<?php

namespace App\Services;

use App\Models\Shipment;
use App\Models\ShipmentItem;
use Dompdf\Dompdf;
use Dompdf\Options;
use Illuminate\Support\Collection;

class PdfService
{
    public function awb(Shipment $shipment): string
    {
        $shipment->loadMissing(['fromCountry', 'toCountry', 'items']);

        $data = [
            'shipment' => $shipment,
            'shipper' => $this->formatAddress($shipment, 'sender'),
            'receiver' => $this->formatAddress($shipment, 'receiver'),
            'items' => $shipment->items ?? collect(),
            'invoice_total_usd' => optional($shipment->items)->sum('total_usd') ?? 0,
        ];

        $html = view('pdfs.awb', $data)->render();

        return $this->generatePdf($html, 'A4', 'portrait');
    }

    public function invoice(Shipment $shipment): string
    {
        $shipment->loadMissing(['fromCountry', 'toCountry', 'items']);

        $data = [
            'shipment' => $shipment,
            'shipper' => $this->formatAddress($shipment, 'sender'),
            'receiver' => $this->formatAddress($shipment, 'receiver'),
            'items' => $shipment->items ?? collect(),
            'invoice_total_usd' => optional($shipment->items)->sum('total_usd') ?? 0,
        ];

        $html = view('pdfs.invoice', $data)->render();

        return $this->generatePdf($html, 'A4', 'portrait');
    }

    public function label(Shipment $shipment): string
    {
        $shipment->loadMissing(['fromCountry', 'toCountry']);

        $data = [
            'shipment' => $shipment,
            'shipper' => $this->formatAddress($shipment, 'sender'),
            'receiver' => $this->formatAddress($shipment, 'receiver'),
        ];

        $html = view('pdfs.label', $data)->render();

        return $this->generatePdf($html, 'A4', 'portrait');
    }

    private function generatePdf(string $html, array|string $paper, string $orientation): string
    {
        $options = new Options();
        $options->set('isHtml5ParserEnabled', true);
        $options->set('isRemoteEnabled', true);
        $options->set('defaultFont', 'DejaVu Sans');

        $dompdf = new Dompdf($options);
        $dompdf->loadHtml($html);
        
        if (is_array($paper)) {
            $dompdf->setPaper($paper, $orientation);
        } else {
            $dompdf->setPaper($paper, $orientation);
        }
        
        $dompdf->render();

        return $dompdf->output();
    }

    private function formatAddress(Shipment $shipment, string $prefix): Collection
    {
        return collect([
            'name' => $shipment->{$prefix . '_name'},
            'company' => $shipment->{$prefix . '_company'},
            'phone' => $shipment->{$prefix . '_phone'},
            'email' => $shipment->{$prefix . '_email'},
            'address' => $shipment->{$prefix . '_address'},
            'city' => $shipment->{$prefix . '_city'},
            'zip' => $shipment->{$prefix . '_zip'},
            'id_number' => $shipment->{$prefix . '_id_number'},
        ]);
    }
}