<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2023. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Export\CSV;

use App\Libraries\MultiDB;
use App\Models\Vendor;
use App\Models\Company;
use App\Transformers\VendorContactTransformer;
use App\Transformers\VendorTransformer;
use App\Utils\Ninja;
use Illuminate\Support\Facades\App;
use League\Csv\Writer;

class VendorExport extends BaseExport
{
    private $company;

    private $vendor_transformer;

    private $contact_transformer;

    public Writer $csv;

    public string $date_key = 'created_at';

    public array $entity_keys = [
        'address1' => 'vendor.address1',
        'address2' => 'vendor.address2',
        'city' => 'vendor.city',
        'country' => 'vendor.country_id',
        'custom_value1' => 'vendor.custom_value1',
        'custom_value2' => 'vendor.custom_value2',
        'custom_value3' => 'vendor.custom_value3',
        'custom_value4' => 'vendor.custom_value4',
        'id_number' => 'vendor.id_number',
        'name' => 'vendor.name',
        'number' => 'vendor.number',
        'phone' => 'vendor.phone',
        'postal_code' => 'vendor.postal_code',
        'private_notes' => 'vendor.private_notes',
        'public_notes' => 'vendor.public_notes',
        'state' => 'vendor.state',
        'vat_number' => 'vendor.vat_number',
        'website' => 'vendor.website',
        'currency' => 'vendor.currency',
        'first_name' => 'vendor_contact.first_name',
        'last_name' => 'vendor_contact.last_name',
        'contact_phone' => 'vendor_contact.phone',
        'contact_custom_value1' => 'vendor_contact.custom_value1',
        'contact_custom_value2' => 'vendor_contact.custom_value2',
        'contact_custom_value3' => 'vendor_contact.custom_value3',
        'contact_custom_value4' => 'vendor_contact.custom_value4',
        'email' => 'vendor_contact.email',
        'status' => 'vendor.status'
    ];

    private array $decorate_keys = [
        'vendor.country_id',
        'vendor.currency',
    ];

    public array $forced_keys = [
        // 'vendor.status'
    ];

    public function __construct(Company $company, array $input)
    {
        $this->company = $company;
        $this->input = $input;
        $this->vendor_transformer = new VendorTransformer();
        $this->contact_transformer = new VendorContactTransformer();
    }

    public function run()
    {
        MultiDB::setDb($this->company->db);
        App::forgetInstance('translator');
        App::setLocale($this->company->locale());
        $t = app('translator');
        $t->replace(Ninja::transformTranslations($this->company->settings));

        //load the CSV document from a string
        $this->csv = Writer::createFromString();

        if (count($this->input['report_keys']) == 0) {
            $this->input['report_keys'] = array_values($this->entity_keys);
        }
        
        //insert the header
        $this->csv->insertOne($this->buildHeader());

        $query = Vendor::query()->with('contacts')
                                ->withTrashed()
                                ->where('company_id', $this->company->id)
                                ->where('is_deleted', 0);

        $query = $this->addDateRange($query);

        $query->cursor()
              ->each(function ($vendor) {
                  $this->csv->insertOne($this->buildRow($vendor));
              });

        return $this->csv->toString();
    }

    private function buildRow(Vendor $vendor) :array
    {
        $transformed_contact = false;

        $transformed_vendor = $this->vendor_transformer->transform($vendor);

        if ($contact = $vendor->contacts()->first()) {
            $transformed_contact = $this->contact_transformer->transform($contact);
        }

        $entity = [];

        foreach (array_values($this->input['report_keys']) as $key) {
            $parts = explode('.', $key);

            $keyval = array_search($key, $this->entity_keys);

            if (is_array($parts) && $parts[0] == 'vendor' && array_key_exists($parts[1], $transformed_vendor)) {
                $entity[$keyval] = $transformed_vendor[$parts[1]];
            } elseif (is_array($parts) && $parts[0] == 'vendor_contact' && array_key_exists($parts[1], $transformed_contact)) {
                $entity[$keyval] = $transformed_contact[$parts[1]];
            } else {
                $entity[$keyval] = '';
            }
        }

        return $this->decorateAdvancedFields($vendor, $entity);
    }

    private function decorateAdvancedFields(Vendor $vendor, array $entity) :array
    {
        if (in_array('vendor.country_id', $this->input['report_keys'])) {
            $entity['country'] = $vendor->country ? ctrans("texts.country_{$vendor->country->name}") : '';
        }

        if (in_array('vendor.currency', $this->input['report_keys'])) {
            $entity['currency'] = $vendor->currency() ? $vendor->currency()->code : $vendor->company->currency()->code;
        }

        $entity['status'] = $this->calculateStatus($vendor);

        return $entity;
    }

    private function calculateStatus($vendor)
    {
        if ($vendor->is_deleted) {
            return ctrans('texts.deleted');
        }

        if ($vendor->deleted_at) {
            return ctrans('texts.archived');
        }

        return ctrans('texts.active');
    }
}