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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray; |
| 6 | |
| 7 | use Celema\Container\Container; |
| 8 | use Celema\Core\Factory\Factory; |
| 9 | use Celema\Core\Request; |
| 10 | use Celema\Quma\Database; |
| 11 | use Celema\Verba\Translator; |
| 12 | use Celema\Verba\Verba; |
| 13 | use Celema\Wire\Creator; |
| 14 | use Closure; |
| 15 | use ReflectionClass; |
| 16 | |
| 17 | final class Context |
| 18 | { |
| 19 | private ?Assets\Repository $assets = null; |
| 20 | private ?Node\UrlPaths $paths = null; |
| 21 | private ?Title\Sort $titleSort = null; |
| 22 | private ?Locales $runtimeLocales = null; |
| 23 | private ?Locale $runtimeLocale = null; |
| 24 | |
| 25 | /** The request carrying the locale withLocale() switched to, while its callback runs. */ |
| 26 | private ?Request $localeRequest = null; |
| 27 | |
| 28 | /** @var array<string, Translator> */ |
| 29 | private array $translators = []; |
| 30 | |
| 31 | public function __construct( |
| 32 | public readonly Database $db, |
| 33 | public readonly ?Request $request, |
| 34 | public readonly Config $config, |
| 35 | public readonly Container $container, |
| 36 | public readonly Factory $factory, |
| 37 | ) {} |
| 38 | |
| 39 | public static function console( |
| 40 | Database $db, |
| 41 | Config $config, |
| 42 | Container $container, |
| 43 | Factory $factory, |
| 44 | Locales $locales, |
| 45 | ): self { |
| 46 | $context = new self($db, null, $config, $container, $factory); |
| 47 | $context->runtimeLocales = $locales; |
| 48 | $context->runtimeLocale = $locales->getDefault(); |
| 49 | |
| 50 | return $context; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Builds a new object for this request. Its constructor can ask for |
| 55 | * this Context, the Request, Config, Database, the core Factory and the |
| 56 | * request's container, plus the given types; other arguments are |
| 57 | * autowired through the request's container. Nodes, embedded objects, |
| 58 | * collections, block types and dashboard cards are built this way. |
| 59 | * Without a request, as in commands, jobs and the node writer, the |
| 60 | * Request is a stand-in that throws once it is used. |
| 61 | * |
| 62 | * @template T of object |
| 63 | * @param class-string<T> $class |
| 64 | * @param array<string, object> $types |
| 65 | * @return T |
| 66 | */ |
| 67 | public function create(string $class, array $types = []): object |
| 68 | { |
| 69 | $base = [ |
| 70 | self::class => $this, |
| 71 | Config::class => $this->config, |
| 72 | Database::class => $this->db, |
| 73 | Factory::class => $this->factory, |
| 74 | Container::class => $this->container, |
| 75 | ]; |
| 76 | |
| 77 | $base[Request::class] = $this->currentRequest() ?? self::absentRequest(); |
| 78 | $instance = new Creator($this->container)->create($class, predefinedTypes: $types + $base); |
| 79 | assert($instance instanceof $class, 'The creator returns the requested class'); |
| 80 | |
| 81 | return $instance; |
| 82 | } |
| 83 | |
| 84 | public function assets(): Assets\Repository |
| 85 | { |
| 86 | return $this->assets ??= new Assets\Repository($this->db, $this->config); |
| 87 | } |
| 88 | |
| 89 | public function paths(): Node\UrlPaths |
| 90 | { |
| 91 | return $this->paths ??= new Node\UrlPaths($this->db); |
| 92 | } |
| 93 | |
| 94 | public function titleSort(): Title\Sort |
| 95 | { |
| 96 | return $this->titleSort ??= new Title\Sort($this->db); |
| 97 | } |
| 98 | |
| 99 | public function locales(): Locales |
| 100 | { |
| 101 | if ($this->runtimeLocales !== null) { |
| 102 | return $this->runtimeLocales; |
| 103 | } |
| 104 | |
| 105 | $locales = $this->currentRequest()?->get('locales', null); |
| 106 | |
| 107 | if (!$locales instanceof Locales) { |
| 108 | throw new Exception\RuntimeException('Locales are not available in this CMS context'); |
| 109 | } |
| 110 | |
| 111 | return $locales; |
| 112 | } |
| 113 | |
| 114 | public function locale(): Locale |
| 115 | { |
| 116 | if ($this->runtimeLocale !== null) { |
| 117 | return $this->runtimeLocale; |
| 118 | } |
| 119 | |
| 120 | $locale = $this->currentRequest()?->get('locale', null); |
| 121 | |
| 122 | if (!$locale instanceof Locale) { |
| 123 | throw new Exception\RuntimeException('The current locale is not available in this CMS context'); |
| 124 | } |
| 125 | |
| 126 | return $locale; |
| 127 | } |
| 128 | |
| 129 | public function defaultLocale(): Locale |
| 130 | { |
| 131 | return $this->locales()->getDefault(); |
| 132 | } |
| 133 | |
| 134 | public function localeId(): string |
| 135 | { |
| 136 | return $this->locale()->id; |
| 137 | } |
| 138 | |
| 139 | public function translator(): Translator |
| 140 | { |
| 141 | $locale = $this->locale(); |
| 142 | |
| 143 | return $this->translators[$locale->id] ??= new Translator( |
| 144 | $locale->id, |
| 145 | $this->locales()->catalogs(), |
| 146 | $locale->fallbacks(), |
| 147 | ); |
| 148 | } |
| 149 | |
| 150 | public function httpRequest(): Request |
| 151 | { |
| 152 | return $this->currentRequest() ?? throw new Exception\RuntimeException( |
| 153 | 'An HTTP request is not available in this CMS context', |
| 154 | ); |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * The scheme and host absolute URLs start with: the request's, or else |
| 159 | * those of `app.url`. A locale with domains of its own gets its first |
| 160 | * one in place of a host that is not among them, as only they answer its |
| 161 | * paths, unless the request on that host was answered in the locale. |
| 162 | */ |
| 163 | public function origin(): string |
| 164 | { |
| 165 | $origin = $this->request?->origin() ?: self::originOf($this->config->app->url); |
| 166 | $requested = $this->request?->get('locale', null); |
| 167 | $locale = $this->runtimeLocale ?? $requested; |
| 168 | |
| 169 | if ($origin === '' || !$locale instanceof Locale || $locale->domains === []) { |
| 170 | return $origin; |
| 171 | } |
| 172 | |
| 173 | $host = strtolower((string) parse_url($origin, PHP_URL_HOST)); |
| 174 | $answered = $requested instanceof Locale && $requested->id === $locale->id; |
| 175 | |
| 176 | if ($answered || in_array($host, $locale->domains, true)) { |
| 177 | return $origin; |
| 178 | } |
| 179 | |
| 180 | return self::originOf($origin, $locale->domain()); |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * Runs the callback in another locale. Code that reads the locale off |
| 185 | * the request, such as templates, gets a request carrying it. |
| 186 | */ |
| 187 | public function withLocale(Locale $locale, Closure $callback): mixed |
| 188 | { |
| 189 | $runtimeLocale = $this->runtimeLocale; |
| 190 | $localeRequest = $this->localeRequest; |
| 191 | $translator = Verba::translator(); |
| 192 | $this->runtimeLocale = $locale; |
| 193 | $this->localeRequest = $this->request?->with('locale', $locale); |
| 194 | Verba::activate($this->translator()); |
| 195 | |
| 196 | try { |
| 197 | return $callback(); |
| 198 | } finally { |
| 199 | $this->runtimeLocale = $runtimeLocale; |
| 200 | $this->localeRequest = $localeRequest; |
| 201 | |
| 202 | if ($translator !== null) { |
| 203 | Verba::activate($translator); |
| 204 | } else { |
| 205 | Verba::deactivate(); |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | private function currentRequest(): ?Request |
| 211 | { |
| 212 | return $this->localeRequest ?? $this->request; |
| 213 | } |
| 214 | |
| 215 | /** Lets a node whose form handler reads the request still be written and indexed. */ |
| 216 | private static function absentRequest(): Request |
| 217 | { |
| 218 | return new ReflectionClass(Request::class)->newLazyProxy(static function (): never { |
| 219 | throw new Exception\RuntimeException( |
| 220 | 'There is no HTTP request here: commands, jobs and the node writer run without one.', |
| 221 | ); |
| 222 | }); |
| 223 | } |
| 224 | |
| 225 | /** The scheme, host and port of an absolute URL, with another host if one is given. */ |
| 226 | private static function originOf(?string $url, ?string $host = null): string |
| 227 | { |
| 228 | if ($url === null) { |
| 229 | return ''; |
| 230 | } |
| 231 | |
| 232 | $port = parse_url($url, PHP_URL_PORT); |
| 233 | |
| 234 | return ( |
| 235 | (string) parse_url($url, PHP_URL_SCHEME) |
| 236 | . '://' |
| 237 | . ($host ?? (string) parse_url($url, PHP_URL_HOST)) |
| 238 | . (is_int($port) ? ":{$port}" : '') |
| 239 | ); |
| 240 | } |
| 241 | } |