<?php

namespace Gravity_Forms\Gravity_SMTP\Logging\Endpoints;

use Gravity_Forms\Gravity_SMTP\Enums\Integration_Enum;
use Gravity_Forms\Gravity_SMTP\Enums\Status_Enum;
use Gravity_Forms\Gravity_SMTP\Models\Event_Model;
use Gravity_Forms\Gravity_SMTP\Users\Roles;
use Gravity_Forms\Gravity_SMTP\Utils\Recipient_Parser;
use Gravity_Forms\Gravity_Tools\Endpoints\Endpoint;

class Get_Paginated_Items_Endpoint extends Endpoint {

	const PARAM_PER_PAGE       = 'per_page';
	const PARAM_REQUESTED_PAGE = 'requested_page';
	const PARAM_MAX_DATE       = 'max_date';
	const PARAM_SEARCH_TERM    = 'search_term';
	const PARAM_SEARCH_TYPE    = 'search_type';
	const PARAM_SORT_BY        = 'sort_by';
	const PARAM_SORT_ORDER     = 'sort_order';
	const PARAM_FILTERS        = 'filters';

	const ACTION_NAME = 'get_paginated_items';

	protected $minimum_cap = Roles::VIEW_EMAIL_LOG;

	/**
	 * @var Event_Model
	 */
	protected $events;

	/**
	 * @var Recipient_Parser
	 */
	protected $parser;

	public function __construct( Event_Model $event_model, Recipient_Parser $parser ) {
		$this->events = $event_model;
		$this->parser = $parser;
	}

	protected function get_nonce_name() {
		return self::ACTION_NAME;
	}

	public function handle() {
		if ( ! $this->validate() ) {
			wp_send_json_error( __( 'Missing required parameters.', 'gravitysmtp' ), 400 );
		}

		$per_page       = filter_input( INPUT_POST, self::PARAM_PER_PAGE, FILTER_SANITIZE_NUMBER_INT );
		$requested_page = filter_input( INPUT_POST, self::PARAM_REQUESTED_PAGE, FILTER_SANITIZE_NUMBER_INT );
		$max_date       = filter_input( INPUT_POST, self::PARAM_MAX_DATE );
		$search_term    = filter_input( INPUT_POST, self::PARAM_SEARCH_TERM );
		$search_type    = filter_input( INPUT_POST, self::PARAM_SEARCH_TYPE );
		$sort_by        = filter_input( INPUT_POST, self::PARAM_SORT_BY );
		$sort_order     = filter_input( INPUT_POST, self::PARAM_SORT_ORDER );
		$filters        = filter_input( INPUT_POST, self::PARAM_FILTERS, FILTER_DEFAULT, FILTER_REQUIRE_ARRAY );

		if ( ! empty( $max_date ) ) {
			$max_date = htmlspecialchars( $max_date );
		}

		if ( ! empty( $search_term ) ) {
			$search_term = htmlspecialchars( $search_term );
		}

		if ( ! empty( $search_type ) ) {
			$search_type = htmlspecialchars( $search_type );
		}

		if ( ! empty( $sort_by ) ) {
			$sort_by = htmlspecialchars( $sort_by );
		}

		if ( ! empty( $sort_order ) ) {
			$sort_order = htmlspecialchars( $sort_order );
		}

		$requested_page = intval( $requested_page );
		$offset         = ( $requested_page - 1 ) * $per_page;

		if ( ! $max_date ) {
			$max_date = date( 'Y-m-d H:i:s', time() );
		}

		if ( empty( $per_page ) ) {
			$per_page = 20;
		}

		if ( ! is_array( $filters ) || empty( $filters ) ) {
			$filters = array();
		}

		$rows        = $this->events->paginate( $requested_page, $per_page, $max_date, $search_term, $search_type, $sort_by, $sort_order, $filters );
		$count       = $this->events->count( $search_term, $search_type, $filters );

		$data = array(
			'rows'      => $this->get_formatted_data_rows( $rows ),
			'total'     => $count,
			'row_count' => count( $rows ),
		);

		wp_send_json_success( $data );
	}

	private function get_formatted_data_rows( $data ) {
		$rows             = array();

		foreach ( $data as $row ) {
			$grid_actions = $this->get_grid_actions( $row );
			$extra        = strpos( $row['extra'], '{' ) === 0 ? json_decode( $row['extra'], true ) : unserialize( $row['extra'] );
			$to           = isset( $extra['to'] ) ? $extra['to'] : '';
			$to_address   = $this->parser->parse( $to )->first()->email();
			$more_count   = max( 0, $row['email_counts'] - 1 );

			$rows[] = array(
				'id'          => $row['id'],
				'subject'     => array(
					'component' => 'Button',
					'props'     => array(
						'action'        => 'view',
						'customClasses' => array( 'gravitysmtp-data-grid__subject' ),
						'label'         => $row['subject'],
						'type'          => 'unstyled',
						'data'          => array(
							'event_id' => $row['id'],
						),
					),
				),
				'status'      => array(
					'component' => 'StatusIndicator',
					'props'     => array(
						'label'  => Status_Enum::label( $row['status'] ),
						'status' => Status_Enum::indicator( $row['status'] ),
						'hasDot' => false,
					),
				),
				'to'          => array(
					'component'  => 'Box',
					'props'      => array(
						'customClasses' => array( 'gravitysmtp-activity-log-app__activity-log-table-recipient' ),
						'display'       => 'flex',
					),
					'components' => array(
						array(
							'component'  => 'Box',
							'props'      => array(
								'customClasses' => array( 'gravitysmtp-activity-log-app__activity-log-table-recipient-meta' ),
								'display'       => 'flex',
							),
							'components' => array(
								array(
									'component' => 'Gravatar',
									'props'     => array(
										'circular'      => true,
										'customClasses' => array( 'gravitysmtp-activity-log-app__activity-log-table-recipient-gravatar' ),
										'defaultImage'  => 'mp',
										'emailHash'     => hash( 'sha256', $to_address ),
										'height'        => 24,
										'width'         => 24,
									),
								),
								array(
									'component' => $more_count > 0 ? 'Text' : null,
									'props'     => array(
										'content'       => '+' . (string) $more_count,
										'customClasses' => array( 'gravitysmtp-activity-log-app__activity-log-table-recipient-more' ),
										'size'          => 'text-xxs',
									),
								),
							),
						),
						array(
							'component' => 'Text',
							'props'     => array(
								'content'       => $to_address,
								'customClasses' => array( 'gravitysmtp-activity-log-app__activity-log-table-recipient-email' ),
								'size'          => 'text-sm',
							),
						),
					),
				),
				'source'      => array(
					'component' => 'Text',
					'props'     => array(
						'content' => $row['source'],
						'size'    => 'text-sm',
					),
				),
				'integration' => array(
					'external' => true,
					'key'      => $row['service'] . '_logo',
					'props'    => array(
						'height' => 24,
						'title'  => Integration_Enum::svg_title( $row['service'] ),
						'width'  => 24,
					),
				),
				'date'        => array(
					'component' => 'Text',
					'props'     => array(
						'content' => $this->convert_dates_to_timezone( $row['date_updated'] ),
						'size'    => 'text-sm',
					),
				),
				'actions'     => $grid_actions,
			);
		}

		return $rows;
	}

	private function convert_dates_to_timezone( $date ) {
		$gmt_time   = new \DateTimeZone( 'UTC' );
		$local_time = new \DateTimeZone( wp_timezone_string() );
		$datetime   = new \DateTime( $date, $gmt_time );
		$datetime->setTimezone( $local_time );

		return $datetime->format( 'F d, Y \a\t h:ia' );
	}

	private function get_grid_actions( $row ) {
		$actions = array(
			'component'  => 'Box',
			'components' => array(
				array(
					'component' => 'Button',
					'props'     => array(
						'action'           => 'view',
						'customAttributes' => array(
							'title' => esc_html__( 'View email log', 'gravitysmtp' ),
						),
						'customClasses'    => array( 'gravitysmtp-data-grid__action' ),
						'icon'             => 'information-circle',
						'iconPrefix'       => 'gravity-component-icon',
						'spacing'          => [ 0, 2, 0, 0 ],
						'size'             => 'size-height-s',
						'type'             => 'icon-white',
						'data'             => array(
							'event_id' => $row['id'],
						),
						'disabled'         => ! current_user_can( Roles::VIEW_EMAIL_LOG_DETAILS ),
					),
				),
				array(
					'component' => 'Button',
					'props'     => array(
						'action'           => 'preview',
						'customAttributes' => array(
							'title' => esc_html__( 'View email', 'gravitysmtp' ),
						),
						'customClasses'    => array( 'gravitysmtp-data-grid__action' ),
						'icon'             => 'eye',
						'iconPrefix'       => 'gravity-admin-icon',
						'spacing'          => [ 0, 2, 0, 0 ],
						'size'             => 'size-height-s',
						'type'             => 'icon-white',
						'data'             => array(
							'event_id' => $row['id'],
						),
						'disabled'         => ! current_user_can( Roles::VIEW_EMAIL_LOG_PREVIEW ),
					),
				),
				array(
					'component' => 'Button',
					'props'     => array(
						'action'           => 'resend',
						'customAttributes' => array(
							'title' => esc_html__( 'Resend email', 'gravitysmtp' ),
						),
						'customClasses'    => array( 'gravitysmtp-data-grid__action' ),
						'icon'             => 'paper-plane',
						'iconPrefix'       => 'gravity-admin-icon',
						'spacing'          => [ 0, 2, 0, 0 ],
						'size'             => 'size-height-s',
						'type'             => 'icon-white',
						'data'             => array(
							'event_id' => $row['id'],
						),
						'disabled'         => ! current_user_can( Roles::VIEW_EMAIL_LOG_PREVIEW ) || ! $row['can_resend'],
						// @todo: Add resend permission?
					),
				),
				array(
					'component' => 'Button',
					'props'     => array(
						'action'           => 'delete',
						'customAttributes' => array(
							'title' => esc_html__( 'Delete email log', 'gravitysmtp' ),
						),
						'customClasses'    => array( 'gravitysmtp-data-grid__action' ),
						'icon'             => 'trash',
						'iconPrefix'       => 'gravity-admin-icon',
						'size'             => 'size-height-s',
						'type'             => 'icon-white',
						'data'             => array(
							'event_id' => $row['id'],
						),
						'disabled'         => ! current_user_can( Roles::DELETE_EMAIL_LOG ),
					),
				),
			),
		);

		return apply_filters( 'gravitysmtp_email_log_actions', $actions );
	}

}