elsif($encoding eq "JSON"){
        eval "use JSON;1"  or die ("No Perl JSON module is available");
        my $return = JSON->new->pretty(1)->encode($result) or die("JSON conversion failed");
        return $return;
    }
}

sub get_oar_version(){
    return OAR::Version::get_version();
}

sub signal_almighty($$$){
	my $almighty_hostname = shift;
	my $almighty_port = shift;
	my $message = shift;
	OAR::Tools::notify_tcp_socket($almighty_hostname,$almighty_port,$message);
}

sub get_job($){
	my $job_id = shift;
	return OAR::IO::get_job($base, $job_id);
}

sub frag_job($){
	my $job = shift;
	return OAR::IO::frag_job($base,$job);
}

#Used when we must have a response from the server
sub init_tcp_server(){
    my $server = IO::Socket::INET->new( Proto    => 'tcp',
                                        Reuse => 1,
                                        Listen => 1
                                      ) or die("/!\\ Cannot initialize a TCP socket server.\n");
    my $server_port = $server->sockport();
    return($server,$server_port);
}

#Read user script and extract OAR submition options
sub scan_script($$){
    my $file = shift;
    my $Initial_request_string = shift;
    my %result;
    my $error = 0;
    ($file) = split(" ",$file);
    my $lusr= $ENV{OARDO_USER};
    $ENV{OARDO_BECOME_USER} = $lusr;
    if (open(FILE, "oardodo cat $file |")){
        if (<FILE> =~ /^#/){
            while (<FILE>) {
                if ( /^#OAR\s+/ ){
                    my $line = $_;
                    $line =~ s/\s+$//;
                    if ($line =~ m/^#OAR\s+(-l|--resource)\s*(.+)\s*$/m){
                        push(@{$result{resources}}, $2);
                    }elsif ($line =~ m/^#OAR\s+(-q|--queue)\s*(.+)\s*$/m) {
                        $result{queue} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-p|--property)\s*(.+)\s*$/m) {
                        $result{property} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--checkpoint)\s*(\d+)\s*$/m) {
                        $result{checkpoint} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--notify)\s*(.+)\s*$/m) {
                        $result{notify} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-t|--type)\s*(.+)\s*$/m) {
                        push(@{$result{types}}, $2);
                    }elsif ($line =~ m/^#OAR\s+(-d|--directory)\s*(.+)\s*$/m) {
                        $result{directory} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-n|--name)\s*(.+)\s*$/m) {
                        $result{name} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--project)\s*(.+)\s*$/m) {
                        $result{project} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--hold)\s*$/m) {
                        $result{hold} = 1;
                    }elsif ($line =~ m/^#OAR\s+(-a|--anterior)\s*(\d+)\s*$/m) {
                        push(@{$result{anterior}}, $2);
                    }elsif ($line =~ m/^#OAR\s+(--signal)\s*(\d+)\s*$/m) {
                        $result{signal} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-O|--stdout)\s*(.+)\s*$/m) {
                        $result{stdout} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-E|--stderr)\s*(.+)\s*$/m) {
                        $result{stderr} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-k|--use-job-key)\s*$/m) {
                        $result{usejobkey} = 1;
                    }elsif ($line =~ m/^#OAR\s+(--import-job-key-inline-priv)\s*(.+)\s*$/m) {
                        $result{importjobkeyinlinepriv} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-i|--import-job-key-from-file)\s*(.+)\s*$/m) {
                        $result{importjobkeyfromfile} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-e|--export-job-key-to-file)\s*(.+)\s*$/m) {
                        $result{exportjobkeytofile} = $2;
                    }elsif ($line =~ m/^#OAR\s+(-s|--stagein)\s*(.+)\s*$/m) {
                        $result{stagein} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--stagein-md5sum)\s*(.+)\s*$/m) {
                        $result{stageinmd5sum} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--array)\s*(\d+)\s*$/m) {
                        $result{array} = $2;
                    }elsif ($line =~ m/^#OAR\s+(--array-param-file)\s*(.+)\s*$/m) {
                        $result{arrayparamfile} = $2;
                    }else{
                        warn("/!\\ Not able to scan file line: $line");
                        $error++;
                    }
                    chop($line);
                    $Initial_request_string .= "; $line";
                }
            }
        }
        if (!close(FILE)){
            warn("[ERROR] Cannot open the file $file.\n");
            close_db_connection(); exit(12);
        }
    }else{
        warn("[ERROR] Cannot execute: oardodo cat $file\n");
        close_db_connection(); exit(12);
    }
    if ($error > 0){
        warn("[ERROR] $error error(s) encountered while parsing the file $file.\n");
        close_db_connection(); exit(12);
    }
    $result{initial_request} = $Initial_request_string;
    return(\%result);
}

sub read_array_param_file($){
    my $array_param_file = shift;
    my @array_params;
    if (open(PARAMETER_FILE, "oardodo cat $array_param_file |")){
        while(<PARAMETER_FILE>) {
            s/#.*//; # ignore comments by erasing them
            next if /^\s*$/;  # skip blank lines
            chomp;  # remove trailing newline characters
            push (@array_params, $_);
        }
        if (!close(PARAMETER_FILE)){
            warn("[ERROR] Cannot open the parameter file $array_param_file.\n");
            close_db_connection(); exit(12);
        }
    }else{
        warn("[ERROR] Cannot execute: oardodo cat $array_param_file\n");
        close_db_connection(); exit(12);
    }
    return \@array_params;
}

sub get_job_current_hostnames($){
	my $job_id = shift;
	my @return = OAR::IO::get_job_current_hostnames($base,$job_id);
	return \@return;
}

sub get_current_job_types($){
	my $job_id = shift;
	return OAR::IO::get_job_types_hash($base,$job_id);
}

sub get_job_cpuset_name($){
	my $job_id = shift;
	return OAR::IO::get_job_cpuset_name($base,$job_id);
}

sub get_current_moldable_job($){
	my $moldable_job_id = shift;
	return OAR::IO::get_current_moldable_job($base,$moldable_job_id);
}

sub get_default_oarexec_directory(){
	return OAR::Tools::get_default_oarexec_directory();
}

sub set_default_oarexec_directory($){
	my $dir = shift;
	OAR::Tools::set_default_oarexec_directory($dir);
}

sub get_oarsub_connections_file_name($){
	my $job_id = shift;
	return OAR::Tools::get_oarsub_connections_file_name($job_id);
}

sub get_default_openssh_cmd(){
	return OAR::Tools::get_default_openssh_cmd();
}

sub set_ssh_timeout($){
	my $timeout = shift;
	OAR::Tools::set_ssh_timeout($timeout);
}

sub get_oarexecuser_script_for_oarsub($){
	my $params = shift;
	my $node_file = $params->{node_file};
    my $job_id = $params->{job_id};
    my $array_id = $params->{array_id};
    my $array_index = $params->{array_index};
    my $user = $params->{user};
    my $shell = $params->{shell};
    my $launching_directory = $params->{launching_directory};
    my $resource_file = $params->{resource_file};
    my $job_name = $params->{job_name};
    my $job_project = $params->{job_project};
    my $job_walltime = $params->{job_walltime};
    my $job_walltime_sec = $params->{job_walltime_sec};
    my $job_env = $params->{job_env};
	return OAR::Tools::get_oarexecuser_script_for_oarsub($node_file, $job_id, $array_id, $array_index, $user, $shell, $launching_directory, $resource_file, $job_name, $job_project, $job_walltime, $job_walltime_sec, $job_env);
}

sub signal_oarexec($){
	my $params = shift;
    my $host = $params->{host};
    my $job_id = $params->{job_id};
    my $signal = $params->{signal};
    my $wait = $params->{time_to_wait};
    my $base = undef;
    my $ssh_cmd = $params->{ssh_cmd};
	return OAR::Tools::signal_oarexec($host, $job_id, $signal, $wait, $base, $ssh_cmd, '');
}

sub duration_to_sql($){
	my $duration = shift;
	return OAR::IO::duration_to_sql($duration);
}

sub sql_to_duration($){
	my $date = shift;
	return OAR::IO::sql_to_duration($date);
}

sub sql_to_local($){
	my $date = shift;
	return OAR::IO::sql_to_local($date);
}

sub resubmit_job($){
	my $job_id = shift;
	return OAR::IO::resubmit_job($base, $job_id);
}

sub get_lock($$){
	my $mutex = shift;
	my $timeout = shift;
	return OAR::IO::get_lock($base,$mutex,$timeout);
}

sub release_lock($){
	my $mutex = shift;
	return OAR::IO::release_lock($base,$mutex);
}

sub get_stagein_id($){
	my $md5sum = shift;
	return OAR::IO::get_stagein_id($base, $md5sum);
}

sub set_stagein($) {
	my $params = shift;
    my $md5sum = $params->{md5sum};
    my $location = $params->{location};
    my $method = $params->{method};
    my $compression = $params->{compression};
    my $size = $params->{size};
	return OAR::IO::set_stagein($base, $md5sum, $location, $method, $compression, $size);
}

sub get_job_array_id($){
    my $job_id = shift;
	return OAR::IO::get_job_array_id($base, $job_id);
}

sub add_micheline_job{
	my ($jobType, $ref_resource_list, $command, $infoType, $queue_name, $jobproperties, $startTimeReservation, $idFile, $checkpoint, $checkpoint_signal, $notify, $job_name,$job_env,$type_list,$launching_directory,$anterior_ref,$stdout,$stderr,$job_hold,$project,$use_job_key,$import_job_key_inline,$import_job_key_file,$export_job_key_file,$initial_request_string, $array_job_nb,$array_params_ref) = @_;
	my $base_ro = OAR::IO::connect_ro();
    my $r = OAR::IO::add_micheline_job($base, $base_ro, $jobType, $ref_resource_list, $command, $infoType, $queue_name, $jobproperties, $startTimeReservation, $idFile, $checkpoint, $checkpoint_signal, $notify, $job_name,$job_env,$type_list,$launching_directory,$anterior_ref,$stdout,$stderr,$job_hold,$project,$use_job_key,$import_job_key_inline,$import_job_key_file,$export_job_key_file,$initial_request_string, $array_job_nb,$array_params_ref);
    OAR::IO::disconnect($base_ro);
    return($r);
}

sub delete_jobs($$$){
	my $job_ids = shift;
	my $remote_host = shift;
	my $remote_port = shift;
	open_db_connection();
	lock_tables(["frag_jobs","event_logs","jobs"]);
	foreach my $Job_id (@{$job_ids}) {
		warn("Deleting the job $Job_id ...\n");
		my $err = frag_job($Job_id);
	}
	unlock_tables();
	close_db_connection();
	warn("Job(s) deleted\n");
	#Signal Almigthy
	signal_almighty($remote_host,$remote_port,"Qdel");
}


1;

