<?php
declare(strict_types=1);
namespace JKingWeb\Arsse;
use \org\bovigo\vfs\vfsStream;


class TestDbUpdateSQLite3 extends \PHPUnit\Framework\TestCase {
    use Test\Tools;

    protected $data;
	protected $drv;
	protected $vfs;
	protected $base;

	const MINIMAL1 = "create table arsse_settings(key text primary key not null, value text, type text not null); pragma user_version=1";
	const MINIMAL2 = "pragma user_version=2";

    function setUp() {
        $this->vfs = vfsStream::setup("schemata", null, ['SQLite3' => []]);
		$conf = new Conf();
		$conf->dbDriver = Db\SQLite3\Driver::class;
		$conf->dbSchemaBase = $this->vfs->url();
		$this->base = $this->vfs->url()."/SQLite3/";
		$conf->dbSQLite3File = ":memory:";
		$this->data = new Test\RuntimeData($conf);
		$this->drv = new Db\SQLite3\Driver($this->data, true);
    }

    function tearDown() {
        unset($this->drv);
        unset($this->data);
        unset($this->vfs);
    }

	function testLoadMissingFile() {
		$this->assertException("updateFileMissing", "Db");
	    $this->drv->schemaUpdate(1);
	}

	function testLoadUnreadableFile() {
		touch($this->base."0.sql");
		chmod($this->base."0.sql", 0000);
		$this->assertException("updateFileUnreadable", "Db");
	    $this->drv->schemaUpdate(1);
	}

	function testLoadCorruptFile() {
		file_put_contents($this->base."0.sql", "This is a corrupt file");
		$this->assertException("updateFileError", "Db");
	    $this->drv->schemaUpdate(1);
	}

	function testLoadIncompleteFile() {
		file_put_contents($this->base."0.sql", "create table arsse_settings(key text primary key not null, value text, type text not null);");
		$this->assertException("updateFileIncomplete", "Db");
	    $this->drv->schemaUpdate(1);
	}

	function testLoadCorrectFile() {
		file_put_contents($this->base."0.sql", self::MINIMAL1);
	    $this->drv->schemaUpdate(1);
		$this->assertEquals(1, $this->drv->schemaVersion());
	}

	function testPerformPartialUpdate() {
		file_put_contents($this->base."0.sql", self::MINIMAL1);
		file_put_contents($this->base."1.sql", "");
		$this->assertException("updateFileIncomplete", "Db");
	    try {
			$this->drv->schemaUpdate(2);
		} catch(Exception $e) {
			$this->assertEquals(1, $this->drv->schemaVersion());
			throw $e;
		}
	}

	function testPerformSequentialUpdate() {
		file_put_contents($this->base."0.sql", self::MINIMAL1);
		file_put_contents($this->base."1.sql", self::MINIMAL2);
		$this->drv->schemaUpdate(2);
	    $this->assertEquals(2, $this->drv->schemaVersion());
	}

	function testPerformActualUpdate() {
	    $this->data->conf->dbSchemaBase = (new Conf())->dbSchemaBase;
		$this->drv->schemaUpdate(Database::SCHEMA_VERSION);
		$this->assertEquals(Database::SCHEMA_VERSION, $this->drv->schemaVersion());
	}
}