<?php

namespace App\Services\Events;

use App\Services\Messaging\CustomerEmailClient;
use App\Services\Messaging\MessagingCredentialsService;

/**
 * Sends Ladill Events transactional email to attendees and speakers via the
 * customer's Ladill Bird relay when configured in Integrations.
 */
class EventMailer
{
    private ?string $lastError = null;

    public function __construct(
        private readonly MessagingCredentialsService $credentials,
        private readonly CustomerEmailClient $customerEmail,
    ) {}

    public function lastError(): ?string
    {
        return $this->lastError;
    }

    public function isConfiguredForOwner(string $ownerPublicId): bool
    {
        return $this->credentials->forOwner($ownerPublicId)->hasValidBird();
    }

    /** @deprecated Use isConfiguredForOwner() — attendee email requires per-account Bird credentials. */
    public function isConfigured(): bool
    {
        return false;
    }

    public function send(
        string $ownerPublicId,
        string $to,
        string $subject,
        string $html,
        ?string $text = null,
        ?string $replyToEmail = null,
        ?string $replyToName = null,
    ): bool {
        $this->lastError = null;

        $credential = $this->credentials->forOwner($ownerPublicId);
        if (! $credential->hasValidBird()) {
            $this->lastError = 'Connect Ladill Bird in Integrations before sending attendee email.';

            return false;
        }

        $apiKey = $credential->birdApiKey();
        if (! $apiKey) {
            $this->lastError = 'Bird credentials could not be decrypted. Reconnect Bird in Integrations.';

            return false;
        }

        $sent = $this->customerEmail->send(
            $apiKey,
            (string) $credential->bird_from_email,
            $credential->bird_from_name,
            $to,
            $subject,
            $html,
            $text,
        );

        if (! $sent) {
            $this->lastError = $this->customerEmail->lastError() ?: 'The email could not be sent.';

            return false;
        }

        return true;
    }
}