<?php

namespace yiiunit\framework\validators;


use yii\validators\FileValidator;
use yii\web\UploadedFile;
use Yii;
use yiiunit\data\validators\models\FakedValidationModel;
use yiiunit\TestCase;

class FileValidatorTest extends TestCase
{
	public function setUp()
	{
		$this->mockApplication();
	}

	public function testAssureMessagesSetOnInit()
	{
		$val = new FileValidator();
		foreach (['message', 'uploadRequired', 'tooMany', 'wrongType', 'tooBig', 'tooSmall'] as $attr) {
			$this->assertTrue(is_string($val->$attr));
		}
	}

	public function testTypeSplitOnInit()
	{
		$val = new FileValidator(['types' => 'jpeg, jpg, gif']);
		$this->assertEquals(['jpeg', 'jpg', 'gif'], $val->types);
		$val = new FileValidator(['types' => 'jpeg']);
		$this->assertEquals(['jpeg'], $val->types);
		$val = new FileValidator(['types' => '']);
		$this->assertEquals([], $val->types);
		$val = new FileValidator(['types' => []]);
		$this->assertEquals([], $val->types);
		$val = new FileValidator();
		$this->assertEquals([], $val->types);
		$val = new FileValidator(['types' => ['jpeg', 'exe']]);
		$this->assertEquals(['jpeg', 'exe'], $val->types);
	}

	public function testGetSizeLimit()
	{
		$size = $this->sizeToBytes(ini_get('upload_max_filesize'));
		$val = new FileValidator();
		$this->assertEquals($size, $val->getSizeLimit());
		$val->maxSize = $size + 1; // set and test if value is overridden
		$this->assertEquals($size, $val->getSizeLimit());
		$val->maxSize = abs($size - 1);
		$this->assertEquals($size - 1, $val->getSizeLimit());
		$_POST['MAX_FILE_SIZE'] = $size + 1;
		$this->assertEquals($size - 1, $val->getSizeLimit());
		$_POST['MAX_FILE_SIZE'] = abs($size - 2);
		$this->assertSame($_POST['MAX_FILE_SIZE'], $val->getSizeLimit());
	}

	protected function sizeToBytes($sizeStr)
	{
		switch (substr($sizeStr, -1)) {
			case 'M':
			case 'm':
				return (int)$sizeStr * 1048576;
			case 'K':
			case 'k':
				return (int)$sizeStr * 1024;
			case 'G':
			case 'g':
				return (int)$sizeStr * 1073741824;
			default:
				return (int)$sizeStr;
		}
	}

	public function testValidateAttributeMultiple()
	{
		$val = new FileValidator(['maxFiles' => 2]);
		$m = FakedValidationModel::createWithAttributes(['attr_files' => 'path']);
		$val->validateAttribute($m, 'attr_files');
		$this->assertTrue($m->hasErrors('attr_files'));
		$m = FakedValidationModel::createWithAttributes(['attr_files' => []]);
		$val->validateAttribute($m, 'attr_files');
		$this->assertTrue($m->hasErrors('attr_files'));
		$this->assertSame($val->uploadRequired, current($m->getErrors('attr_files')));
		$m = FakedValidationModel::createWithAttributes(
			[
				'attr_files' => $this->createTestFiles(
					[
						[
							'name' => 'test_up_1.txt',
							'size' => 1024,
						],
						[
							'error' => UPLOAD_ERR_NO_FILE,
						],
					]
				)
			]
		);
		$val->validateAttribute($m, 'attr_files');
		$this->assertFalse($m->hasErrors('attr_files'));
		$m = FakedValidationModel::createWithAttributes([
			'attr_files' => $this->createTestFiles([
				[''], [''], ['']
			])
		]);
		$val->validateAttribute($m, 'attr_files');
		$this->assertTrue($m->hasErrors());
		$this->assertTrue(stripos(current($m->getErrors('attr_files')), 'you can upload at most') !== false);
	}

	/**
	 * @param array $params
	 * @return UploadedFile[]
	 */
	protected function createTestFiles($params = [])
	{
		$rndString = function ($len = 10) {
			$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
			$randomString = '';
			for ($i = 0; $i < $len; $i++) {
				$randomString .= $characters[rand(0, strlen($characters) - 1)];
			}
			return $randomString;
		};
		$files = [];
		foreach ($params as $param) {
			if (empty($param) && count($params) != 1) {
				$files[] = ['no instance of UploadedFile'];
				continue;
			}
			$name = isset($param['name']) ? $param['name'] : $rndString();
			$tempName = \Yii::getAlias('@yiiunit/runtime/validators/file/tmp') . $name;
			if (is_readable($tempName)) {
				$size = filesize($tempName);
			} else {
				$size = isset($param['size']) ? $param['size'] : rand(
					1,
					$this->sizeToBytes(ini_get('upload_max_filesize'))
				);
			}
			$type = isset($param['type']) ? $param['type'] : 'text/plain';
			$error = isset($param['error']) ? $param['error'] : UPLOAD_ERR_OK;
			if (count($params) == 1) {
				$error = empty($param) ? UPLOAD_ERR_NO_FILE : $error;
				return new UploadedFile([
					'name' => $name,
					'tempName' => $tempName,
					'type' => $type,
					'size' => $size,
					'error' => $error
				]);
			}
			$files[] = new UploadedFile([
				'name' => $name,
				'tempName' => $tempName,
				'type' => $type,
				'size' => $size,
				'error' => $error
			]);
		}
		return $files;
	}

	public function testValidateAttribute()
	{
		// single File
		$val = new FileValidator();
		$m = $this->createModelForAttributeTest();
		$val->validateAttribute($m, 'attr_files');
		$this->assertFalse($m->hasErrors());
		$val->validateAttribute($m, 'attr_files_empty');
		$this->assertTrue($m->hasErrors('attr_files_empty'));
		$this->assertSame($val->uploadRequired, current($m->getErrors('attr_files_empty')));

		// single File with skipOnEmpty=false
		$val = new FileValidator(['skipOnEmpty' => false]);
		$m = $this->createModelForAttributeTest();
		$val->validateAttribute($m, 'attr_files');
		$this->assertFalse($m->hasErrors());
		$val->validateAttribute($m, 'attr_files_empty');
		$this->assertTrue($m->hasErrors('attr_files_empty'));
		$this->assertSame($val->uploadRequired, current($m->getErrors('attr_files_empty')));
		$m = $this->createModelForAttributeTest();

		// too big
		$val = new FileValidator(['maxSize' => 128]);
		$val->validateAttribute($m, 'attr_files');
		$this->assertTrue($m->hasErrors('attr_files'));
		$this->assertTrue(stripos(current($m->getErrors('attr_files')), 'too big') !== false);
		// to Small
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator(['minSize' => 2048]);
		$val->validateAttribute($m, 'attr_files');
		$this->assertTrue($m->hasErrors('attr_files'));
		$this->assertTrue(stripos(current($m->getErrors('attr_files')), 'too small') !== false);
		// UPLOAD_ERR_INI_SIZE/UPLOAD_ERR_FORM_SIZE
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator();
		$val->validateAttribute($m, 'attr_err_ini');
		$this->assertTrue($m->hasErrors('attr_err_ini'));
		$this->assertTrue(stripos(current($m->getErrors('attr_err_ini')), 'too big') !== false);
		// UPLOAD_ERR_PARTIAL
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator();
		$val->validateAttribute($m, 'attr_err_part');
		$this->assertTrue($m->hasErrors('attr_err_part'));
		$this->assertSame(Yii::t('yii', 'File upload failed.'), current($m->getErrors('attr_err_part')));
	}

	public function testValidateAttributeType()
	{
		$val = new FileValidator(['types' => 'jpeg, jpg']);
		$m = FakedValidationModel::createWithAttributes(
			[
				'attr_jpg' => $this->createTestFiles([['name' => 'one.jpeg']]),
				'attr_exe' => $this->createTestFiles([['name' => 'bad.exe']]),
			]
		);
		$val->validateAttribute($m, 'attr_jpg');
		$this->assertFalse($m->hasErrors('attr_jpg'));
		$val->validateAttribute($m, 'attr_exe');
		$this->assertTrue($m->hasErrors('attr_exe'));
		$this->assertTrue(stripos(current($m->getErrors('attr_exe')), 'Only files with these extensions ') !== false);
	}


	protected function createModelForAttributeTest()
	{
		return FakedValidationModel::createWithAttributes(
			[
				'attr_files' => $this->createTestFiles([
					['name' => 'abc.jpg', 'size' => 1024, 'type' => 'image/jpeg'],
				]),
				'attr_files_empty' => $this->createTestFiles([[]]),
				'attr_err_ini' => $this->createTestFiles([['error' => UPLOAD_ERR_INI_SIZE]]),
				'attr_err_part' => $this->createTestFiles([['error' => UPLOAD_ERR_PARTIAL]]),
				'attr_err_tmp' => $this->createTestFiles([['error' => UPLOAD_ERR_NO_TMP_DIR]]),
				'attr_err_write' => $this->createTestFiles([['error' => UPLOAD_ERR_CANT_WRITE]]),
				'attr_err_ext' => $this->createTestFiles([['error' => UPLOAD_ERR_EXTENSION]]),
			]
		);
	}

	public function testValidateAttributeErrPartial()
	{
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator();
		$val->validateAttribute($m, 'attr_err_part');
		$this->assertTrue($m->hasErrors('attr_err_part'));
		$this->assertSame(Yii::t('yii', 'File upload failed.'), current($m->getErrors('attr_err_part')));
	}

	public function testValidateAttributeErrCantWrite()
	{
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator();
		$val->validateAttribute($m, 'attr_err_write');
		$this->assertTrue($m->hasErrors('attr_err_write'));
		$this->assertSame(Yii::t('yii', 'File upload failed.'), current($m->getErrors('attr_err_write')));
	}

	public function testValidateAttributeErrExtension()
	{
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator();
		$val->validateAttribute($m, 'attr_err_ext');
		$this->assertTrue($m->hasErrors('attr_err_ext'));
		$this->assertSame(Yii::t('yii', 'File upload failed.'), current($m->getErrors('attr_err_ext')));
	}

	public function testValidateAttributeErrNoTmpDir()
	{
		$m = $this->createModelForAttributeTest();
		$val = new FileValidator();
		$val->validateAttribute($m, 'attr_err_tmp');
		$this->assertTrue($m->hasErrors('attr_err_tmp'));
		$this->assertSame(Yii::t('yii', 'File upload failed.'), current($m->getErrors('attr_err_tmp')));
	}
}
