<?php

// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

if (!class_exists('ReduxFramework_spacing')) {
    class ReduxFramework_spacing {

        /**
         * Field Constructor.
         *
         * Required - must call the parent constructor, then assign field and value to vars, and obviously call the render field function
         *
         * @since ReduxFramework 1.0.0
         */
        function __construct($field = array(), $value = '', $parent) {
            $this->parent   = $parent;
            $this->field    = $field;
            $this->value    = $value;
        }

        /**
         * Field Render Function.
         *
         * Takes the vars and outputs the HTML for the field in the settings
         *
         * @since ReduxFramework 1.0.0
         */
        function render() {
            /*
             * So, in_array() wasn't doing it's job for checking a passed array for a proper value.
             * It's wonky.  It only wants to check the keys against our array of acceptable values, and not the key's
             * value.  So we'll use this instead.  Fortunately, a single no array value can be passed and it won't
             * take a dump.
             */

            // No errors please
            // Set field values
            $defaults = array(
                'units'             => '',
                'mode'              => 'padding',
                'top'               => true,
                'bottom'            => true,
                'all'               => false,
                'left'              => true,
                'right'             => true,
                'units_extended'    => false,
                'display_units'     => true
            );

            $this->field = wp_parse_args($this->field, $defaults);

            // Set default values
            $defaults = array(
                'top'       => '',
                'right'     => '',
                'bottom'    => '',
                'left'      => '',
                'units'     => 'px'
            );

            $this->value = wp_parse_args($this->value, $defaults);

            /*
             * Acceptable values checks.  If the passed variable doesn't pass muster, we unset them
             * and reset them with default values to avoid errors.
             */

            // If units field has a value but is not an acceptable value, unset the variable
            if (isset($this->field['units']) && !Redux_Helpers::array_in_array($this->field['units'], array('', false, '%', 'in', 'cm', 'mm', 'em', 'rem', 'ex', 'pt', 'pc', 'px'))) {
                unset($this->field['units']);
            }

            //if there is a default unit value  but is not an accepted value, unset the variable
            if (isset($this->value['units']) && !Redux_Helpers::array_in_array($this->value['units'], array('', '%', 'in', 'cm', 'mm', 'em', 'rem', 'ex', 'pt', 'pc', 'px'))) {
                unset($this->value['units']);
            }

//            if ($this->field['mode'] == "absolute") {
//                $this->field['units'] = "";
//                $this->value['units'] = "";
//            }

            if ($this->field['units'] == false) {
                $this->value == "";
            }

            if (isset($this->field['mode']) && !in_array($this->field['mode'], array('margin', 'padding'))) {
                if ($this->field['mode'] == "absolute") {
                    $absolute = true;
                }
                $this->field['mode'] = "";
            }

            $value = array(
                'top'       => isset($this->value[$this->field['mode'] . '-top']) ? filter_var($this->value[$this->field['mode'] . '-top'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION) : filter_var($this->value['top'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION),
                'right'     => isset($this->value[$this->field['mode'] . '-right']) ? filter_var($this->value[$this->field['mode'] . '-right'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION) : filter_var($this->value['right'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION),
                'bottom'    => isset($this->value[$this->field['mode'] . '-bottom']) ? filter_var($this->value[$this->field['mode'] . '-bottom'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION) : filter_var($this->value['bottom'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION),
                'left'      => isset($this->value[$this->field['mode'] . '-left']) ? filter_var($this->value[$this->field['mode'] . '-left'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION) : filter_var($this->value['left'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION)
            );

            // if field units has a value and is NOT an array, then evaluate as needed.
            if (isset($this->field['units']) && !is_array($this->field['units'])) {

                //if units fields has a value and is not empty but units value does not then make units value the field value
                if (isset($this->field['units']) && $this->field['units'] != "" && !isset($this->value['units']) || $this->field['units'] == false) {
                    $this->value['units'] = $this->field['units'];

                    // If units field does NOT have a value and units value does NOT have a value, set both to blank (default?)
                } else if (!isset($this->field['units']) && !isset($this->value['units'])) {
                    $this->field['units'] = 'px';
                    $this->value['units'] = 'px';

                    // If units field has NO value but units value does, then set unit field to value field
                } else if (!isset($this->field['units']) && isset($this->value['units'])) { // If Value is defined
                    $this->field['units'] = $this->value['units'];

                    // if unit value is set and unit value doesn't equal unit field (coz who knows why)
                    // then set unit value to unit field
                } elseif (isset($this->value['units']) && $this->value['units'] !== $this->field['units']) {
                    $this->value['units'] = $this->field['units'];
                }

                // do stuff based on unit field NOT set as an array
            } elseif (isset($this->field['units']) && is_array($this->field['units'])) {
                // nothing to do here, but I'm leaving the construct just in case I have to debug this again.
            }

            if (isset($this->field['units'])) {
                $value['units'] = $this->value['units'];
            }

            $this->value = $value;

            if (!empty($this->field['mode'])) {
                $this->field['mode'] = $this->field['mode'] . "-";
            }


            $defaults = array(
                'top'       => '',
                'right'     => '',
                'bottom'    => '',
                'left'      => '',
                'units'     => ''
            );

            $this->value = wp_parse_args($this->value, $defaults);

            echo '<input type="hidden" class="field-units" value="' . $this->value['units'] . '">';

            if (isset($this->field['all']) && $this->field['all'] == true) {
                echo '<div class="field-spacing-input input-prepend"><span class="add-on"><i class="el-icon-fullscreen icon-large"></i></span><input type="text" class="redux-spacing-all redux-spacing-input mini' . $this->field['class'] . '" placeholder="' . __('All', 'redux-framework') . '" rel="' . $this->field['id'] . '-all" value="' . $this->value['top'] . '"></div>';
            }

            if ($this->field['top'] === true){
                echo '<input type="hidden" class="redux-spacing-value" id="' . $this->field['id'] . '-top" name="' . $this->field['name'] . '[' . $this->field['mode'] . 'top]' . $this->field['name_suffix'] . '" value="' . $this->value['top'] . (!empty($this->value['top']) ? $this->value['units'] : '') . '">';
            }

            if ($this->field['right'] === true){
                echo '<input type="hidden" class="redux-spacing-value" id="' . $this->field['id'] . '-right" name="' . $this->field['name'] . '[' . $this->field['mode'] . 'right]' . $this->field['name_suffix'] . '" value="' . $this->value['right'] . (!empty($this->value['right']) ? $this->value['units'] : '') . '">';
            }

            if ($this->field['bottom'] === true){
                echo '<input type="hidden" class="redux-spacing-value" id="' . $this->field['id'] . '-bottom" name="' . $this->field['name'] . '[' . $this->field['mode'] . 'bottom]' . $this->field['name_suffix'] . '" value="' . $this->value['bottom'] . (!empty($this->value['bottom']) ? $this->value['units'] : '') . '">';
            }

            if ($this->field['left'] === true){
                echo '<input type="hidden" class="redux-spacing-value" id="' . $this->field['id'] . '-left" name="' . $this->field['name'] . '[' . $this->field['mode'] . 'left]' . $this->field['name_suffix'] . '" value="' . $this->value['left'] . (!empty($this->value['left']) ? $this->value['units'] : '') . '">';
            }

            if (!isset($this->field['all']) || $this->field['all'] !== true) {
                /**
                  Top
                 * */
                if ($this->field['top'] === true){
                    echo '<div class="field-spacing-input input-prepend"><span class="add-on"><i class="el-icon-arrow-up icon-large"></i></span><input type="text" class="redux-spacing-top redux-spacing-input mini' . $this->field['class'] . '" placeholder="' . __('Top', 'redux-framework') . '" rel="' . $this->field['id'] . '-top" value="' . $this->value['top'] . '"></div>';
                }

                /**
                  Right
                 * */
                if ($this->field['right'] === true){
                    echo '<div class="field-spacing-input input-prepend"><span class="add-on"><i class="el-icon-arrow-right icon-large"></i></span><input type="text" class="redux-spacing-right redux-spacing-input mini' . $this->field['class'] . '" placeholder="' . __('Right', 'redux-framework') . '" rel="' . $this->field['id'] . '-right" value="' . $this->value['right'] . '"></div>';
                }

                /**
                  Bottom
                 * */
                if ($this->field['bottom'] === true){
                    echo '<div class="field-spacing-input input-prepend"><span class="add-on"><i class="el-icon-arrow-down icon-large"></i></span><input type="text" class="redux-spacing-bottom redux-spacing-input mini' . $this->field['class'] . '" placeholder="' . __('Bottom', 'redux-framework') . '" rel="' . $this->field['id'] . '-bottom" value="' . $this->value['bottom'] . '"></div>';
                }

                /**
                  Left
                 * */
                if ($this->field['left'] === true){
                    echo '<div class="field-spacing-input input-prepend"><span class="add-on"><i class="el-icon-arrow-left icon-large"></i></span><input type="text" class="redux-spacing-left redux-spacing-input mini' . $this->field['class'] . '" placeholder="' . __('Left', 'redux-framework') . '" rel="' . $this->field['id'] . '-left" value="' . $this->value['left'] . '"></div>';
                }
            }

            /**
              Units
             * */
            if ($this->field['units'] !== false && is_array($this->field['units']) /* && !isset($absolute) */ && $this->field['display_units'] == true){

                echo '<div class="select_wrapper spacing-units" original-title="' . __('Units', 'redux-framework') . '">';
                echo '<select data-placeholder="' . __('Units', 'redux-framework') . '" class="redux-spacing redux-spacing-units select' . $this->field['class'] . '" original-title="' . __('Units', 'redux-framework') . '" name="' . $this->field['name'] . '[units]' . $this->field['name_suffix'] . '" id="' . $this->field['id'] . '_units">';

                if ($this->field['units_extended']) {
                    $testUnits = array('px', 'em', 'rem', '%', 'in', 'cm', 'mm', 'ex', 'pt', 'pc');
                } else {
                    $testUnits = array('px', 'em', 'pt', 'rem', '%');
                }

                if ($this->field['units'] != "" || is_array($this->field['units'])) {
                    $testUnits = $this->field['units'];
                }

                echo '<option></option>';

                if (in_array($this->field['units'], $testUnits)) {
                    echo '<option value="' . $this->field['units'] . '" selected="selected">' . $this->field['units'] . '</option>';
                } else {
                    foreach ($testUnits as $aUnit) {
                        echo '<option value="' . $aUnit . '" ' . selected($this->value['units'], $aUnit, false) . '>' . $aUnit . '</option>';
                    }
                }
                echo '</select></div>';

            }
        }

        /**
         * Enqueue Function.
         *
         * If this field requires any scripts, or css define this function and register/enqueue the scripts/css
         *
         * @since ReduxFramework 1.0.0
         */
        function enqueue() {

            wp_enqueue_script(
                'redux-field-spacing-js',
                ReduxFramework::$_url . 'inc/fields/spacing/field_spacing' . Redux_Functions::isMin() . '.js',
                array('jquery'),
                time(),
                true
            );

            wp_enqueue_style(
                'redux-field-spacing-css',
                ReduxFramework::$_url . 'inc/fields/spacing/field_spacing.css',
                time(),
                true
            );
        }   //function

        public function output() {

            if (!isset($this->field['mode'])) {
                $this->field['mode'] = "padding";
            }

            if (isset($this->field['mode']) && !in_array($this->field['mode'], array('padding', 'absolute', 'margin'))) {
                $this->field['mode'] = "";
            }

            $mode = ( $this->field['mode'] != "absolute" ) ? $this->field['mode'] : "";
            $units = isset($this->value['units']) ? $this->value['units'] : "";
            $style = '';

            if (!empty($mode)) {
                foreach ($this->value as $key => $value) {
                    if ($key == "units") {
                        continue;
                    }
                    if (empty($value)) {
                        $value = '0' ;
                    }
                    $style .= $key . ':' . $value . ';';
                }
            } else {
                $this->value['top'] = isset($this->value['top']) ? $this->value['top'] : 0;
                $this->value['bottom'] = isset($this->value['bottom']) ? $this->value['bottom'] : 0;
                $this->value['left'] = isset($this->value['left']) ? $this->value['left'] : 0;
                $this->value['right'] = isset($this->value['right']) ? $this->value['right'] : 0;
                
                $cleanValue = array(
                    'top'       => isset($this->value[$mode . '-top']) ? filter_var($this->value[$mode . '-top'], FILTER_SANITIZE_NUMBER_INT) : filter_var($this->value['top'], FILTER_SANITIZE_NUMBER_INT),
                    'right'     => isset($this->value[$mode . '-right']) ? filter_var($this->value[$mode . '-right'], FILTER_SANITIZE_NUMBER_INT) : filter_var($this->value['right'], FILTER_SANITIZE_NUMBER_INT),
                    'bottom'    => isset($this->value[$mode . '-bottom']) ? filter_var($this->value[$mode . '-bottom'], FILTER_SANITIZE_NUMBER_INT) : filter_var($this->value['bottom'], FILTER_SANITIZE_NUMBER_INT),
                    'left'      => isset($this->value[$mode . '-left']) ? filter_var($this->value[$mode . '-left'], FILTER_SANITIZE_NUMBER_INT) : filter_var($this->value['left'], FILTER_SANITIZE_NUMBER_INT)
                );
                
                if ( isset($this->field['all']) && true == $this->field['all']) {
                    $style .= $mode . 'top:' . $cleanValue['top'] . $units . ';';
                    $style .= $mode . 'bottom:' . $cleanValue['top'] . $units . ';';
                    $style .= $mode . 'right:' . $cleanValue['top'] . $units . ';';
                    $style .= $mode . 'left:' . $cleanValue['top'] . $units . ';';
                } else {
                    if (true == $this->field['top']) {
                        $style .= $mode . 'top:' . $cleanValue['top'] . $units . ';';
                    }
                    
                    if (true == $this->field['bottom']) {
                        $style .= $mode . 'bottom:' . $cleanValue['bottom'] . $units . ';';
                    }                    
                    
                    if (true == $this->field['left']) {
                        $style .= $mode . 'left:' . $cleanValue['left'] . $units . ';';
                    }                    
                    
                    if (true == $this->field['right']) {
                        $style .= $mode . 'right:' . $cleanValue['right'] . $units . ';';
                    }                    
                }
            }

            if (!empty($style)) {

                if (!empty($this->field['output']) && is_array($this->field['output'])) {
                    $keys = implode(",", $this->field['output']);
                    $this->parent->outputCSS .= $keys . "{" . $style . '}';
                }

                if (!empty($this->field['compiler']) && is_array($this->field['compiler'])) {
                    $keys = implode(",", $this->field['compiler']);
                    $this->parent->compilerCSS .= $keys . "{" . $style . '}';
                }
            }
        }
    }
}