<?php

namespace Drupal\symfony_mailer;

use Symfony\Component\Mime\Header\Headers;

/**
 * Trait that implements BaseEmailInterface, writing to a Symfony Email object.
 */
trait BaseEmailTrait {

  /**
   * The inner Symfony Email object.
   *
   * @var \Symfony\Component\Mime\Email
   */
  protected $inner;

  /**
   * The addresses.
   *
   * @var array
   */
  protected $addresses = [
    'from' => [],
    'reply-to' => [],
    'to' => [],
    'cc' => [],
    'bcc' => [],
  ];

  /**
   * The sender.
   *
   * @var \Drupal\symfony_mailer\AddressInterface
   */
  protected $sender;

  /**
   * The attachments.
   *
   * @var \Symfony\Component\Mime\Part\DataPart[]
   */
  protected $attachments = [];

  /**
   * {@inheritdoc}
   */
  public function setSender($address) {
    $this->sender = Address::create($address);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getSender(): ?AddressInterface {
    return $this->sender;
  }

  /**
   * {@inheritdoc}
   *
   * The $legacy parameter is @internal and may be removed at any time.
   */
  public function setAddress(string $name, $addresses, bool $legacy = FALSE) {
    $name = strtolower($name);
    assert(isset($this->addresses[$name]));
    // Allow late setting of the to address for legacy emails. The langcode
    // will not be updated, however that is a limitation of the legacy mail
    // system.
    if (!$legacy && $name == 'to') {
      $this->valid(self::PHASE_BUILD, self::PHASE_INIT);
      if ($this->phase == self::PHASE_BUILD) {
        @trigger_error('Calling \Drupal\symfony_mailer\Email::setTo() in the build phase is deprecated in symfony_mailer:1.6.0 and will fail in symfony_mailer:2.0.0. Call it in the initialisation phase instead. See https://www.drupal.org/node/3501754', E_USER_DEPRECATED);
      }
    }

    // Either erasing all addresses or updating them for the specified header.
    $this->addresses[$name] = is_null($addresses) ? [] : Address::convert($addresses);

    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getAddress(string $name): array {
    $name = strtolower($name);
    assert(isset($this->addresses[$name]));
    return $this->addresses[$name];
  }

  /**
   * {@inheritdoc}
   */
  public function setFrom($addresses) {
    return $this->setAddress('from', $addresses);
  }

  /**
   * {@inheritdoc}
   */
  public function getFrom(): array {
    return $this->addresses['from'];
  }

  /**
   * {@inheritdoc}
   */
  public function setReplyTo($addresses) {
    return $this->setAddress('reply-to', $addresses);
  }

  /**
   * {@inheritdoc}
   */
  public function getReplyTo(): array {
    return $this->addresses['reply-to'];
  }

  /**
   * {@inheritdoc}
   */
  public function setTo($addresses) {
    return $this->setAddress('to', $addresses);
  }

  /**
   * {@inheritdoc}
   */
  public function getTo(): array {
    return $this->addresses['to'];
  }

  /**
   * {@inheritdoc}
   */
  public function setCc($addresses) {
    return $this->setAddress('cc', $addresses);
  }

  /**
   * {@inheritdoc}
   */
  public function getCc(): array {
    return $this->addresses['cc'];
  }

  /**
   * {@inheritdoc}
   */
  public function setBcc($addresses) {
    return $this->setAddress('bcc', $addresses);
  }

  /**
   * {@inheritdoc}
   */
  public function getBcc(): array {
    return $this->addresses['bcc'];
  }

  /**
   * {@inheritdoc}
   */
  public function setPriority(int $priority) {
    $this->inner->priority($priority);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getPriority(): int {
    return $this->inner->getPriority();
  }

  /**
   * {@inheritdoc}
   */
  public function setTextBody(string $body) {
    $this->inner->text($body);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getTextBody(): ?string {
    return $this->inner->getTextBody();
  }

  /**
   * {@inheritdoc}
   */
  public function setHtmlBody(?string $body) {
    $this->valid(self::PHASE_POST_RENDER, self::PHASE_POST_RENDER);
    $this->inner->html($body);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getHtmlBody(): ?string {
    $this->valid(self::PHASE_POST_SEND, self::PHASE_POST_RENDER);
    return $this->inner->getHtmlBody();
  }

  /**
   * {@inheritdoc}
   */
  public function attachFromPath(string $path, ?string $name = NULL, ?string $mimeType = NULL) {
    return $this->attach(Attachment::fromPath($path, $name, $mimeType));
  }

  /**
   * {@inheritdoc}
   */
  public function attachNoPath(string $body, ?string $name = NULL, ?string $mimeType = NULL) {
    @trigger_error('\Drupal\symfony_mailer\Email::attachNoPath() is deprecated in symfony_mailer:1.6.0 and is removed from symfony_mailer:2.0.0. Use ::attach() instead. See https://www.drupal.org/node/3476132', E_USER_DEPRECATED);
    return $this->attach(Attachment::fromData($body, $name, $mimeType));
  }

  /**
   * {@inheritdoc}
   */
  public function attach(AttachmentInterface $attachment): static {
    $key = $attachment->getUri() ?: $attachment->getContentId();
    $this->attachments[$key] = $attachment;
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getAttachments(): array {
    return $this->attachments;
  }

  /**
   * {@inheritdoc}
   */
  public function removeAttachment(string $key): static {
    unset($this->attachments[$key]);
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getHeaders(): Headers {
    return $this->inner->getHeaders();
  }

  /**
   * {@inheritdoc}
   */
  public function addTextHeader(string $name, string $value) {
    $this->getHeaders()->addTextHeader($name, $value);
    return $this;
  }

}