<?php

namespace App\Http\Resources\Api\Service\Order;

use App\Enums\Invoice\InvoiceStatus;
use App\Enums\Order\OrderStatus;
use App\Models\InvoiceAttachment;
use App\Services\InvoicePaymentService;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

class OrderDetailResource extends JsonResource
{
    use ResolvesPaymentMethod;

    private const INVOICE_TYPE_LABELS = [1 => 'Đơn mới', 2 => 'Gia hạn', 3 => 'Nâng cấp'];

    public function toArray(Request $request): array
    {
        return [
            'id' => $this->id,
            'order_num' => $this->order_num,
            'status' => $this->status,
            'status_text' => OrderStatus::from((int) $this->status)->label(),
            'total' => (float) $this->total,
            'created_at' => $this->created_at?->toISOString(),
            'customer' => $this->whenLoaded('customer', fn () => [
                'id' => $this->customer->id,
                'name' => $this->customer->fullname,
                'email' => $this->customer->email,
            ]),
            'invoice' => $this->whenLoaded('invoice', fn () => [
                'id' => $this->invoice->id,
                'invoice_number' => $this->invoice->invoice_number,
                'status' => $this->invoice->status,
                'status_text' => InvoiceStatus::tryFrom((int) $this->invoice->status)?->label() ?? '-',
                'sub_total' => (float) $this->invoice->sub_total,
                'tax' => (float) $this->invoice->tax,
                'total' => (float) $this->invoice->total,
                'due_date' => $this->invoice->due_date?->toISOString(),
                'paid_at' => $this->invoice->paid_at?->toISOString(),
                'payment_method' => $this->resolvePaymentMethod($this->invoice),
            ]),
            'invoices' => $this->whenLoaded('invoices', fn () => $this->invoices
                ->sortByDesc('id')
                ->values()
                ->map(fn ($invoice) => [
                    'id' => $invoice->id,
                    'invoice_number' => $invoice->invoice_number,
                    'invoice_type' => (int) $invoice->invoice_type,
                    'type_text' => self::INVOICE_TYPE_LABELS[(int) $invoice->invoice_type] ?? 'Hóa đơn',
                    'status' => (int) $invoice->status,
                    'status_text' => InvoiceStatus::tryFrom((int) $invoice->status)?->label() ?? '-',
                    'total' => (float) $invoice->total,
                    'amount_paid' => (float) $invoice->amount_paid,
                    'due_date' => $invoice->due_date?->toISOString(),
                    'paid_at' => $invoice->paid_at?->toISOString(),
                    'billing_period_start' => $invoice->billing_period_start,
                    'billing_period_end' => $invoice->billing_period_end,
                    'payable' => in_array((int) $invoice->status, InvoicePaymentService::PAYABLE_STATUSES, true),
                    'payment_url' => $invoice->setRelation('order', $this->resource)->clientPath(),
                ])),
            'contracts' => $this->whenLoaded('invoices', fn () => $this->invoices
                ->flatMap(fn ($invoice) => $invoice->relationLoaded('attachments')
                    ? $invoice->attachments
                        ->where('type', InvoiceAttachment::TYPE_CONTRACT)
                        ->map(fn ($attachment) => [
                            'id' => $attachment->id,
                            'filename' => $attachment->filename,
                            'mime_type' => $attachment->mime_type,
                            'size' => (int) $attachment->size,
                            'invoice_number' => $invoice->invoice_number,
                            'uploaded_at' => $attachment->created_at?->toISOString(),
                        ])
                    : collect())
                ->values()),
            'items' => $this->whenLoaded('orderItems') ? OrderItemResource::collection($this->orderItems) : [],
        ];
    }
}