package NGCP::Panel::Controller::API::BalanceIntervals;
use NGCP::Panel::Utils::Generic qw(:all);
use Sipwise::Base;
use Moose;
#use namespace::sweep;
use boolean qw(true);
use Data::HAL qw();
use Data::HAL::Link qw();
use HTTP::Headers qw();
use HTTP::Status qw(:constants);
use MooseX::ClassAttribute qw(class_has);
use NGCP::Panel::Utils::ProfilePackages qw();
use NGCP::Panel::Utils::DateTime;
use Path::Tiny qw(path);
use Safe::Isa qw($_isa);
BEGIN { extends 'Catalyst::Controller::ActionRole'; }
require Catalyst::ActionRole::ACL;
require Catalyst::ActionRole::CheckTrailingSlash;
require Catalyst::ActionRole::HTTPMethods;
require Catalyst::ActionRole::RequireSSL;

class_has 'api_description' => (
    is => 'ro',
    isa => 'Str',
    default => 
        'Histories of contracts\' cash balance intervals.',
);

class_has 'query_params' => (
    is => 'ro',
    isa => 'ArrayRef',
    default => sub {[
        {
            param => 'reseller_id',
            description => 'Filter for actual balance intervals of customers belonging to a specific reseller',
            query => {
                first => sub {
                    my $q = shift;
                    { 'contact.reseller_id' => $q };
                },
                second => sub {
                    { join => 'contact' };
                },
            },
        },
        {
            param => 'contact_id',
            description => 'Filter for contracts with a specific contact id',
            query => {
                first => sub {
                    my $q = shift;
                    { contact_id => $q };
                },
                second => sub {},
            },
        },
        {
            param => 'status',
            description => 'Filter for contracts with a specific status (except "terminated")',
            query => {
                first => sub {
                    my $q = shift;
                    { status => $q };
                },
                second => sub {},
            },
        },
        {
            param => 'external_id',
            description => 'Filter for contracts with a specific external id',
            query => {
                first => sub {
                    my $q = shift;
                    { 'me.external_id' => { like => $q } };
                },
                second => sub {},
            },
        },        
    ]},
);

with 'NGCP::Panel::Role::API::BalanceIntervals';

class_has('resource_name', is => 'ro', default => 'balanceintervals');
class_has('dispatch_path', is => 'ro', default => '/api/balanceintervals/');
class_has('relation', is => 'ro', default => 'http://purl.org/sipwise/ngcp-api/#rel-balanceintervals');

__PACKAGE__->config(
    action => {
        map { $_ => {
            ACLDetachTo => '/api/root/invalid_user',
            AllowedRole => [qw/admin reseller/],
            Args => 0,
            Does => [qw(ACL CheckTrailingSlash RequireSSL)],
            Method => $_,
            Path => __PACKAGE__->dispatch_path,
        } } @{ __PACKAGE__->allowed_methods }
    },
    action_roles => [qw(HTTPMethods)],
);

sub auto :Private {
    my ($self, $c) = @_;

    $self->set_body($c);
    $self->log_request($c);
    #$self->apply_fake_time($c);    
}

sub GET :Allow {
    my ($self, $c) = @_;
    my $page = $c->request->params->{page} // 1;
    my $rows = $c->request->params->{rows} // 10;
    $c->model('DB')->set_transaction_isolation('READ COMMITTED');
    my $guard = $c->model('DB')->txn_scope_guard;
    {
        my $now = NGCP::Panel::Utils::DateTime::current_local;
        my $contracts_rs = $self->item_rs($c,0,$now);
        (my $total_count, $contracts_rs) = $self->paginate_order_collection($c, $contracts_rs);
        my $contracts = NGCP::Panel::Utils::ProfilePackages::lock_contracts(c => $c,
            rs => $contracts_rs,
            contract_id_field => 'id');
        my (@embedded, @links);
        my $form = $self->get_form($c);
        for my $contract (@$contracts) {
            my $balance = NGCP::Panel::Utils::ProfilePackages::get_contract_balance(c => $c,
                contract => $contract,
                now => $now);
            #sleep(5);
            my $hal = $self->hal_from_balance($c, $balance, $form, $now, 0); #we prefer item collection links pointing to the contract's collection instead of this root collection
            $hal->_forcearray(1);
            push @embedded, $hal;
            my $link = Data::HAL::Link->new(relation => 'ngcp:'.$self->resource_name, href     => sprintf('/%s%d/%d', $c->request->path, $contract->id, $balance->id));
            $link->_forcearray(1);
            push @links, $link;
            #push @links, Data::HAL::Link->new(relation => 'collection', href => sprintf("/api/%s/%d/", $self->resource_name, $contract->id));
        }
        $self->delay_commit($c,$guard);
        push @links,
            Data::HAL::Link->new(
                relation => 'curies',
                href => 'http://purl.org/sipwise/ngcp-api/#rel-{rel}',
                name => 'ngcp',
                templated => true,
            ),
            Data::HAL::Link->new(relation => 'profile', href => 'http://purl.org/sipwise/ngcp-api/');
        
        push @links, $self->collection_nav_links($page, $rows, $total_count, $c->request->path, $c->request->query_params);

        my $hal = Data::HAL->new(
            embedded => [@embedded],
            links => [@links],
        );
        $hal->resource({
            total_count => $total_count,
        });
        my $response = HTTP::Response->new(HTTP_OK, undef, 
            HTTP::Headers->new($hal->http_headers(skip_links => 1)), $hal->as_json);
        $c->response->headers($response->headers);
        $c->response->body($response->content);
        return;
    }
    return;
}

sub HEAD :Allow {
    my ($self, $c) = @_;
    $c->forward(qw(GET));
    $c->response->body(q());
    return;
}

sub OPTIONS :Allow {
    my ($self, $c) = @_;
    my $allowed_methods = $self->allowed_methods_filtered($c);
    $c->response->headers(HTTP::Headers->new(
        Allow => join(', ', @{ $allowed_methods }),
        Accept_Post => 'application/hal+json; profile=http://purl.org/sipwise/ngcp-api/#rel-'.$self->resource_name,
    ));
    $c->response->content_type('application/json');
    $c->response->body(JSON::to_json({ methods => $allowed_methods })."\n");
    return;
}

sub end : Private {
    my ($self, $c) = @_;

    #$self->reset_fake_time($c);
    $self->log_response($c);
}

no Moose;
1;

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