<?php

namespace App\Http\Resources\Api\Admin;

use App\Support\Billing\BillingDuplicateDetector;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

class InvoiceResource extends JsonResource
{
    public function toArray(Request $request): array
    {
        return [
            'id'              => $this->id,
            'invoice_number'  => $this->invoice_number,
            'duplicate'       => BillingDuplicateDetector::forInvoice($this->id),
            'order_num'       => $this->whenLoaded('order', fn() => $this->order?->order_num),
            'order_items'     => $this->when(
                $this->relationLoaded('order') && $this->order?->relationLoaded('orderItems'),
                fn() => OrderItemServiceResource::collection($this->order->orderItems)->resolve(),
            ),
            'customer'        => $this->whenLoaded('customer', fn() => [
                'id'       => $this->customer->id,
                'uuid'     => $this->customer->uuid,
                'fullname' => $this->customer->fullname,
                'email'    => $this->customer->email,
            ]),
            'sub_total'       => $this->sub_total,
            'discount_amount' => $this->discount_amount,
            'coupon_code'     => $this->coupon_code,
            'tax'             => $this->tax,
            'total'           => $this->total,
            // Công nợ: đã thu bao nhiêu / còn thiếu bao nhiêu. Kế toán cần thấy ngay trên
            // danh sách thay vì phải suy từ số dư ví của khách.
            'amount_paid'     => (int) $this->amount_paid,
            'outstanding'     => \App\Services\InvoicePaymentService::outstanding($this->resource),
            'status'          => $this->status,
            'is_starred' => (bool) $this->is_starred,
            'tags'       => $this->whenLoaded('tags'),
            'due_date'        => $this->due_date,
            'paid_at'         => $this->paid_at,
            'reminder_step'   => (int) $this->reminder_step,
            'created_at'      => $this->created_at,
            'updated_at'      => $this->updated_at,
        ];
    }
}