<?php

namespace MailPoet\API\JSON\v1;

use MailPoet\API\JSON\Endpoint as APIEndpoint;
use MailPoet\API\JSON\Error as APIError;
use MailPoet\Config\AccessControl;
use MailPoet\Listing;
use MailPoet\Models\Segment;
use MailPoet\Segments\WP;

if(!defined('ABSPATH')) exit;

class Segments extends APIEndpoint {
  public $permissions = array(
    'global' => AccessControl::PERMISSION_MANAGE_SEGMENTS
  );

  /** @var Listing\BulkActionController */
  private $bulk_action;

  /** @var Listing\Handler */
  private $listing_handler;

  function __construct(
    Listing\BulkActionController $bulk_action,
    Listing\Handler $listing_handler
  ) {
    $this->bulk_action = $bulk_action;
    $this->listing_handler = $listing_handler;
  }

  function get($data = array()) {
    $id = (isset($data['id']) ? (int)$data['id'] : false);
    $segment = Segment::findOne($id);
    if($segment === false) {
      return $this->errorResponse(array(
        APIError::NOT_FOUND => __('This list does not exist.', 'mailpoet')
      ));
    } else {
      return $this->successResponse($segment->asArray());
    }
  }

  function listing($data = array()) {
    $listing_data = $this->listing_handler->get('\MailPoet\Models\Segment', $data);

    $data = array();
    foreach($listing_data['items'] as $segment) {
      $segment->subscribers_url = admin_url(
        'admin.php?page=mailpoet-subscribers#/filter[segment='.$segment->id.']'
      );

      $data[] = $segment
        ->withSubscribersCount()
        ->asArray();
    }

    return $this->successResponse($data, array(
      'count' => $listing_data['count'],
      'filters' => $listing_data['filters'],
      'groups' => $listing_data['groups']
    ));
  }

  function save($data = array()) {
    $segment = Segment::createOrUpdate($data);
    $errors = $segment->getErrors();

    if(!empty($errors)) {
      return $this->badRequest($errors);
    } else {
      return $this->successResponse(
        Segment::findOne($segment->id)->asArray()
      );
    }
  }

  function restore($data = array()) {
    $id = (isset($data['id']) ? (int)$data['id'] : false);
    $segment = Segment::findOne($id);
    if($segment === false) {
      return $this->errorResponse(array(
        APIError::NOT_FOUND => __('This list does not exist.', 'mailpoet')
      ));
    } else {
      $segment->restore();
      return $this->successResponse(
        Segment::findOne($segment->id)->asArray(),
        array('count' => 1)
      );
    }
  }

  function trash($data = array()) {
    $id = (isset($data['id']) ? (int)$data['id'] : false);
    $segment = Segment::findOne($id);
    if($segment === false) {
      return $this->errorResponse(array(
        APIError::NOT_FOUND => __('This list does not exist.', 'mailpoet')
      ));
    } else {
      $segment->trash();
      return $this->successResponse(
        Segment::findOne($segment->id)->asArray(),
        array('count' => 1)
      );
    }
  }

  function delete($data = array()) {
    $id = (isset($data['id']) ? (int)$data['id'] : false);
    $segment = Segment::findOne($id);
    if($segment === false) {
      return $this->errorResponse(array(
        APIError::NOT_FOUND => __('This list does not exist.', 'mailpoet')
      ));
    } else {
      $segment->delete();
      return $this->successResponse(null, array('count' => 1));
    }
  }

  function duplicate($data = array()) {
    $id = (isset($data['id']) ? (int)$data['id'] : false);
    $segment = Segment::findOne($id);

    if($segment === false) {
      return $this->errorResponse(array(
        APIError::NOT_FOUND => __('This list does not exist.', 'mailpoet')
      ));
    } else {
      $data = array(
        'name' => sprintf(__('Copy of %s', 'mailpoet'), $segment->name)
      );
      $duplicate = $segment->duplicate($data);
      $errors = $duplicate->getErrors();

      if(!empty($errors)) {
        return $this->errorResponse($errors);
      } else {
        return $this->successResponse(
          Segment::findOne($duplicate->id)->asArray(),
          array('count' => 1)
        );
      }
    }
  }

  function synchronize() {
    try {
      WP::synchronizeUsers();
    } catch(\Exception $e) {
      return $this->errorResponse(array(
        $e->getCode() => $e->getMessage()
      ));
    }

    return $this->successResponse(null);
  }

  function bulkAction($data = array()) {
    try {
      $meta = $this->bulk_action->apply('\MailPoet\Models\Segment', $data);
      return $this->successResponse(null, $meta);
    } catch(\Exception $e) {
      return $this->errorResponse(array(
        $e->getCode() => $e->getMessage()
      ));
    }
  }
}