Events

tilttek/progression-bundle

The projection and the sweep tell the application's event dispatcher:

Event	Dispatched when	Carries
`Tilttek\ProgressionBundle\Infrastructure\Event\LevelUp`	A subject reaches a higher level of a track	`change`: a `LevelChange` (track, subject, season, from, to, moment, activity)
`Tilttek\ProgressionBundle\Infrastructure\Event\LevelDown`	A cancellation takes a subject back to a lower level	`change`
`Tilttek\Progression\ReachedMilestone`	A subject passes a milestone, once per season	track, milestone, subject, member, season, moment, activity
`Tilttek\Progression\Streak\StreakBroken`	A member's streak breaks, once	streak, member, length, last active unit, moment

Rewarding a milestone

#[AsEventListener]
final readonly class RewardMilestones
{
    public function __construct(private Points $points) {}

    public function __invoke(ReachedMilestone $reached): void
    {
        $this->points->grant($reached->member, 100, 'milestone:'.$reached->track.':'.$reached->milestone.':'.$reached->subject->toString().':'.$reached->season);
    }
}

The key makes the grant written once even if the listener runs twice. During a rebuild only the levels above those held before are told, and neither a level lost nor a broken streak is; milestones are never told again.