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| 1 | <?php |
| 2 | /** |
| 3 | * Class WPCom_Themes_Store. |
| 4 | * How a theme is sold, and whether it is already paid for. |
| 5 | * |
| 6 | * @package automattic/jetpack-mu-wpcom |
| 7 | */ |
| 8 | |
| 9 | use Automattic\Jetpack\Connection\Client; |
| 10 | |
| 11 | /** |
| 12 | * Reads the WordPress.com store for the themes a plan does not grant. |
| 13 | * |
| 14 | * Only the partner tier is sold this way: every other tier comes with a plan, which |
| 15 | * WPCom_Themes_Tiers answers for. Prices are left out: the store quotes a request in the |
| 16 | * currency of wherever it came from, so only the browser can ask for the reader's own. |
| 17 | */ |
| 18 | class WPCom_Themes_Store { |
| 19 | |
| 20 | /** |
| 21 | * The billing term a theme is offered by here. |
| 22 | * |
| 23 | * Yearly, as the plugins Marketplace tab offers plugins: the cheaper of the two terms, |
| 24 | * and one price rather than a choice to make on a card. |
| 25 | */ |
| 26 | const TERM = 'year'; |
| 27 | |
| 28 | /** |
| 29 | * The store's name for a theme sold on its own. |
| 30 | */ |
| 31 | const PRODUCT_TYPE = 'marketplace_theme'; |
| 32 | |
| 33 | /** |
| 34 | * The store's catalog, which the browser reads again to price a theme for its reader. |
| 35 | */ |
| 36 | const PRODUCTS_URL = 'https://public-api.wordpress.com/rest/v1.1/products'; |
| 37 | |
| 38 | /** |
| 39 | * Cache handler. |
| 40 | * |
| 41 | * @var WPCom_Themes_Cache $cache |
| 42 | */ |
| 43 | private WPCom_Themes_Cache $cache; |
| 44 | |
| 45 | /** |
| 46 | * Class constructor. |
| 47 | * |
| 48 | * @param WPCom_Themes_Cache $cache Cache handler. |
| 49 | */ |
| 50 | public function __construct( WPCom_Themes_Cache $cache ) { |
| 51 | $this->cache = $cache; |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Every theme the store sells, by product slug. |
| 56 | * |
| 57 | * @return array<string, array{term: string, billing_slug: string}> |
| 58 | */ |
| 59 | public function products(): array { |
| 60 | return $this->cache->run_cached( |
| 61 | 'wpcom-themes-store-products', |
| 62 | fn() => $this->fetch_products() |
| 63 | ) ?? array(); |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * The billing products this site already subscribes to. |
| 68 | * |
| 69 | * Billing slugs rather than product slugs, so a theme bought by the month is still |
| 70 | * recognised as bought. Calypso's isMarketplaceThemeSubscribed matches the same way. |
| 71 | * |
| 72 | * @return array<string> Billing product slugs. |
| 73 | */ |
| 74 | public function subscriptions(): array { |
| 75 | $slugs = array(); |
| 76 | |
| 77 | foreach ( (array) wpcom_themes_get_purchases() as $purchase ) { |
| 78 | $slug = is_object( $purchase ) ? ( $purchase->billing_product_slug ?? '' ) : ''; |
| 79 | |
| 80 | if ( is_string( $slug ) && '' !== $slug ) { |
| 81 | $slugs[] = $slug; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | return $slugs; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Reads the store catalog, keeping the themes in it. |
| 90 | * |
| 91 | * @return array<string, array>|null Null when the store could not be read, which is not cached. |
| 92 | */ |
| 93 | private function fetch_products(): ?array { |
| 94 | $response = $this->request( '/products' ); |
| 95 | |
| 96 | if ( null === $response ) { |
| 97 | return null; |
| 98 | } |
| 99 | |
| 100 | $products = array(); |
| 101 | foreach ( $response as $slug => $product ) { |
| 102 | if ( ! is_array( $product ) || self::PRODUCT_TYPE !== ( $product['product_type'] ?? '' ) ) { |
| 103 | continue; |
| 104 | } |
| 105 | |
| 106 | // A product the store has withdrawn cannot be bought, so it is not offered. |
| 107 | if ( false === ( $product['available'] ?? true ) ) { |
| 108 | continue; |
| 109 | } |
| 110 | |
| 111 | $products[ (string) $slug ] = array( |
| 112 | 'term' => (string) ( $product['product_term'] ?? '' ), |
| 113 | 'billing_slug' => (string) ( $product['billing_product_slug'] ?? '' ), |
| 114 | ); |
| 115 | } |
| 116 | |
| 117 | return $products; |
| 118 | } |
| 119 | |
| 120 | /** |
| 121 | * Asks WordPress.com as whoever is reading, which is who checkout would charge. |
| 122 | * |
| 123 | * @param string $path Store API path. |
| 124 | * @return array|null Decoded body, or null when the request failed. |
| 125 | */ |
| 126 | private function request( string $path ): ?array { |
| 127 | // wpcom_json_api_request_as_user does not support internal requests. |
| 128 | $as = defined( 'IS_WPCOM' ) && IS_WPCOM |
| 129 | ? 'wpcom_json_api_request_as_blog' |
| 130 | : 'wpcom_json_api_request_as_user'; |
| 131 | |
| 132 | if ( ! method_exists( Client::class, $as ) ) { |
| 133 | return null; |
| 134 | } |
| 135 | |
| 136 | $response = Client::$as( $path, '1.1', array(), null, 'rest' ); |
| 137 | |
| 138 | if ( is_wp_error( $response ) || 200 !== wp_remote_retrieve_response_code( $response ) ) { |
| 139 | return null; |
| 140 | } |
| 141 | |
| 142 | $body = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 143 | |
| 144 | return is_array( $body ) ? $body : null; |
| 145 | } |
| 146 | } |