<?php

namespace Symfony\Component\DependencyInjection\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\DependencyInjection\Container;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\EnvVarProcessor;

class EnvVarProcessorTest extends TestCase
{
    const TEST_CONST = 'test';

    /**
     * @dataProvider validStrings
     */
    public function testGetEnvString($value, $processed)
    {
        $container = new ContainerBuilder();
        $container->setParameter('env(foo)', $value);
        $container->compile();

        $processor = new EnvVarProcessor($container);

        $result = $processor->getEnv('string', 'foo', function () {
            $this->fail('Should not be called');
        });

        $this->assertSame($processed, $result);
    }

    public function validStrings()
    {
        return [
            ['hello', 'hello'],
            ['true', 'true'],
            ['false', 'false'],
            ['null', 'null'],
            ['1', '1'],
            ['0', '0'],
            ['1.1', '1.1'],
            ['1e1', '1e1'],
        ];
    }

    /**
     * @dataProvider validBools
     */
    public function testGetEnvBool($value, $processed)
    {
        $processor = new EnvVarProcessor(new Container());

        $result = $processor->getEnv('bool', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });

        $this->assertSame($processed, $result);
    }

    public function validBools()
    {
        return [
            ['true', true],
            ['false', false],
            ['null', false],
            ['1', true],
            ['0', false],
            ['1.1', true],
            ['1e1', true],
        ];
    }

    /**
     * @dataProvider validInts
     */
    public function testGetEnvInt($value, $processed)
    {
        $processor = new EnvVarProcessor(new Container());

        $result = $processor->getEnv('int', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });

        $this->assertSame($processed, $result);
    }

    public function validInts()
    {
        return [
            ['1', 1],
            ['1.1', 1],
            ['1e1', 10],
        ];
    }

    /**
     * @dataProvider invalidInts
     */
    public function testGetEnvIntInvalid($value)
    {
        $this->expectException('Symfony\Component\DependencyInjection\Exception\RuntimeException');
        $this->expectExceptionMessage('Non-numeric env var');
        $processor = new EnvVarProcessor(new Container());

        $processor->getEnv('int', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });
    }

    public function invalidInts()
    {
        return [
            ['foo'],
            ['true'],
            ['null'],
        ];
    }

    /**
     * @dataProvider validFloats
     */
    public function testGetEnvFloat($value, $processed)
    {
        $processor = new EnvVarProcessor(new Container());

        $result = $processor->getEnv('float', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });

        $this->assertSame($processed, $result);
    }

    public function validFloats()
    {
        return [
            ['1', 1.0],
            ['1.1', 1.1],
            ['1e1', 10.0],
        ];
    }

    /**
     * @dataProvider invalidFloats
     */
    public function testGetEnvFloatInvalid($value)
    {
        $this->expectException('Symfony\Component\DependencyInjection\Exception\RuntimeException');
        $this->expectExceptionMessage('Non-numeric env var');
        $processor = new EnvVarProcessor(new Container());

        $processor->getEnv('float', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });
    }

    public function invalidFloats()
    {
        return [
            ['foo'],
            ['true'],
            ['null'],
        ];
    }

    /**
     * @dataProvider validConsts
     */
    public function testGetEnvConst($value, $processed)
    {
        $processor = new EnvVarProcessor(new Container());

        $result = $processor->getEnv('const', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });

        $this->assertSame($processed, $result);
    }

    public function validConsts()
    {
        return [
            ['Symfony\Component\DependencyInjection\Tests\EnvVarProcessorTest::TEST_CONST', self::TEST_CONST],
            ['E_ERROR', \E_ERROR],
        ];
    }

    /**
     * @dataProvider invalidConsts
     */
    public function testGetEnvConstInvalid($value)
    {
        $this->expectException('Symfony\Component\DependencyInjection\Exception\RuntimeException');
        $this->expectExceptionMessage('undefined constant');
        $processor = new EnvVarProcessor(new Container());

        $processor->getEnv('const', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return $value;
        });
    }

    public function invalidConsts()
    {
        return [
            ['Symfony\Component\DependencyInjection\Tests\EnvVarProcessorTest::UNDEFINED_CONST'],
            ['UNDEFINED_CONST'],
        ];
    }

    public function testGetEnvBase64()
    {
        $processor = new EnvVarProcessor(new Container());

        $result = $processor->getEnv('base64', 'foo', function ($name) {
            $this->assertSame('foo', $name);

            return base64_encode('hello');
        });

        $this->assertSame('hello', $result);
    }

    public function testGetEnvJson()
    {
        $processor = new EnvVarProcessor(new Container());

        $result = $processor->getEnv('json', 'foo', function ($name) {
            $this->assertSame('foo', $name);

            return json_encode([1]);
        });

        $this->assertSame([1], $result);
    }

    public function testGetEnvInvalidJson()
    {
        $this->expectException('Symfony\Component\DependencyInjection\Exception\RuntimeException');
        $this->expectExceptionMessage('Syntax error');
        $processor = new EnvVarProcessor(new Container());

        $processor->getEnv('json', 'foo', function ($name) {
            $this->assertSame('foo', $name);

            return 'invalid_json';
        });
    }

    /**
     * @dataProvider otherJsonValues
     */
    public function testGetEnvJsonOther($value)
    {
        $this->expectException('Symfony\Component\DependencyInjection\Exception\RuntimeException');
        $this->expectExceptionMessage('Invalid JSON env var');
        $processor = new EnvVarProcessor(new Container());

        $processor->getEnv('json', 'foo', function ($name) use ($value) {
            $this->assertSame('foo', $name);

            return json_encode($value);
        });
    }

    public function otherJsonValues()
    {
        return [
            [1],
            [1.1],
            [true],
            [false],
        ];
    }

    public function testGetEnvUnknown()
    {
        $this->expectException('Symfony\Component\DependencyInjection\Exception\RuntimeException');
        $this->expectExceptionMessage('Unsupported env var prefix');
        $processor = new EnvVarProcessor(new Container());

        $processor->getEnv('unknown', 'foo', function ($name) {
            $this->assertSame('foo', $name);

            return 'foo';
        });
    }
}