#!/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_structure.php
 * BRIEF: Validates required repository directory and file structure
 */

declare(strict_types=1);

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

use MokoEnterprise\CliFramework;

/**
 * Validates that the required directories and files exist in the repository root.
 */
class CheckStructure extends CliFramework
{
    /** @var list<string>  Required directory paths (relative to repo root). */
    /** @var list<string>  Required directory paths — at least one workflow dir must exist. */
    private const REQUIRED_DIRS = ['docs', 'scripts'];

    /** @var list<string>  At least one of these workflow directories must exist. */
    private const WORKFLOW_DIRS = ['.github/workflows', '.mokogitea/workflows'];

    /** @var list<string>  Required file paths (relative to repo root). */
    private const REQUIRED_FILES = ['README.md', 'LICENSE', 'CONTRIBUTING.md', 'SECURITY.md'];

    /** Directories searched for CHANGELOG.md (case-insensitive), relative to repo root. */
    private const CHANGELOG_DIRS = ['', 'src', 'docs'];

    /**
     * Configure available arguments.
     */
    protected function configure(): void
    {
        $this->setDescription('Validates required repository directory and file structure');
        $this->addArgument('--path', 'Repository path to check', '.');
    }

    /**
     * Run the structure validation.
     *
     * @return int  Exit code: 0 if everything is present, 1 if anything is missing.
     */
    protected function run(): int
    {
        $path         = $this->getArgument('--path');
        $missingDirs  = [];
        $missingFiles = [];
        $passed       = 0;
        $failed       = 0;

        $this->section('Checking required directories');

        foreach (self::REQUIRED_DIRS as $dir) {
            if (!is_dir($path . '/' . $dir)) {
                $missingDirs[] = $dir;
                $this->status(false, "Directory: {$dir}");
                $failed++;
            } else {
                $this->status(true, "Directory: {$dir}");
                $passed++;
            }
        }

        // At least one workflow directory must exist
        $hasWorkflowDir = false;
        foreach (self::WORKFLOW_DIRS as $wfDir) {
            if (is_dir($path . '/' . $wfDir)) {
                $hasWorkflowDir = true;
                $this->status(true, "Directory: {$wfDir}");
                $passed++;
                break;
            }
        }
        if (!$hasWorkflowDir) {
            $missingDirs[] = implode(' or ', self::WORKFLOW_DIRS);
            $this->status(false, 'Directory: ' . implode(' or ', self::WORKFLOW_DIRS));
            $failed++;
        }

        $this->section('Checking required files');

        foreach (self::REQUIRED_FILES as $file) {
            if (!is_file($path . '/' . $file)) {
                $missingFiles[] = $file;
                $this->status(false, "File: {$file}");
                $failed++;
            } else {
                $this->status(true, "File: {$file}");
                $passed++;
            }
        }

        // CHANGELOG.md — accepted at root, src/, or docs/ (case-insensitive)
        $changelogFound = null;
        foreach (self::CHANGELOG_DIRS as $sub) {
            $dir     = $sub === '' ? $path : $path . '/' . $sub;
            $entries = is_dir($dir) ? (@scandir($dir) ?: []) : [];
            foreach ($entries as $entry) {
                if (strcasecmp($entry, 'CHANGELOG.md') === 0 && is_file($dir . '/' . $entry)) {
                    $changelogFound = ($sub === '' ? '' : $sub . '/') . $entry;
                    break 2;
                }
            }
        }

        if ($changelogFound !== null) {
            $this->status(true, "File: CHANGELOG.md (found: {$changelogFound})");
            $passed++;
        } else {
            $missingFiles[] = 'CHANGELOG.md';
            $this->status(false, 'File: CHANGELOG.md (checked root, src/, docs/)');
            $failed++;
        }

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

        if (empty($missingDirs) && empty($missingFiles)) {
            return 0;
        }

        return 1;
    }
}

$script = new CheckStructure('check_structure', 'Validates required repository directory and file structure');
exit($script->execute());