<?php

declare(strict_types=1);

require_once __DIR__ . '/../../vendor/autoload.php';

use App\Application\Components\CounterComponent;
use App\Framework\LiveComponents\ComponentEventDispatcher;
use App\Framework\LiveComponents\ValueObjects\ActionParameters;
use App\Framework\LiveComponents\ValueObjects\ComponentData;
use App\Framework\LiveComponents\ValueObjects\ComponentId;

echo "Testing CounterComponent with Strict Value Objects\n";
echo "==================================================\n\n";

$testsPassed = 0;
$testsFailed = 0;

function test(string $name, callable $fn): void
{
    global $testsPassed, $testsFailed;

    try {
        $fn();
        echo "✅ {$name}\n";
        $testsPassed++;
    } catch (Throwable $e) {
        echo "❌ {$name}\n";
        echo "   Error: {$e->getMessage()}\n";
        echo "   File: {$e->getFile()}:{$e->getLine()}\n";
        $testsFailed++;
    }
}

// Test 1: Constructor accepts only Value Objects
test('Constructor: Only accepts ComponentId and ComponentData', function () {
    $id = ComponentId::create('counter', 'test-1');
    $data = ComponentData::fromArray(['count' => 5]);

    $component = new CounterComponent($id, $data);

    assert($component->getId() instanceof ComponentId);
    assert($component->getData() instanceof ComponentData);
    assert($component->getId()->equals($id));
    assert($component->getData()->get('count') === 5);
});

// Test 2: Constructor with empty data
test('Constructor: Works with null initialData', function () {
    $id = ComponentId::create('counter', 'test-2');

    $component = new CounterComponent($id);

    assert($component->getData()->isEmpty());
});

// Test 3: Increment returns ComponentData
test('increment(): Returns ComponentData', function () {
    $id = ComponentId::create('counter', 'test-3');
    $data = ComponentData::fromArray(['count' => 0]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::empty();
    $dispatcher = new ComponentEventDispatcher();

    $result = $component->increment($params, $dispatcher);

    assert($result instanceof ComponentData);
    assert($result->get('count') === 1);
    assert($result->has('last_update'));

    // Verify event was dispatched
    assert($dispatcher->hasEvents());
    $events = $dispatcher->getEvents();
    assert(count($events) === 1);
    assert($events[0]->name === 'counter:changed');
});

// Test 4: Decrement returns ComponentData
test('decrement(): Returns ComponentData', function () {
    $id = ComponentId::create('counter', 'test-4');
    $data = ComponentData::fromArray(['count' => 5]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::empty();
    $dispatcher = new ComponentEventDispatcher();

    $result = $component->decrement($params, $dispatcher);

    assert($result instanceof ComponentData);
    assert($result->get('count') === 4);
});

// Test 5: Reset returns ComponentData
test('reset(): Returns ComponentData', function () {
    $id = ComponentId::create('counter', 'test-5');
    $data = ComponentData::fromArray(['count' => 42]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::empty();
    $dispatcher = new ComponentEventDispatcher();

    $result = $component->reset($params, $dispatcher);

    assert($result instanceof ComponentData);
    assert($result->get('count') === 0);

    // Verify reset event was dispatched
    $events = $dispatcher->getEvents();
    assert(count($events) === 1);
    assert($events[0]->name === 'counter:reset');
});

// Test 6: addAmount with ActionParameters
test('addAmount(): Uses ActionParameters correctly', function () {
    $id = ComponentId::create('counter', 'test-6');
    $data = ComponentData::fromArray(['count' => 10]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::fromArray(['amount' => 5]);
    $dispatcher = new ComponentEventDispatcher();

    $result = $component->addAmount($params, $dispatcher);

    assert($result instanceof ComponentData);
    assert($result->get('count') === 15);
});

// Test 7: Milestone event at count 10
test('Milestone: Dispatches event at multiples of 10', function () {
    $id = ComponentId::create('counter', 'test-7');
    $data = ComponentData::fromArray(['count' => 9]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::empty();
    $dispatcher = new ComponentEventDispatcher();

    $component->increment($params, $dispatcher);

    // Should have both counter:changed AND counter:milestone
    $events = $dispatcher->getEvents();
    assert(count($events) === 2);
    assert($events[0]->name === 'counter:changed');
    assert($events[1]->name === 'counter:milestone');
    assert($events[1]->payload->getInt('milestone') === 10);
});

// Test 8: Poll returns ComponentData
test('poll(): Returns ComponentData', function () {
    $id = ComponentId::create('counter', 'test-8');
    $data = ComponentData::fromArray(['count' => 5]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::empty();

    $result = $component->poll($params);

    assert($result instanceof ComponentData);
    assert($result->has('count'));
    assert($result->has('last_update'));
    assert($result->has('server_time'));
});

// Test 9: Immutability - original data unchanged
test('Immutability: Actions do not modify original data', function () {
    $id = ComponentId::create('counter', 'test-9');
    $originalData = ComponentData::fromArray(['count' => 5]);
    $component = new CounterComponent($id, $originalData);

    $params = ActionParameters::empty();
    $dispatcher = new ComponentEventDispatcher();

    $newData = $component->increment($params, $dispatcher);

    // Original data unchanged
    assert($originalData->get('count') === 5);

    // New data has updated count
    assert($newData->get('count') === 6);

    // Component's data is still original
    assert($component->getData()->get('count') === 5);
});

// Test 10: Event payloads are EventPayload objects
test('Events: Use EventPayload Value Objects', function () {
    $id = ComponentId::create('counter', 'test-10');
    $data = ComponentData::fromArray(['count' => 0]);
    $component = new CounterComponent($id, $data);

    $params = ActionParameters::empty();
    $dispatcher = new ComponentEventDispatcher();

    $component->increment($params, $dispatcher);

    $events = $dispatcher->getEvents();
    $event = $events[0];

    // Event payload should be EventPayload
    assert($event->payload instanceof \App\Framework\LiveComponents\ValueObjects\EventPayload);
    assert($event->payload->getString('component_id') === 'counter:test-10');
    assert($event->payload->getInt('old_value') === 0);
    assert($event->payload->getInt('new_value') === 1);
});

echo "\n";
echo "==================================================\n";
echo "Tests passed: {$testsPassed}\n";
echo "Tests failed: {$testsFailed}\n";
echo "==================================================\n";

if ($testsFailed > 0) {
    exit(1);
}

echo "\n✅ All CounterComponent strict typing tests passed!\n";
echo "✅ ComponentData return types work correctly!\n";