<?php

declare(strict_types=1);

namespace Tests\Framework\Console;

use App\Framework\Console\ArgumentDefinition;
use App\Framework\Console\ArgumentParser;
use App\Framework\Console\ArgumentParserBuilder;
use App\Framework\Console\ArgumentType;

describe('ArgumentParser', function () {
    it('parses simple positional arguments', function () {
        $parser = new ArgumentParser();
        $parsed = $parser->parse(['arg1', 'arg2']);

        expect($parsed->getAllArguments())->toBeArray();
    });

    it('parses long options with equals sign', function () {
        $parser = ArgumentParser::create()
            ->optionalString('name')
            ->build();

        $parsed = $parser->parse(['--name=John']);

        expect($parsed->get('name'))->toBe('John');
    });

    it('parses long options with space', function () {
        $parser = ArgumentParser::create()
            ->optionalString('name')
            ->build();

        $parsed = $parser->parse(['--name', 'John']);

        expect($parsed->get('name'))->toBe('John');
    });

    it('parses boolean flags', function () {
        $parser = ArgumentParser::create()
            ->flag('verbose', 'v')
            ->build();

        $parsed = $parser->parse(['--verbose']);

        expect($parsed->getBool('verbose'))->toBeTrue();
    });

    it('parses short options', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('name', ArgumentType::STRING, shortName: 'n'))
            ->build();

        $parsed = $parser->parse(['-n', 'John']);

        expect($parsed->get('name'))->toBe('John');
    });

    it('parses combined short flags', function () {
        $parser = ArgumentParser::create()
            ->flag('verbose', 'v')
            ->flag('force', 'f')
            ->build();

        $parsed = $parser->parse(['-vf']);

        expect($parsed->getBool('verbose'))->toBeTrue();
        expect($parsed->getBool('force'))->toBeTrue();
    });

    it('converts kebab-case to camelCase', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('dryRun', ArgumentType::BOOLEAN))
            ->optionalString('outputFile')
            ->build();

        $parsed = $parser->parse(['--dry-run', '--output-file=test.txt']);

        expect($parsed->getBool('dryRun'))->toBeTrue();
        expect($parsed->get('outputFile'))->toBe('test.txt');
    });

    it('validates required arguments', function () {
        $parser = ArgumentParser::create()
            ->requiredString('name')
            ->build();

        expect(fn () => $parser->parse([]))
            ->toThrow(\InvalidArgumentException::class, "Required argument 'name' is missing");
    });

    it('applies default values for optional arguments', function () {
        $parser = ArgumentParser::create()
            ->optionalString('name', 'Guest')
            ->build();

        $parsed = $parser->parse([]);

        expect($parsed->get('name'))->toBe('Guest');
    });

    it('parses integer values', function () {
        $parser = ArgumentParser::create()
            ->integer('count')
            ->build();

        $parsed = $parser->parse(['--count=42']);

        expect($parsed->getInt('count'))->toBe(42);
    });

    it('validates integer values', function () {
        $parser = ArgumentParser::create()
            ->integer('count')
            ->build();

        expect(fn () => $parser->parse(['--count=not-a-number']))
            ->toThrow(\InvalidArgumentException::class, 'not a valid integer');
    });

    it('parses float values', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('price', ArgumentType::FLOAT))
            ->build();

        $parsed = $parser->parse(['--price=12.34']);

        expect($parsed->getFloat('price'))->toBe(12.34);
    });

    it('parses boolean values', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('active', ArgumentType::BOOLEAN))
            ->build();

        $parsed = $parser->parse(['--active=true']);

        expect($parsed->getBool('active'))->toBeTrue();
    });

    it('parses array values from comma-separated string', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('items', ArgumentType::ARRAY))
            ->build();

        $parsed = $parser->parse(['--items=item1,item2,item3']);

        expect($parsed->getArray('items'))->toBe(['item1', 'item2', 'item3']);
    });

    it('validates email addresses', function () {
        $parser = ArgumentParser::create()
            ->email('email')
            ->build();

        $parsed = $parser->parse(['--email=user@example.com']);

        expect($parsed->get('email'))->toBe('user@example.com');
    });

    it('throws exception for invalid email', function () {
        $parser = ArgumentParser::create()
            ->email('email')
            ->build();

        expect(fn () => $parser->parse(['--email=invalid-email']))
            ->toThrow(\InvalidArgumentException::class, 'not a valid email address');
    });

    it('validates URL addresses', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('url', ArgumentType::URL))
            ->build();

        $parsed = $parser->parse(['--url=https://example.com']);

        expect($parsed->get('url'))->toBe('https://example.com');
    });

    it('throws exception for invalid URL', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('url', ArgumentType::URL))
            ->build();

        expect(fn () => $parser->parse(['--url=not-a-url']))
            ->toThrow(\InvalidArgumentException::class, 'not a valid URL');
    });

    it('validates allowed values', function () {
        $parser = ArgumentParser::create()
            ->choice('mode', ['dev', 'prod', 'test'])
            ->build();

        $parsed = $parser->parse(['--mode=dev']);

        expect($parsed->get('mode'))->toBe('dev');
    });

    it('throws exception for invalid choice value', function () {
        $parser = ArgumentParser::create()
            ->choice('mode', ['dev', 'prod', 'test'])
            ->build();

        expect(fn () => $parser->parse(['--mode=invalid']))
            ->toThrow(\InvalidArgumentException::class, "Invalid value 'invalid'");
    });

    it('handles positional arguments', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('name', ArgumentType::STRING))
            ->addArgument(new ArgumentDefinition('age', ArgumentType::INTEGER))
            ->build();

        $parsed = $parser->parse(['John', '25']);

        expect($parsed->get('name'))->toBe('John');
        expect($parsed->getInt('age'))->toBe(25);
    });

    it('throws exception when required option value is missing', function () {
        $parser = ArgumentParser::create()
            ->requiredString('name')
            ->build();

        expect(fn () => $parser->parse(['--name']))
            ->toThrow(\InvalidArgumentException::class, "Option '--name' requires a value");
    });

    it('handles optional boolean flags without value', function () {
        $parser = ArgumentParser::create()
            ->flag('verbose', 'v')
            ->build();

        $parsed = $parser->parse(['--verbose']);

        expect($parsed->getBool('verbose'))->toBeTrue();
    });

    it('prevents combining short options that require values', function () {
        $parser = ArgumentParser::create()
            ->addArgument(new ArgumentDefinition('name', ArgumentType::STRING, shortName: 'n'))
            ->flag('verbose', 'v')
            ->build();

        expect(fn () => $parser->parse(['-nv']))
            ->toThrow(\InvalidArgumentException::class, "requires a value and cannot be combined");
    });

    it('returns all definitions', function () {
        $parser = ArgumentParser::create()
            ->optionalString('name')
            ->flag('verbose', 'v')
            ->build();

        $definitions = $parser->getDefinitions();

        expect($definitions)->toHaveKey('name');
        expect($definitions)->toHaveKey('verbose');
    });
});

describe('ArgumentParserBuilder', function () {
    it('creates parser with fluent interface', function () {
        $parser = ArgumentParser::create()
            ->requiredString('name')
            ->build();

        expect($parser)->toBeInstanceOf(ArgumentParser::class);
    });

    it('supports all argument definition factory methods', function () {
        $parser = ArgumentParser::create()
            ->requiredString('arg1')
            ->optionalString('opt1')
            ->flag('flag1', 'f')
            ->choice('choice1', ['a', 'b', 'c'])
            ->build();

        expect($parser)->toBeInstanceOf(ArgumentParser::class);
    });
});