leftypol/inc/context.php

<?php
namespace Vichan;

use Vichan\Data\Driver\CacheDriver;
use Vichan\Data\{IpNoteQueries, ReportQueries, UserPostQueries};
use Vichan\Data\Driver\{LogDriver, LogDrivers};

defined('TINYBOARD') or exit;


class Context {
	private array $definitions;

	public function __construct(array $definitions) {
		$this->definitions = $definitions;
	}

	public function get(string $name): mixed {
		if (!isset($this->definitions[$name])) {
			throw new \RuntimeException("Could not find a dependency named $name");
		}

		$ret = $this->definitions[$name];
		if (is_callable($ret) && !is_string($ret) && !is_array($ret)) {
			$ret = $ret($this);
			$this->definitions[$name] = $ret;
		}
		return $ret;
	}
}

function build_context(array $config): Context {
	return new Context([
		'config' => $config,
		LogDriver::class => function($c) {
			$config = $c->get('config');

			$name = $config['log_system']['name'];
			$level = $config['debug'] ? LogDriver::DEBUG : LogDriver::NOTICE;
			$backend = $config['log_system']['type'];

			// Check 'syslog' for backwards compatibility.
			if ((isset($config['syslog']) && $config['syslog']) || $backend === 'syslog') {
				return LogDrivers::syslog($name, $level, $this->config['log_system']['syslog_stderr']);
			} elseif ($backend === 'file') {
				return LogDrivers::file($name, $level, $this->config['log_system']['file_path']);
			} elseif ($backend === 'stderr') {
				return LogDrivers::stderr($name, $level);
			} elseif ($backend === 'none') {
				return LogDrivers::none();
			} else {
				return LogDrivers::error_log($name, $level);
			}
		},
		CacheDriver::class => function($c) {
			// Use the global for backwards compatibility.
			return \cache::getCache();
		},
		\PDO::class => function($c) {
			global $pdo;
			// Ensure the PDO is initialized.
			sql_open();
			return $pdo;
		},
		ReportQueries::class => function($c) {
			$auto_maintenance = (bool)$c->get('config')['auto_maintenance'];
			$pdo = $c->get(\PDO::class);
			return new ReportQueries($pdo, $auto_maintenance);
		},
		UserPostQueries::class => function($c) {
			return new UserPostQueries($c->get(\PDO::class));
		},
		IpNoteQueries::class => fn($c) => new IpNoteQueries($c->get(\PDO::class), $c->get(CacheDriver::class)),
	]);
}