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| 1 | <?php |
| 2 | |
| 3 | namespace GrowthExperiments\PeriodicMetrics; |
| 4 | |
| 5 | use GrowthExperiments\Mentorship\Provider\MentorProvider; |
| 6 | use InvalidArgumentException; |
| 7 | use MediaWiki\User\UserEditTracker; |
| 8 | use MediaWiki\User\UserIdentityLookup; |
| 9 | use Wikimedia\Rdbms\LoadBalancer; |
| 10 | |
| 11 | class MetricsFactory { |
| 12 | |
| 13 | /** @var string[] */ |
| 14 | public const METRICS = [ |
| 15 | AutoAssignedMentorsMetric::class, |
| 16 | InactiveMentorsMetric::class, |
| 17 | NewcomersByMentorMetric::class, |
| 18 | ]; |
| 19 | |
| 20 | /** @var LoadBalancer */ |
| 21 | private $loadBalancer; |
| 22 | |
| 23 | /** @var UserEditTracker */ |
| 24 | private $userEditTracker; |
| 25 | |
| 26 | /** @var UserIdentityLookup */ |
| 27 | private $userIdentityLookup; |
| 28 | |
| 29 | /** @var MentorProvider */ |
| 30 | private $mentorProvider; |
| 31 | |
| 32 | /** |
| 33 | * @param LoadBalancer $loadBalancer |
| 34 | * @param UserEditTracker $userEditTracker |
| 35 | * @param UserIdentityLookup $userIdentityLookup |
| 36 | * @param MentorProvider $mentorProvider |
| 37 | */ |
| 38 | public function __construct( |
| 39 | LoadBalancer $loadBalancer, |
| 40 | UserEditTracker $userEditTracker, |
| 41 | UserIdentityLookup $userIdentityLookup, |
| 42 | MentorProvider $mentorProvider |
| 43 | ) { |
| 44 | $this->loadBalancer = $loadBalancer; |
| 45 | $this->userEditTracker = $userEditTracker; |
| 46 | $this->userIdentityLookup = $userIdentityLookup; |
| 47 | $this->mentorProvider = $mentorProvider; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * @param string $className |
| 52 | * @return IMetric |
| 53 | * @throws InvalidArgumentException if metric class name is not supported |
| 54 | */ |
| 55 | public function newMetric( string $className ): IMetric { |
| 56 | switch ( $className ) { |
| 57 | case AutoAssignedMentorsMetric::class: |
| 58 | return new AutoAssignedMentorsMetric( $this->mentorProvider ); |
| 59 | case InactiveMentorsMetric::class: |
| 60 | return new InactiveMentorsMetric( |
| 61 | $this->userEditTracker, |
| 62 | $this->userIdentityLookup, |
| 63 | $this->mentorProvider |
| 64 | ); |
| 65 | case NewcomersByMentorMetric::class: |
| 66 | return new NewcomersByMentorMetric( |
| 67 | $this, |
| 68 | $this->loadBalancer->getConnection( DB_REPLICA ) |
| 69 | ); |
| 70 | default: |
| 71 | throw new InvalidArgumentException( 'Unsupported metric class name' ); |
| 72 | } |
| 73 | } |
| 74 | } |