<?php

namespace App\Services\Notification\Abstracts;

use App\Models\Action;
use App\Models\Approval;
use App\Models\Enums\ApprovalMode;
use App\Models\Enums\NotificationObjectType;
use App\Models\Enums\ObjectAction;
use App\Models\Notification;
use App\Models\NotificationRecord;
use App\Services\Notification\Contacts\ActionBrowserNotificationContacts;
use App\Services\Notification\Traits\ObjectActionApprovalNotificationUserHelper;
use Illuminate\Database\Eloquent\Model;

abstract class ActionBrowserNotificationAbstract implements ActionBrowserNotificationContacts
{
    use ObjectActionApprovalNotificationUserHelper;

    protected ObjectAction $objectAction;

    public function __construct(protected Action $action,  protected Model $object)
    {
        $this->objectAction = ObjectAction::tryFrom($this->action->action);
    }

    public function handle()
    {
        if ($this->objectAction->isApproval()) {
            $this->handleByApprovalAction();
        } else {
            $this->handleByObjectAction($this->userIDs());
        }
    }

    abstract protected function userIDs(): array;

    protected function handleByApprovalAction()
    {
        $approval = Approval::query()->find($this->action->additional_id);
        if (! $approval) {
            return;
        }

        list($approvalUserIDs, $notifiedUserIDs) = $this->objectActionApprovalNotificationUserIDs($approval, $this->action);

        $this->storeNotification($notifiedUserIDs);

        $this->storeNotification($approvalUserIDs, [
            'action' => 'waitingForMyApproval'
        ]);
    }


    protected function handleByObjectAction(array $userIDs)
    {
        $this->storeNotification($userIDs);
    }

    protected function storeNotification(array $userIds, array $extraFields = [])
    {
        if (! $userIds) {
            return;
        }

        $notification =  Notification::query()->create([
            'object_type' => NotificationObjectType::ACTION->value,
            'object_id' => $this->action->id,
            'extra_fields' => $extraFields ?: null,
        ]);

        foreach ($userIds as $userId) {
            NotificationRecord::query()->create([
                'notification_id' => $notification->id,
                'user_id' => $userId,
            ]);
        }
    }

    protected function notificationNextApprovalUsers(Approval $approval)
    {
        $approvalFlow = $approval->approvalFlow()->first();
        if (! $approvalFlow) {
            return;
        }

        $nextNode = $approvalFlow->nodes[$this->action->extra_fields['next']];
        $approvalObjectUsers = array_values(array_filter(explode(',', $approval->users)));

        $userIds = match (ApprovalMode::tryFrom($nextNode['approval_mode'])) {
            ApprovalMode::ALTERNATIVE_APPROVAL, ApprovalMode::COUNTERSIGNATURE => $nextNode['approval_users'] ?? [],
            ApprovalMode::SEQUENTIAL_APPROVAL => $this->action->extra_fields['next_sequential_user'] ?? [],
            default => [],
        };

        $this->storeNotification($userIds, [
            'action' => 'waitingForMyApproval'
        ]);
    }
}