<?php

    /**
     * Redux Framework is free software: you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation, either version 2 of the License, or
     * any later version.
     * Redux Framework is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     * GNU General Public License for more details.
     * You should have received a copy of the GNU General Public License
     * along with Redux Framework. If not, see <http://www.gnu.org/licenses/>.
     *
     * @package     ReduxFramework
     * @subpackage  Field_Slider
     * @author      Kevin Provance (kprovance)
     * @version     2.0.0
     */

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

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

            /**
             * Field Constructor.
             * Required - must call the parent constructor, then assign field and value to vars, and obviously call the render field function
             *
             * @since ReduxFramework 3.1.8
             */
            private $display_none = 0;
            private $display_label = 1;
            private $display_text = 2;
            private $display_select = 3;

            function __construct( $field = array(), $value = '', $parent ) {

                //parent::__construct( $parent->sections, $parent->args );
                $this->parent = $parent;
                $this->field  = $field;
                $this->value  = $value;

                // Set defaults
                $defaults = array(
                    'handles'       => 1,
                    'resolution'    => 1,
                    'display_value' => 'text',
                    'float_mark'    => '.',
                );

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

                // Sanitize float mark
                switch ( $this->field['float_mark'] ) {
                    case ',':
                    case '.':
                        break;
                    default:
                        $this->field['float_mark'] = '.';
                        break;
                }

                // Sanitize resolution value
                $this->field['resolution'] = $this->cleanVal( $this->field['resolution'] );

                // Sanitize handle value
                switch ( $this->field['handles'] ) {
                    case 0:
                    case 1:
                        $this->field['handles'] = 1;
                        break;
                    default:
                        $this->field['handles'] = 2;
                        break;
                }

                // Sanitize display value
                switch ( $this->field['display_value'] ) {
                    case 'label':
                        $this->field['display_value'] = $this->display_label;
                        break;
                    case 'text':
                    default:
                        $this->field['display_value'] = $this->display_text;
                        break;
                    case 'select':
                        $this->field['display_value'] = $this->display_select;
                        break;
                    case 'none':
                        $this->field['display_value'] = $this->display_none;
                        break;
                }
            }

            private function cleanVal( $var ) {
                if ( is_float( $var ) ) {
                    $cleanVar = floatval( $var );
                } else {
                    $cleanVar = intval( $var );
                }

                return $cleanVar;
            }

            private function cleanDefault( $val ) {
                if ( empty( $val ) && ! empty( $this->field['default'] ) && $this->cleanVal( $this->field['min'] ) >= 1 ) {
                    $val = $this->cleanVal( $this->field['default'] );
                }

                if ( empty( $val ) && $this->cleanVal( $this->field['min'] ) >= 1 ) {
                    $val = $this->cleanVal( $this->field['min'] );
                }

                if ( empty( $val ) ) {
                    $val = 0;
                }

                // Extra Validation
                if ( $val < $this->field['min'] ) {
                    $val = $this->cleanVal( $this->field['min'] );
                } else if ( $val > $this->field['max'] ) {
                    $val = $this->cleanVal( $this->field['max'] );
                }

                return $val;
            }

            private function cleanDefaultArray( $val ) {
                $one = $this->value[1];
                $two = $this->value[2];

                if ( empty( $one ) && ! empty( $this->field['default'][1] ) && $this->cleanVal( $this->field['min'] ) >= 1 ) {
                    $one = $this->cleanVal( $this->field['default'][1] );
                }

                if ( empty( $one ) && $this->cleanVal( $this->field['min'] ) >= 1 ) {
                    $one = $this->cleanVal( $this->field['min'] );
                }

                if ( empty( $one ) ) {
                    $one = 0;
                }

                if ( empty( $two ) && ! empty( $this->field['default'][2] ) && $this->cleanVal( $this->field['min'] ) >= 1 ) {
                    $two = $this->cleanVal( $this->field['default'][1] + 1 );
                }

                if ( empty( $two ) && $this->cleanVal( $this->field['min'] ) >= 1 ) {
                    $two = $this->cleanVal( $this->field['default'][1] + 1 );
                }

                if ( empty( $two ) ) {
                    $two = $this->field['default'][1] + 1;
                }

                $val[0] = $one;
                $val[1] = $two;

                return $val;
            }


            /**
             * Clean the field data to the fields defaults given the parameters.
             *
             * @since Redux_Framework 3.1.8
             */
            function clean() {

                // Set min to 0 if no value is set.
                $this->field['min'] = empty( $this->field['min'] ) ? 0 : $this->cleanVal( $this->field['min'] );

                // Set max to min + 1 if empty.
                $this->field['max'] = empty( $this->field['max'] ) ? $this->field['min'] + 1 : $this->cleanVal( $this->field['max'] );

                // Set step to 1 if step is empty ot step > max.
                $this->field['step'] = empty( $this->field['step'] ) || $this->field['step'] > $this->field['max'] ? 1 : $this->cleanVal( $this->field['step'] );

                if ( 2 == $this->field['handles'] ) {
                    if ( ! is_array( $this->value ) ) {
                        $this->value[1] = 0;
                        $this->value[2] = 1;
                    }
                    $this->value = $this->cleanDefaultArray( $this->value );
                } else {
                    if ( is_array( $this->value ) ) {
                        $this->value = 0;
                    }
                    $this->value = $this->cleanDefault( $this->value );
                }

                // More dummy checks
                //if ( ! is_array( $this->field['default'] ) && 2 == $this->field['handles'] ) {
                if ( ! is_array( $this->value ) && 2 == $this->field['handles'] ) {
                    $this->value[0] = $this->field['min'];
                    $this->value[1] = $this->field['min'] + 1;
                }

                //if ( is_array( $this->field['default'] ) && 1 == $this->field['handles'] ) {
                if ( is_array( $this->value ) && 1 == $this->field['handles'] ) {
                    $this->value = $this->field['min'];
                }

            }

            /**
             * Enqueue Function.
             * If this field requires any scripts, or css define this function and register/enqueue the scripts/css
             *
             * @since ReduxFramework 3.1.8
             */
            function enqueue() {

                $min = Redux_Functions::isMin();

                wp_enqueue_style(
                    'nouislider-css',
                    ReduxFramework::$_url . 'inc/fields/slider/vendor/nouislider/jquery.nouislider.css',
                    array(),
                    filemtime( ReduxFramework::$_dir . 'inc/fields/slider/vendor/nouislider/jquery.nouislider.css' ),
                    'all'
                );

                wp_register_script(
                    'nouislider-js',
                    ReduxFramework::$_url . 'inc/fields/slider/vendor/nouislider/jquery.nouislider' . $min . '.js',
                    array( 'jquery' ),
                    '5.0.0',
                    true
                );

                wp_enqueue_script(
                    'redux-field-slider-js',
                    ReduxFramework::$_url . 'inc/fields/slider/field_slider' . $min . '.js',
                    array( 'jquery', 'nouislider-js', 'redux-js', 'select2-js' ),
                    time(),
                    true
                );

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

            //function

            /**
             * Field Render Function.
             * Takes the vars and outputs the HTML for the field in the settings
             *
             * @since ReduxFramework 0.0.4
             */
            function render() {

                $this->clean();

                $fieldID   = $this->field['id'];
                $fieldName = $this->field['name'] . $this->field['name_suffix'];
                //$fieldName = $this->parent->args['opt_name'] . '[' . $this->field['id'] . ']';

                // Set handle number variable.
                $twoHandles = false;
                if ( 2 == $this->field['handles'] ) {
                    $twoHandles = true;
                }

                // Set default values(s)
                if ( true == $twoHandles ) {
                    $valOne = $this->value[0];
                    $valTwo = $this->value[1];

                    $html = 'data-default-one="' . $valOne . '" ';
                    $html .= 'data-default-two="' . $valTwo . '" ';

                    $nameOne = $fieldName . '[1]';
                    $nameTwo = $fieldName . '[2]';

                    $idOne = $fieldID . '[1]';
                    $idTwo = $fieldID . '[2]';
                } else {
                    $valOne = $this->value;
                    $valTwo = '';

                    $html = 'data-default-one="' . $valOne . '"';

                    $nameOne = $fieldName;
                    $nameTwo = '';

                    $idOne = $fieldID;
                    $idTwo = '';
                }

                $showInput  = false;
                $showLabel  = false;
                $showSelect = false;

                // TEXT output
                if ( $this->display_text == $this->field['display_value'] ) {
                    $showInput = true;
                    echo '<input type="text"
                             name="' . $nameOne . '"
                             id="' . $idOne . '"
                             value="' . $valOne . '"
                             class="redux-slider-input redux-slider-input-one-' . $fieldID . ' ' . $this->field['class'] . '"/>';

                    // LABEL output
                } elseif ( $this->display_label == $this->field['display_value'] ) {
                    $showLabel = true;

                    $labelNum = $twoHandles ? '-one' : '';

                    echo '<div class="redux-slider-label' . $labelNum . '"
                           id="redux-slider-label-one-' . $fieldID . '"
                           name="' . $nameOne . '">
                      </div>';

                    // SELECT output
                } elseif ( $this->display_select == $this->field['display_value'] ) {
                    $showSelect = true;

                    if ( isset( $this->field['select2'] ) ) { // if there are any let's pass them to js
                        $select2_params = json_encode( $this->field['select2'] );
                        $select2_params = htmlspecialchars( $select2_params, ENT_QUOTES );

                        echo '<input type="hidden" class="select2_params" value="' . $select2_params . '">';
                    }


                    echo '<select class="redux-slider-select-one redux-slider-select-one-' . $fieldID . ' ' . $this->field['class'] . '"
                              name="' . $nameOne . '"
                              id="' . $idOne . '">
                     </select>';
                }

                // DIV output
                echo '<div ' . '
                    class="redux-slider-container"' . ' ' . $this->field['class'] . '
                    id="' . $fieldID . '" ' . '
                    data-id="' . $fieldID . '" ' . '
                    data-min="' . $this->field['min'] . '" ' . '
                    data-max="' . $this->field['max'] . '" ' . '
                    data-step="' . $this->field['step'] . '" ' . '
                    data-handles="' . $this->field['handles'] . '" ' . '
                    data-display="' . $this->field['display_value'] . '" ' . '
                    data-rtl="' . is_rtl() . '" ' . '
                    data-float-mark="' . $this->field['float_mark'] . '" ' . '
                    data-resolution="' . $this->field['resolution'] . '" ' . $html . '>' . '
                    </div>';

                // Double slider output
                if ( true == $twoHandles ) {

                    // TEXT
                    if ( true == $showInput ) {
                        echo '<input type="text"
                                 name="' . $nameTwo . '"
                                 id="' . $idTwo . '"
                                 value="' . $valTwo . '"
                                 class="redux-slider-input redux-slider-input-two-' . $fieldID . ' ' . $this->field['class'] . '"/>';
                    }

                    // LABEL
                    if ( true == $showLabel ) {
                        echo '<div class="redux-slider-label-two"
                               id="redux-slider-label-two-' . $fieldID . '"
                               name="' . $nameTwo . '">
                          </div>';
                    }

                    // SELECT
                    if ( true == $showSelect ) {
                        echo '<select class="redux-slider-select-two redux-slider-select-two-' . $fieldID . ' ' . $this->field['class'] . '"
                                  name="' . $nameTwo . '"
                                  id="' . $idTwo . '">
                         </select>';

                    }
                }

                // NO output (input hidden)
                if ( $this->display_none == $this->field['display_value'] || $this->display_label == $this->field['display_value'] ) {
                    echo '<input type="hidden"
                             class="redux-slider-value-one-' . $fieldID . ' ' . $this->field['class'] . '"
                             name="' . $nameOne . '"
                             id="' . $idOne . '"
                             value="' . $valOne . '"/>';

                    // double slider hidden output
                    if ( true == $twoHandles ) {
                        echo '<input type="hidden"
                                 class="redux-slider-value-two-' . $fieldID . ' ' . $this->field['class'] . '"
                                 name="' . $nameTwo . '"
                                 id="' . $idTwo . '"
                                 value="' . $valTwo . '"/>';
                    }
                }
            }
        }
    }