shipping-portal/app/Transformers/GroupTransformer.php

<?php

namespace App\Transformers;

use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Classes\ValueObjects\Constants\DocumentType;
use App\Classes\ValueObjects\Constants\TransactionType;
use App\Models\Transaction;
use Illuminate\Support\Carbon;
use Illuminate\Support\Collection;
use League\Fractal\Resource\Item;
use League\Fractal\TransformerAbstract;

class GroupTransformer extends TransformerAbstract
{
    /**
     * List of resources to automatically include
     *
     * @var array
     */
    protected $defaultIncludes = [
        'original_currency',
        'currency',
        'documents'
    ];

    /**
     * List of resources possible to include
     *
     * @var array
     */
    protected $availableIncludes = [
        //
    ];

    /**
     * A Fractal transformer.
     *
     * @return array
     */
    public function transform(Transaction $transaction): array
    {
        return [
            'id' => $transaction->id,
            'original_amount' => (float)$transaction->original_amount,
            'issuer_name' => $transaction->issuerCompany->name,
            'issuer_id' => $transaction->issuerCompany->id,
            'amount' => (float)$transaction->amount,
            'service_charge' => (float)$transaction->amount,
            'created_at' => Carbon::parse($transaction->created_at)->format('d-m-Y h:i:s A'),
            'currency_rate' => (float)$transaction->currency_rate,
            'transactions' => $this->transactions($transaction),
            'complete_transactions' => $this->complete_transactions($transaction),
            'documents' => [
                'currency_order' => new DocumentResource($this->documents()->where('document_type', DocumentType::CURRENCY_VENDOR_ORDER)->first()),
                'purchase_order' => new DocumentResource($this->documents()->where('document_type', DocumentType::BULK_PURCHASE_ORDER)->first())
            ]
        ];
    }

    /**
     * Include Original Currency
     *
     * @param Transaction $transaction
     * @return Item
     */
    public function includeOriginalCurrency(Transaction $transaction): Item
    {
        return $this->item($transaction->original_currency, new CurrencyTransformer());
    }

    /**
     * Include Currency
     *
     * @param Transaction $transaction
     * @return Item
     */
    public function includeCurrency(Transaction $transaction): Item
    {
        return $this->item($transaction->currency, new CurrencyTransformer());
    }

    /**
     * Get Transactions
     * @param Transaction $transaction
     * @return Collection
     */
    protected function transactions(Transaction $transaction): Collection
    {
        return $transaction->transactions()->get()->pluck('owner.owner.marking');
    }

    /**
     * complete Transactions
     * @param Transaction $transaction
     * @return Collection
     */
    protected function complete_transactions(Transaction $transaction): Collection
    {
        return $transaction->transactions()->whereHasMorph('owner', [Transaction::class], function ($query) {
            return $query->whereHas('booking', function ($query) {
                return $query->whereHas('transactions', function ($query) {
                    return $query->where('type', TransactionType::PURCHASE_ORDER)->where('status', '=', ApprovalStatus::APPROVED);
                });
            });
        })->get()->pluck('owner.owner.marking');

    }

    /**
     * Include Documents
     *
     * @param Transaction $transaction
     * @return array
     */
    public function includeDocuments(Transaction $transaction): array
    {
        return [
            'currency_order' => $this->item($transaction->documents()->where('document_type', DocumentType::CURRENCY_VENDOR_ORDER)->first(), new DocumentTransformer()),
            'purchase_order' => $this->item($transaction->documents()->where('document_type', DocumentType::BULK_PURCHASE_ORDER)->first(), new DocumentTransformer())
        ];

    }

}