#!/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.Maintenance
 * INGROUP: MokoStandards
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
 * PATH: /maintenance/update_repo_inventory.php
 * BRIEF: Queries GitHub org repos and rewrites the auto-generated section of REPOSITORY_INVENTORY.md
 */

declare(strict_types=1);

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

use MokoEnterprise\CliFramework;
use MokoEnterprise\Config;
use MokoEnterprise\GitPlatformAdapter;
use MokoEnterprise\PlatformAdapterFactory;

/**
 * Queries the git platform API for all repositories in the organisation and
 * rewrites the auto-generated inventory table inside
 * docs/reference/REPOSITORY_INVENTORY.md between the markers:
 *
 *   <!-- INVENTORY_TABLE_START -->
 *   <!-- INVENTORY_TABLE_END -->
 *
 * Everything outside those markers is left untouched.
 */
class UpdateRepoInventory extends CliFramework
{
	private ?GitPlatformAdapter $adapter = null;

	/** Marker that begins the auto-generated block. */
	private const MARKER_START = '<!-- INVENTORY_TABLE_START -->';

	/** Marker that ends the auto-generated block. */
	private const MARKER_END = '<!-- INVENTORY_TABLE_END -->';

	/** Path to the Dolibarr module registry relative to repo root. */
	private const REGISTRY_PATH = 'docs/development/crm/module-registry.md';

	/** Path to the inventory file relative to repo root. */
	private const INVENTORY_PATH = 'docs/reference/REPOSITORY_INVENTORY.md';

	protected function configure(): void
	{
		$this->setDescription('Updates docs/reference/REPOSITORY_INVENTORY.md with current org repo list');
		$this->addArgument('--org', 'Organisation to query', 'mokoconsulting-tech');
		$this->addArgument('--path', 'Repository root path', '.');
	}

	protected function run(): int
	{
		$root  = rtrim((string) $this->getArgument('--path'), '/\\');

		$config = Config::load();
		try {
			$this->adapter = PlatformAdapterFactory::create($config);
		} catch (\RuntimeException $e) {
			$this->status(false, 'auth', $e->getMessage());
			return 2;
		}

		$orgArg = (string) $this->getArgument('--org');
		$org    = $orgArg ?: $config->getString($this->adapter->getPlatformName() . '.organization', 'mokoconsulting-tech');

		// ── 1. Fetch repositories ─────────────────────────────────────────────
		$this->section("Fetching repositories for {$org} ({$this->adapter->getPlatformName()})");

		$repos = $this->fetchAllRepos($org);
		if ($repos === null) {
			return 1;
		}

		$this->status(true, 'API', sprintf('Fetched %d repositories', count($repos)));

		// ── 2. Load Dolibarr module registry ──────────────────────────────────
		$this->section('Loading Dolibarr module registry');

		$moduleMap = $this->parseModuleRegistry($root . '/' . self::REGISTRY_PATH);
		$this->status(true, 'registry', sprintf('Loaded %d module ID entries', count($moduleMap)));

		// ── 3. Build the Markdown tables ──────────────────────────────────────
		$this->section('Building inventory tables');

		$table = $this->buildTables($repos, $moduleMap, $org);

		// ── 4. Rewrite the inventory file ────────────────────────────────────
		$this->section('Updating ' . self::INVENTORY_PATH);

		$inventoryPath = $root . '/' . self::INVENTORY_PATH;
		if (!is_file($inventoryPath)) {
			$this->status(false, self::INVENTORY_PATH, 'file not found');
			return 2;
		}

		$original = (string) file_get_contents($inventoryPath);
		$updated  = $this->replaceSection($original, $table);

		if ($original === $updated) {
			$this->status(true, self::INVENTORY_PATH, 'no changes needed');
		} elseif (!$this->isDryRun()) {
			file_put_contents($inventoryPath, $updated);
			$this->status(true, self::INVENTORY_PATH, 'updated');
		} else {
			$this->status(true, self::INVENTORY_PATH, '[dry-run] would update');
		}

		$this->printSummary(1, 0, $this->elapsed());

		return 0;
	}

	// ── Platform API ──────────────────────────────────────────────────────────

	/**
	 * Fetch all repositories for the org via the platform adapter.
	 *
	 * @return list<array<string,mixed>>|null  Null on API error.
	 */
	private function fetchAllRepos(string $org): ?array
	{
		try {
			// Use the adapter's paginated listing — returns full repo objects
			$repos = $this->adapter->paginateAll("/orgs/{$org}/repos", ['type' => 'all']);
			$this->progress(count($repos), count($repos), '', true);
			return $repos;
		} catch (\Exception $e) {
			$this->status(false, 'API', $e->getMessage());
			return null;
		}
	}

	// ── Module registry ───────────────────────────────────────────────────────

	/**
	 * Parse the Dolibarr module registry Markdown table.
	 *
	 * @return array<string,int>  Map of lower-case repo name → module number.
	 */
	private function parseModuleRegistry(string $path): array
	{
		if (!is_file($path)) {
			$this->warning("Module registry not found: {$path}");
			return [];
		}

		$map     = [];
		$content = (string) file_get_contents($path);

		// Match table rows: | ModuleName | 185051 | Status | … |
		preg_match_all('/^\|\s*(\w+)\s*\|\s*(\d{6})\s*\|/m', $content, $matches, PREG_SET_ORDER);

		foreach ($matches as $match) {
			$id = (int) $match[2];
			if ($id >= 100000) {
				$map[strtolower($match[1])] = $id;
			}
		}

		return $map;
	}

	// ── Table builder ─────────────────────────────────────────────────────────

	/**
	 * Build the full Markdown replacement for the inventory tables.
	 *
	 * @param list<array<string,mixed>> $repos
	 * @param array<string,int>         $moduleMap
	 */
	private function buildTables(array $repos, array $moduleMap, string $org): string
	{
		// Sort: active first, then archived; within each group alphabetically.
		usort($repos, static function (array $a, array $b): int {
			$aArch = (bool) ($a['archived'] ?? false);
			$bArch = (bool) ($b['archived'] ?? false);
			if ($aArch !== $bArch) {
				return $aArch ? 1 : -1;
			}
			return strcasecmp((string) ($a['name'] ?? ''), (string) ($b['name'] ?? ''));
		});

		/** @var array<string,list<array<string,mixed>>> $groups */
		$groups = ['core' => [], 'product' => [], 'extension' => [], 'template' => [], 'internal' => [], 'archived' => []];

		foreach ($repos as $repo) {
			$name     = (string) ($repo['name'] ?? '');
			$topics   = array_map('strtolower', (array) ($repo['topics'] ?? []));
			$archived = (bool) ($repo['archived'] ?? false);

			if ($archived) {
				$groups['archived'][] = $repo;
				continue;
			}

			$lower = strtolower($name);

			if (in_array('mokostandards-core', $topics, true) || $name === 'MokoStandards' || $name === '.github-private') {
				$groups['core'][] = $repo;
			} elseif (
				in_array('dolibarr-module', $topics, true)
				|| str_starts_with($lower, 'mokodoli')
				|| (str_starts_with($lower, 'mokocrm') && $lower !== 'mokocrmtheme')
			) {
				$groups['extension'][] = $repo;
			} elseif (in_array('product', $topics, true) || in_array('platform', $topics, true)) {
				$groups['product'][] = $repo;
			} elseif (in_array('template', $topics, true) || str_contains($lower, 'template')) {
				$groups['template'][] = $repo;
			} else {
				$groups['internal'][] = $repo;
			}
		}

		$updated = (new \DateTimeImmutable('now', new \DateTimeZone('UTC')))->format('Y-m-d H:i:s T');
		$lines   = [
			"> ⚙️ **Auto-generated** by `update_repo_inventory.php` — last updated {$updated}.",
			'> Do not edit this section manually; it is overwritten on every bulk sync.',
			'',
		];

		$groupLabels = [
			'core'      => 'Core Repositories',
			'product'   => 'Product Repositories',
			'extension' => 'Extension Repositories (Dolibarr / CRM)',
			'template'  => 'Template Repositories',
			'internal'  => 'Internal and Testing',
			'archived'  => 'Archived Repositories',
		];

		foreach ($groupLabels as $key => $label) {
			if (empty($groups[$key])) {
				continue;
			}

			$lines[] = "### {$label}";
			$lines[] = '';
			$isExt   = ($key === 'extension');

			if ($isExt) {
				$lines[] = '| Repository | Status | Description | Module ID | Language | Visibility |';
				$lines[] = '|------------|--------|-------------|-----------|----------|------------|';
			} else {
				$lines[] = '| Repository | Status | Description | Language | Visibility |';
				$lines[] = '|------------|--------|-------------|----------|------------|';
			}

			foreach ($groups[$key] as $repo) {
				$name     = (string) ($repo['name'] ?? '');
				$desc     = str_replace('|', '\\|', (string) ($repo['description'] ?? ''));
				$url      = (string) ($repo['html_url'] ?? "https://github.com/{$org}/{$name}");
				$lang     = (string) ($repo['language'] ?? '—');
				$private  = (bool) ($repo['private'] ?? false);
				$archived = (bool) ($repo['archived'] ?? false);
				$status   = $archived ? '🗄 Archived' : '✅ Active';
				$vis      = $private ? 'Private' : 'Public';
				$modId    = $moduleMap[strtolower($name)] ?? null;
				$modCell  = $modId !== null ? (string) $modId : '—';

				if ($isExt) {
					$lines[] = "| [{$name}]({$url}) | {$status} | {$desc} | {$modCell} | {$lang} | {$vis} |";
				} else {
					$lines[] = "| [{$name}]({$url}) | {$status} | {$desc} | {$lang} | {$vis} |";
				}
			}

			$lines[] = '';
		}

		return implode("\n", $lines);
	}

	// ── File rewriter ─────────────────────────────────────────────────────────

	/**
	 * Replace content between the start/end markers in the inventory file.
	 * If markers are absent, appends a new section at the end.
	 */
	private function replaceSection(string $original, string $newContent): string
	{
		$startPos = strpos($original, self::MARKER_START);
		$endPos   = strpos($original, self::MARKER_END);

		if ($startPos === false || $endPos === false) {
			$this->warning('Inventory markers not found; appending section to end of file.');
			return $original
				. "\n\n## Active Repositories\n\n"
				. self::MARKER_START . "\n"
				. $newContent . "\n"
				. self::MARKER_END . "\n";
		}

		$before = substr($original, 0, $startPos + strlen(self::MARKER_START));
		$after  = substr($original, $endPos);

		return $before . "\n" . $newContent . "\n" . $after;
	}
}

$script = new UpdateRepoInventory('update_repo_inventory', 'Updates the repository inventory documentation after sync');
exit($script->execute());