Commit | Line | Data |
71217e42 |
1 | package DX::Op::ProposeAction; |
2 | |
3 | use DX::ObservationRequired; |
4 | use Moo; |
5 | |
6 | with 'DX::Role::Op'; |
7 | |
8 | has vars => (is => 'ro', required => 1); |
9 | has builder => (is => 'ro', required => 1); |
10 | |
11 | has _arg_map => (is => 'lazy', builder => sub { |
12 | my ($self) = @_; |
13 | my $name = 'arg0'; |
14 | +{ map +($name++, $_), @{$self->vars} }; |
15 | }); |
16 | |
17 | sub run { |
18 | my ($self, $state) = @_; |
19 | ($state, my %args) = $self->_expand_args($state, %{$self->_arg_map}); |
20 | my @vars = @args{sort keys %args}; |
21 | my $action = $self->builder->(@vars); |
22 | my ($id, $value) = $action->expected_effect; |
23 | my $var = $state->by_id->{$id}->with_value($value)->with_action($action); |
24 | $state->but(by_id => { %{$state->by_id}, $id => $var }) |
25 | ->then($self->next); |
26 | } |
27 | |
28 | 1; |