package Amazon::SQS::Simple;

use strict;
use warnings;

use Carp qw( croak );
use Amazon::SQS::Simple::Base; # for constants
use Amazon::SQS::Simple::Queue;
use base qw(Exporter Amazon::SQS::Simple::Base);

our $VERSION   = '2.04';
our @EXPORT_OK = qw( timestamp );

sub GetQueue {
    my ($self, $queue_endpoint) = @_;

	if ($queue_endpoint =~ /^arn:aws:sqs/) {
		my ($host, $user, $queue);
		(undef, undef, undef, $host, $user, $queue) = split(/:/, $queue_endpoint);
		$queue_endpoint = "https://sqs.$host.amazonaws.com/$user/$queue";
	}

    return Amazon::SQS::Simple::Queue->new(
        $self->{AWSAccessKeyId},	#AWSAccessKeyId and SecretKey are the first two arguments to Amazon::SQS::Simple::Base->new
        $self->{SecretKey},
        %$self,
        Endpoint => $queue_endpoint,
    );
}

sub CreateQueue {
    my ($self, $queue_name, %params) = @_;
    
    $params{Action}    = 'CreateQueue';
    $params{QueueName} = $queue_name;
        
    my $href = $self->_dispatch(\%params);
    
    if ($href->{CreateQueueResult}{QueueUrl}) {
        return Amazon::SQS::Simple::Queue->new(
            $self->{AWSAccessKeyId},	#AWSAccessKeyId and SecretKey are the first two arguments to Amazon::SQS::Simple::Base->new
            $self->{SecretKey},
            %$self,
            Endpoint => $href->{CreateQueueResult}{QueueUrl},
        );
    }
}

sub ListQueues {
    my ($self, %params) = @_;
    
    $params{Action} = 'ListQueues';
        
    my $href = $self->_dispatch(\%params, ['QueueUrl']);
    
    # default to the current version
    if ($href->{ListQueuesResult}{QueueUrl}) {
        my @result = map {
            Amazon::SQS::Simple::Queue->new(
                $self->{AWSAccessKeyId},	#AWSAccessKeyId and SecretKey are the first two arguments to Amazon::SQS::Simple::Base->new
                $self->{SecretKey},
                %$self,
                Endpoint => $_,
            )        
        } @{$href->{ListQueuesResult}{QueueUrl}};

        return \@result;
    }
    else {
        return undef;
    }
}

sub timestamp {
    return Amazon::SQS::Simple::Base::_timestamp(@_);
}

1;

__END__

=head1 NAME

Amazon::SQS::Simple - OO API for accessing the Amazon Simple Queue 
Service

=head1 SYNOPSIS

    use Amazon::SQS::Simple;

    my $access_key = 'foo'; # Your AWS Access Key ID
    my $secret_key = 'bar'; # Your AWS Secret Key
    
    # Create an SQS object
    my $sqs = new Amazon::SQS::Simple($access_key, $secret_key);

    # Create a new queue
    my $q = $sqs->CreateQueue('queue_name');

    # Send a message
    my $response = $q->SendMessage('Hello world!');
	
	# Send multiple messages 
	my @responses = $q->SendMessageBatch(['Hello world', 'Farewell cruel world']);
	
    # Retrieve a message
    my $msg = $q->ReceiveMessage();
    print $msg->MessageBody() # Hello world!

    # Delete the message
    $q->DeleteMessage($msg->ReceiptHandle());
	# or
	$q->DeleteMessage($msg);
	
    # Delete the queue
    $q->Delete();

=head1 INTRODUCTION

Amazon::SQS::Simple is an OO API for the Amazon Simple Queue Service.

=head1 IMPORTANT

This version of Amazon::SQS::Simple defaults to work against version
2009-02-01 of the SQS API.

Earlier API versions may or may not work.  

=head1 CONSTRUCTOR

=over 2

=item new($access_key, $secret_key, [%opts])

Constructs a new Amazon::SQS::Simple object

C<$access_key> is your Amazon Web Services access key. C<$secret_key> is your Amazon Web
Services secret key. If you don't have either of these credentials, visit
L<http://aws.amazon.com/>.

Options for new:

=over 4

=item Timeout => SECONDS

Set the HTTP user agent's timeout (default is 180 seconds)

=item Version => VERSION_STRING

Specifies the SQS API version you wish to use. E.g.:

 my $sqs = new Amazon::SQS::Simple($access_key, $secret_key, Version => '2008-01-01');

=back

=back

=head1 METHODS

=over 2

=item GetQueue($queue_endpoint)

Gets the queue with the given endpoint. Returns a 
C<Amazon::SQS::Simple::Queue> object. (See L<Amazon::SQS::Simple::Queue> for details.)

=item CreateQueue($queue_name, [%opts])

Creates a new queue with the given name. Returns a 
C<Amazon::SQS::Simple::Queue> object. (See L<Amazon::SQS::Simple::Queue> for details.)

Options for CreateQueue:

=over 4

=item DefaultVisibilityTimeout => SECONDS

Set the default visibility timeout for this queue

=back

=item ListQueues([%opts])

Gets a list of all your current queues. Returns an array of 
C<Amazon::SQS::Simple::Queue> objects. (See L<Amazon::SQS::Simple::Queue> for details.)

Options for ListQueues:

=over 4

=item QueueNamePrefix => STRING

Only those queues whose name begins with the specified string are returned.

=back

=back

=head1 FUNCTIONS

No functions are exported by default; if you want to use them, export them in your use 
line:

    use Amazon::SQS::Simple qw( timestamp );

=over 2

=item timestamp($seconds)

Takes a time in seconds since the epoch and returns a formatted timestamp suitable for
using in a Timestamp or Expires optional method parameter.

=back

=head1 STANDARD OPTIONS

The following options can be supplied with any of the listed methods.

=over 2

=item AWSAccessKeyId => STRING

The AWS Access Key Id to use with the method call. If not provided, Amazon::SQS::Simple uses
the value passed to the constructor.

=item SecretKey => STRING

The Secret Key to use with the method call. If not provided, Amazon::SQS::Simple uses
the value passed to the constructor.

=item Timestamp => TIMESTAMP

All methods are automatically given a timestamp of the time at which they are called,
but you can override this value if you need to. The value for this key should be a
timestamp as returned by the Amazon::SQS::Simple::timestamp() function.

You generally do not need to supply this option.

=item Expires => TIMESTAMP

All methods are automatically given a timestamp of the time at which they are called.
You can alternatively set an expiry time by providing an Expires option. The value
for this key should be a timestamp as returned by the C<Amazon::SQS::Simple::timestamp()>
function.

You generally do not need to supply this option.

=back

=head1 ACKNOWLEDGEMENTS

Bill Alford wrote the code to support basic functionality of older API versions
in release 0.9.
James Neal provided the proxy support code in release 2.0
Roland Walker provided support for the newer signature version in release 2.0
Chris Jones provied the batch message code in release 2.0
Glenn Fowler (among others) provided a patch for the subtle access bug surfaved by hash key randomisation, as well as some test cleanup code in 2.04
=head1 AUTHOR

Copyright 2007-2008 Simon Whitaker E<lt>swhitaker@cpan.orgE<gt>
Copyright 2013 Mike (no relation) Whitaker E<lt>penfold@cpan.orgE<gt>

This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.

=cut