package WWW::Webrobot::Print::Text;
use strict;
use warnings;

# Author: Stefan Trcek
# Copyright(c) 2004 ABAS Software AG


use Data::Dumper;
use WWW::Webrobot::Util qw/ascii/;


sub new {
    my $proto = shift;
    my $class = ref($proto) || $proto;
    my $self = bless({}, ref($class) || $class);
    my %parm = (@_);

    $self->{summary} = defined $parm{summary} ? $parm{summary} : 0;
    $self->{format} = defined $parm{format} ? $parm{format} : 1;
    $self->{failed} = [];
    bless ($self, $class);
    return $self;
}

sub global_start {
    my $self = shift;
}

sub item_pre {
    my $self = shift;
    my ($arg) = @_;
    my $url = $arg->{url};
    my $url_out = ref($url) ? Dumper($url) : ($url || "");
    my $points = $arg->{is_recursive} ? "... " : "";
    print ascii("$points$arg->{method} $url_out"), "\n" if $self->{format} > 0;
}


sub failstr {
    my ($array, $default) = @_;
    $default ||= "";
    return sub {
        my ($err_code) = @_;
        return (defined $err_code) ? $array->[$err_code] || $default : $default;
    };
}

my $short = failstr(["ok     ", "fail   ", "invalid"], "[no assertion]");
my $long = failstr(["Ok", "FAILED", "INVALID"], "[no assertion]");

sub item_post {
    my ($self, $r, $arg) = @_;
    my $last_errcode = "  -";
    foreach ($self -> _stack_responses($r)) {
        print $self->_response2string($_), "\n" if $self->{format} > 0;
        $last_errcode = $_->{_rc};
    }
    if ($self -> {format} > 0) {
        print " "x8, $long->($arg->{fail}), ": ",
            ascii($arg->{description}) || "No description", "\n";
    }
    else {
        print $short->($arg->{fail}), " $last_errcode ",
            $arg->{method}, " ", $arg->{url}, "\n";
    }
    if ($arg->{new_properties}) {
        foreach (@{$arg->{new_properties}}) {
            print " "x8 . ascii("Property '$_->[0]' => '$_->[1]'") . "\n"
        }
    }
    push @{$self->{failed}}, $arg if $arg->{fail};
}


sub global_end {
    my $self = shift;
    if ($self -> {summary}) {
        if (scalar @{$self->{failed}} == 0) {
            print "No errors.\n";
        }
        else {
            print "\n", "ERRORS:\n", "------------\n";
            foreach my $arg (@{$self -> {failed}}) {
                print $short->($arg->{fail}), ": ", $arg->{method}, " ", $arg->{url}, "\n";
            }
        }
    }
}


# private
sub _stack_responses {
    my ($self, $r) = @_;
    my @seq = ();
    while (defined($r)) {
        unshift(@seq, $r);
        $r = $r -> {'_previous'};
    }
    return @seq;
}

# private
sub _response2string {
    my ($self, $r) = @_;
    return "" if !defined($r);
    return " " x 8,
        $r -> {_rc}, " ",
        ($r -> {_request} -> {_method} || "(no_method)"), " ",
        $r -> {_request} -> {_uri}, " (",
        ($r -> {_msg} || "(no_message)"), ")";
}


1;

=head1 NAME

WWW::Webrobot::Print::Text - write response content to STDOUT

=head1 DESCRIPTION

This module writes requests and part of the response to STDOUT.

You may consider to use L<WWW::Webrobot::Print::Test> instead.

=head1 METHODS

See L<WWW::Webrobot::pod::OutputListeners>.

=over

=item WWW::Webrobot::Print::Text -> new(%parameters)

 Parameters     Description
 ================================================================
 summary (0|1)  add a summary of failed request at the end
 format (0|1)   select output details
                0: only final response for any request
                1: all requests and responses for any request
                   This affects redirections and authentification

=back