<?php

declare(strict_types=1);

namespace Tests\Unit\Framework\LiveComponents\Middleware;

use App\Framework\DI\Container;
use App\Framework\DI\DefaultContainer;
use App\Framework\LiveComponents\Contracts\LiveComponentContract;
use App\Framework\LiveComponents\Middleware\ComponentMiddlewarePipeline;
use App\Framework\LiveComponents\Middleware\MiddlewareRegistration;
use App\Framework\LiveComponents\ValueObjects\ActionParameters;
use App\Framework\LiveComponents\ValueObjects\ComponentId;
use App\Framework\LiveComponents\ValueObjects\ComponentState;
use App\Framework\LiveComponents\ValueObjects\ComponentUpdate;
use App\Framework\LiveComponents\ValueObjects\LiveComponentState;
use Tests\Unit\Framework\LiveComponents\Middleware\TestMiddleware1;
use Tests\Unit\Framework\LiveComponents\Middleware\TestMiddleware2;
use Tests\Unit\Framework\LiveComponents\Middleware\TestPassThroughMiddleware;
use Tests\Unit\Framework\LiveComponents\Middleware\TestCaptureMiddleware;

// Ensure test middleware classes are loaded
require_once __DIR__ . '/TestMiddleware.php';

describe('ComponentMiddlewarePipeline', function () {
    beforeEach(function () {
        $this->container = new DefaultContainer();
    });

    it('executes middleware in priority order', function () {
        $executionOrder = [];

        // Register middleware in container
        $this->container->instance(TestMiddleware1::class, new TestMiddleware1($executionOrder));
        $this->container->instance(TestMiddleware2::class, new TestMiddleware2($executionOrder));

        // Create pipeline with middleware (higher priority first)
        $middlewares = [
            new MiddlewareRegistration(TestMiddleware1::class, priority: 200),
            new MiddlewareRegistration(TestMiddleware2::class, priority: 100),
        ];

        $pipeline = new ComponentMiddlewarePipeline($middlewares, $this->container);

        // Create test component
        $component = new class(ComponentId::create('test', 'demo'), ComponentState::empty()) implements LiveComponentContract {
            public function __construct(public ComponentId $id, public ComponentState $state) {}
            public function getRenderData() {
                return new \App\Framework\LiveComponents\ValueObjects\ComponentRenderData('test', []);
            }
        };

        // Execute pipeline
        $result = $pipeline->process(
            $component,
            'testAction',
            ActionParameters::fromArray([]),
            fn($c, $a, $p) => new ComponentUpdate(
                component: $c,
                state: LiveComponentState::fromArray([]),
                events: []
            )
        );

        // Middleware should execute in priority order (higher first)
        expect($executionOrder)->toBe(['middleware1', 'middleware2']);
    });

    it('passes component, action, and params through middleware chain', function () {
        $receivedComponent = null;
        $receivedAction = null;
        $receivedParams = null;

        $middleware = new TestCaptureMiddleware($receivedComponent, $receivedAction, $receivedParams);
        $this->container->instance(TestCaptureMiddleware::class, $middleware);

        $middlewares = [
            new MiddlewareRegistration(TestCaptureMiddleware::class, priority: 100),
        ];

        $pipeline = new ComponentMiddlewarePipeline($middlewares, $this->container);

        $component = new class(ComponentId::create('test', 'demo'), ComponentState::empty()) implements LiveComponentContract {
            public function __construct(public ComponentId $id, public ComponentState $state) {}
            public function getRenderData() {
                return new \App\Framework\LiveComponents\ValueObjects\ComponentRenderData('test', []);
            }
        };

        $params = ActionParameters::fromArray(['test' => 'value']);

        $pipeline->process(
            $component,
            'testAction',
            $params,
            fn($c, $a, $p) => new ComponentUpdate(
                component: $c,
                state: LiveComponentState::fromArray([]),
                events: []
            )
        );

        expect($receivedComponent)->toBe($component);
        expect($receivedAction)->toBe('testAction');
        expect($receivedParams)->toBe($params);
    });

    it('returns action handler result', function () {
        $expectedResult = new ComponentUpdate(
            component: new class(ComponentId::create('test', 'demo'), ComponentState::empty()) implements LiveComponentContract {
                public function __construct(public ComponentId $id, public ComponentState $state) {}
                public function getRenderData() {
                    return new \App\Framework\LiveComponents\ValueObjects\ComponentRenderData('test', []);
                }
            },
            state: LiveComponentState::fromArray(['result' => 'success']),
            events: []
        );

        $middleware = new TestPassThroughMiddleware();
        $this->container->instance(TestPassThroughMiddleware::class, $middleware);

        $middlewares = [
            new MiddlewareRegistration(TestPassThroughMiddleware::class, priority: 100),
        ];

        $pipeline = new ComponentMiddlewarePipeline($middlewares, $this->container);

        $component = new class(ComponentId::create('test', 'demo'), ComponentState::empty()) implements LiveComponentContract {
            public function __construct(public ComponentId $id, public ComponentState $state) {}
            public function getRenderData() {
                return new \App\Framework\LiveComponents\ValueObjects\ComponentRenderData('test', []);
            }
        };

        $result = $pipeline->process(
            $component,
            'testAction',
            ActionParameters::fromArray([]),
            fn($c, $a, $p) => $expectedResult
        );

        expect($result)->toBe($expectedResult);
    });

    it('handles empty middleware array', function () {
        $pipeline = new ComponentMiddlewarePipeline([], $this->container);

        $component = new class(ComponentId::create('test', 'demo'), ComponentState::empty()) implements LiveComponentContract {
            public function __construct(public ComponentId $id, public ComponentState $state) {}
            public function getRenderData() {
                return new \App\Framework\LiveComponents\ValueObjects\ComponentRenderData('test', []);
            }
        };

        $expectedResult = new ComponentUpdate(
            component: $component,
            state: LiveComponentState::fromArray([]),
            events: []
        );

        $result = $pipeline->process(
            $component,
            'testAction',
            ActionParameters::fromArray([]),
            fn($c, $a, $p) => $expectedResult
        );

        expect($result)->toBe($expectedResult);
    });
});