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| 1 | <?php |
| 2 | /** |
| 3 | * AI Launchpad: the free DIFM offer banner's eligibility and experiment assignment. |
| 4 | * |
| 5 | * @package automattic/jetpack-mu-wpcom |
| 6 | */ |
| 7 | |
| 8 | use Automattic\Jetpack\Jetpack_Mu_Wpcom\Expiry_Notices\Expiry_Data; |
| 9 | use Automattic\Jetpack\Status\Host; |
| 10 | |
| 11 | /** |
| 12 | * Decides whether the Site Setup page shows the free DIFM offer banner. |
| 13 | * |
| 14 | * The rules are the same as the Calypso banners on /themes/<site> and /sites/<site> |
| 15 | * (client/dashboard/utils/difm-offer.ts), so one user sees the same offer on every surface. |
| 16 | */ |
| 17 | class AI_Launchpad_Difm_Offer { |
| 18 | |
| 19 | /** |
| 20 | * The ExPlat experiment. A placeholder until the experiment is registered, the same name Calypso uses. |
| 21 | */ |
| 22 | const EXPERIMENT = 'wpcom_difm_post_signup_offer_placeholder'; |
| 23 | |
| 24 | /** |
| 25 | * The only variation that shows the banner. |
| 26 | */ |
| 27 | const TREATMENT = 'treatment'; |
| 28 | |
| 29 | /** |
| 30 | * The Calypso preference the Calypso banners also write, so one dismissal hides the offer everywhere. |
| 31 | */ |
| 32 | const DISMISSED_PREFERENCE = 'hosting-dashboard-difm-offer-dismissed'; |
| 33 | |
| 34 | /** |
| 35 | * The oldest site, in days, that still gets the offer. |
| 36 | */ |
| 37 | const MAX_SITE_AGE_DAYS = 7; |
| 38 | |
| 39 | /** |
| 40 | * Free, Personal and Premium, every term, and the Personal trial. Same list as Calypso's ELIGIBLE_PLAN_SLUGS. |
| 41 | */ |
| 42 | const ELIGIBLE_PLAN_SLUGS = array( |
| 43 | 'free_plan', |
| 44 | 'personal-bundle-monthly', |
| 45 | 'wp-personal-bundle-free-trial-monthly', |
| 46 | 'personal-bundle', |
| 47 | 'personal-bundle-2y', |
| 48 | 'personal-bundle-3y', |
| 49 | 'value_bundle_monthly', |
| 50 | 'value_bundle', |
| 51 | 'value_bundle-2y', |
| 52 | 'value_bundle-3y', |
| 53 | ); |
| 54 | |
| 55 | /** |
| 56 | * Calypso's englishLocales, in its slug format. |
| 57 | */ |
| 58 | const ENGLISH_LOCALES = array( 'en', 'en-gb' ); |
| 59 | |
| 60 | /** |
| 61 | * The offer for the current user and site, or null when the banner must not show. |
| 62 | * |
| 63 | * The user is assigned to the experiment only after every other check passes, so an |
| 64 | * ineligible user never enters it. |
| 65 | * |
| 66 | * @param int|null $now Unix time to judge the site age against. Defaults to time(). |
| 67 | * @return array{variation:string,image_url:string,cta_url:string}|null |
| 68 | */ |
| 69 | public static function get_offer( $now = null ) { |
| 70 | if ( ! self::is_eligible( null === $now ? time() : $now ) ) { |
| 71 | return null; |
| 72 | } |
| 73 | |
| 74 | if ( self::TREATMENT !== self::get_variation() ) { |
| 75 | return null; |
| 76 | } |
| 77 | |
| 78 | return array( |
| 79 | 'variation' => self::TREATMENT, |
| 80 | 'image_url' => plugins_url( 'images/difm-offer-illustration.svg', __FILE__ ), |
| 81 | 'cta_url' => self::get_cta_url(), |
| 82 | ); |
| 83 | } |
| 84 | |
| 85 | /** |
| 86 | * The CTA destination: the Calypso site overview, which opens the offer modal from the |
| 87 | * `difm-offer` parameter. The base is built as the AI assistant banner builds its CTA. |
| 88 | * |
| 89 | * Raw escaping, not esc_url(): the URL goes out in JSON, and esc_url() would turn `&` into `&`. |
| 90 | * |
| 91 | * @return string |
| 92 | */ |
| 93 | private static function get_cta_url() { |
| 94 | return esc_url_raw( |
| 95 | add_query_arg( |
| 96 | array( |
| 97 | 'difmOffer' => 'open', |
| 98 | 'source' => 'site-setup', |
| 99 | ), |
| 100 | wpcom_get_calypso_origin() . '/sites/' . wpcom_get_site_slug() |
| 101 | ) |
| 102 | ); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Every check that comes before the experiment assignment, cheapest and most decisive first. |
| 107 | * |
| 108 | * @param int $now Unix time to judge the site age against. |
| 109 | * @return bool |
| 110 | */ |
| 111 | private static function is_eligible( $now ) { |
| 112 | // The REST route only needs edit_posts, but the page that shows the banner needs |
| 113 | // manage_options. Without this, an Author who calls the route would join the experiment. |
| 114 | if ( ! current_user_can( 'manage_options' ) ) { |
| 115 | return false; |
| 116 | } |
| 117 | |
| 118 | // Eligible plans never run on Atomic, and the checks below read Simple-only data. |
| 119 | if ( ! ( new Host() )->is_wpcom_simple() ) { |
| 120 | return false; |
| 121 | } |
| 122 | |
| 123 | $blog_id = get_current_blog_id(); |
| 124 | |
| 125 | return self::has_eligible_plan() |
| 126 | && self::is_recent_site( $now ) |
| 127 | && self::is_english_user() |
| 128 | && ! wpcom_has_blog_sticker( 'a4a-is-dev-site', $blog_id ) |
| 129 | && ! wpcom_has_blog_sticker( 'difm-lite-in-progress', $blog_id ) |
| 130 | && ! self::is_dismissed(); |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * Whether the site's plan is one the offer is for. A Simple site with no plan bundle is on the Free plan. |
| 135 | * |
| 136 | * Fails closed when the purchases helper is missing: an empty list would otherwise read as Free. |
| 137 | * |
| 138 | * @return bool |
| 139 | */ |
| 140 | private static function has_eligible_plan() { |
| 141 | if ( ! function_exists( 'wpcom_expiry_get_purchases' ) ) { |
| 142 | return false; |
| 143 | } |
| 144 | |
| 145 | // Real plan bundles only, as in wpcom_ai_assistant_banner_tracks_props(): the slug fallback |
| 146 | // would also match add-ons such as Professional Email Premium. |
| 147 | $bundles = wp_list_filter( (array) wpcom_expiry_get_purchases(), array( 'product_type' => 'bundle' ) ); |
| 148 | $plan = Expiry_Data::pick_primary_plan_purchase( $bundles ); |
| 149 | $slug = $plan && isset( $plan->product_slug ) && is_string( $plan->product_slug ) ? $plan->product_slug : 'free_plan'; |
| 150 | |
| 151 | return in_array( $slug, self::ELIGIBLE_PLAN_SLUGS, true ); |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * Whether the site is at most MAX_SITE_AGE_DAYS old. |
| 156 | * |
| 157 | * Reads the blog's `registered` date, the source of `created_at` in the sites API. It is a GMT |
| 158 | * `Y-m-d H:i:s` string. There is no lower bound, as in Calypso. |
| 159 | * |
| 160 | * @param int $now Unix time to judge the site age against. |
| 161 | * @return bool |
| 162 | */ |
| 163 | private static function is_recent_site( $now ) { |
| 164 | if ( ! function_exists( 'get_blog_details' ) ) { |
| 165 | return false; |
| 166 | } |
| 167 | |
| 168 | $details = get_blog_details( get_current_blog_id() ); |
| 169 | $registered = is_object( $details ) && isset( $details->registered ) ? (string) $details->registered : ''; |
| 170 | // strtotime( ' UTC' ) returns the current time, so a missing date would read as a new site. |
| 171 | if ( '' === $registered ) { |
| 172 | return false; |
| 173 | } |
| 174 | |
| 175 | $created_at = strtotime( $registered . ' UTC' ); |
| 176 | |
| 177 | // A never-set registered date is all zeros, which parses to a time before the epoch. |
| 178 | if ( false === $created_at || $created_at <= 0 ) { |
| 179 | return false; |
| 180 | } |
| 181 | |
| 182 | return $now - $created_at <= self::MAX_SITE_AGE_DAYS * DAY_IN_SECONDS; |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Whether the user's interface language is English, in Calypso's slug format. |
| 187 | * |
| 188 | * WordPress.com stores slugs such as `en` and `en-gb`; core stores `en_US` and `en_GB`. Both map |
| 189 | * onto Calypso's set, where `en` is US English. |
| 190 | * |
| 191 | * @return bool |
| 192 | */ |
| 193 | private static function is_english_user() { |
| 194 | $slug = str_replace( '_', '-', strtolower( (string) get_user_locale() ) ); |
| 195 | if ( 'en-us' === $slug ) { |
| 196 | $slug = 'en'; |
| 197 | } |
| 198 | |
| 199 | return in_array( $slug, self::ENGLISH_LOCALES, true ); |
| 200 | } |
| 201 | |
| 202 | /** |
| 203 | * Whether the user dismissed the offer on any surface. Fails closed when the preferences are unreadable. |
| 204 | * |
| 205 | * @return bool |
| 206 | */ |
| 207 | private static function is_dismissed() { |
| 208 | if ( ! function_exists( 'get_user_attribute' ) ) { |
| 209 | return true; |
| 210 | } |
| 211 | |
| 212 | $preferences = get_user_attribute( get_current_user_id(), 'calypso_preferences' ); |
| 213 | |
| 214 | return is_array( $preferences ) && ! empty( $preferences[ self::DISMISSED_PREFERENCE ] ); |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * The user's experiment variation. Assigns the user on first call. |
| 219 | * |
| 220 | * @return string|null |
| 221 | */ |
| 222 | private static function get_variation() { |
| 223 | /** |
| 224 | * Overrides the DIFM offer experiment assignment on the Site Setup page, for testing. |
| 225 | * |
| 226 | * The eligibility checks still apply; only the assignment is replaced. |
| 227 | * |
| 228 | * @param bool|null $override True to force the treatment, false to force control, or null to ask ExPlat. |
| 229 | */ |
| 230 | $override = apply_filters( 'wpcom_ai_launchpad_difm_offer_override_is_treatment', null ); |
| 231 | if ( null !== $override ) { |
| 232 | return $override ? self::TREATMENT : 'control'; |
| 233 | } |
| 234 | |
| 235 | if ( ! function_exists( '\ExPlat\assign_current_user' ) ) { |
| 236 | return null; |
| 237 | } |
| 238 | |
| 239 | return \ExPlat\assign_current_user( self::EXPERIMENT ); |
| 240 | } |
| 241 | } |