<?php
/**
 * This source file is part of the open source project
 * ExpressionEngine (https://expressionengine.com)
 *
 * @link      https://expressionengine.com/
 * @copyright Copyright (c) 2003-2022, Packet Tide, LLC (https://www.packettide.com)
 * @license   https://expressionengine.com/license Licensed under Apache License, Version 2.0
 */

/**
 * Channel Parser Component (Dates)
 */
class EE_Channel_date_parser implements EE_Channel_parser_component
{
    /**
     * Check if dates are enabled.
     *
     * @param array		A list of "disabled" features
     * @return Boolean	Is disabled?
     */
    public function disabled(array $disabled, EE_Channel_preparser $pre)
    {
        return false;
    }

    /**
     * Fulfilling the requirements of the abstract class we inherit from.
     *
     * @param String	The tagdata to be parsed
     * @param Object	The preparser object.
     * @return Array	An empty array.
     */
    public function pre_process($tagdata, EE_Channel_preparser $pre)
    {
        return array();
    }

    /**
     * Replace all of the default date fields.
     *
     * @param String	The tagdata to be parsed
     * @param Object	The channel parser object
     * @param Mixed		The results from the preparse method
     *
     * @return String	The processed tagdata
     */
    public function replace($tagdata, EE_Channel_data_parser $obj, $date_vars)
    {
        $prefix = $obj->prefix();
        $tag = $obj->tag();
        $data = $obj->row();

        $dates = array(
            $prefix . 'entry_date' => $data['entry_date'],
            $prefix . 'edit_date' => $data['edit_date'],
            $prefix . 'recent_comment_date' => ($data['recent_comment_date'] != 0) ? $data['recent_comment_date'] : '',
            $prefix . 'expiration_date' => ($data['expiration_date'] != 0) ? $data['expiration_date'] : '',
            $prefix . 'comment_expiration_date' => ($data['comment_expiration_date'] != 0) ? $data['comment_expiration_date'] : ''
        );

        // "week_date"
        // Subtract the number of days the entry is "into" the week to get zero (Sunday)
        // If the entry date is for Sunday, and Monday is being used as the week's start day,
        // then we must back things up by six days

        $offset = 0;

        if (strtolower(ee()->TMPL->fetch_param('start_day')) == 'monday') {
            $day_of_week = ee()->localize->format_date('%w', $data['entry_date']);

            if ($day_of_week == '0') {
                $offset = -518400; // back six days
            } else {
                $offset = 86400; // plus one day
            }
        }

        $dates['week_date'] = $data['entry_date'] - (ee()->localize->format_date('%w', $data['entry_date'], true) * 60 * 60 * 24) + $offset;

        $tagdata = ee()->TMPL->parse_date_variables($tagdata, $dates);

        $dates = array(
            $prefix . 'gmt_date' => $data['entry_date'],
            $prefix . 'gmt_entry_date' => $data['entry_date'],
            $prefix . 'gmt_edit_date' => $data['edit_date'],
        );

        $tagdata = ee()->TMPL->parse_date_variables($tagdata, $dates, false);

        return $tagdata;
    }
}
