invoiceninja/app/Import/Transformers/Zoho/InvoiceTransformer.php

<?php
/**
 * client Ninja (https://clientninja.com).
 *
 * @link https://github.com/clientninja/clientninja source repository
 *
 * @copyright Copyright (c) 2021. client Ninja LLC (https://clientninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Import\Transformers\Zoho;

use App\Import\ImportException;
use App\Import\Transformers\BaseTransformer;
use App\Models\Invoice;

/**
 * Class InvoiceTransformer.
 */
class InvoiceTransformer extends BaseTransformer {
	/**
	 * @param $line_items_data
	 *
	 * @return bool|array
	 */
	public function transform( $line_items_data ) {
		$invoice_data = reset( $line_items_data );

		if ( $this->hasInvoice( $invoice_data['Invoice Number'] ) ) {
			throw new ImportException( 'Invoice number already exists' );
		}

		$invoiceStatusMap = [
			'sent'  => Invoice::STATUS_SENT,
			'draft' => Invoice::STATUS_DRAFT,
		];

		$transformed = [
			'company_id'   => $this->maps['company']->id,
			'client_id'    => $this->getClient( $this->getString( $invoice_data, 'Customer ID' ), null ),
			'number'       => $this->getString( $invoice_data, 'Invoice Number' ),
			'date'         => isset( $invoice_data['Invoice Date'] ) ? date( 'Y-m-d', strtotime( $invoice_data['Invoice Date'] ) ) : null,
			'due_date'     => isset( $invoice_data['Due Date'] ) ? date( 'Y-m-d', strtotime( $invoice_data['Due Date'] ) ) : null,
			'po_number'    => $this->getString( $invoice_data, 'PurchaseOrder' ),
			'public_notes' => $this->getString( $invoice_data, 'Notes' ),
			'currency_id'  => $this->getCurrencyByCode( $invoice_data, 'Currency' ),
			'amount'       => $this->getFloat( $invoice_data, 'Total' ),
			'balance'      => $this->getFloat( $invoice_data, 'Balance' ),
			'status_id'    => $invoiceStatusMap[ $status =
					strtolower( $this->getString( $invoice_data, 'Invoice Status' ) ) ] ?? Invoice::STATUS_SENT,
			'viewed'       => $status === 'viewed',
		];

		$line_items = [];
		foreach ( $line_items_data as $record ) {
			$line_items[] = [
				'product_key'        => $this->getString( $record, 'Item Name' ),
				'notes'              => $this->getString( $record, 'Item Description' ),
				'cost'               => $this->getFloat( $record, 'Item Price' ),
				'quantity'           => $this->getFloat( $record, 'Quantity' ),
				'discount'           => $this->getString( $record, 'Discount Amount' ),
				'is_amount_discount' => true,
			];
		}
		$transformed['line_items'] = $line_items;

		if ( $transformed['balance'] < $transformed['amount'] ) {
			$transformed['payments'] = [[
				'date'   => isset( $invoice_data['Last Payment Date'] ) ? date( 'Y-m-d', strtotime( $invoice_data['Invoice Date'] ) ) : date( 'Y-m-d' ),
				'amount' => $transformed['amount'] - $transformed['balance'],
			]];
		}

		return $transformed;
	}
}