leftypol/inc/context.php

<?php
namespace Vichan;

use Vichan\Data\Driver\CacheDriver;
use Vichan\Data\ReportQueries;

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' => $config,
		CacheDriver::class => function($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);
			$cache = $c->get(CacheDriver::class);
			return new ReportQueries($pdo, $cache, $auto_maintenance);
		}
	]);
}