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<?php

namespace Laminas\Db\Sql;

use function gettype;
use function is_callable;
use function is_object;
use function is_string;
use function sprintf;

class TableIdentifier
{
    /** @var string */
    protected $table;

    /** @var null|string */
    protected $schema;

    /**
     * @param string      $table
     * @param null|string $schema
     */
    public function __construct($table, $schema = null)
    {
        if (! (is_string($table) || is_callable([$table, '__toString']))) {
            throw new Exception\InvalidArgumentException(sprintf(
                '$table must be a valid table name, parameter of type %s given',
                is_object($table) ? $table::class : gettype($table)
            ));
        }

        $this->table = (string) $table;

        if ('' === $this->table) {
            throw new Exception\InvalidArgumentException('$table must be a valid table name, empty string given');
        }

        if (null === $schema) {
            $this->schema = null;
        } else {
            if (! (is_string($schema) || is_callable([$schema, '__toString']))) {
                throw new Exception\InvalidArgumentException(sprintf(
                    '$schema must be a valid schema name, parameter of type %s given',
                    is_object($schema) ? $schema::class : gettype($schema)
                ));
            }

            $this->schema = (string) $schema;

            if ('' === $this->schema) {
                throw new Exception\InvalidArgumentException(
                    '$schema must be a valid schema name or null, empty string given'
                );
            }
        }
    }

    /**
     * @deprecated please use the constructor and build a new {@see TableIdentifier} instead
     *
     * @param string $table
     */
    public function setTable($table)
    {
        $this->table = $table;
    }

    /**
     * @return string
     */
    public function getTable()
    {
        return $this->table;
    }

    /**
     * @return bool
     */
    public function hasSchema()
    {
        return $this->schema !== null;
    }

    /**
     * @deprecated please use the constructor and build a new {@see TableIdentifier} instead
     *
     * @param null|string $schema
     * @return void
     */
    public function setSchema($schema)
    {
        $this->schema = $schema;
    }

    /**
     * @return null|string
     */
    public function getSchema()
    {
        return $this->schema;
    }

    /** @return array{0: string, 1: null|string} */
    public function getTableAndSchema()
    {
        return [$this->table, $this->schema];
    }
}