<?php declare(strict_types=1);

use PHPUnit\Framework\TestCase;

use BradyMcD\TAATP\URI\Otpauth;

// For more information about the specification, refer to google's documentation on github.
// https://github.com/google/google-authenticator/wiki/Key-Uri-Format
/** @SuppressWarnings(PHPMD.StaticAccess)*/
final class URITest extends TestCase
{
    public function testRejectsInvalidUri(): void
    {
        $string = 'totp/ACME%20Co:john.doe@email.com?secret=HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ&issuer=ACME%20Co&algorithm=MD5&digits=8&period=60';

        $this->expectException(\InvalidArgumentException::class);

        Otpauth::fromString($string);
    }


    public function testRejectsMissingSecretInformation(): void
    {
        $string = 'otpauth://totp/ACME%20Co:john.doe@email.com?issuer=ACME%20Co&algorithm=MD5&digits=8&period=60';

        $this->expectException(\InvalidArgumentException::class);

        Otpauth::fromString($string);
    }

    public function testPreservesAllUriFields(): void
    {
        $string = 'otpauth://totp/ACME%20Co:john.doe@email.com?secret=HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ&issuer=ACME%20Co&algorithm=MD5&digits=8&period=60';

         $queryComponents = [ "secret" => "HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ",
                              "issuer" => "ACME Co",
                              "algorithm" => "MD5",
                              "digits" => 8,
                              "period" => 60,];

       $provisioningUri = Otpauth::fromString($string);

        $this->assertSame($provisioningUri->issuer, $queryComponents['issuer']);
        $this->assertSame($provisioningUri->digits, $queryComponents['digits']);
        $this->assertSame($provisioningUri->period, $queryComponents['period']);
        $this->assertSame($provisioningUri->algorithm, $queryComponents['algorithm']);

        $calculatedUrl = $provisioningUri->emitStr();

        $parsedOtp = \parse_url($calculatedUrl);
        $parsedTest = \parse_url($string);

        $parsedOtpQuery = [];
        $parsedTestQuery = [];

        \parse_str($parsedOtp['query'], $parsedOtpQuery);
        unset($parsedOtp['query']);
        \parse_str($parsedTest['query'], $parsedTestQuery);
        unset($parsedTest['query']);

        $this->assertEqualsCanonicalizing($parsedOtp, $parsedTest);
        $this->assertEqualsCanonicalizing($parsedOtpQuery, $parsedTestQuery);
    }

    public function testCanFallbackToDefaults(): void
    {
        $string = 'otpauth://totp/Example:john.doe@email.com?secret=HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ';
        $queryComponents = [ "secret" => "HXDMVJECJJWSRB3HWIZR4IFUGFTMXBOZ",
                             "issuer" => "Example",
                             "algorithm" => "SHA1",
                             "digits" => 6,
                             "period" => 30,];


        $provisioningUri = Otpauth::fromString($string);

        $this->assertSame($provisioningUri->algorithm, $queryComponents['algorithm']);
        $this->assertSame($provisioningUri->digits, $queryComponents['digits']);
        $this->assertSame($provisioningUri->period, $queryComponents['period']);
        $this->assertSame($provisioningUri->issuer, $queryComponents['issuer']);
    }
}

?>