/**

// request goes to submit tribes...

// idea is to have one function call that does everything...
$feedback_after_submission_service = new FeedbackAfterSubmission($tribe_ids);
$scenario_data = $feedback_after_submission_service->getScenario($tribe_ids);

// Possible workflow
Step 1: Find out which scenarios are true
Step 2: Randomly choose a scenario
Step 3: For randomly chosen scenario, filter all_data from the sql queries
Step 4: Return scenario validity per tribe + all_data to front-end
Step 5: In AJAX response, send response to React
Step 6: Store Data in React State
Step 7: Container View determines which scenario to display
 */

// example functions in the service class
class FeedbackAfterSubmissionService
{
  const SCENARIO_1 = 'scenario_1';
  const SCENARIO_1_VALIDATOR = 'scenario_1_validator';

  public function __construct (
    array $tribe_ids
  )
  {
    $this->tribe_ids = $tribe_ids;

    $this->scenario_validators = [
      $this->scenario_1 => $this->scenario_1_validator
    ]

    $this->valid_scenarios = [];
  }

  // this is the main function that gets called by the calling class
  public function getScenario ()
  {
      $valid_scenarios = $this->validateScenarios($tribe_ids);
      $chosen_scenario = $this->getRandomlyChosenScenario(array_keys($valid_scenarios));
      $scenario_data_per_tribe_id = $this->getScenarioDataPerTribeId(
        array_values($valid_scenarios)
      );

      return [
        'chosen_scenario' => $chosen_scenario,
        'scenario_data_per_tribe_id' => $scenario_data_per_tribe_id,
      ]
  }

  private function getRandomlyChoosenScenario($valid_scenarios)
  {
    $random_index = rand(0, sizeof($valid_scenarios) - 1);
    return $valid_scenarios[$random_index];
  }

  private function validateScenarios ()
  {
    foreach($this->scenario_validators as $scenario => $scenario_validator) {
      $valid_tribe_ids_for_scenario = $scenario_validator();

      if (sizeof($valid_tribe_ids_for_scenario) > 0) {
        $valid_scenarios[$scenario] = $valid_tribe_ids_for_scenario;
      }
    }
  }

  private function validateScenario1 ()
  {
    $valid_scenarios = [];
    foreach($this->tribe_ids as $tribe_id) {
      // conditional
    }

    return $valid_scenarios;
  }
}