<?php

namespace ByJG\AnyDataset\Db\Helpers;

use ByJG\AnyDataset\Db\DbDriverInterface;

class DbPgsqlFunctions extends DbBaseFunctions
{
    public function __construct()
    {
        $this->deliFieldLeft = '"';
        $this->deliFieldRight = '"';
        $this->deliTableLeft = '"';
        $this->deliTableRight = '"';
    }

    public function concat($str1, $str2 = null)
    {
        return implode(' || ', func_get_args());
    }

    /**
     * Given a SQL returns it with the proper LIMIT or equivalent method included
     * @param string $sql
     * @param int $start
     * @param int $qty
     * @return string
     */
    public function limit($sql, $start, $qty = null)
    {
        if (is_null($qty)) {
            $qty = 50;
        }

        if (stripos($sql, ' LIMIT ') === false) {
            $sql = $sql . " LIMIT x OFFSET y";
        }

        return preg_replace(
            '~(\s[Ll][Ii][Mm][Ii][Tt])\s.*?\s([Oo][Ff][Ff][Ss][Ee][Tt])\s.*~',
            '$1 ' . $qty .' $2 ' .$start,
            $sql
        );
    }

    /**
     * Given a SQL returns it with the proper TOP or equivalent method included
     * @param string $sql
     * @param int $qty
     * @return string
     */
    public function top($sql, $qty)
    {
        return $this->limit($sql, 0, $qty);
    }

    /**
     * Return if the database provider have a top or similar function
     * @return bool
     */
    public function hasTop()
    {
        return true;
    }

    /**
     * Return if the database provider have a limit function
     * @return bool
     */
    public function hasLimit()
    {
        return true;
    }

    /**
     * Format date column in sql string given an input format that understands Y M D
     *
     * @param string $format
     * @param string|null $column
     * @return string
     * @example $db->getDbFunctions()->SQLDate("d/m/Y H:i", "dtcriacao")
     */
    public function sqlDate($format, $column = null)
    {
        if (is_null($column)) {
            $column = 'current_timestamp';
        }

        $pattern = [
            'Y' => "YYYY",
            'y' => "YY",
            'M' => "Mon",
            'm' => "MM",
            'Q' => "Q",
            'q' => "Q",
            'D' => "DD",
            'd' => "DD",
            'h' => "HH",
            'H' => "HH24",
            'i' => "MI",
            's' => "SS",
            'a' => "AM",
            'A' => "AM",
        ];

        return sprintf(
            "TO_CHAR(%s,'%s')",
            $column,
            implode('', $this->prepareSqlDate($format, $pattern, ''))
        );
    }

    /**
     * @param DbDriverInterface $dbdataset
     * @param string $sql
     * @param array $param
     * @return int
     */
    public function executeAndGetInsertedId(DbDriverInterface $dbdataset, $sql, $param)
    {
        parent::executeAndGetInsertedId($dbdataset, $sql, $param);
        return $dbdataset->getScalar('select lastval()');
    }

    public function hasForUpdate()
    {
        return true;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODQ0MzIyOTc2ODM4ODQ0MCA2MzQyNzM3NjgyMDAyNDc1IDM2OTE4NTg1NDcxNDQ5OTQ=