<?php

declare(strict_types=1);

namespace App\App;

use App\Application\Admin\MeController;
use App\Application\Auth\AuthController;
use App\Domain\Auth\Role;
use App\Domain\Auth\TokenHasher;
use App\Domain\Auth\TokenIssuer;
use App\Infrastructure\Auth\RoleMappingRepository;
use App\Infrastructure\Auth\ServiceTokenBootstrap;
use App\Infrastructure\Auth\TokenRepository;
use App\Infrastructure\Auth\UserRepository;
use App\Infrastructure\Db\ConnectionFactory;
use App\Infrastructure\Http\JsonErrorHandler;
use App\Infrastructure\Http\Middleware\ImpersonationMiddleware;
use App\Infrastructure\Http\Middleware\TokenAuthenticationMiddleware;

use function DI\autowire;

use DI\ContainerBuilder;

use function DI\factory;

use Doctrine\DBAL\Connection;
use Monolog\Formatter\JsonFormatter;
use Monolog\Handler\StreamHandler;
use Monolog\Logger;
use Psr\Container\ContainerInterface;
use Psr\Http\Message\ResponseFactoryInterface;
use Psr\Log\LoggerInterface;
use Slim\Psr7\Factory\ResponseFactory;

/**
 * Builds the api's DI container.
 *
 * Adds in M03: token domain helpers, repositories, middlewares, the JSON
 * error handler, and the controllers. Wiring is autowire-friendly except
 * where we need to inject a primitive (the OIDC default Role) or pull a
 * value out of `settings`.
 */
final class Container
{
    /**
     * @param array<string, mixed>|null $settings Optional override (tests pass in fixtures).
     */
    public static function build(?array $settings = null): ContainerInterface
    {
        $settings ??= require __DIR__ . '/../../config/settings.php';

        $builder = new ContainerBuilder();
        $builder->useAutowiring(true);
        $builder->addDefinitions([
            'settings' => $settings,
            'settings.db' => $settings['db'],
            'settings.ui_service_token' => $settings['ui_service_token'] ?? '',
            'settings.app_env' => $settings['app_env'] ?? 'production',
            'settings.log_level' => $settings['log_level'] ?? \Monolog\Level::Info,
            'settings.oidc_default_role' => $settings['oidc_default_role'] ?? Role::Viewer,
            ConnectionFactory::class => factory(static function (ContainerInterface $c): ConnectionFactory {
                /** @var array{driver: string, sqlite_path: string, mysql_host: string, mysql_port: int, mysql_database: string, mysql_username: string, mysql_password: string} $db */
                $db = $c->get('settings.db');

                return new ConnectionFactory($db);
            }),
            Connection::class => factory(static function (ContainerInterface $c): Connection {
                /** @var ConnectionFactory $factory */
                $factory = $c->get(ConnectionFactory::class);

                return $factory->create();
            }),
            LoggerInterface::class => factory(static function (ContainerInterface $c): LoggerInterface {
                $logger = new Logger('api');
                /** @var \Monolog\Level $level */
                $level = $c->get('settings.log_level');
                $handler = new StreamHandler('php://stdout', $level);
                $handler->setFormatter(new JsonFormatter());
                $logger->pushHandler($handler);

                return $logger;
            }),
            ResponseFactoryInterface::class => autowire(ResponseFactory::class),
            TokenHasher::class => autowire(),
            TokenIssuer::class => autowire(),
            TokenRepository::class => autowire(),
            RoleMappingRepository::class => autowire(),
            UserRepository::class => autowire(),
            ServiceTokenBootstrap::class => autowire(),
            TokenAuthenticationMiddleware::class => autowire(),
            ImpersonationMiddleware::class => autowire(),
            JsonErrorHandler::class => factory(static function (ContainerInterface $c): JsonErrorHandler {
                /** @var ResponseFactoryInterface $factory */
                $factory = $c->get(ResponseFactoryInterface::class);
                /** @var LoggerInterface $logger */
                $logger = $c->get(LoggerInterface::class);

                return new JsonErrorHandler(
                    $factory,
                    $logger,
                    $c->get('settings.app_env') === 'development',
                );
            }),
            AuthController::class => factory(static function (ContainerInterface $c): AuthController {
                /** @var Role|null $role */
                $role = $c->get('settings.oidc_default_role');
                /** @var UserRepository $users */
                $users = $c->get(UserRepository::class);

                return new AuthController($users, $role ?? Role::Viewer);
            }),
            MeController::class => autowire(),
        ]);

        return $builder->build();
    }
}