s.
	 * @return void
	 */
	public function image( $url, $width = 0, $height = 0, $alt = '', $attr = [] ) {
		$atts           = $attr;
		$atts['border'] = '0';

		if ( ! isset( $atts['src'] ) ) {
			$atts['src'] = $url;
		}

		if ( ! isset( $atts['width'] ) && $width ) {
			$atts['width'] = $width;
		}

		if ( ! isset( $atts['height'] ) && $height ) {
			$atts['height'] = $height;
		}

		if ( ! isset( $atts['alt'] ) ) {
			$atts['alt'] = $alt;
		}

		if ( ! isset( $atts['style'] ) ) {
			$atts['style'] = 'border: 0; outline: none; text-decoration: none; display: inline-block;';
		}

		if ( substr( $atts['src'], 0, 4 ) !== 'http' && substr( $atts['src'], 0, 3 ) !== '###' ) {
			$atts['src'] = $this->assets_url . 'img/' . $atts['src'];
		}

		$atts = $this->do_filter( 'analytics/email_report_image_atts', $atts, $url, $width, $height, $alt, $attr );

		$attributes = '';
		foreach ( $atts as $name => $value ) {
			if ( ! empty( $value ) ) {
				$value       = ( 'src' === $name ) ? esc_url_raw( $value ) : esc_attr( $value );
				$attributes .= ' ' . $name . '="' . $value . '"';
			}
		}

		$image = "<img $attributes>";
		$image = $this->do_filter( 'analytics/email_report_image_html', $image, $url, $width, $height, $alt, $attr );

		echo $image; // phpcs:ignore
	}

	/**
	 * Gets template path.
	 *
	 * @param string $template_name    Template name.
	 * @param bool   $return_full_path Return the full path or not.
	 * @return string
	 */
	public function locate_template( $template_name, $return_full_path = true ) {
		$default_paths  = [ $this->views_path ];
		$template_paths = $this->do_filter( 'analytics/email_report_template_paths', $default_paths );

		$paths        = array_reverse( $template_paths );
		$located      = '';
		$path_partial = '';
		foreach ( $paths as $path ) {
			if ( file_exists( $full_path = trailingslashit( $path ) . $template_name . '.php' ) ) { // phpcs:ignore
				$located      = $full_path;
				$path_partial = $path;
				break;
			}
		}

		return $return_full_path ? $located : $path_partial;
	}

	/**
	 * Load all graph data into memory.
	 *
	 * @return void
	 */
	private function load_graph_data() {
		$period = self::get_period_from_frequency();
		$stats  = Stats::get();
		$stats->set_date_range( "-{$period} days" );
		$this->graph_data = (array) $stats->get_analytics_summary_graph();
	}

	/**
	 * Get data points for graph.
	 *
	 * @param string $chart Chart to get data for.
	 * @return array
	 */
	public function get_graph_data( $chart ) {
		if ( empty( $this->graph_data ) ) {
			$this->load_graph_data();
		}

		$data  = [];
		$group = 'merged';
		$prop  = $chart;
		if ( 'traffic' === $chart ) {
			$group = 'traffic';
			$prop  = 'pageviews';
		}

		if ( empty( $this->graph_data[ $group ] ) ) {
			return $data;
		}

		foreach ( (array) $this->graph_data[ $group ] as $range_data ) {
			$range_data = (array) $range_data;
			if ( isset( $range_data[ $prop ] ) ) {
				$data[] = $range_data[ $prop ];
			}
		}

		return $data;
	}

	/**
	 * Charts API sign request.
	 *
	 * @param string $query Query.
	 * @param string $code  Code.
	 * @return string
	 */
	private function charts_api_sign( $query, $code ) {
		return hash_hmac( 'sha256', $query, $code );
	}

	/**
	 * Generate URL for the Charts API image.
	 *
	 * @param  array $graph_data Graph data points.
	 * @param  int   $width      Image height.
	 * @param  int   $height     Image width.
	 *
	 * @return string
	 */
	private function charts_api_url( $graph_data, $width = 192, $height = 102 ) {
		$params = [
			'chco' => '80ace7',
			'chds' => 'a',
			'chf'  => 'bg,s,f7f9fb',
			'chls' => 4,
			'chm'  => 'B,e2eeff,0,0,0',
			'chs'  => "{$width}x{$height}",
			'cht'  => 'ls',
			'chd'  => 'a:' . join( ',', $graph_data ),
			'icac' => $this->charts_account,
		];

		$query_string = urldecode( http_build_query( $params ) );
		$signature    = $this->charts_api_sign( $query_string, $this->charts_key );

		return 'https://charts.rankmath.com/chart?' . $query_string . '&ichm=' . $signature;
	}

	/**
	 * Check if fields should be hidden.
	 *
	 * @return bool
	 */
	public static function are_fields_hidden() {
		return apply_filters( 'rank_math/analytics/hide_email_report_options', false );
	}
}