<?php
namespace ABeCe\Booking\Service;
use ABeCe\Booking\Domain\CatalogException;
use ABeCe\Booking\Repository\BookingsRepository;
use ABeCe\Booking\Repository\ResourcesRepository;
use ABeCe\Booking\Support\Capabilities;
use ABeCe\Booking\Support\Money;
use ABeCe\Booking\Support\Time;
final class BookingCancellationService {
 public function __construct(private readonly BookingService $service,private readonly BookingsRepository $bookings,private readonly ResourcesRepository $resources,private readonly NotificationService $mailer){}
 private function calculate(array $b,array $input,int $actor): array {
  BookingValidator::fields($input,['reason','mode','custom_fee','expected_fee']);
  if('confirmed'!==$b['status']||(!user_can($actor,Capabilities::MANAGE_BOOKINGS)&&Time::fromSql($b['starts_at'])<=time()))throw new CatalogException('abece_booking_cancellation_unavailable',__('This booking can no longer be cancelled.','abece-booking'),409);
  $mode=CatalogValidator::choice($input['mode']??'standard','mode',['standard','waive','custom']);
  $calculation=CancellationPolicyService::cancellation($b);$calculation['standard_fee']=$calculation['calculated_fee'];$calculation['override']=null;
  if('standard'!==$mode){
   self::requireOverride($actor);$reason=MembershipValidator::text($input['reason']??null,'reason',255);
   $fee='waive'===$mode?0:CatalogValidator::integer($input['custom_fee']??null,'custom_fee',0,$b['final_amount']);
   $calculation['calculated_fee']=$fee;$calculation['override']=['mode'=>$mode,'reason'=>$reason,'performed_by_user_id'=>$actor];
  }elseif(array_key_exists('custom_fee',$input))CatalogValidator::invalid('custom_fee',__('A custom fee requires the custom override mode.','abece-booking'));
  return $calculation+$this->service->payments->settlement->calculate(array_replace($b,['status'=>'cancelled','cancellation_fee'=>$calculation['calculated_fee']]));
 }
 public static function requireOverride(int $actor): void {
  if(!user_can($actor,Capabilities::MANAGE_BOOKINGS)||!user_can($actor,Capabilities::OVERRIDE_CANCELLATION_FEES))throw new CatalogException('abece_booking_fee_override_forbidden',__('You do not have permission to override cancellation fees.','abece-booking'),403);
 }
 public function quote(int $id,array $input,int $actor): array {
  $rid=$this->service->owned($id,$actor)['resource_id'];return $this->bookings->customerTransaction($id,[$rid],fn()=>$this->calculate($this->service->lockOwned($id,$actor,[$rid]),$input,$actor));
 }
 public function cancel(int $id,array $input,int $actor,bool $notify=true): array {
  $reason=BookingValidator::note($input['reason']??null,'reason');$rid=$this->service->owned($id,$actor)['resource_id'];
  $booking=$this->bookings->customerTransaction($id,[$rid],function()use($id,$input,$actor,$reason,$rid){
   $b=$this->service->lockOwned($id,$actor,[$rid]);$calculation=$this->calculate($b,$input,$actor);
   if(array_key_exists('expected_fee',$input)&&CatalogValidator::integer($input['expected_fee'],'expected_fee',0,Money::MAX)!==$calculation['calculated_fee'])throw new CatalogException('abece_booking_cancellation_quote_changed',__('The cancellation fee changed. Review a new quote before confirming.','abece-booking'),409);
   $stamp=current_time('mysql',true);$fields=($b['series_id']?['series_is_exception'=>1]:[])+['status'=>'cancelled','cancelled_at'=>$stamp,'cancelled_by_user_id'=>$actor,'cancellation_reason'=>$reason,'cancellation_fee'=>$calculation['calculated_fee'],'updated_at'=>$stamp];$this->bookings->update($id,$fields);
   $settled=$this->service->payments->settle(array_replace($b,$fields),$actor,$reason);
   $calculation['settled']=$settled;$calculation['processed_at']=$stamp;
   $this->service->recordHistory($id,'cancelled','confirmed','cancelled',$actor,$stamp,$reason,$calculation);
   if($calculation['override'])$this->service->recordHistory($id,'cancellation_fee_overridden','cancelled','cancelled',$actor,$stamp,$reason,$calculation);
   return $this->bookings->find($id);
  });if($notify)$this->mailer->send($booking,'cancelled');return $this->service->detail($id,$actor);
 }
}