#!/usr/bin/env php
<?php

/**
 * Copyright (C) 2026 Moko Consulting <hello@mokoconsulting.tech>
 *
 * This file is part of a Moko Consulting project.
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * FILE INFORMATION
 * DEFGROUP: MokoStandards.Scripts.Validate
 * INGROUP: MokoStandards
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
 * PATH: /validate/check_enterprise_readiness.php
 * BRIEF: Enterprise readiness checker - PHP implementation
 */

declare(strict_types=1);

require_once __DIR__ . '/../../vendor/autoload.php';

use MokoEnterprise\{
    AuditLogger,
    CliFramework,
    SecurityValidator,
    PluginFactory,
    ProjectTypeDetector
};

/**
 * Enterprise Readiness Checker
 *
 * Validates repository against enterprise standards
 */
class EnterpriseReadinessChecker extends CliFramework
{
    private AuditLogger $logger;
    private SecurityValidator $securityValidator;
    private PluginFactory $pluginFactory;
    private ?object $projectPlugin = null;

    private array $results = [];

    protected function configure(): void
    {
        $this->setDescription('Check enterprise readiness compliance');
        $this->addArgument('--path', 'Repository path to check', '.');
        $this->addArgument('--strict', 'Fail on any non-compliance', false);
    }

    protected function initialize(): void
    {
        parent::initialize();

        $this->logger = new AuditLogger('enterprise_readiness');
        $this->securityValidator = new SecurityValidator();
        $metrics = new \MokoEnterprise\MetricsCollector();
        $this->pluginFactory = new PluginFactory($this->logger, $metrics);

        $this->log('Enterprise readiness checker initialized with plugin system');
    }

    protected function run(): int
    {
        $path = $this->getArgument('--path');
        $strict = $this->getArgument('--strict');

        $this->section('Initialising');
        $this->log("Checking enterprise readiness: {$path}");

        // Try to load the project plugin
        $this->projectPlugin = $this->pluginFactory->createForProject($path);

        if ($this->projectPlugin) {
            $pluginName = $this->projectPlugin->getPluginName();
            $projectType = $this->projectPlugin->getProjectType();
            $this->log("Using plugin: {$pluginName} for type: {$projectType}");

            // Use plugin's readiness check if available
            $pluginReadiness = $this->projectPlugin->checkReadiness($path, []);

            if (!empty($pluginReadiness)) {
                $this->log("Plugin readiness check: " . ($pluginReadiness['ready'] ? 'READY' : 'NOT READY'));
                $this->results['plugin_readiness'] = [
                    'passed' => $pluginReadiness['ready'],
                    'score' => $pluginReadiness['score'] ?? 0,
                    'blockers' => $pluginReadiness['blockers'] ?? [],
                    'warnings' => $pluginReadiness['warnings'] ?? [],
                ];
            }
        } else {
            $this->log("No plugin found, using generic readiness checks");
        }

        // Run standard enterprise checks (backwards compatible)
        $this->section('Enterprise libraries');
        $this->checkEnterpriseLibraries($path);
        $this->section('Monitoring & audit');
        $this->checkMonitoring($path);
        $this->checkAuditLogging($path);
        $this->section('Security compliance');
        $this->checkSecurityCompliance($path);
        $this->section('Documentation');
        $this->checkDocumentation($path);

        // Display results using visual API
        $this->section('Results');
        $passed = 0;
        $failed = 0;
        foreach ($this->results as $result) {
            $this->status($result['passed'], $result['check'], $result['passed'] ? '' : $result['message']);
            if ($result['passed']) {
                $passed++;
            } else {
                $failed++;
            }
        }

        $this->printSummary($passed, $failed, $this->elapsed());

        $failures = $failed;

        if ($strict && $failures > 0) {
            $this->error("Enterprise readiness check failed (strict mode): {$failures} issues found");
            return 1;
        }

        if ($failures > 0) {
            $this->warning("{$failures} enterprise readiness issues found");
        } else {
            $this->success('All enterprise readiness checks passed');
        }

        return 0;
    }

    private function checkEnterpriseLibraries(string $path): void
    {
        $required = ['ApiClient', 'AuditLogger', 'Config', 'ErrorRecovery', 'MetricsCollector'];

        // Enterprise libs may live in vendor/ (Composer install) or lib/Enterprise/ (MokoStandards itself).
        // A single vendor/ directory confirms the whole package is present — no need to check per-file.
        $vendorPkg = "{$path}/vendor/mokoconsulting-tech/enterprise";
        $inVendor  = is_dir($vendorPkg);

        foreach ($required as $library) {
            $localFile = "{$path}/lib/Enterprise/{$library}.php";
            $found     = $inVendor || file_exists($localFile);
            $this->addResult(
                "Enterprise library: {$library}",
                $found,
                "Missing enterprise library (not in vendor/mokoconsulting-tech/enterprise or lib/Enterprise/)"
            );
        }
    }

    private function checkMonitoring(string $path): void
    {
        // Check for metrics collection
        $metricsDir = "{$path}/var/logs/metrics";
        $this->addResult(
            'Metrics directory configured',
            is_dir($metricsDir) || !file_exists($path . '/composer.json'),
            'Metrics logging not configured'
        );

        // Check for monitoring documentation
        $monitoringDocs = "{$path}/docs/monitoring";
        $this->addResult(
            'Monitoring documentation exists',
            is_dir($monitoringDocs) || file_exists("{$path}/docs/monitoring.md"),
            'Monitoring documentation not found'
        );
    }

    private function checkAuditLogging(string $path): void
    {
        $auditDir = "{$path}/var/logs/audit";
        $this->addResult(
            'Audit logging directory configured',
            is_dir($auditDir) || !file_exists($path . '/composer.json'),
            'Audit logging not configured'
        );
    }

    private function checkSecurityCompliance(string $path): void
    {
        // Check for security policy
        $this->addResult(
            'Security policy exists',
            file_exists("{$path}/SECURITY.md") || file_exists("{$path}/.github/SECURITY.md"),
            'SECURITY.md not found'
        );

        // Check for CodeQL configuration
        $codeqlConfig = "{$path}/.github/codeql";
        $this->addResult(
            'CodeQL configured',
            is_dir($codeqlConfig) || file_exists("{$path}/.github/codeql/codeql-config.yml"),
            'CodeQL not configured'
        );

        // Run security scan on PHP files
        if (is_dir("{$path}/src")) {
            $this->securityValidator->scanDirectory("{$path}/src", ['.php']);
            $findings = $this->securityValidator->getFindings();
            $this->addResult(
                'No security vulnerabilities in source code',
                empty($findings),
                count($findings) . ' security issues found'
            );
        }
    }

    private function checkDocumentation(string $path): void
    {
        // Check for architecture documentation
        $this->addResult(
            'Architecture documentation exists',
            file_exists("{$path}/docs/architecture.md") ||
            file_exists("{$path}/docs/guide/architecture.md"),
            'Architecture documentation not found'
        );

        // Check for API documentation
        $this->addResult(
            'API documentation exists',
            file_exists("{$path}/docs/api.md") || is_dir("{$path}/docs/api"),
            'API documentation not found'
        );
    }

    private function addResult(string $check, bool $passed, string $message): void
    {
        $this->results[] = [
            'check' => $check,
            'passed' => $passed,
            'message' => $message,
        ];
    }

    private function displayResults(): void
    {
        // Results are now displayed directly in run() using visual API methods.
    }
}

// Run the application
$app = new EnterpriseReadinessChecker();
exit($app->execute());