Method setStatus

packages/db/src/collection/subscription.ts:269–293

* Set subscription status and emit events if changed

(newStatus: SubscriptionStatus)

   * Set subscription status and emit events if changed
   */
  private setStatus(newStatus: SubscriptionStatus) {
    if (this._status === newStatus) {
      return // No change
    }

    const previousStatus = this._status
    this._status = newStatus

    // Emit status:change event
    this.emitInner(`status:change`, {
      type: `status:change`,
      subscription: this,
      previousStatus,
      status: newStatus,
    })

    // Emit specific status event
    const eventKey: `status:${SubscriptionStatus}` = `status:${newStatus}`
    this.emitInner(eventKey, {
      type: eventKey,
      subscription: this,
      previousStatus,
      status: newStatus,
    } as SubscriptionEvents[typeof eventKey])
  }

  /**
   * Track a loadSubset promise and manage loading status