declare(strict_types=1);

use PhpTui\Term\Event\CharKeyEvent;

use PhpTui\Term\Event\CodedKeyEvent;

use PhpTui\Term\Event\FunctionKeyEvent;

use PhpTui\Term\Event\MouseEvent;

use PhpTui\Term\KeyCode;

use PhpTui\Term\KeyModifiers;

use PhpTui\Term\MouseButton;

use PhpTui\Term\MouseEventKind;

use Tapper\Console\EventBus;

describe('string/int events', function () {

it('dispatches a registered string event to its listener', function () {

$bus = new EventBus;

$received = null;

$bus->listen('custom', function ($data) use (&$received) {

$received = $data;

});

$bus->emit('custom', ['foo' => 'bar']);

expect($received)->toBe(['foo' => 'bar']);

});

it('does nothing when emitting an event with no listeners', function () {

$bus = new EventBus;

$bus->emit('nobody-listens');

expect(true)->toBeTrue();

});

it('calls every listener registered for the same event, in order', function () {

$bus = new EventBus;

$calls = [];

$bus->listen('tick', function () use (&$calls) {

$calls[] = 'first';

});

$bus->listen('tick', function () use (&$calls) {

$calls[] = 'second';

});

$bus->emit('tick');

expect($calls)->toBe(['first', 'second']);

});

});

describe('KeyCode/MouseEventKind registration', function () {

it('registers a KeyCode listener under its enum name', function () {

$bus = new EventBus;

$fired = false;

$bus->listen(KeyCode::Enter, function () use (&$fired) {

$fired = true;

});

$bus->emit('Enter');

expect($fired)->toBeTrue();

});

it('registers a MouseEventKind listener under a "Mouse"-prefixed name', function () {

$bus = new EventBus;

$fired = false;

$bus->listen(MouseEventKind::Down, function () use (&$fired) {

$fired = true;

});

$bus->emit('MouseDown');

expect($fired)->toBeTrue();

});

});

describe('CharKeyEvent dispatch', function () {

it('dispatches keyed by the typed character and merges modifiers into the data', function () {

$bus = new EventBus;

$received = null;

$bus->listen('a', function ($data) use (&$received) {

$received = $data;

});

$bus->emit(CharKeyEvent::new('a', KeyModifiers::SHIFT));

expect($received)->toBe(['modifiers' => KeyModifiers::SHIFT]);

});

it('lets extra data passed to emit override the default modifiers key', function () {

$bus = new EventBus;

$received = null;

$bus->listen('b', function ($data) use (&$received) {

$received = $data;

});

$bus->emit(CharKeyEvent::new('b'), ['modifiers' => 'overridden']);

expect($received)->toBe(['modifiers' => 'overridden']);

});

});

describe('CodedKeyEvent dispatch', function () {

it('dispatches keyed by the KeyCode enum name', function () {

$bus = new EventBus;

$fired = false;

$bus->listen(KeyCode::Esc->name, function () use (&$fired) {

$fired = true;

});

$bus->emit(CodedKeyEvent::new(KeyCode::Esc));

expect($fired)->toBeTrue();

});

});

describe('FunctionKeyEvent dispatch', function () {

it('dispatches keyed by "F{number}"', function () {

$bus = new EventBus;

$fired = false;

$bus->listen('F5', function () use (&$fired) {

$fired = true;

});

$bus->emit(FunctionKeyEvent::new(5));

expect($fired)->toBeTrue();

});

});

describe('MouseEvent dispatch', function () {

it('dispatches keyed by "Mouse{kind}" and passes the event back in the data', function () {

$bus = new EventBus;

$received = null;

$bus->listen('MouseScrollUp', function ($data) use (&$received) {

$received = $data;

});

$event = MouseEvent::new(MouseEventKind::ScrollUp, MouseButton::None, column: 3, row: 4, modifiers: 0);

$bus->emit($event);

expect($received)->toBe(['event' => $event]);

});

});