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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

require_once("Summary_report.php");

class Summary_taxes extends Summary_report
{
    function __construct()
    {
        parent::__construct();
    }

    protected function _get_data_columns()
    {
        return array(
            array('tax_percent' => $this->lang->line('reports_tax_percent'), 'sorter' => 'number_sorter'),
            array('report_count' => $this->lang->line('reports_count')),
            array('subtotal' => $this->lang->line('reports_subtotal'), 'sorter' => 'number_sorter'),
            array('tax' => $this->lang->line('reports_tax'), 'sorter' => 'number_sorter'),
            array('total' => $this->lang->line('reports_total'), 'sorter' => 'number_sorter'));
    }

    protected function _where(array $inputs)
    {
        if(empty($this->config->item('date_or_time_format')))
        {
            $this->db->where('sale_status = 0 AND DATE(sales.sale_time) BETWEEN ' . $this->db->escape($inputs['start_date']) . ' AND ' . $this->db->escape($inputs['end_date']));
        }
        else
        {
            $this->db->where('sale_status = 0 AND sales.sale_time BETWEEN ' . $this->db->escape(rawurldecode($inputs['start_date'])) . ' AND ' . $this->db->escape(rawurldecode($inputs['end_date'])));
        }
    }

    public function getData(array $inputs)
    {
        $where = '';

        if(empty($this->config->item('date_or_time_format')))
        {
            $where .= 'WHERE sale_status = 0 AND DATE(sale_time) BETWEEN ' . $this->db->escape($inputs['start_date']) . ' AND ' . $this->db->escape($inputs['end_date']);
        }
        else
        {
            $where .= 'WHERE sale_status = 0 AND sale_time BETWEEN ' . $this->db->escape(rawurldecode($inputs['start_date'])) . ' AND ' . $this->db->escape(rawurldecode($inputs['end_date']));
        }

        if($this->config->item('tax_included'))
        {
            $sale_total = '(sales_items.item_unit_price * sales_items.quantity_purchased * (1 - sales_items.discount_percent / 100))';
            $sale_subtotal = '(sales_items.item_unit_price * sales_items.quantity_purchased * (1 - sales_items.discount_percent / 100) * (100 / (100 + sales_items_taxes.percent)))';
            $sale_tax = '(sales_items.item_unit_price * sales_items.quantity_purchased * (1 - sales_items.discount_percent / 100) * (1 - 100 / (100 + sales_items_taxes.percent)))';
        }
        else
        {
            $sale_total = '(sales_items.item_unit_price * sales_items.quantity_purchased * (1 - sales_items.discount_percent / 100) * (1 + (sales_items_taxes.percent / 100)))';
            $sale_subtotal = '(sales_items.item_unit_price * sales_items.quantity_purchased * (1 - sales_items.discount_percent / 100))';
            $sale_tax = '(sales_items.item_unit_price * sales_items.quantity_purchased * (1 - sales_items.discount_percent / 100) * (sales_items_taxes.percent / 100))';
        }

        $decimals = totals_decimals();

        $query = $this->db->query("SELECT percent, count(*) AS count, ROUND(SUM(subtotal), $decimals) AS subtotal, ROUND(SUM(tax), $decimals) AS tax, ROUND(SUM(total), $decimals) AS total
            FROM (
                SELECT
                    CONCAT(IFNULL(ROUND(percent, $decimals), 0), '%') AS percent,
                    $sale_subtotal AS subtotal,
                    IFNULL($sale_tax, 0) AS tax,
                    IFNULL($sale_total, $sale_subtotal) AS total
                    FROM " . $this->db->dbprefix('sales_items') . ' AS sales_items
                    INNER JOIN ' . $this->db->dbprefix('sales') . ' AS sales
                        ON sales_items.sale_id = sales.sale_id
                    LEFT OUTER JOIN ' . $this->db->dbprefix('sales_items_taxes') . ' AS sales_items_taxes
                        ON sales_items.sale_id = sales_items_taxes.sale_id AND sales_items.item_id = sales_items_taxes.item_id AND sales_items.line = sales_items_taxes.line
                    ' . $where . '
                ) AS temp_taxes
            GROUP BY percent'
        );

        return $query->result_array();
    }
}
?>