<?php

namespace App\Models\Reports;

use Config\OSPOS;

class Summary_taxes extends Summary_report
{
    private array $config;

    public function __construct()
    {
        parent::__construct();
        $this->config = config(OSPOS::class)->settings;
    }

    /**
     * @return array[]
     */
    protected function _get_data_columns(): array    // TODO: hungarian notation
    {
        return [
            ['tax_name'     => lang('Reports.tax_name'), 'sortable' => false],
            ['tax_percent'  => lang('Reports.tax_percent'), 'sorter' => 'number_sorter'],
            ['report_count' => lang('Reports.sales'), 'sorter' => 'number_sorter'],
            ['subtotal'     => lang('Reports.subtotal'), 'sorter' => 'number_sorter'],
            ['tax'          => lang('Reports.tax'), 'sorter' => 'number_sorter'],
            ['total'        => lang('Reports.total'), 'sorter' => 'number_sorter']
        ];
    }

    /**
     * @param array $inputs
     * @param $builder
     * @return void
     */
    protected function _where(array $inputs, &$builder): void    // TODO: hungarian notation
    {
        $builder->where('sales.sale_status', COMPLETED);

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

    /**
     * @param array $inputs
     * @return array
     */
    public function getData(array $inputs): array
    {
        $decimals = totals_decimals();
        $db_prefix = $this->db->getPrefix();

        if ($this->config['tax_included']) {
            $sale_total = '(CASE WHEN ' . $db_prefix . 'sales_items.discount_type = ' . PERCENT
                . " THEN " . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price - ROUND(" . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price * " . $db_prefix . "sales_items.discount / 100, $decimals)"
                . ' ELSE ' . $db_prefix . 'sales_items.quantity_purchased * (' . $db_prefix . 'sales_items.item_unit_price - ' . $db_prefix . 'sales_items.discount) END)';

            $sale_subtotal = '(CASE WHEN ' . $db_prefix . 'sales_items.discount_type = ' . PERCENT
                . " THEN " . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price - ROUND(" . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price * " . $db_prefix . "sales_items.discount / 100, $decimals) "
                . 'ELSE ' . $db_prefix . 'sales_items.quantity_purchased * ' . $db_prefix . 'sales_items.item_unit_price - ' . $db_prefix . 'sales_items.discount END * (100 / (100 + ' . $db_prefix . 'sales_items_taxes.percent)))';
        } else {
            $sale_total = '(CASE WHEN ' . $db_prefix . 'sales_items.discount_type = ' . PERCENT
                . " THEN " . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price - ROUND(" . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price * " . $db_prefix . "sales_items.discount / 100, $decimals)"
                . ' ELSE ' . $db_prefix . 'sales_items.quantity_purchased * ' . $db_prefix . 'sales_items.item_unit_price - ' . $db_prefix . 'sales_items.discount END * (1 + (' . $db_prefix . 'sales_items_taxes.percent / 100)))';

            $sale_subtotal = '(CASE WHEN ' . $db_prefix . 'sales_items.discount_type = ' . PERCENT
                . " THEN " . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price - ROUND(" . $db_prefix . "sales_items.quantity_purchased * " . $db_prefix . "sales_items.item_unit_price * " . $db_prefix . "sales_items.discount / 100, $decimals)"
                . ' ELSE ' . $db_prefix . 'sales_items.quantity_purchased * (' . $db_prefix . 'sales_items.item_unit_price - ' . $db_prefix . 'sales_items.discount) END)';
        }

        $subquery_builder = $this->db->table('sales_items');
        $subquery_builder->select("name AS name, CONCAT(IFNULL(ROUND(percent, $decimals), 0), '%') AS percent, sales.sale_id AS sale_id, $sale_subtotal AS subtotal, IFNULL($db_prefix" . "sales_items_taxes.item_tax_amount, 0) AS tax, IFNULL($sale_total, $sale_subtotal) AS total");

        $subquery_builder->join('sales', 'sales_items.sale_id = sales.sale_id', 'inner');
        $subquery_builder->join('sales_items_taxes', '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', 'left outer');

        $subquery_builder->where('sale_status', COMPLETED);

        if (empty($this->config['date_or_time_format'])) {
            $subquery_builder->where('DATE(' . $db_prefix . 'sales.sale_time) BETWEEN ' . $this->db->escape($inputs['start_date']) . ' AND ' . $this->db->escape($inputs['end_date']));
        } else {
            $subquery_builder->where('sales.sale_time BETWEEN ' . $this->db->escape(rawurldecode($inputs['start_date'])) . ' AND ' . $this->db->escape(rawurldecode($inputs['end_date'])));
        }

        $builder = $this->db->newQuery()->fromSubquery($subquery_builder, 'temp_taxes');
        $builder->select("name, percent, COUNT(DISTINCT sale_id) AS count, ROUND(SUM(subtotal), $decimals) AS subtotal, ROUND(SUM(tax), $decimals) AS tax, ROUND(SUM(total), $decimals) total");
        $builder->groupBy('percent, name');

        return $builder->get()->getResultArray();
    }
}