<?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\Company;
use App\Models\Payment;
use App\Transformers\PaymentTransformer;
use App\Utils\Ninja;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Support\Facades\App;
use League\Csv\Writer;

class PaymentExport extends BaseExport
{
    private $entity_transformer;

    public string $date_key = 'date';

    public Writer $csv;

    public function __construct(Company $company, array $input)
    {
        $this->company = $company;
        $this->input = $input;
        $this->entity_transformer = new PaymentTransformer();
    }

    private function init(): Builder
    {

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

        if (count($this->input['report_keys']) == 0) {
            $this->input['report_keys'] = array_values($this->payment_report_keys);
        }

        $this->input['report_keys'] = array_merge($this->input['report_keys'], array_diff($this->forced_client_fields, $this->input['report_keys']));

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

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

        return $query;
    }

    public function returnJson()
    {

        $query = $this->init();

        $headerdisplay = $this->buildHeader();

        $header = collect($this->input['report_keys'])->map(function ($key, $value) use ($headerdisplay) {
            return ['identifier' => $key, 'display_value' => $headerdisplay[$value]];
        })->toArray();

        $report = $query->cursor()
                ->map(function ($resource) {
                    $row = $this->buildRow($resource);
                    return $this->processMetaData($row, $resource);
                })->toArray();
                
        return array_merge(['columns' => $header], $report);

    }

    public function run()
    {
        $query =  $this->init();
        //load the CSV document from a string
        $this->csv = Writer::createFromString();

        //insert the header
        $this->csv->insertOne($this->buildHeader());

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

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

    private function buildRow(Payment $payment) :array
    {
        $transformed_entity = $this->entity_transformer->transform($payment);

        $entity = [];

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

            if (is_array($parts) && $parts[0] == 'payment' && array_key_exists($parts[1], $transformed_entity)) {
                $entity[$key] = $transformed_entity[$parts[1]];
            } elseif (array_key_exists($key, $transformed_entity)) {
                $entity[$key] = $transformed_entity[$key];
            } else {
                $entity[$key] = $this->resolveKey($key, $payment, $this->entity_transformer);
            }

        }

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

    private function decorateAdvancedFields(Payment $payment, array $entity) :array
    {
        if (in_array('status_id', $this->input['report_keys'])) {
            $entity['status'] = $payment->stringStatus($payment->status_id);
        }

        if (in_array('vendor_id', $this->input['report_keys'])) {
            $entity['vendor'] = $payment->vendor()->exists() ? $payment->vendor->name : '';
        }

        if (in_array('project_id', $this->input['report_keys'])) {
            $entity['project'] = $payment->project()->exists() ? $payment->project->name : '';
        }

        if (in_array('currency_id', $this->input['report_keys'])) {
            $entity['currency'] = $payment->currency()->exists() ? $payment->currency->code : '';
        }

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

        if (in_array('exchange_currency_id', $this->input['report_keys'])) {
            $entity['exchange_currency'] = $payment->exchange_currency()->exists() ? $payment->exchange_currency->code : '';
        }

        if (in_array('client_id', $this->input['report_keys'])) {
            $entity['client'] = $payment->client->present()->name();
        }

        if (in_array('type_id', $this->input['report_keys'])) {
            $entity['type'] = $payment->translatedType();
        }

        if (in_array('payment.method', $this->input['report_keys'])) {
            $entity['payment.method'] = $payment->translatedType();
        }

        if (in_array('payment.status', $this->input['report_keys'])) {
            $entity['payment.status'] = $payment->stringStatus($payment->status_id);
        }

        if (in_array('gateway_type_id', $this->input['report_keys'])) {
            $entity['gateway'] = $payment->gateway_type ? $payment->gateway_type->name : 'Unknown Type';
        }

        // $entity['invoices'] = $payment->invoices()->exists() ? $payment->invoices->pluck('number')->implode(',') : '';

        return $entity;
    }
}