<?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_Background
 * @author      Dovy Paukstys
 * @version     3.1.5
 */
// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

// Don't duplicate me!
if (!class_exists('ReduxFramework_background')) {

    /**
     * Main ReduxFramework_background class
     *
     * @since       3.1.5
     */
    class ReduxFramework_background {

        /**
         * Field Constructor.
         *
         * Required - must call the parent constructor, then assign field and value to vars, and obviously call the render field function
         *
         * @since       3.1.5
         * @access      public
         * @return      void
         */
        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       1.0.0
         * @access      public
         * @return      void
         */
        public function render() {

            $defaults = array(
                'background-color'      => true,
                'background-repeat'     => true,
                'background-attachment' => true,
                'background-position'   => true,
                'background-image'      => true,
                'background-gradient'   => false,
                'background-clip'       => false,
                'background-origin'     => false,
                'background-size'       => true,
                'preview_media'         => false,
                'preview'               => true,
                'preview_height'        => '200px',
                'transparent'           => true,
            );

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

            // No errors please
            $defaults = array(
                'background-color'      => '',
                'background-repeat'     => '',
                'background-attachment' => '',
                'background-position'   => '',
                'background-image'      => '',
                'background-clip'       => '',
                'background-origin'     => '',
                'background-size'       => '',
                'media'                 => array(),
            );

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

            $defaults = array(
                'id'        => '',
                'width'     => '',
                'height'    => '',
                'thumbnail' => '',
            );

            $this->value['media'] = wp_parse_args($this->value['media'], $defaults);

            if ($this->field['background-color'] === true) {

                if (isset($this->value['color']) && empty($this->value['background-color'])) {
                    $this->value['background-color'] = $this->value['color'];
                }

                echo '<input data-id="' . $this->field['id'] . '" name="' . $this->field['name'] . '[background-color]' . $this->field['name_suffix'] . '" id="' . $this->field['id'] . '-color" class="redux-color redux-background-input redux-color-init ' . $this->field['class'] . '"  type="text" value="' . $this->value['background-color'] . '"  data-default-color="' . ( isset($this->field['default']['background-color']) ? $this->field['default']['background-color'] : "" ) . '" />';

                if (!isset($this->field['transparent']) || $this->field['transparent'] !== false) {
                    $tChecked = "";
                    if ($this->value['background-color'] == "transparent") {
                        $tChecked = ' checked="checked"';
                    }
                    echo '<label for="' . $this->field['id'] . '-transparency" class="color-transparency-check"><input type="checkbox" class="checkbox color-transparency redux-background-input ' . $this->field['class'] . '" id="' . $this->field['id'] . '-transparency" data-id="' . $this->field['id'] . '-color" value="1"' . $tChecked . '> ' . __('Transparent', 'redux-framework') . '</label>';
                }

                if ($this->field['background-repeat'] === true || $this->field['background-position'] === true || $this->field['background-attachment'] === true) {
                    echo '<br />';
                }
            }


            if ($this->field['background-repeat'] === true) {
                $array = array(
                    'no-repeat' => 'No Repeat',
                    'repeat'    => 'Repeat All',
                    'repeat-x'  => 'Repeat Horizontally',
                    'repeat-y'  => 'Repeat Vertically',
                    'inherit'   => 'Inherit',
                );
                echo '<select id="' . $this->field['id'] . '-repeat-select" data-placeholder="' . __('Background Repeat', 'redux-framework') . '" name="' . $this->field['name'] . '[background-repeat]' . $this->field['name_suffix'] . '" class="redux-select-item redux-background-input background-repeat ' . $this->field['class'] . '">';
                echo '<option></option>';

                foreach ($array as $k => $v) {
                    echo '<option value="' . $k . '"' . selected($this->value['background-repeat'], $k, false) . '>' . $v . '</option>';
                }
                echo '</select>';
            }

            if ($this->field['background-clip'] === true) {
                $array = array(
                    'inherit'       => 'Inherit',
                    'border-box'    => 'Border Box',
                    'content-box'   => 'Content Box',
                    'padding-box'   => 'Padding Box',
                );
                echo '<select id="' . $this->field['id'] . '-repeat-select" data-placeholder="' . __('Background Clip', 'redux-framework') . '" name="' . $this->field['name'] . '[background-clip]' . $this->field['name_suffix'] . '" class="redux-select-item redux-background-input background-clip ' . $this->field['class'] . '">';
                echo '<option></option>';

                foreach ($array as $k => $v) {
                    echo '<option value="' . $k . '"' . selected($this->value['background-clip'], $k, false) . '>' . $v . '</option>';
                }
                echo '</select>';
            }

            if ($this->field['background-origin'] === true) {
                $array = array(
                    'inherit'       => 'Inherit',
                    'border-box'    => 'Border Box',
                    'content-box'   => 'Content Box',
                    'padding-box'   => 'Padding Box',
                );
                echo '<select id="' . $this->field['id'] . '-repeat-select" data-placeholder="' . __('Background Origin', 'redux-framework') . '" name="' . $this->field['name'] . '[background-origin]' . $this->field['name_suffix'] . '" class="redux-select-item redux-background-input background-origin ' . $this->field['class'] . '">';
                echo '<option></option>';

                foreach ($array as $k => $v) {
                    echo '<option value="' . $k . '"' . selected($this->value['background-origin'], $k, false) . '>' . $v . '</option>';
                }
                echo '</select>';
            }

            if ($this->field['background-size'] === true) {
                $array = array(
                    'inherit'   => 'Inherit',
                    'cover'     => 'Cover',
                    'contain'   => 'Contain',
                );
                echo '<select id="' . $this->field['id'] . '-repeat-select" data-placeholder="' . __('Background Size', 'redux-framework') . '" name="' . $this->field['name'] . '[background-size]' . $this->field['name_suffix'] . '" class="redux-select-item redux-background-input background-size ' . $this->field['class'] . '">';
                echo '<option></option>';

                foreach ($array as $k => $v) {
                    echo '<option value="' . $k . '"' . selected($this->value['background-size'], $k, false) . '>' . $v . '</option>';
                }
                echo '</select>';
            }

            if ($this->field['background-attachment'] === true) {
                $array = array(
                    'fixed'     => 'Fixed',
                    'scroll'    => 'Scroll',
                    'inherit'   => 'Inherit',
                );
                echo '<select id="' . $this->field['id'] . '-attachment-select" data-placeholder="' . __('Background Attachment', 'redux-framework') . '" name="' . $this->field['name'] . '[background-attachment]' . $this->field['name_suffix'] . '" class="redux-select-item redux-background-input background-attachment ' . $this->field['class'] . '">';
                echo '<option></option>';
                foreach ($array as $k => $v) {
                    echo '<option value="' . $k . '"' . selected($this->value['background-attachment'], $k, false) . '>' . $v . '</option>';
                }
                echo '</select>';
            }

            if ($this->field['background-position'] === true) {
                $array = array(
                    'left top'      => 'Left Top',
                    'left center'   => 'Left center',
                    'left bottom'   => 'Left Bottom',
                    'center top'    => 'Center Top',
                    'center center' => 'Center Center',
                    'center bottom' => 'Center Bottom',
                    'right top'     => 'Right Top',
                    'right center'  => 'Right center',
                    'right bottom'  => 'Right Bottom',
                );
                echo '<select id="' . $this->field['id'] . '-position-select" data-placeholder="' . __('Background Position', 'redux-framework') . '" name="' . $this->field['name'] . '[background-position]' . $this->field['name_suffix'] . '" class="redux-select-item redux-background-input background-position ' . $this->field['class'] . '">';
                echo '<option></option>';

                foreach ($array as $k => $v) {
                    echo '<option value="' . $k . '"' . selected($this->value['background-position'], $k, false) . '>' . $v . '</option>';
                }
                echo '</select>';
            }

            if ($this->field['background-image'] === true) {
                echo '<br />';

                if (empty($this->value) && !empty($this->field['default'])) { // If there are standard values and value is empty
                    if (is_array($this->field['default'])) {
                        if (!empty($this->field['default']['media']['id'])) {
                            $this->value['media']['id'] = $this->field['default']['media']['id'];
                        } else if (!empty($this->field['default']['id'])) {
                            $this->value['media']['id'] = $this->field['default']['id'];
                        }

                        if (!empty($this->field['default']['url'])) {
                            $this->value['background-image'] = $this->field['default']['url'];
                        } else if (!empty($this->field['default']['media']['url'])) {
                            $this->value['background-image'] = $this->field['default']['media']['url'];
                        } else if (!empty($this->field['default']['background-image'])) {
                            $this->value['background-image'] = $this->field['default']['background-image'];
                        }
                    } else {
                        if (is_numeric($this->field['default'])) { // Check if it's an attachment ID
                            $this->value['media']['id'] = $this->field['default'];
                        } else { // Must be a URL
                            $this->value['background-image'] = $this->field['default'];
                        }
                    }
                }


                if (empty($this->value['background-image']) && !empty($this->value['media']['id'])) {
                    $img = wp_get_attachment_image_src($this->value['media']['id'], 'full');
                    $this->value['background-image']    = $img[0];
                    $this->value['media']['width']      = $img[1];
                    $this->value['media']['height']     = $img[2];
                }

                $hide = 'hide ';

                if ((isset($this->field['preview_media']) && $this->field['preview_media'] === false)) {
                    $this->field['class'] .= " noPreview";
                }

                if ((!empty($this->field['background-image']) && $this->field['background-image'] === true ) || isset($this->field['preview']) && $this->field['preview'] === false) {
                    $hide = '';
                }

                $placeholder = isset($this->field['placeholder']) ? $this->field['placeholder'] : __('No media selected', 'redux-framework');

                echo '<input placeholder="' . $placeholder . '" type="text" class="redux-background-input ' . $hide . 'upload ' . $this->field['class'] . '" name="' . $this->field['name'] . '[background-image]' . $this->field['name_suffix'] . '" id="' . $this->parent->args['opt_name'] . '[' . $this->field['id'] . '][background-image]" value="' . $this->value['background-image'] . '" />';
                echo '<input type="hidden" class="upload-id ' . $this->field['class'] . '" name="' . $this->field['name'] . '[media][id]' . $this->field['name_suffix'] . '" id="' . $this->parent->args['opt_name'] . '[' . $this->field['id'] . '][media][id]" value="' . $this->value['media']['id'] . '" />';
                echo '<input type="hidden" class="upload-height" name="' . $this->field['name'] . '[media][height]' . $this->field['name_suffix'] . '" id="' . $this->parent->args['opt_name'] . '[' . $this->field['id'] . '][media][height]" value="' . $this->value['media']['height'] . '" />';
                echo '<input type="hidden" class="upload-width" name="' . $this->field['name'] . '[media][width]' . $this->field['name_suffix'] . '" id="' . $this->parent->args['opt_name'] . '[' . $this->field['id'] . '][media][width]" value="' . $this->value['media']['width'] . '" />';
                echo '<input type="hidden" class="upload-thumbnail" name="' . $this->field['name'] . '[media][thumbnail]' . $this->field['name_suffix'] . '" id="' . $this->parent->args['opt_name'] . '[' . $this->field['id'] . '][media][thumbnail]" value="' . $this->value['media']['thumbnail'] . '" />';

                //Preview
                $hide = '';

                if ((isset($this->field['preview_media']) && $this->field['preview_media'] === false) || empty($this->value['background-image'])) {
                    $hide = 'hide ';
                }

                if (empty($this->value['media']['thumbnail']) && !empty($this->value['background-image'])) { // Just in case
                    if (!empty($this->value['media']['id'])) {
                        $image = wp_get_attachment_image_src($this->value['media']['id'], array(150, 150));
                        $this->value['media']['thumbnail'] = $image[0];
                    } else {
                        $this->value['media']['thumbnail'] = $this->value['background-image'];
                    }
                }

                echo '<div class="' . $hide . 'screenshot">';
                echo '<a class="of-uploaded-image" href="' . $this->value['background-image'] . '" target="_blank">';
                echo '<img class="redux-option-image" id="image_' . $this->value['media']['id'] . '" src="' . $this->value['media']['thumbnail'] . '" alt="" target="_blank" rel="external" />';
                echo '</a>';
                echo '</div>';

                //Upload controls DIV
                echo '<div class="upload_button_div">';

                //If the user has WP3.5+ show upload/remove button
                echo '<span class="button redux-background-upload" id="' . $this->field['id'] . '-media">' . __('Upload', 'redux-framework') . '</span>';

                $hide = '';
                if (empty($this->value['background-image']) || $this->value['background-image'] == '')
                    $hide = ' hide';

                echo '<span class="button removeCSS redux-remove-background' . $hide . '" id="reset_' . $this->field['id'] . '" rel="' . $this->field['id'] . '">' . __('Remove', 'redux-framework') . '</span>';

                echo '</div>';
            }


            /**
              Preview
             * */
            if (!isset($this->field['preview']) || $this->field['preview'] !== false):

                $css = $this->getCSS();
                if (empty($css)) {
                    $css = "display:none;";
                }
                $css .= "height: " . $this->field['preview_height'] . ";";
                echo '<p class="clear ' . $this->field['id'] . '_previewer background-preview" style="' . $css . '">&nbsp;</p>';

            endif;
        }

        /**
         * Enqueue Function.
         *
         * If this field requires any scripts, or css define this function and register/enqueue the scripts/css
         *
         * @since       1.0.0
         * @access      public
         * @return      void
         */
        public function enqueue() {
            wp_enqueue_script(
                'redux-field-background-js', 
                ReduxFramework::$_url . 'inc/fields/background/field_background.js', 
                array('jquery', 'wp-color-picker', 'select2-js'), 
                time(), 
                true
            );

            wp_enqueue_script(
                'field-select-js', 
                ReduxFramework::$_url . 'inc/fields/select/field_select.js', 
                array('jquery', 'select2-js'), 
                time(), 
                true
            );

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

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

        public static function getCSS($value = array()) {

            $css = '';

            if (!empty($value) && is_array($value)) {
                foreach ($value as $key => $value) {
                    if (!empty($value) && $key != "media") {
                        if ($key == "background-image") {
                            $css .= $key . ":url('" . $value . "');";
                        } else {
                            $css .= $key . ":" . $value . ";";
                        }
                    }
                }
            }
            return $css;
        }

        public function output() {
            $style = $this->getCSS($this->value);
            
            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 . '}';
                }
            }
        }
    }
}
