<?php

namespace App\Services\OnlyOffice;

use App\Models\Document;
use App\Models\User;
use Firebase\JWT\JWT;
use Illuminate\Support\Facades\URL;

class DocumentConfigBuilder
{
    public function build(Document $document, User $user, bool $editable = true): array
    {
        $config = [
            'document' => [
                'fileType' => $document->office_extension,
                'key' => $document->office_key,
                'title' => $document->name.'.'.$document->office_extension,
                'url' => $this->downloadUrl($document),
            ],
            'documentType' => $this->documentType($document->office_extension),
            'editorConfig' => [
                'mode' => $editable ? 'edit' : 'view',
                'callbackUrl' => $this->callbackUrl($document),
                'user' => [
                    'id' => (string) $user->id,
                    'name' => $user->name,
                ],
                'lang' => 'fr',
            ],
        ];

        $secret = config('onlyoffice.jwt_secret');

        if (filled($secret)) {
            $config['token'] = JWT::encode($config, $secret, 'HS256');
        }

        return $config;
    }

    protected function downloadUrl(Document $document): string
    {
        $signed = URL::temporarySignedRoute(
            'onlyoffice.download',
            now()->addMinutes(5),
            ['document' => $document->id],
            absolute: false
        );

        return $this->baseUrl().$signed;
    }

    protected function callbackUrl(Document $document): string
    {
        return $this->baseUrl().route('onlyoffice.callback', $document, absolute: false);
    }

    protected function baseUrl(): string
    {
        return rtrim(config('onlyoffice.callback_base_url'), '/');
    }

    protected function documentType(?string $extension): string
    {
        return match ($extension) {
            'xlsx' => 'cell',
            'pptx' => 'slide',
            default => 'word',
        };
    }
}