<?php

namespace App\Commands;

use CodeIgniter\CLI\BaseCommand;
use CodeIgniter\CLI\CLI;

class SendRegistrationOpeningEmail extends BaseCommand
{
    protected $group = 'Registration';
    protected $name = 'registration:send-opening-email';
    protected $description = 'Send the parent registration opening email on the configured registration start date.';
    protected $usage = 'php spark registration:send-opening-email [--force] [--date=YYYY-MM-DD] [--email=parent@example.com] [--dry-run] [--tz=America/New_York]';

    public function run(array $params)
    {
        $tzName = (string) (CLI::getOption('tz') ?? config('School')->attendance['timezone'] ?? 'America/New_York');
        $timezone = new \DateTimeZone($tzName);
        $dateOption = CLI::getOption('date');
        $date = $dateOption
            ? new \DateTimeImmutable((string) $dateOption, $timezone)
            : new \DateTimeImmutable('today', $timezone);

        $force = CLI::getOption('force') !== null;
        $dryRun = CLI::getOption('dry-run') !== null;
        $email = CLI::getOption('email');
        $email = is_string($email) && trim($email) !== '' ? trim($email) : null;

        if ($email !== null && ! filter_var($email, FILTER_VALIDATE_EMAIL)) {
            CLI::error('Invalid --email value.');
            return;
        }

        $service = service('enrollmentRegistrationEmail');
        $summary = $service->sendForDate($date, $force, $email, $dryRun);

        foreach ($summary['messages'] as $message) {
            CLI::write($message, 'yellow');
        }

        $sentLabel = $dryRun ? 'Would send' : 'Sent';

        CLI::write(sprintf(
            'Registration opening email complete. Years: %d. Recipients: %d. %s: %d. Failed: %d. Skipped: %d%s.',
            $summary['school_years'],
            $summary['recipients'],
            $sentLabel,
            $summary['sent'],
            $summary['failed'],
            $summary['skipped'],
            $dryRun ? ' (dry run)' : ''
        ), $summary['failed'] > 0 ? 'red' : 'green');
    }
}