<?php

/**
 *
 * @filesource   QRCodeTest.php
 * @created      08.02.2016
 * @author       Smiley <smiley@chillerlan.net>
 * @copyright    2015 Smiley
 * @license      MIT
 */

namespace chillerlan\QRCodeTest;

use chillerlan\QRCode\Output\QRString;
use chillerlan\QRCode\QRCode;
use chillerlan\QRCode\QRConst;
use chillerlan\QRCode\QROptions;
use ReflectionClass;
use PHPUnit\Framework\TestCase;

class QRCodeTest extends TestCase{

	/**
	 * @var \chillerlan\QRCode\QROptions
	 */
	protected $options;

	/**
	 * @var \chillerlan\QRCode\Output\QROutputInterface
	 */
	protected $output;

	/**
	 * @var \ReflectionClass
	 */
	protected $reflectionClass;

	protected function setUp(){
		$this->options = new QROptions;
		$this->output = new QRString;
		$this->reflectionClass = new ReflectionClass(QRCode::class);
	}

	public function testInstance(){
		$this->assertInstanceOf(QRString::class, $this->output);
		$this->assertInstanceOf(QROptions::class, $this->options);
		$this->assertInstanceOf(QRCode::class, $this->reflectionClass->newInstanceArgs(['foobar', $this->output, $this->options]));
	}

	public function stringDataProvider(){
		return [
			['1234567890', QRCode::TYPE_01],
			['ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 $%*+-./:', QRCode::TYPE_03],
			['#\\', QRCode::TYPE_01],
			['茗荷', QRCode::TYPE_01],
		];
	}

	/**
	 * @dataProvider stringDataProvider
	 */
	public function testDataCoverage($data){
		(new QRCode($data, $this->output))->getRawData();
		$this->markTestSkipped('code coverage');
	}

	/**
	 * @dataProvider stringDataProvider
	 */
	public function testTypeAndErrorcorrectlevelCoverage($data){
		foreach(QRConst::MAX_BITS as $type => $x){
			foreach(QRConst::RSBLOCK as $eclevel => $y){
				$this->options->typeNumber = $type;
				$this->options->errorCorrectLevel = $eclevel;
				$this->assertInstanceOf(QRCode::class, new QRCode($data, $this->output, $this->options));
			}
		}
	}

	/**
	 * @dataProvider stringDataProvider
	 */
	public function testTypeAutoOverride($data, $type){

		$property = $this->reflectionClass->getProperty('typeNumber');
		$property->setAccessible(true);

		$this->options->typeNumber = 'foo';
		$this->assertSame($type, $property->getValue($this->reflectionClass->newInstanceArgs([$data, $this->output, $this->options])));

		$this->options->typeNumber = 42;
		$this->assertSame($type, $property->getValue($this->reflectionClass->newInstanceArgs([$data, $this->output, $this->options])));

		$this->options->typeNumber = QRCode::TYPE_05;
		$this->assertSame(QRCode::TYPE_05, $property->getValue($this->reflectionClass->newInstanceArgs([$data, $this->output, $this->options])));
	}


	public function getMatrixDataProvider(){
		return [
			[QRCode::TYPE_01, 'foobar', 21],
			[QRCode::TYPE_05, 'foobar', 37],
			[QRCode::TYPE_10, 'foobar', 57],
			[QRCode::TYPE_05, '1234567890', 37],
			[QRCode::TYPE_10, '1234567890', 57],
			[QRCode::TYPE_03, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 $%*+-./:', 29],
			[QRCode::TYPE_05, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 $%*+-./:', 37],
			[QRCode::TYPE_10, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 $%*+-./:', 57],
			[QRCode::TYPE_05, '茗荷', 37],
			[QRCode::TYPE_10, '茗荷', 57],
		];
	}

	/**
	 * @dataProvider getMatrixDataProvider
	 */
	public function testInternalGetMatrix($type, $data, $pixelCount){
		$method = $this->reflectionClass->getMethod('getMatrix');
		$method->setAccessible(true);

		$property = $this->reflectionClass->getProperty('pixelCount');
		$property->setAccessible(true);

		$this->options->typeNumber = $type;

		for($i = 0; $i <= 7; $i++){
			$qrcode = $this->reflectionClass->newInstanceArgs([$data, $this->output, $this->options]);
			$method->invokeArgs($qrcode, [false, $i]);

			$this->assertSame($pixelCount, $property->getValue($qrcode));
		}
	}

	/**
	 * @expectedException \chillerlan\QRCode\QRCodeException
	 * @expectedExceptionMessage No data given.
	 */
	public function testNoDataException(){
		$this->reflectionClass->newInstanceArgs(['', $this->output]);
	}

	/**
	 * @expectedException \chillerlan\QRCode\QRCodeException
	 * @expectedExceptionMessage Invalid error correct level: 42
	 */
	public function testErrorCorrectLevelException(){
		$this->options->errorCorrectLevel = 42;
		$this->reflectionClass->newInstanceArgs(['foobar', $this->output, $this->options]);
	}

	/**
	 * @expectedException \chillerlan\QRCode\QRCodeException
	 * @expectedExceptionMessage code length overflow. (261 > 72bit)
	 */
	public function testCodeLengthOverflowException(){
		$this->options->typeNumber = QRCode::TYPE_01;
		$this->options->errorCorrectLevel = QRCode::ERROR_CORRECT_LEVEL_H;

		$method = $this->reflectionClass->getMethod('getRawData');
		$method->invoke($this->reflectionClass->newInstanceArgs(['ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 $%*+-./:', $this->output, $this->options]));
	}

}