<?php
/*
* @package		Tech Fry Library
* @license		https://www.gnu.org/licenses/gpl-3.0.en.html
*/

namespace TechFry\Library\View\Sky;

defined('_JEXEC') or die;

class Grid
{
    // Row is divided into columns - large, medium, small
    // Equal columns - column width calculated automatically using number of columns
    // Unequal columns - column widths provided by user like 9+3
    
    public $classes = []; // Depreciated
  
  	public $grid = []; // Depreciated

    public $large = []; // Depreciated

    public $medium = []; // Depreciated

    public $small = []; // Depreciated

    // Depreciated
    public function __construct($widths_or_number = '')
    {
        // $widths_or_number: column widths or number of columns for equal widths
        // $widths - 2,6,4
        
        $array = $widths_or_number ? explode(';', $widths_or_number) : [];

        if (isset($array[0]))
        {
            $this->large = str_getcsv($array[0]);
        }
        
        if (isset($array[1]))
        {
            $this->medium = str_getcsv($array[1]);
        }
        
        if (isset($array[2]))
        {
            $this->small = str_getcsv($array[2]);
        }
    }

    // Get classes for columns (Depreciated)
    public function get_rwd()
    {
        $classes = []; // column-wise classes

        foreach ($this->large as $k => $lg)
        {
            $classes[$k] = 'col-lg-' . $lg;
        }

        foreach ($this->medium as $k => $md)
        {
            $classes[$k] = 'col-md-' . $md . ' ' . $classes[$k];
        }

        foreach ($this->small as $k => $sm)
        {
            $classes[$k] = 'col-' . $sm . ' ' . $classes[$k];
        }

        return $classes;
    }

    // Get class for equal width columns (Depreciated)
  	public function get_grid()
    {
    	$class = 'row';

        if ($this->small)
        {
            $class .= ' row-cols-' . $this->small[0];
        }

        if ($this->medium)
        {
            $class .= ' row-cols-md-' . $this->medium[0];
        }

        if ($this->large)
        {
            $class .= ' row-cols-lg-' . $this->large[0];
        }

        return $class;
    }

    public function equal_columns($config = [])
    {
        $class = 'row';

        if (isset($config['sm']) && $config['sm'])
        {
            $class .= ' row-cols-' . $config['sm'];
        }

        if (isset($config['md']) && $config['md'])
        {
            $class .= ' row-cols-md-' . $config['md'];
        }

        if (isset($config['lg']) && $config['lg'])
        {
            $class .= ' row-cols-lg-' . $config['lg'];
        }

        $gap = (isset($config['gap']) && $config['gap']) ? $config['gap'] : 'g-3';
        $class .= ' ' . $gap;

        return $class;
    }

    public function custom_columns($config = [])
    {
        $config = (array) $config; // sm, md, lg

        // Set default if not set
        $config['sm'] = isset($config['sm']) && $config['sm'] ? $config['sm'] : 12;
        $config['md'] = isset($config['md']) && $config['md'] ? $config['md'] : 12;
        $config['lg'] = isset($config['lg']) && $config['lg'] ? $config['lg'] : 12;
        
        $columns = []; // column-wise classes

        // Widths for each breakpoint
        $sm = explode('+', $config['sm']);
        $md = explode('+', $config['md']);
        $lg = explode('+', $config['lg']);

        $max_cols = max(count($sm), count($md), count($lg));

        for ($i = 0; $i < $max_cols; $i++)
        {
            $classes = [];

            if (isset($sm[$i]) && $sm[$i] > 0) 
            {
                $classes[] = 'col-' . intval($sm[$i]);
            }

            if (isset($md[$i]) && $md[$i] > 0) 
            {
                $classes[] = 'col-md-' . intval($md[$i]);
            }

            if (isset($lg[$i]) && $lg[$i] > 0) 
            {
                $classes[] = 'col-lg-' . intval($lg[$i]);
            }

            // Join all breakpoint classes for this column
            $columns[] = implode(' ', $classes);
        }

        return $columns;
    }
}