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| 1 | <?php |
| 2 | |
| 3 | namespace GrowthExperiments\MentorDashboard\PersonalizedPraise; |
| 4 | |
| 5 | use GrowthExperiments\EventLogging\PersonalizedPraiseLogger; |
| 6 | use GrowthExperiments\Mentorship\Store\MentorStore; |
| 7 | use GrowthExperiments\UserImpact\DatabaseUserImpactStore; |
| 8 | use GrowthExperiments\UserImpact\UserImpact; |
| 9 | use GrowthExperiments\UserImpact\UserImpactLookup; |
| 10 | use MediaWiki\User\Options\UserOptionsManager; |
| 11 | use MediaWiki\User\UserIdentity; |
| 12 | use Psr\Log\LoggerAwareTrait; |
| 13 | use Wikimedia\LightweightObjectStore\ExpirationAwareness; |
| 14 | use Wikimedia\ObjectCache\BagOStuff; |
| 15 | use Wikimedia\ScopedCallback; |
| 16 | use Wikimedia\Timestamp\ConvertibleTimestamp; |
| 17 | |
| 18 | class PraiseworthyMenteeSuggester { |
| 19 | use LoggerAwareTrait; |
| 20 | |
| 21 | private const EXPIRATION_TTL = ExpirationAwareness::TTL_DAY; |
| 22 | |
| 23 | private BagOStuff $globalCache; |
| 24 | private UserOptionsManager $userOptionsManager; |
| 25 | private PraiseworthyConditionsLookup $praiseworthyConditionsLookup; |
| 26 | private PersonalizedPraiseNotificationsDispatcher $notificationsDispatcher; |
| 27 | private PersonalizedPraiseLogger $eventLogger; |
| 28 | private MentorStore $mentorStore; |
| 29 | private UserImpactLookup $userImpactLookup; |
| 30 | |
| 31 | /** |
| 32 | * @param BagOStuff $globalCache |
| 33 | * @param UserOptionsManager $userOptionsManager |
| 34 | * @param PraiseworthyConditionsLookup $praiseworthyConditionsLookup |
| 35 | * @param PersonalizedPraiseNotificationsDispatcher $notificationsDispatcher |
| 36 | * @param PersonalizedPraiseLogger $personalizedPraiseLogger |
| 37 | * @param MentorStore $mentorStore |
| 38 | * @param UserImpactLookup $userImpactLookup |
| 39 | */ |
| 40 | public function __construct( |
| 41 | BagOStuff $globalCache, |
| 42 | UserOptionsManager $userOptionsManager, |
| 43 | PraiseworthyConditionsLookup $praiseworthyConditionsLookup, |
| 44 | PersonalizedPraiseNotificationsDispatcher $notificationsDispatcher, |
| 45 | PersonalizedPraiseLogger $personalizedPraiseLogger, |
| 46 | MentorStore $mentorStore, |
| 47 | UserImpactLookup $userImpactLookup |
| 48 | ) { |
| 49 | $this->globalCache = $globalCache; |
| 50 | $this->userOptionsManager = $userOptionsManager; |
| 51 | $this->praiseworthyConditionsLookup = $praiseworthyConditionsLookup; |
| 52 | $this->notificationsDispatcher = $notificationsDispatcher; |
| 53 | $this->eventLogger = $personalizedPraiseLogger; |
| 54 | $this->mentorStore = $mentorStore; |
| 55 | $this->userImpactLookup = $userImpactLookup; |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * Get array of user impacts for all active mentees assigned to $mentor |
| 60 | * |
| 61 | * @param UserIdentity $mentor |
| 62 | * @return UserImpact[] |
| 63 | */ |
| 64 | private function getUserImpactsForActiveMentees( UserIdentity $mentor ): array { |
| 65 | $mentees = $this->mentorStore->getMenteesByMentor( |
| 66 | $mentor, MentorStore::ROLE_PRIMARY, |
| 67 | false, false |
| 68 | ); |
| 69 | |
| 70 | if ( $this->userImpactLookup instanceof DatabaseUserImpactStore ) { |
| 71 | $userIds = array_map( static function ( UserIdentity $mentee ) { |
| 72 | return $mentee->getId(); |
| 73 | }, $mentees ); |
| 74 | return $this->userImpactLookup->batchGetUserImpact( $userIds ); |
| 75 | } else { |
| 76 | // There is no batching in other implementations than DatabaseUserImpactStore; fetch |
| 77 | // user impacts one by one. |
| 78 | $this->logger->error( |
| 79 | __METHOD__ . ' does not have DatabaseUserImpactStore injected, possible ' . |
| 80 | 'performance impact.' |
| 81 | ); |
| 82 | return array_map( function ( UserIdentity $mentee ) { |
| 83 | return $this->userImpactLookup->getUserImpact( $mentee ); |
| 84 | }, $mentees ); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Get list of praiseworthy mentees with no caching |
| 90 | * |
| 91 | * This will iterate through all recently active mentees assigned to the |
| 92 | * mentor in question. |
| 93 | * |
| 94 | * @param UserIdentity $mentor |
| 95 | * @return UserImpact[] |
| 96 | */ |
| 97 | public function getPraiseworthyMenteesForMentorUncached( UserIdentity $mentor ): array { |
| 98 | $impacts = $this->getUserImpactsForActiveMentees( $mentor ); |
| 99 | return array_filter( $impacts, function ( ?UserImpact $impact ) use ( $mentor ) { |
| 100 | if ( $impact === null ) { |
| 101 | return false; |
| 102 | } |
| 103 | |
| 104 | return $this->praiseworthyConditionsLookup->isMenteePraiseworthyForMentor( |
| 105 | $impact, $mentor |
| 106 | ); |
| 107 | } ); |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * @param UserIdentity $mentor |
| 112 | * @return string |
| 113 | */ |
| 114 | private function makeCacheKeyForMentor( UserIdentity $mentor ): string { |
| 115 | return $this->globalCache->makeKey( |
| 116 | 'GrowthExperiments', 'PraiseworthyMenteeSuggester', |
| 117 | UserImpact::VERSION, 'getPraiseworthyMentees', $mentor->getId() |
| 118 | ); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Acquire a lock via BagOStuff |
| 123 | * |
| 124 | * If a lock cannot be acquired, an error is logged. |
| 125 | * |
| 126 | * @param string $key |
| 127 | * @param string $caller |
| 128 | * @return ScopedCallback|null |
| 129 | * @see BagOStuff::getScopedLock() |
| 130 | */ |
| 131 | private function getScopedLock( string $key, string $caller ): ?ScopedCallback { |
| 132 | $lock = $this->globalCache->getScopedLock( $key ); |
| 133 | if ( !$lock ) { |
| 134 | $this->logger->error( |
| 135 | $caller . ' failed to acquire a lock for cache of praiseworthy mentees' |
| 136 | ); |
| 137 | } |
| 138 | return $lock; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Refresh the mentor's cache of their praiseworthy mentees |
| 143 | * |
| 144 | * @param UserIdentity $mentor |
| 145 | */ |
| 146 | public function refreshPraiseworthyMenteesForMentor( UserIdentity $mentor ): void { |
| 147 | $key = $this->makeCacheKeyForMentor( $mentor ); |
| 148 | $lock = $this->getScopedLock( $key, __METHOD__ ); |
| 149 | if ( !$lock ) { |
| 150 | return; |
| 151 | } |
| 152 | |
| 153 | $praiseworthyMentees = $this->getPraiseworthyMenteesForMentorUncached( $mentor ); |
| 154 | $this->globalCache->set( |
| 155 | $key, |
| 156 | $praiseworthyMentees, |
| 157 | self::EXPIRATION_TTL |
| 158 | ); |
| 159 | |
| 160 | $wasNotified = $this->notificationsDispatcher->maybeNotifyAboutPendingMentees( $mentor ); |
| 161 | foreach ( $praiseworthyMentees as $impact ) { |
| 162 | $this->eventLogger->logSuggested( $mentor, $impact->getUser(), $wasNotified ); |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Get cached list of praiseworthy mentees for mentor |
| 168 | * |
| 169 | * @param UserIdentity $mentor |
| 170 | * @return UserImpact[] ID => UserImpact mapping |
| 171 | */ |
| 172 | public function getPraiseworthyMenteesForMentor( UserIdentity $mentor ): array { |
| 173 | $key = $this->makeCacheKeyForMentor( $mentor ); |
| 174 | $lock = $this->getScopedLock( $key, __METHOD__ ); |
| 175 | if ( !$lock ) { |
| 176 | return []; |
| 177 | } |
| 178 | |
| 179 | $res = $this->globalCache->get( $key ); |
| 180 | if ( !$res ) { |
| 181 | return []; |
| 182 | } |
| 183 | return $res; |
| 184 | } |
| 185 | |
| 186 | /** |
| 187 | * @param UserIdentity $mentee |
| 188 | * @param UserIdentity $mentor |
| 189 | * @return bool |
| 190 | */ |
| 191 | public function isMenteeMarkedAsPraiseworthy( UserIdentity $mentee, UserIdentity $mentor ): bool { |
| 192 | $praiseworthyIds = array_keys( $this->getPraiseworthyMenteesForMentor( $mentor ) ); |
| 193 | return in_array( $mentee->getId(), $praiseworthyIds ); |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * Mark a mentee as praiseworthy |
| 198 | * |
| 199 | * Caller is responsible for checking whether mentee is praiseworthy or not; |
| 200 | * this can be done by calling PraiseworthyConditionsLookup::isMenteePraiseworthyForMentor. |
| 201 | * |
| 202 | * @param UserImpact $menteeImpact |
| 203 | * @param UserIdentity $mentorUser |
| 204 | */ |
| 205 | public function markMenteeAsPraiseworthy( |
| 206 | UserImpact $menteeImpact, |
| 207 | UserIdentity $mentorUser |
| 208 | ): void { |
| 209 | if ( $this->isMenteeMarkedAsPraiseworthy( $menteeImpact->getUser(), $mentorUser ) ) { |
| 210 | // already done |
| 211 | return; |
| 212 | } |
| 213 | |
| 214 | $key = $this->makeCacheKeyForMentor( $mentorUser ); |
| 215 | $lock = $this->getScopedLock( $key, __METHOD__ ); |
| 216 | if ( !$lock ) { |
| 217 | return; |
| 218 | } |
| 219 | |
| 220 | $data = $this->globalCache->get( $key ); |
| 221 | if ( !$data ) { |
| 222 | $data = []; |
| 223 | } |
| 224 | $data[$menteeImpact->getUser()->getId()] = $menteeImpact; |
| 225 | $this->globalCache->set( $key, $data, self::EXPIRATION_TTL ); |
| 226 | |
| 227 | $this->notificationsDispatcher->onMenteeSuggested( $mentorUser, $menteeImpact->getUser() ); |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Remove a mentee from the list of praiseworthy mentees |
| 232 | * |
| 233 | * @param UserIdentity $mentee |
| 234 | */ |
| 235 | private function removeMenteeFromSuggestions( UserIdentity $mentee ): void { |
| 236 | $mentor = $this->mentorStore->loadMentorUser( $mentee, MentorStore::ROLE_PRIMARY ); |
| 237 | if ( !$mentor ) { |
| 238 | return; |
| 239 | } |
| 240 | |
| 241 | if ( $this->isMenteeMarkedAsPraiseworthy( $mentee, $mentor ) ) { |
| 242 | $this->globalCache->merge( |
| 243 | $this->makeCacheKeyForMentor( $mentor ), |
| 244 | static function ( $cache, $key, $value ) use ( $mentee ) { |
| 245 | if ( array_key_exists( $mentee->getId(), $value ) ) { |
| 246 | unset( $value[$mentee->getId()] ); |
| 247 | } |
| 248 | return $value; |
| 249 | } |
| 250 | ); |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Mark a mentee as already praised |
| 256 | * |
| 257 | * @param UserIdentity $mentee |
| 258 | */ |
| 259 | public function markMenteeAsPraised( UserIdentity $mentee ): void { |
| 260 | $this->userOptionsManager->setOption( |
| 261 | $mentee, |
| 262 | PraiseworthyConditionsLookup::WAS_PRAISED_PREF, |
| 263 | true |
| 264 | ); |
| 265 | $this->userOptionsManager->saveOptions( $mentee ); |
| 266 | |
| 267 | $this->removeMenteeFromSuggestions( $mentee ); |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * Mark a mentee as skipped |
| 272 | * |
| 273 | * The mentee will not be re-suggested for PraiseworthyConditionsLookup::SKIP_MENTEES_FOR_DAYS |
| 274 | * days. |
| 275 | * |
| 276 | * @param UserIdentity $mentee |
| 277 | */ |
| 278 | public function markMenteeAsSkipped( UserIdentity $mentee ): void { |
| 279 | $this->userOptionsManager->setOption( |
| 280 | $mentee, |
| 281 | PraiseworthyConditionsLookup::SKIPPED_UNTIL_PREF, |
| 282 | ( new ConvertibleTimestamp() ) |
| 283 | ->add( 'P' . PraiseworthyConditionsLookup::SKIP_MENTEES_FOR_DAYS . 'D' ) |
| 284 | ->getTimestamp( TS_MW ) |
| 285 | ); |
| 286 | $this->userOptionsManager->saveOptions( $mentee ); |
| 287 | |
| 288 | $this->removeMenteeFromSuggestions( $mentee ); |
| 289 | } |
| 290 | } |