<?php

declare(strict_types=1);

namespace App\Framework\Console\Commands;

use App\Framework\Console\CommandGroup;
use App\Framework\Console\ConsoleColor;
use App\Framework\Console\ConsoleCommand;
use App\Framework\Console\ConsoleInput;
use App\Framework\Console\ConsoleOutputInterface;
use App\Framework\Console\ExitCode;
use App\Framework\Filesystem\FileScanner;
use App\Framework\Filesystem\ValueObjects\FilePath;
use App\Framework\Logging\Logger;
use App\Framework\Quality\CodeQuality\CodeQualityScanner;
use App\Framework\Quality\CodeQuality\Results\CodeQualityReport;
use App\Framework\Quality\CodeQuality\Rules\DisallowInheritanceRule;
use App\Framework\Quality\CodeQuality\Rules\FinalClassRule;
use App\Framework\Quality\CodeQuality\Rules\ReadonlyGetterRule;
use App\Framework\Quality\CodeQuality\Rules\ReadonlyPropertyRule;
use App\Framework\Quality\CodeQuality\Rules\RequireStringableImplementationRule;
use App\Framework\Reflection\ReflectionService;

#[CommandGroup(
    name: 'Quality',
    description: 'Code quality inspections and automated rule checks',
    icon: '🧹',
    priority: 80
)]
final readonly class CodeQualityScanCommand
{
    private CodeQualityScanner $scanner;

    public function __construct(
        FileScanner $fileScanner,
        ReflectionService $reflectionService,
        ?Logger $logger = null
    ) {
        $this->scanner = new CodeQualityScanner(
            $fileScanner,
            $reflectionService,
            [
                new RequireStringableImplementationRule(),
                new FinalClassRule(),
                new ReadonlyPropertyRule(),
                new ReadonlyGetterRule(),
                new DisallowInheritanceRule(),
            ],
            $logger
        );
    }

    #[ConsoleCommand('quality:scan', 'Check framework classes against predefined rules')]
    public function scan(ConsoleInput $input, ConsoleOutputInterface $output): ExitCode
    {
        $pathArgument = $input->getArgument(0);
        $directory = $pathArgument !== null
            ? FilePath::create($pathArgument)
            : FilePath::create(getcwd() . '/src');

        $skipErrors = $input->hasOption('skip-errors');

        if (! $directory->exists() || ! $directory->isDirectory()) {
            $output->writeLine(
                sprintf('❌ Directory "%s" does not exist or is not a directory.', $directory->toString()),
                ConsoleColor::RED
            );

            return ExitCode::INVALID_INPUT;
        }

        $output->writeLine(
            sprintf('🔍 Scanning %s for code quality violations...', $directory->toString()),
            ConsoleColor::BRIGHT_CYAN
        );

        $report = $this->scanner->scan($directory, $skipErrors);

        if ($report->hasErrors()) {
            $output->newLine();
            $headerColor = $skipErrors ? ConsoleColor::YELLOW : ConsoleColor::BRIGHT_RED;
            $headerIcon = $skipErrors ? '⚠️' : '❌';
            $output->writeLine(
                sprintf(
                    '%s Encountered %d file/class error(s) while scanning.',
                    $headerIcon,
                    count($report->errors())
                ),
                $headerColor
            );

            foreach ($report->errors() as $error) {
                $output->writeLine('  • ' . $error, $headerColor);
            }

            if (! $skipErrors) {
                return ExitCode::FAILURE;
            }
        }

        $this->renderReport($report, $output);

        return $report->hasViolations() ? ExitCode::FAILURE : ExitCode::SUCCESS;
    }

    private function renderReport(CodeQualityReport $report, ConsoleOutputInterface $output): void
    {
        $output->newLine();

        $summaryColor = $report->hasViolations() ? ConsoleColor::BRIGHT_RED : ConsoleColor::GREEN;
        $summaryIcon = $report->hasViolations() ? '❌' : '✅';
        $summaryMessage = $report->hasViolations()
            ? sprintf('Found %d violation(s).', $report->countViolations())
            : 'No violations found.';

        $output->writeLine(
            sprintf(
                '%s %s Scanned %d files, %d classes in %.2fs',
                $summaryIcon,
                $summaryMessage,
                $report->inspectedFiles(),
                $report->inspectedClasses(),
                $report->durationSeconds()
            ),
            $summaryColor
        );

        if (! $report->hasViolations()) {
            return;
        }

        $output->newLine();

        foreach ($report->groupedByRule() as $ruleName => $violations) {
            $output->writeLine(
                sprintf('%s (%d)', $ruleName, count($violations)),
                ConsoleColor::BRIGHT_YELLOW
            );

            foreach ($violations as $violation) {
                $lineInfo = $violation->line() !== null ? ':' . $violation->line() : '';

                $output->writeLine(
                    sprintf(
                        '  • %s',
                        $violation->className()->getFullyQualified()
                    ),
                    ConsoleColor::WHITE
                );

                $output->writeLine(
                    sprintf(
                        '    ↳ %s%s',
                        $violation->filePath()->toString(),
                        $lineInfo
                    ),
                    ConsoleColor::GRAY
                );

                $output->writeLine(
                    sprintf('    %s', $violation->message()),
                    ConsoleColor::BRIGHT_RED
                );

                $output->newLine();
            }
        }
    }
}