<?php

namespace App\Model\Event;

use App\DB;
use App\Model\Event;

class SendUnits extends Event
{
  /**
   * @return void
   */
  public function __invoke(): void
  {
    $payload = json_decode($this->payload, true);

    if ($payload['type'] === 'Recall' || $payload['type'] === 'SendBack') {
      DB::query(
        <<<SQL
        insert into village_units (amount, type, is_traveling, home_village_id, residence_village_id)
        values (:amount, :type, false, :id, :id)
          on conflict (type, home_village_id, residence_village_id)
          do update set amount = village_units.amount+:amount
        SQL,
        ['amount' => $payload['amount'], 'type' => $payload['unit'], 'id' => $payload['destination']]
      );
    }

    else if ($payload['type'] === 'Borrow') {
      DB::query(
        <<<SQL
        insert into village_units (amount, type, is_traveling, home_village_id, residence_village_id, created_at, updated_at)
        values (:amount, :type, false, :home, :residence, now(), now())
          on conflict (type, home_village_id, residence_village_id)
          do update set amount = village_units.amount+:amount
        SQL,
        ['amount' => $payload['amount'], 'type' => $payload['unit'], 'home' => $this->villageId, 'residence' => $payload['destination']]
      );
    }
  }
}