<?php

declare(strict_types=1);

use App\Framework\HttpClient\Curl\Handle;
use App\Framework\HttpClient\Curl\HandleOption;
use App\Framework\HttpClient\Curl\Info;
use App\Framework\HttpClient\Curl\Pause;
use App\Framework\HttpClient\Curl\Exception\HandleException;

describe('Curl\Handle', function () {
    it('can be initialized without URL', function () {
        $handle = new Handle();

        expect($handle)->toBeInstanceOf(Handle::class);
        expect($handle->errorNumber)->toBe(0);
        expect($handle->errorMessage)->toBe('');
    });

    it('can be initialized with URL', function () {
        $handle = new Handle('https://httpbin.org/get');

        expect($handle)->toBeInstanceOf(Handle::class);
    });

    it('can fetch from URL', function () {
        $handle = new Handle('https://httpbin.org/get');
        $handle->setOption(HandleOption::Timeout, 10);

        $response = $handle->fetch();

        expect($response)->toBeString();
        expect($response)->toContain('"url"');
        expect($handle->getInfo(Info::ResponseCode))->toBe(200);
    });

    it('supports fluent API with method chaining', function () {
        $handle = new Handle();

        $result = $handle
            ->setOption(HandleOption::Url, 'https://httpbin.org/get')
            ->setOption(HandleOption::Timeout, 10);

        expect($result)->toBe($handle); // Same instance
        expect($handle->fetch())->toContain('"url"');
    });

    it('can set multiple options at once', function () {
        $handle = new Handle();

        $handle->setOptions([
            HandleOption::Url->value => 'https://httpbin.org/get',
            HandleOption::Timeout->value => 10,
            HandleOption::UserAgent->value => 'Test-Agent/1.0',
        ]);

        $response = $handle->fetch();

        expect($response)->toContain('Test-Agent/1.0');
    });

    it('validates option types - integer expected', function () {
        $handle = new Handle();

        expect(fn() => $handle->setOption(HandleOption::Timeout, 'invalid'))
            ->toThrow(HandleException::class, 'Invalid type for option Timeout: expected integer, got string');
    });

    it('validates option types - boolean expected', function () {
        $handle = new Handle();

        expect(fn() => $handle->setOption(HandleOption::FollowLocation, 'yes'))
            ->toThrow(HandleException::class, 'Invalid type for option FollowLocation: expected boolean, got string');
    });

    it('validates option types - string expected', function () {
        $handle = new Handle();

        expect(fn() => $handle->setOption(HandleOption::UserAgent, 123))
            ->toThrow(HandleException::class, 'Invalid type for option UserAgent: expected string, got int');
    });

    it('validates option types - array expected', function () {
        $handle = new Handle();

        expect(fn() => $handle->setOption(HandleOption::HttpHeader, 'not-an-array'))
            ->toThrow(HandleException::class, 'Invalid type for option HttpHeader: expected array, got string');
    });

    it('can get single info value', function () {
        $handle = new Handle('https://httpbin.org/get');
        $handle->setOption(HandleOption::Timeout, 10);

        $handle->fetch();

        expect($handle->getInfo(Info::ResponseCode))->toBe(200);
        expect($handle->getInfo(Info::EffectiveUrl))->toBe('https://httpbin.org/get');
        expect($handle->getInfo(Info::TotalTime))->toBeGreaterThan(0);
    });

    it('can get all info at once', function () {
        $handle = new Handle('https://httpbin.org/get');
        $handle->setOption(HandleOption::Timeout, 10);

        $handle->fetch();

        $allInfo = $handle->getInfo();

        expect($allInfo)->toBeArray();
        expect($allInfo)->toHaveKey('url');
        expect($allInfo)->toHaveKey('http_code');
        expect($allInfo)->toHaveKey('total_time');
    });

    it('throws on invalid URL', function () {
        $handle = new Handle('https://invalid-domain-that-does-not-exist-99999.com');
        $handle->setOption(HandleOption::Timeout, 5);

        $handle->fetch();
    })->throws(HandleException::class);

    it('updates error properties on failure', function () {
        $handle = new Handle('https://invalid-domain-that-does-not-exist-99999.com');
        $handle->setOption(HandleOption::Timeout, 5);

        try {
            $handle->fetch();
        } catch (HandleException $e) {
            expect($handle->errorNumber)->toBeGreaterThan(0);
            expect($handle->errorMessage)->not->toBeEmpty();
        }
    });

    it('can reset options', function () {
        $handle = new Handle('https://httpbin.org/get');
        $handle->setOption(HandleOption::UserAgent, 'Test-Agent/1.0');

        $handle->reset();

        // After reset, default options apply
        $handle->setOption(HandleOption::Url, 'https://httpbin.org/user-agent');
        $response = $handle->fetch();

        // Should not contain custom user agent after reset
        expect($response)->not->toContain('Test-Agent/1.0');
    });

    it('can URL-escape strings', function () {
        $handle = new Handle();

        $escaped = $handle->escapeUrl('hello world');

        expect($escaped)->toBe('hello%20world');
    });

    it('can URL-unescape strings', function () {
        $handle = new Handle();

        $unescaped = $handle->unescapeUrl('hello%20world');

        expect($unescaped)->toBe('hello world');
    });

    it('can execute with resource output', function () {
        $handle = new Handle('https://httpbin.org/get');
        $handle->setOption(HandleOption::Timeout, 10);

        $tempFile = tmpfile();
        $handle->execute($tempFile);

        fseek($tempFile, 0);
        $content = stream_get_contents($tempFile);
        fclose($tempFile);

        expect($content)->toContain('"url"');
    });

    it('can execute with callable output', function () {
        $handle = new Handle('https://httpbin.org/get');
        $handle->setOption(HandleOption::Timeout, 10);

        $receivedData = '';
        $callback = function ($ch, $data) use (&$receivedData) {
            $receivedData .= $data;
            return strlen($data);
        };

        $handle->execute($callback);

        expect($receivedData)->toContain('"url"');
    });

    it('throws on invalid output target', function () {
        $handle = new Handle('https://httpbin.org/get');

        expect(fn() => $handle->execute('invalid'))
            ->toThrow(HandleException::class, 'Invalid output target');
    });

    it('can perform POST request', function () {
        $handle = new Handle('https://httpbin.org/post');

        $data = ['name' => 'Test', 'email' => 'test@example.com'];

        $handle->setOptions([
            HandleOption::Post->value => true,
            HandleOption::PostFields->value => json_encode($data),
            HandleOption::HttpHeader->value => ['Content-Type: application/json'],
            HandleOption::Timeout->value => 10,
        ]);

        $response = $handle->fetch();

        expect($response)->toContain('"name": "Test"');
        expect($response)->toContain('"email": "test@example.com"');
    });

    it('can follow redirects', function () {
        $handle = new Handle('https://httpbin.org/redirect/2');

        $handle->setOptions([
            HandleOption::FollowLocation->value => true,
            HandleOption::MaxRedirs->value => 5,
            HandleOption::Timeout->value => 10,
        ]);

        $response = $handle->fetch();

        expect($handle->getInfo(Info::RedirectCount))->toBe(2);
        expect($handle->getInfo(Info::ResponseCode))->toBe(200);
    });

    it('respects timeout settings', function () {
        $handle = new Handle('https://httpbin.org/delay/10');
        $handle->setOption(HandleOption::Timeout, 2);

        expect(fn() => $handle->fetch())
            ->toThrow(HandleException::class);
    });

    it('can set custom headers', function () {
        $handle = new Handle('https://httpbin.org/headers');

        $handle->setOptions([
            HandleOption::HttpHeader->value => [
                'X-Custom-Header: test-value',
                'X-Another-Header: another-value',
            ],
            HandleOption::Timeout->value => 10,
        ]);

        $response = $handle->fetch();

        expect($response)->toContain('X-Custom-Header');
        expect($response)->toContain('test-value');
    });

    it('provides access to underlying resource', function () {
        $handle = new Handle();

        $resource = $handle->getResource();

        expect($resource)->toBeInstanceOf(CurlHandle::class);
    });

    it('error properties use asymmetric visibility', function () {
        $handle = new Handle('https://invalid-domain.com');

        // Can read
        expect($handle->errorNumber)->toBe(0);
        expect($handle->errorMessage)->toBe('');

        // Cannot write (would be compile error, so we just verify they're public readable)
        expect(property_exists($handle, 'errorNumber'))->toBeTrue();
        expect(property_exists($handle, 'errorMessage'))->toBeTrue();
    });

    it('can handle SSL verification', function () {
        $handle = new Handle('https://www.google.com');

        $handle->setOptions([
            HandleOption::SslVerifyPeer->value => true,
            HandleOption::SslVerifyHost->value => 2,
            HandleOption::Timeout->value => 10,
        ]);

        $response = $handle->fetch();

        expect($handle->getInfo(Info::ResponseCode))->toBe(200);
        expect($handle->getInfo(Info::SslVerifyResult))->toBe(0); // 0 = success
    });

    it('can disable SSL verification for testing', function () {
        $handle = new Handle('https://self-signed.badssl.com/');

        $handle->setOptions([
            HandleOption::SslVerifyPeer->value => false,
            HandleOption::SslVerifyHost->value => 0,
            HandleOption::Timeout->value => 10,
        ]);

        // Should not throw SSL error
        $response = $handle->fetch();

        expect($response)->toBeString();
    });
});

describe('Curl\HandleOption enum', function () {
    it('has getName() method', function () {
        expect(HandleOption::Timeout->getName())->toBe('Timeout');
        expect(HandleOption::UserAgent->getName())->toBe('UserAgent');
    });

    it('correctly identifies boolean options', function () {
        expect(HandleOption::FollowLocation->expectsBoolean())->toBeTrue();
        expect(HandleOption::SslVerifyPeer->expectsBoolean())->toBeTrue();
        expect(HandleOption::Timeout->expectsBoolean())->toBeFalse();
    });

    it('correctly identifies integer options', function () {
        expect(HandleOption::Timeout->expectsInteger())->toBeTrue();
        expect(HandleOption::MaxRedirs->expectsInteger())->toBeTrue();
        expect(HandleOption::UserAgent->expectsInteger())->toBeFalse();
    });

    it('correctly identifies string options', function () {
        expect(HandleOption::UserAgent->expectsString())->toBeTrue();
        expect(HandleOption::Url->expectsString())->toBeTrue();
        expect(HandleOption::Timeout->expectsString())->toBeFalse();
    });

    it('correctly identifies array options', function () {
        expect(HandleOption::HttpHeader->expectsArray())->toBeTrue();
        expect(HandleOption::Quote->expectsArray())->toBeTrue();
        expect(HandleOption::UserAgent->expectsArray())->toBeFalse();
    });

    it('correctly identifies callable options', function () {
        expect(HandleOption::WriteFunction->expectsCallable())->toBeTrue();
        expect(HandleOption::HeaderFunction->expectsCallable())->toBeTrue();
        expect(HandleOption::Timeout->expectsCallable())->toBeFalse();
    });

    it('correctly identifies resource options', function () {
        expect(HandleOption::File->expectsResource())->toBeTrue();
        expect(HandleOption::InFile->expectsResource())->toBeTrue();
        expect(HandleOption::UserAgent->expectsResource())->toBeFalse();
    });
});

describe('Curl\Info enum', function () {
    it('has all common info cases', function () {
        expect(Info::ResponseCode->value)->toBe(CURLINFO_RESPONSE_CODE);
        // Note: CURLINFO_HTTP_CODE is an alias for CURLINFO_RESPONSE_CODE
        expect(Info::TotalTime->value)->toBe(CURLINFO_TOTAL_TIME);
        expect(Info::EffectiveUrl->value)->toBe(CURLINFO_EFFECTIVE_URL);
    });
});

describe('Curl\Pause enum', function () {
    it('has all pause cases', function () {
        expect(Pause::Recv->value)->toBe(CURLPAUSE_RECV);
        expect(Pause::Send->value)->toBe(CURLPAUSE_SEND);
        expect(Pause::All->value)->toBe(CURLPAUSE_ALL);
        expect(Pause::Cont->value)->toBe(CURLPAUSE_CONT);
    });
});