<?php

namespace rosavox\helpers\sqlite;


/**
 */
function placeholder(
	string $name
) : string
{
	return (':' . $name);
}


/**
 */
function map_type(string $type) : string
{
	switch ($type)
	{
		case 'bool':
		{
			return 'INTEGER';
			break;
		}
		case 'integer':
		{
			return 'INTEGER';
			break;
		}
		case 'string':
		{
			return 'TEXT';
			break;
		}
		default:
		{
			throw (new \Exception('unhandled type: ' . $type));
			break;
		}
	}
}


/**
 */
function format_value($value) : string
{
	if ($value === null)
	{
		return 'NULL';
	}
	else
	{
		$type = \gettype($value);
		switch ($type)
		{
			case 'bool':
			{
				return ($value ? '1' : '0');
				break;
			}
			case 'int':
			{
				return \sprintf('%u', $value);
				break;
			}
			case 'string':
			{
				return \sprintf("'%s'", $value);
				break;
			}
			default:
			{
				throw (new \Exception('unhandled type: ' . $type));
				break;
			}
		}
	}
}


/**
 */
function query(string $path, string $template, array $arguments) : array
{
	/*
	\error_log(
		\json_encode(
			[
				'template' => $template,
				'arguments' => $arguments,
			]
		)
	);
	 */
	$connection = new \SQLite3($path);
	$statement = $connection->prepare($template);
	foreach ($arguments as $key => $value)
	{
		$statement->bindValue(placeholder($key), $value);
	}
	$result = $statement->execute();
	$last_insert_id = $connection->lastInsertRowID();
	return [
		'result' => $result,
		'last_insert_id' => $last_insert_id,
	];
}

 ?>