#!/usr/bin/perl

use strict;
use warnings;

use Test::More;
use Test::Exception;
use Test::Moose 'does_ok';

{
    package Stuff;
    use Moose;

    has 'options' => (
        traits  => ['Hash'],
        is      => 'ro',
        isa     => 'HashRef[Str]',
        default => sub { {} },
        handles => {
            'set_option'       => 'set',
            'get_option'       => 'get',
            'has_no_options'   => 'is_empty',
            'num_options'      => 'count',
            'clear_options'    => 'clear',
            'delete_option'    => 'delete',
            'has_option'       => 'exists',
            'is_defined'       => 'defined',
            'option_accessor'  => 'accessor',
            'key_value'        => 'kv',
            'options_elements' => 'elements',
            'quantity'         => [ accessor => 'quantity' ],
        },
    );
}

my $stuff = Stuff->new();
isa_ok( $stuff, 'Stuff' );

can_ok( $stuff, $_ ) for qw[
    set_option
    get_option
    has_no_options
    num_options
    delete_option
    clear_options
    is_defined
    has_option
    quantity
    option_accessor
];

ok( $stuff->has_no_options, '... we have no options' );
is( $stuff->num_options, 0, '... we have no options' );

is_deeply( $stuff->options, {}, '... no options yet' );
ok( !$stuff->has_option('foo'), '... we have no foo option' );

lives_ok {
    $stuff->set_option( foo => 'bar' );
}
'... set the option okay';

ok( $stuff->is_defined('foo'), '... foo is defined' );

ok( !$stuff->has_no_options, '... we have options' );
is( $stuff->num_options, 1, '... we have 1 option(s)' );
ok( $stuff->has_option('foo'), '... we have a foo option' );
is_deeply( $stuff->options, { foo => 'bar' }, '... got options now' );

lives_ok {
    $stuff->set_option( bar => 'baz' );
}
'... set the option okay';

is( $stuff->num_options, 2, '... we have 2 option(s)' );
is_deeply( $stuff->options, { foo => 'bar', bar => 'baz' },
    '... got more options now' );

is( $stuff->get_option('foo'), 'bar', '... got the right option' );

is_deeply( [ $stuff->get_option(qw(foo bar)) ], [qw(bar baz)],
    "get multiple options at once" );

is( scalar($stuff->get_option(qw( foo bar) )), "baz",
       '... got last option in scalar context');

lives_ok {
    $stuff->set_option( oink => "blah", xxy => "flop" );
}
'... set the option okay';

is( $stuff->num_options, 4, "4 options" );
is_deeply( [ $stuff->get_option(qw(foo bar oink xxy)) ],
    [qw(bar baz blah flop)], "get multiple options at once" );

lives_ok {
    $stuff->delete_option('bar');
}
'... deleted the option okay';

lives_ok {
    $stuff->delete_option('oink','xxy');
}
'... deleted multiple option okay';

is( $stuff->num_options, 1, '... we have 1 option(s)' );
is_deeply( $stuff->options, { foo => 'bar' }, '... got more options now' );

$stuff->clear_options;

is_deeply( $stuff->options, {}, "... cleared options" );

lives_ok {
    $stuff->quantity(4);
}
'... options added okay with defaults';

is( $stuff->quantity, 4, 'reader part of curried accessor works' );

is_deeply( $stuff->options, { quantity => 4 }, '... returns what we expect' );

lives_ok {
    Stuff->new( options => { foo => 'BAR' } );
}
'... good constructor params';

## check some errors

dies_ok {
    $stuff->set_option( bar => {} );
}
'... could not add a hash ref where an string is expected';

dies_ok {
    Stuff->new( options => { foo => [] } );
}
'... bad constructor params';

## test the meta

my $options = $stuff->meta->get_attribute('options');
does_ok( $options, 'Moose::Meta::Attribute::Native::Trait::Hash' );

is_deeply(
    $options->handles,
    {
        'set_option'       => 'set',
        'get_option'       => 'get',
        'has_no_options'   => 'is_empty',
        'num_options'      => 'count',
        'clear_options'    => 'clear',
        'delete_option'    => 'delete',
        'has_option'       => 'exists',
        'is_defined'       => 'defined',
        'option_accessor'  => 'accessor',
        'key_value'        => 'kv',
        'options_elements' => 'elements',
        'quantity'         => [ accessor => 'quantity' ],
    },
    '... got the right handles mapping'
);

is( $options->type_constraint->type_parameter, 'Str',
    '... got the right container type' );

$stuff->set_option( oink => "blah", xxy => "flop" );
my @key_value = sort{ $a->[0] cmp $b->[0] } $stuff->key_value;
is_deeply(
    \@key_value,
    [ sort{ $a->[0] cmp $b->[0] } [ 'xxy', 'flop' ], [ 'quantity', 4 ], [ 'oink', 'blah' ] ],
    '... got the right key value pairs'
) or do{ require Data::Dumper; diag(Data::Dumper::Dumper(\@key_value)) };

my %options_elements = $stuff->options_elements;
is_deeply(
    \%options_elements,
    {
        'oink'     => 'blah',
        'quantity' => 4,
        'xxy'      => 'flop'
    },
    '... got the right hash elements'
);

done_testing;