portal/app/Http/Resources/TransactionResource.php

<?php

namespace App\Http\Resources;

use App\Classes\ValueObjects\Constants\ApprovalStatus;
use App\Classes\ValueObjects\Constants\DocumentType;
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),
            'documents' => DocumentResource::collection($this->documents),
            'type' => (int) $this->type,
            'bill_no' => $this->bill_no,
            'amount' => (double) $this->amount,
            'outstanding' => (double) $this->amount - ($this->transactions()->where('type', TransactionType::PAYMENT)->whereIn('status', [ApprovalStatus::APPROVED, ApprovalStatus::COMPLETED])->sum('amount')),
            'service_charge' => (double) $this->service_charge,
            'tax' => (double) $this->tax,
            'original_amount' => (double) $this->original_amount,
            'currency' => new CurrencyResource($this->currency),
            'original_currency' => new CurrencyResource($this->original_currency),
            'currency_rate' => (double) $this->currency_rate,
            'status' => (int) $this->status,
            'details' => TransactionDetailResource::collection($this->transactionDetails),
            'transactions' => TransactionResource::collection($this->transactions),
            'payment_attempts' => TransactionResource::collection(
                $this->transactions()
                    ->payments()->where('status', ApprovalStatus::PENDING_SUBMISSION)
                    ->get()
            ),
            'payment_history' => TransactionResource::collection(
                $this->transactions()
                    ->payments()
                    ->whereIn('status', [ApprovalStatus::APPROVED, ApprovalStatus::PENDING_VERIFICATION, ApprovalStatus::COMPLETED, ApprovalStatus::REJECTED])
                    ->get()
            ),
            'remarks' => RemarkResource::collection($this->remarks),
            'expires_on' => Carbon::parse($this->expires_on)->format('d-m-Y h:s:i'),
            'updated_at' => Carbon::parse($this->update_at)->format('d-m-Y')
        ];
    }
}