<?php

namespace WPDeveloper\BetterDocs\Shortcodes;
use WPDeveloper\BetterDocs\Core\Shortcode;

class ReadingTime extends Shortcode {
    public function get_name() {
        return 'betterdocs_reading_time';
    }

    public function get_style_depends() {
        return ['reading-time'];
    }

    public function default_attributes() {
        return [
            'reading_title' => __( '', 'betterdocs' ),
            'reading_text'  => __( 'min read', 'betterdocs' ),
            'content'       => __( "Reading Time", 'betterdocs' ),
            'the_content'   => get_the_content()
        ];
    }

    public function render( $atts, $content = null ) {
        $this->views( 'shortcodes/reading-time' );
    }

    public function view_params() {
        $single_doc_content        = $this->attributes['the_content'];
        $content_without_html_tags = strip_tags( $single_doc_content );
        preg_match_all('/<[^>]*>|[\p{L}\p{M}]+/u', $content_without_html_tags, $matches );
        $reading_total_words = ! empty( $matches[0] ) ? count( $matches[0] ) : count( [] );

        //lets assume an adult reads 200 words per minute, based on this information calculate the reading time
        $minutes = floor( $reading_total_words / 200 );
        $seconds = floor( $reading_total_words % 200 / ( 200 / 60 ) );
        $minutes = $minutes != 0 && $seconds >= 30 ? ( $minutes + 1 ) : ( $minutes != 0 && $minutes != 1 && $seconds < 30 ? ( $minutes - 1 ) : ( $minutes == 1 ? $minutes : '< ' . 1 ) );
        $post_id = get_the_ID();

        $est_reading_text = ! empty( get_post_meta( $post_id, '_betterdocs_est_reading_text', true ) ) ? get_post_meta( $post_id, '_betterdocs_est_reading_text', true ) : '';
        $calculate_time   = $minutes . ' ' . $this->attributes['reading_text'];
        $calculate_time   = ! empty( $est_reading_text ) ? $est_reading_text : $calculate_time;

        return [
            'reading_title' => $this->attributes['reading_title'],
            'time'          => $calculate_time
        ];
    }
}