<?php
namespace Shopkeeper\VendorSalesReport\Cron;

use Shopkeeper\VendorSalesReport\Helper\Data as ConfigHelper;
use Shopkeeper\VendorSalesReport\Model\ReportGenerator;
use Shopkeeper\VendorSalesReport\Model\EmailSender;
use Psr\Log\LoggerInterface;

class GenerateMonthlyReport
{
    /**
     * @var ConfigHelper
     */
    protected $configHelper;

    /**
     * @var ReportGenerator
     */
    protected $reportGenerator;

    /**
     * @var EmailSender
     */
    protected $emailSender;

    /**
     * @var LoggerInterface
     */
    protected $logger;

    /**
     * @param ConfigHelper $configHelper
     * @param ReportGenerator $reportGenerator
     * @param EmailSender $emailSender
     * @param LoggerInterface $logger
     */
    public function __construct(
        ConfigHelper $configHelper,
        ReportGenerator $reportGenerator,
        EmailSender $emailSender,
        LoggerInterface $logger
    ) {
        $this->configHelper = $configHelper;
        $this->reportGenerator = $reportGenerator;
        $this->emailSender = $emailSender;
        $this->logger = $logger;
    }

    /**
     * Execute cron job
     *
     * @return void
     */
    public function execute()
    {
        if (!$this->configHelper->isEnabled()) {
            $this->logger->info('Vendor Sales Report: Automated report is disabled');
            return;
        }

        try {
            // Get last month's date range
            $startDate = date('Y-m-01', strtotime('first day of last month'));
            $endDate = date('Y-m-t', strtotime('last day of last month'));
            
            $month = date('F', strtotime('first day of last month'));
            $year = date('Y', strtotime('first day of last month'));

            $this->logger->info("Vendor Sales Report: Generating report for {$month} {$year}");

            // Get order statuses
            $orderStatuses = $this->configHelper->getOrderStatus();

            // Generate report data
            $data = $this->reportGenerator->generateReportData($startDate, $endDate, $orderStatuses);

            if (empty($data)) {
                $this->logger->info("Vendor Sales Report: No data found for {$month} {$year}");
                return;
            }

            // Generate CSV
            $csvContent = $this->reportGenerator->generateCsv($data);
            $filename = $this->reportGenerator->getFilename();

            // Send email
            $emailSent = $this->emailSender->sendReport($csvContent, $filename, $month, $year);

            if ($emailSent) {
                $this->logger->info("Vendor Sales Report: Successfully sent report for {$month} {$year}");
            } else {
                $this->logger->warning("Vendor Sales Report: Failed to send email for {$month} {$year}");
            }

        } catch (\Exception $e) {
            $this->logger->error('Vendor Sales Report Cron Error: ' . $e->getMessage());
        }
    }
}