*

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* This function takes an array of entries and formats the 'trends' value for display.

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*

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* @since 1.8.8

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*

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* @param array|int $input Input data to format.

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*

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* @return array|string

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*/

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private function format_trends_for_display( $input ) {

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// If input is a numeric value, format and return it.

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if ( is_numeric( $input ) ) {

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return sprintf( '%s%s%%', $input >= 0 ? '+' : '', $input );

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}

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// Loop through entries and format 'trends' values.

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foreach ( $input as &$form ) {

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// Leave early if 'trends' index doesn't exist.

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if ( ! isset( $form['trends'] ) ) {

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continue;

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}

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// Add percent sign to trends and + sign if value greater than zero.

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$form['trends'] = sprintf( '%s%s%%', $form['trends'] >= 0 ? '+' : '', $form['trends'] );

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}

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return $input;

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}

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/**

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* Check if trends can be displayed for the given entries.

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*

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* @since 1.8.8

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*

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* @param array $entries The entries data.

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*

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* @return bool

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*/

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private function entries_has_trends( array $entries ): bool {

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// Return false if entries array is empty.

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if ( empty( $entries ) ) {

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return false;

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}

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// Check if at least one array item has the 'trends' key.

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foreach ( $entries as $entry ) {

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if ( isset( $entry['trends'] ) ) {

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return true;

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}

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}

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return false;

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}

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/**

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* Get icons URL.

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* Primarily used in the HTML version of the email template.

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*

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* @since 1.8.8

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*

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* @return array

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*/

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private function get_icons_url(): array {

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$base_url = WPFORMS_PLUGIN_URL . 'assets/images/email/';

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return [

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'overview' => $base_url . 'icon-overview.png',

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'upward' => $base_url . 'icon-upward.png',

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'downward' => $base_url . 'icon-downward.png',

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'notification_block' => $base_url . 'notification-block-icon.png',

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'info_block' => $base_url . 'info-block-icon.png',

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];

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}

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}

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