<?php
if (!defined('ABSPATH')) {
    exit;
}

class Blogmarks_Popular_Posts extends Blogmarks_Widget_Base
{
    /**
     * Constructor.
     */
    public function __construct()
    {

        $this->widget_cssclass = 'widget_blogmarks_popular_posts';
        $this->widget_description = __('Displays popular posts with an image', 'blogmarks');
        $this->widget_id = 'blogmarks_popular_posts';
        $this->widget_name = __('Blogmarks: Popular Posts', 'blogmarks');
        $this->settings = array(
            'title' => array(
                'type' => 'text',
                'label' => __('Title', 'blogmarks'),
            ),
            'post_settings_heading' => array(
                'type' => 'heading',
                'label' => __('Post Settings', 'blogmarks'),
            ),
            'category' => array(
                'type' => 'dropdown-taxonomies',
                'label' => __('Select Category', 'blogmarks'),
                'desc' => __('Leave empty if you don\'t want the posts to be category specific', 'blogmarks'),
                'args' => array(
                    'taxonomy' => 'category',
                    'class' => 'widefat',
                    'hierarchical' => true,
                    'show_count' => 1,
                    'show_option_all' => __('&mdash; Select &mdash;', 'blogmarks'),
                ),
            ),
            'no_of_posts' => array(
                'type' => 'number',
                'step' => 1,
                'min' => 1,
                'max' => '',
                'std' => 5,
                'label' => __('Number of posts to show', 'blogmarks'),
            ),
            'offset' => array(
                'type' => 'number',
                'step' => 1,
                'min' => 0,
                'max' => '',
                'std' => '',
                'label' => __('Offset', 'blogmarks'),
                'desc' => __('Can be useful if you want to skip certain number of posts. Leave as 0 if you do not want to use it.', 'blogmarks'),
            ),
            'orderby' => array(
                'type' => 'select',
                'std' => 'date',
                'label' => __('Order By', 'blogmarks'),
                'options' => array(
                    'date' => __('Date', 'blogmarks'),
                    'ID' => __('ID', 'blogmarks'),
                    'title' => __('Title', 'blogmarks'),
                    'rand' => __('Random', 'blogmarks'),
                ),
            ),
            'order' => array(
                'type' => 'select',
                'std' => 'desc',
                'label' => __('Order', 'blogmarks'),
                'options' => array(
                    'asc' => __('ASC', 'blogmarks'),
                    'desc' => __('DESC', 'blogmarks'),
                ),
            ),
            'meta_settings_heading' => array(
                'type' => 'heading',
                'label' => __('Post Meta Settings', 'blogmarks'),
            ),
            'post_meta' => array(
                'type' => 'multi-checkbox',
                'label' => __('Post Meta', 'blogmarks'),
                'options' => array(
                    'author' => __('Author', 'blogmarks'),
                    'read_time' => __('Post Read Time', 'blogmarks'),
                    'date' => __('Date', 'blogmarks'),
                    'comment' => __('Comment', 'blogmarks'),
                ),
                'std' => array('author', 'date'),
            ),
            'show_meta_on_spotlight_only' => array(
                'type' => 'checkbox',
                'label' => __('Show Post Metas on Spotlight Post Only', 'blogmarks'),
                'desc' => __('Make sure to select post meta from above for this to work.', 'blogmarks'),
                'std' => false,
            ),
            'post_meta_icon' => array(
                'type' => 'checkbox',
                'label' => __('Show Post Meta Icon', 'blogmarks'),
                'desc' => __('Some Icons may show up regardless to provide better info.', 'blogmarks'),
                'std' => false,
            ),
            'date_format' => array(
                'type' => 'select',
                'label' => __('Date Format', 'blogmarks'),
                'desc' => __('Make sure to select Date from above for this to work.', 'blogmarks'),
                'options' => array(
                    'format_1' => __('Times Ago', 'blogmarks'),
                    'format_2' => __('Default Format', 'blogmarks'),
                ),
                'std' => 'format_2',
            ),
            'image_size' => array(
                'type' => 'select',
                'std' => 'large',
                'label' => __('Featured Image Size', 'blogmarks'),
                'options' => array(
                    'full' => __('Full', 'blogmarks'),
                    'large' => __('Large', 'blogmarks'),
                    'medium_large' => __('Medium Large', 'blogmarks'),
                    'medium' => __('Medium', 'blogmarks'),
                ),
            ),
            'author_image' => array(
                'type' => 'checkbox',
                'label' => __('Show Author Image', 'blogmarks'),
                'desc' => __('Make sure to select Author from above for this to work. Will only show up in spotlight post.', 'blogmarks'),
                'std' => false,
            ),
            'category_settings_heading' => array(
                'type' => 'heading',
                'label' => __('Category Settings', 'blogmarks'),
            ),
            'show_category' => array(
                'type' => 'checkbox',
                'label' => __('Show Category', 'blogmarks'),
                'std' => false,
            ),
            'category_color' => array(
                'type' => 'select',
                'label' => __('Category Color', 'blogmarks'),
                'options' => blogmarks_get_category_color_display(),
                'std' => 'none',
            ),
            'category_style' => array(
                'type' => 'select',
                'label' => __('Category Style', 'blogmarks'),
                'options' => blogmarks_get_category_styles(),
                'std' => 'style_1',
            ),
            'no_of_category' => array(
                'type' => 'number',
                'step' => 1,
                'min' => 0,
                'max' => '',
                'std' => 1,
                'label' => __('Number of Category to Display', 'blogmarks'),
            ),
            'show_cat_on_spotlight_only' => array(
                'type' => 'checkbox',
                'label' => __('Show Categories on Spotlight Post Only', 'blogmarks'),
                'desc' => __('Make sure to select Show Category from above for this to work.', 'blogmarks'),
                'std' => false,
            ),
            'widget_settings_heading' => array(
                'type' => 'heading',
                'label' => __('Widget Settings', 'blogmarks'),
            ),
            'style' => array(
                'type' => 'select',
                'label' => __('Style', 'blogmarks'),
                'options' => array(
                    'style_1' => __('List Only', 'blogmarks'),
                    'style_2' => __('Spotlight + List', 'blogmarks'),
                ),
                'std' => 'style_1',
            ),
            'counter_style' => array(
                'type' => 'select',
                'label' => __('Counter Style', 'blogmarks'),
                'options' => array(
                    'style_1' => __('Plain', 'blogmarks'),
                    'style_2' => __('Plain with a dot', 'blogmarks'),
                    'style_3' => __('Plain with a border', 'blogmarks'),
                    'style_4' => __('With Background', 'blogmarks'),
                    'style_5' => __('With Circular Background', 'blogmarks'),
                ),
                'std' => 'style_5',
            ),
            'counter_accent_color' => array(
                'type' => 'checkbox',
                'label' => __('Use accent color for the counter', 'blogmarks'),
                'std' => false,
            ),
            'inverted_block_color' => array(
                'type' => 'checkbox',
                'label' => __('Inverted Color', 'blogmarks'),
                'desc' => __('Can be used if you have dark background and want lighter color on the text.', 'blogmarks'),
                'std' => false,
            ),
            'title_limit' => array(
                'type' => 'select',
                'label' => __('Title Line Limit', 'blogmarks'),
                'options' => blogmarks_get_title_limit_choices(),
                'std' => '',
            ),
            'spotlight_post_display_settings_heading' => array(
                'type' => 'message',
                'label' => __('Spotlight Posts Settings', 'blogmarks'),
            ),
            'spotlight_counter_style' => array(
                'type' => 'select',
                'label' => __('Spotlight Post Counter Style', 'blogmarks'),
                'desc' => __('Useful if you want different counter style on spotlight post.', 'blogmarks'),
                'options' => array(
                    '' => __('&mdash; Inherit &mdash;', 'blogmarks'),
                    'style_1' => __('Plain', 'blogmarks'),
                    'style_2' => __('Plain with a dot', 'blogmarks'),
                    'style_3' => __('Plain with a border', 'blogmarks'),
                    'style_4' => __('With Background', 'blogmarks'),
                    'style_5' => __('With Circular Background', 'blogmarks'),
                ),
                'std' => '',
            ),
            'border_below_spotlight_post' => array(
                'type' => 'checkbox',
                'label' => __('Enable Border Below Spotlight Post', 'blogmarks'),
                'std' => false,
            ),
            'bigger_counter_spotlight_post' => array(
                'type' => 'checkbox',
                'label' => __('Increase Counter Font Size on Spotlight Post', 'blogmarks'),
                'std' => false,
            ),
            'list_post_display_settings_heading' => array(
                'type' => 'message',
                'label' => __('List Posts Settings', 'blogmarks'),
            ),
            'invert_list_post' => array(
                'type' => 'checkbox',
                'label' => __('Invert List Post', 'blogmarks'),
                'std' => false,
            ),
        );

        parent::__construct();

        add_action('wp_enqueue_scripts', array($this, 'enqueue_assets'));
    }

    /**
     * Query the posts and return them.
     *
     * @param array $args
     * @param array $instance
     * @return WP_Query
     */
    public function get_posts($args, $instance)
    {
        $number = !empty($instance['no_of_posts']) ? absint($instance['no_of_posts']) : $this->settings['no_of_posts']['std'];
        $orderby = !empty($instance['orderby']) ? sanitize_text_field($instance['orderby']) : $this->settings['orderby']['std'];
        $order = !empty($instance['order']) ? sanitize_text_field($instance['order']) : $this->settings['order']['std'];
        $offset = !empty($instance['offset']) ? sanitize_text_field($instance['offset']) : $this->settings['offset']['std'];

        $query_args = array(
            'posts_per_page' => $number,
            'post_status' => 'publish',
            'no_found_rows' => 1,
            'orderby' => $orderby,
            'order' => $order,
            'ignore_sticky_posts' => 1,
        );

        if ($offset && 0 != $offset) {
            $query_args['offset'] = absint($offset);
        }

        if (!empty($instance['category']) && -1 !== $instance['category'] && 0 !== $instance['category']) {
            $query_args['tax_query'][] = array(
                'taxonomy' => 'category',
                'field' => 'term_id',
                'terms' => $instance['category'],
            );
        }

        return new WP_Query(apply_filters('blogmarks_popular_posts_query_args', $query_args));
    }

    /**
     * Output widget.
     *
     * @param array $args
     * @param array $instance
     * @see WP_Widget
     *
     */
    public function widget($args, $instance)
    {

        ob_start();

        if (($posts = $this->get_posts($args, $instance)) && $posts->have_posts()) {
            $this->widget_start($args, $instance);

            do_action('blogmarks_before_popular_posts_with_image');

            $style = isset($instance['style']) ? $instance['style'] : $this->settings['style']['std'];
            $widget_class = $style;

            $title_limit = isset($instance['title_limit']) ? $instance['title_limit'] : $this->settings['title_limit']['std'];
            $counter_accent_color = isset($instance['counter_accent_color']) ? $instance['counter_accent_color'] : $this->settings['counter_accent_color']['std'];
            $inverted_block_color = isset($instance['inverted_block_color']) ? $instance['inverted_block_color'] : $this->settings['inverted_block_color']['std'];
            $counter_style = isset($instance['counter_style']) ? $instance['counter_style'] : $this->settings['counter_style']['std'];

            $show_category = isset($instance['show_category']) ? $instance['show_category'] : $this->settings['show_category']['std'];
            if ($show_category) {
                $cat_style = isset($instance['category_style']) ? $instance['category_style'] : $this->settings['category_style']['std'];
                $color = isset($instance['category_color']) ? $instance['category_color'] : $this->settings['category_color']['std'];
                $limit = isset($instance['no_of_category']) ? $instance['no_of_category'] : $this->settings['no_of_category']['std'];
            }
            $cat_on_spotlight_only = isset($instance['show_cat_on_spotlight_only']) ? $instance['show_cat_on_spotlight_only'] : $this->settings['show_cat_on_spotlight_only']['std'];

            $enabled_post_meta = isset($instance['post_meta']) ? $instance['post_meta'] : $this->settings['post_meta']['std'];
            $meta_settings['date_format'] = isset($instance['date_format']) ? $instance['date_format'] : $this->settings['date_format']['std'];
            $meta_settings['show_icons'] = isset($instance['post_meta_icon']) ? $instance['post_meta_icon'] : $this->settings['post_meta_icon']['std'];
            $meta_settings['author_image'] = isset($instance['author_image']) ? $instance['author_image'] : $this->settings['author_image']['std'];
            $meta_on_spotlight_only = isset($instance['show_meta_on_spotlight_only']) ? $instance['show_meta_on_spotlight_only'] : $this->settings['show_meta_on_spotlight_only']['std'];

// Check for list only styles.
            $list_only_style = false;
            if ('style_1' == $style) {
                $list_only_style = true;
            }

            $image_size = $instance['image_size'];
            $spotlight_post_style = 'style_1';

// Counter Accent Color.
            if ($counter_accent_color) {
                $widget_class .= ' blogmarks-is-counter-accent';
            }

// Inverted Color.
            if ($inverted_block_color) {
                $widget_class .= ' widget-inverted-scheme';
            }

// Border Below Spotlight Post.
            $border_below_spotlight_post = isset($instance['border_below_spotlight_post']) ? $instance['border_below_spotlight_post'] : $this->settings['border_below_spotlight_post']['std'];
            if ($border_below_spotlight_post) {
                $widget_class .= ' blogmarks-border-popular-spotlight';
            }

// Bigger Counter in Spotlight Post.
            $bigger_counter_spotlight_post = isset($instance['bigger_counter_spotlight_post']) ? $instance['bigger_counter_spotlight_post'] : $this->settings['bigger_counter_spotlight_post']['std'];
            if ($bigger_counter_spotlight_post) {
                $widget_class .= ' blogmarks-big-popular-spotlight';
            }

// Inverted Style.
            $invert_list_post = isset($instance['invert_list_post']) ? $instance['invert_list_post'] : $this->settings['invert_list_post']['std'];

            if ($invert_list_post) {
                $widget_class .= ' has-inverted-items';
            }

            $show_image = false;
            $is_spotlight_post = false;
            ?>

            <div class="site-popular-widget <?php echo esc_attr($widget_class); ?>">
                <?php
                $counter = 1;
                $total_posts = $posts->post_count;

                $post_counter_style = $counter_style;

                while ($posts->have_posts()) :
                    $posts->the_post();

                    if (!$list_only_style) {

                        if (1 == $counter) {
                            $is_spotlight_post = true;
                            $wrapper_class_start = '<div class="site-popular-spotlight ' . $spotlight_post_style . '">';
                            $wrapper_class_end = '</div>';


                            $spotlight_counter_style = isset($instance['spotlight_counter_style']) ? $instance['spotlight_counter_style'] : $this->settings['spotlight_counter_style']['std'];
                            if ($spotlight_counter_style) {
                                $counter_style = $spotlight_counter_style;
                            }
                        } else {
                            $is_spotlight_post = false;
                            if (2 == $counter) {
                                $wrapper_class_start = '<div class="site-post-group">';
                            } else {
                                $wrapper_class_start = '';
                            }
                            // Make sure to close on the last post.
                            if ($counter == $total_posts) {
                                $wrapper_class_end = '</div>';
                            } else {
                                $wrapper_class_end = '';
                            }

                            $counter_style = $post_counter_style;
                        }
                    } else {
                        $wrapper_class_start = '<div class="site-post-group">';
                        $wrapper_class_end = '</div>';
                    }

                    if ($is_spotlight_post) {
                        $show_image = true;
                    } else {
                        $show_image = false;
                    }
                    ?>

                    <?php echo wp_kses_post($wrapper_class_start); ?>

                    <?php
                    if ($show_image) :
                        $this->display_image($image_size);
                    endif;
                    ?>
                    <article id="popular-widget-<?php the_ID(); ?>" <?php post_class('widget-post site-list-post popular-widget-post'); ?>>

                        <?php $this->display_counter($counter, $counter_style); ?>

                        <div class="entry-summary">
                            <?php

                            if ($show_category) {
                                if ($cat_on_spotlight_only) {
                                    if ($is_spotlight_post) {
                                        $this->display_categories($cat_style, $color, $limit);
                                    }
                                } else {
                                    $this->display_categories($cat_style, $color, $limit);
                                }
                            }

                            $this->display_title($title_limit);

                            if (!$is_spotlight_post) {
                                $meta_settings['author_image'] = false;
                            }
                            if ($meta_on_spotlight_only) {
                                if ($is_spotlight_post) {
                                    $this->display_meta($enabled_post_meta, $meta_settings);
                                }
                            } else {
                                $this->display_meta($enabled_post_meta, $meta_settings);
                            }
                            ?>

                        </div>

                    </article>

                    <?php echo wp_kses_post($wrapper_class_end); ?>

                    <?php
                    $counter++;
                endwhile;
                wp_reset_postdata();
                ?>
            </div>
            <?php

            do_action('blogmarks_after_popular_posts_with_image');

            $this->widget_end($args);
        }

        echo ob_get_clean();
    }

    public function display_image($size)
    {
        if (has_post_thumbnail()) :
            ?>
            <div class="entry-image entry-image-<?php echo isset($instance['image_size']) ? esc_attr($instance['image_size']) : ''; ?> image-hover-animate image-hover-zoom">
                <a href="<?php the_permalink(); ?>">
                    <?php
                    the_post_thumbnail(
                        $size,
                        array(
                            'alt' => the_title_attribute(
                                array(
                                    'echo' => false,
                                )
                            ),
                        )
                    );
                    ?>
                </a>
            </div>
        <?php
        endif;
    }

    public function display_counter($counter, $counter_style)
    {
        ?>
        <div class="entry-counter <?php echo esc_attr($counter_style); ?>"><?php echo esc_html(sprintf('%02d', $counter)); ?></div>
        <?php
    }

    public function display_title($title_limit)
    {
        ?>
        <h3 class="entry-title entry-title-small title-line-clamp <?php echo esc_attr($title_limit); ?>">
            <a href="<?php the_permalink(); ?>">
                <?php the_title(); ?>
            </a>
        </h3>
        <?php
    }

    public function display_categories($cat_style, $color, $limit)
    {
        ?>
        <div class="entry-categories-wrapper">
            <?php blogmarks_post_categories($cat_style, $color, $limit); ?>
        </div>
        <?php
    }

    public function display_meta($enabled_post_meta, $meta_settings)
    {
        blogmarks_post_meta_info($enabled_post_meta, $meta_settings);
    }

    public function enqueue_assets()
    {
        if (is_active_widget(false, false, $this->id_base)) {
            $file_prefix = is_rtl() ? '-rtl' : '';
            $css_file = get_template_directory() . '/include/widgets/assets/popular-posts' . $file_prefix . '.css';
            if (file_exists($css_file)) {
                $styles = wp_strip_all_tags(file_get_contents($css_file));
                wp_add_inline_style('blogmarks-style', $styles);
            }
        }
    }
}