<?php

namespace Civi\Mailinglistsync;

use Civi\Api4\Contact;
use Civi\Api4\Group;
use Civi\Mailinglistsync\Exceptions\MailinglistException;

class GroupMailingList extends BaseMailingList {

  public const CUSTOM_GROUP_NAME = 'Group_Mailing_List';

  public const LOCATION_TYPE = 'Mailing_List_Address';

  protected const RELATED_CLASS = Group::class;
  protected const RELATED_TYPE = 'group';

  protected array $group;

  /**
   * Returns the related group.
   *
   * @return array
   */
  protected function getEntity(): array {
    return $this->group;
  }

  /**
   * Create a new GroupMailingList.
   *
   * @param string $title
   * @param string $description
   * @param string $email
   * @param string|null $sid
   *
   * @return \Civi\Mailinglistsync\GroupMailingList
   * @throws \Civi\Mailinglistsync\Exceptions\MailinglistException
   */
  public static function createGroup(
    string $title,
    string $description,
    string $email,
    string $sid = NULL
  ): self {
    try {
      $request = \Civi\Api4\Group::create()
        ->addValue('title', $title)
        ->addValue('description', $description)
        ->addValue(static::CUSTOM_GROUP_NAME . '.Email', $email)
        ->addValue('is_active', 1);

      // If the group is an AD group, add the AD SID
      if (!empty($values['sid'])) {
        $request->addValue(static::CUSTOM_GROUP_NAME . '.SID', $values['sid']);
      }
      return new self($request->execute()->getArrayCopy()['id']);
    }
    catch (\Exception $e) {
      throw new MailinglistException(
        "Could not create group\n$e",
        MailinglistException::ERROR_CODE_GROUP_CREATION_FAILED
      );
    }
  }

  /**
   * Set the related group.
   *
   * @param array $value
   */
  protected function setEntity(array $value): void {
    $this->group = $value;
  }

  /**
   * Check if the group is an AD mailing list.
   * @return bool
   */
  public function isADGroup(): bool {
    return !empty($this->group[static::CUSTOM_GROUP_NAME . '.Active_Directory_UUID']);
  }

  /**
   * Get a list of recipients indexed by email address.
   *
   * @return array List of recipients (MailListRecipient)
   * @throws \Civi\Mailinglistsync\Exceptions\MailinglistException
   */
  public function getRecipients(): array {
    try {
      $recipientData = Contact::get()
        ->addSelect('id', 'first_name', 'last_name', 'email.email', 'Active_Directory.SID')
        ->addJoin('Email AS email', 'INNER', ['id', '=', 'email.contact_id'])
        ->addJoin('GroupContact AS group_contact', 'INNER', ['id', '=', 'group_contact.contact_id'])
        ->addJoin('LocationType AS location_type', 'INNER', ['email.location_type_id', '=', 'location_type.id'])
        ->addWhere('group_contact.group_id', '=', $this->group['id'])
        ->addWhere('location_type.name', '=', static::LOCATION_TYPE)
        ->addGroupBy('id')
        ->execute()
        ->getArrayCopy();
    }
    catch (\Exception $e) {
      throw new MailinglistException(
        "Could not get recipients for group with id '{$this->group['id']}'\n$e",
        MailinglistException::ERROR_CODE_GET_RECIPIENTS_FAILED
      );
    }

    $recipients = [];
    foreach ($recipientData as $recipient) {
      $recipients[$recipient['email.email']] = new MailingListRecipient(
        contact_id: $recipient['id'],
        first_name: $recipient['first_name'],
        last_name: $recipient['last_name'],
        email: $recipient['email.email'],
        sid: $recipient['Active_Directory.SID'],
      );
    }

    return $recipients;
  }

  /**
   * Update the title of the group.
   *
   * @param string $title
   *
   * @return void
   * @throws \Civi\Mailinglistsync\Exceptions\MailinglistException
   */
  public function updateGroupTitle(string $title): void {
    $this->update(['title' => $title]);
  }

  /**
   * Update the description of the group.
   *
   * @return string
   */
  public function getGroupDescription(): string {
    return $this->group['description'];
  }

  /**
   * Update the description of the group.
   *
   * @param string $description
   *
   * @return void
   * @throws \Civi\Mailinglistsync\Exceptions\MailinglistException
   */
  public function updateGroupDescription(string $description): void {
    $this->update(['description' => $description]);
  }

}