exchange-2.0/app/Http/Resources/TransactionResource.php

<?php

namespace App\Http\Resources;

use App\Classes\ValueObjects\Constants\TransactionType;
use Carbon\Carbon;
use Illuminate\Http\Resources\Json\JsonResource;

class TransactionResource extends JsonResource
{
    /**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array
     */
    public function toArray($request)
    {
        return [
            'id' => $this->id,
            'booking' => new BookingResource($this->booking),
            'type' => (int) $this->type,
            'bill_no' => $this->bill_no,
            'amount' => (double) $this->amount,
            'original_amount' => (double) $this->original_amount,
            'currency' => new CurrencyResource($this->currency),
            'original_currency' => new CurrencyResource($this->original_currency),
            'service_charge' => (double) $this->service_charge,
            'tax' => (double) $this->tax,
            'currency_rate' => (double) $this->currency_rate,
            'status' => (int) $this->status,
            'details' => TransactionDetailResource::collection($this->transactionDetails),
            'documents' => new DocumentResource($this->documents()->first()),
            'customer_booking' => new TransactionResource($this->when((int) $this->type === TransactionType::BILL, $this->booking->transactions()->payments()->complete()->where('original_amount', '=', $this->original_amount)->where('id', '<', $this->id)->orderByDesc('id')->first())),
            'expires_on' => Carbon::parse($this->expires_on)->format('d-m-Y h:i:s A'),
            'updated_at' => Carbon::parse($this->updated_at)->format('d-m-Y h:i:s A')
        ];
    }
}