<?php

declare(strict_types=1);

namespace Tests\Framework\Console;

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

describe('ArgumentDefinition', function () {
    it('creates required string argument', function () {
        $def = ArgumentDefinition::required('name', 'User name');

        expect($def->name)->toBe('name');
        expect($def->type)->toBe(ArgumentType::STRING);
        expect($def->required)->toBeTrue();
        expect($def->default)->toBeNull();
        expect($def->description)->toBe('User name');
    });

    it('creates optional string argument with default', function () {
        $def = ArgumentDefinition::optional('name', 'Guest', 'User name');

        expect($def->name)->toBe('name');
        expect($def->type)->toBe(ArgumentType::STRING);
        expect($def->required)->toBeFalse();
        expect($def->default)->toBe('Guest');
        expect($def->description)->toBe('User name');
    });

    it('creates boolean flag', function () {
        $def = ArgumentDefinition::flag('verbose', 'v', 'Enable verbose output');

        expect($def->name)->toBe('verbose');
        expect($def->type)->toBe(ArgumentType::BOOLEAN);
        expect($def->shortName)->toBe('v');
        expect($def->description)->toBe('Enable verbose output');
    });

    it('creates email argument', function () {
        $def = ArgumentDefinition::email('email', required: true, description: 'User email');

        expect($def->name)->toBe('email');
        expect($def->type)->toBe(ArgumentType::EMAIL);
        expect($def->required)->toBeTrue();
        expect($def->description)->toBe('User email');
    });

    it('creates integer argument', function () {
        $def = ArgumentDefinition::integer('count', required: false, default: 10, description: 'Item count');

        expect($def->name)->toBe('count');
        expect($def->type)->toBe(ArgumentType::INTEGER);
        expect($def->required)->toBeFalse();
        expect($def->default)->toBe(10);
        expect($def->description)->toBe('Item count');
    });

    it('creates choice argument', function () {
        $def = ArgumentDefinition::choice('mode', ['dev', 'prod', 'test'], required: false, default: 'dev');

        expect($def->name)->toBe('mode');
        expect($def->type)->toBe(ArgumentType::STRING);
        expect($def->allowedValues)->toBe(['dev', 'prod', 'test']);
        expect($def->default)->toBe('dev');
    });

    it('throws exception for empty name', function () {
        expect(fn () => new ArgumentDefinition('', ArgumentType::STRING))
            ->toThrow(\InvalidArgumentException::class, 'Argument name cannot be empty');
    });

    it('throws exception for invalid short name length', function () {
        expect(fn () => new ArgumentDefinition('name', ArgumentType::STRING, shortName: 'ab'))
            ->toThrow(\InvalidArgumentException::class, 'Short name must be exactly one character');
    });

    it('throws exception when required argument has default', function () {
        expect(fn () => new ArgumentDefinition('name', ArgumentType::STRING, required: true, default: 'Guest'))
            ->toThrow(\InvalidArgumentException::class, 'Required arguments cannot have default values');
    });

    it('throws exception when boolean argument has allowed values', function () {
        expect(fn () => new ArgumentDefinition('flag', ArgumentType::BOOLEAN, allowedValues: ['true', 'false']))
            ->toThrow(\InvalidArgumentException::class, 'Boolean arguments cannot have allowed values');
    });

    it('gets display name with short name', function () {
        $def = ArgumentDefinition::flag('verbose', 'v');

        expect($def->getDisplayName())->toBe('v, verbose');
    });

    it('gets display name without short name', function () {
        $def = ArgumentDefinition::required('name');

        expect($def->getDisplayName())->toBe('name');
    });

    it('gets usage text for boolean flag', function () {
        $def = ArgumentDefinition::flag('verbose', 'v');

        expect($def->getUsageText())->toBe('[--verbose]');
    });

    it('gets usage text for required boolean flag', function () {
        $def = new ArgumentDefinition('verbose', ArgumentType::BOOLEAN, required: true);

        expect($def->getUsageText())->toBe('--verbose');
    });

    it('gets usage text for optional boolean flag', function () {
        $def = ArgumentDefinition::flag('verbose', 'v');

        expect($def->getUsageText())->toBe('[--verbose]');
    });

    it('gets usage text for required string argument', function () {
        $def = ArgumentDefinition::required('name');

        expect($def->getUsageText())->toContain('--name');
        expect($def->getUsageText())->toContain('<');
    });

    it('gets usage text for optional string argument', function () {
        $def = ArgumentDefinition::optional('name', 'Guest');

        expect($def->getUsageText())->toContain('--name');
        expect($def->getUsageText())->toContain('[');
    });

    it('gets usage text with allowed values', function () {
        $def = ArgumentDefinition::choice('mode', ['dev', 'prod']);

        expect($def->getUsageText())->toContain('dev|prod');
    });

    it('validates required value', function () {
        $def = ArgumentDefinition::required('name');

        expect(fn () => $def->validateValue(null))
            ->toThrow(\InvalidArgumentException::class, "Required argument 'name' is missing");
    });

    it('validates allowed values', function () {
        $def = ArgumentDefinition::choice('mode', ['dev', 'prod', 'test']);

        // Should not throw for valid value
        $def->validateValue('dev');
        expect(true)->toBeTrue();
    });

    it('throws exception for invalid allowed value', function () {
        $def = ArgumentDefinition::choice('mode', ['dev', 'prod', 'test']);

        expect(fn () => $def->validateValue('invalid'))
            ->toThrow(\InvalidArgumentException::class, "Invalid value 'invalid'");
    });

    it('allows empty value for optional argument', function () {
        $def = ArgumentDefinition::optional('name', 'Guest');

        // Should not throw
        $def->validateValue(null);
        $def->validateValue('');
        expect(true)->toBeTrue();
    });

    it('validates value with default', function () {
        $def = ArgumentDefinition::optional('name', 'Guest');

        // Should not throw
        $def->validateValue('John');
        expect(true)->toBeTrue();
    });

    it('creates argument with all properties', function () {
        $def = new ArgumentDefinition(
            name: 'test',
            type: ArgumentType::INTEGER,
            required: false,
            default: 42,
            description: 'Test description',
            shortName: 't',
            allowedValues: []
        );

        expect($def->name)->toBe('test');
        expect($def->type)->toBe(ArgumentType::INTEGER);
        expect($def->required)->toBeFalse();
        expect($def->default)->toBe(42);
        expect($def->description)->toBe('Test description');
        expect($def->shortName)->toBe('t');
    });
});