#!/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: MokoPlatform.Release
 * INGROUP: MokoPlatform.Scripts
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/mokocli
 * PATH: /release/generate_dolibarr_version_txt.php
 * BRIEF: Create or update version.txt on Dolibarr module release
 *
 * Dolibarr Update Server helper.  On each release it:
 *   1. Creates or overwrites version.txt at the repo root with just the
 *      bare version string (e.g. "1.4.2") — no whitespace, under 30 chars.
 *   2. Optionally injects / refreshes the $this->url_last_version property
 *      in the Dolibarr module descriptor class (--inject-urlversion).
 *
 * Dolibarr's DolibarrModules::checkForUpdate() fetches the URL stored in
 * $this->url_last_version and compares the plain-text response to the
 * installed version.  The response MUST be:
 *   - Under 30 characters total
 *   - Only alphanumeric chars, dots, dashes, underscores (others stripped)
 *   - No newline or trailing whitespace
 *
 * Runs in two modes:
 *   Local  — reads/writes version.txt on disk (GitHub Actions release workflow).
 *   Remote — reads/commits version.txt via GitHub API.
 *
 * Usage (local):
 *   php generate_dolibarr_version_txt.php \
 *       --tag=v1.2.0 \
 *       [--output=./version.txt] \
 *       [--inject-urlversion]
 *
 * Usage (remote):
 *   php generate_dolibarr_version_txt.php \
 *       --repo=mokoconsulting-tech/MyModule \
 *       --tag=v1.2.0 \
 *       [--inject-urlversion]
 */

declare(strict_types=1);

require_once __DIR__ . '/../vendor/autoload.php';
require_once __DIR__ . '/../lib/Enterprise/CliFramework.php';

use MokoCli\CliFramework;
use MokoCli\{ApiClient, AuditLogger, Config};

class GenerateDolibarrVersionTxtCli extends CliFramework
{
    public const VERSION = '09.23.00';

    private ?ApiClient  $api = null;
    private AuditLogger $logger;

    protected function configure(): void
    {
        $this->setDescription('Create or update version.txt for Dolibarr module update checks');
        $this->addArgument('--repo', 'GitHub repo (org/repo) for remote mode', '');
        $this->addArgument('--tag', 'Git tag for this release, e.g. v1.2.0 (required)', '');
        $this->addArgument('--output', 'Local output path for version.txt (default: ./version.txt)', './version.txt');
        $this->addArgument('--makefile', 'Local path to Makefile (default: ./Makefile)', './Makefile');
        $this->addArgument('--inject-urlversion', 'Inject / refresh $this->url_last_version in the Dolibarr module descriptor class', false);
    }

    protected function run(): int
    {
        $this->log('INFO', 'Dolibarr version.txt — release updater v' . self::VERSION);
        $this->logger = new AuditLogger('dolibarr_version_txt');

        $tag = $this->getArgument('--tag');
        if (empty($tag)) {
            $this->log('ERROR', '--tag is required (e.g. --tag=v1.2.0)');
            return 1;
        }

        $version = $this->sanitizeVersion(ltrim($tag, 'vV'));
        if (strlen($version) === 0 || strlen($version) > 29) {
            $this->log('ERROR', "Sanitized version '{$version}' is empty or > 29 characters");
            return 1;
        }

        $repoArg = $this->getArgument('--repo');
        return !empty($repoArg)
            ? $this->runRemote($repoArg, $tag, $version)
            : $this->runLocal($tag, $version);
    }

    // -------------------------------------------------------------------------
    // Remote mode
    // -------------------------------------------------------------------------

    private function runRemote(string $repoArg, string $tag, string $version): int
    {
        if (!$this->initApi()) {
            return 1;
        }

        if (!str_contains($repoArg, '/')) {
            $this->log('ERROR', '--repo must be in org/repo format');
            return 1;
        }
        [$org, $repo] = explode('/', $repoArg, 2);

        $repoData      = $this->api->get("/repos/{$org}/{$repo}");
        $defaultBranch = $repoData['default_branch'] ?? 'main';

        if ($this->dryRun) {
            $this->log('INFO', "(dry-run) version.txt content: {$version}");
            return 0;
        }

        $sha     = $this->fetchRemoteFileSha($org, $repo, 'version.txt');
        $payload = [
            'message' => "chore(release): update version.txt to {$version} for {$tag}",
            'content' => base64_encode($version),
            'branch'  => $defaultBranch,
        ];
        if ($sha !== null) {
            $payload['sha'] = $sha;
            $this->log('INFO', 'Updating existing version.txt');
        } else {
            $this->log('INFO', 'Creating new version.txt');
        }

        try {
            $this->api->put("/repos/{$org}/{$repo}/contents/version.txt", $payload);
            $this->log('INFO', "version.txt committed to {$defaultBranch} -> {$version}");
        } catch (\Exception $e) {
            $this->log('ERROR', 'Failed to commit version.txt: ' . $e->getMessage());
            return 1;
        }

        if ($this->getArgument('--inject-urlversion')) {
            $rawUrl = "https://raw.githubusercontent.com/{$org}/{$repo}/{$defaultBranch}/version.txt";
            $this->injectUrlVersionRemote($org, $repo, $defaultBranch, $rawUrl);
        }

        return 0;
    }

    // -------------------------------------------------------------------------
    // Local mode
    // -------------------------------------------------------------------------

    private function runLocal(string $tag, string $version): int
    {
        $outputPath = $this->getArgument('--output');

        if ($this->dryRun) {
            $this->log('INFO', "(dry-run) version.txt content: {$version}");
            return 0;
        }

        $action = file_exists($outputPath) ? 'Updated' : 'Created';
        if (file_put_contents($outputPath, $version) === false) {
            $this->log('ERROR', "Failed to write: {$outputPath}");
            return 1;
        }
        $this->log('INFO', "{$action} {$outputPath} -> {$version}");

        if ($this->getArgument('--inject-urlversion')) {
            $ghRepo = getenv('GITHUB_REPOSITORY') ?: '';
            if (!str_contains($ghRepo, '/')) {
                $this->warning('GITHUB_REPOSITORY not set — cannot inject url_last_version');
            } else {
                [$org, $repo] = explode('/', $ghRepo, 2);
                $rawUrl = "https://raw.githubusercontent.com/{$org}/{$repo}/main/version.txt";
                foreach ($this->findModuleDescriptors('.') as $path) {
                    $this->injectUrlVersionIntoFile($path, $rawUrl);
                }
            }
        }

        return 0;
    }

    // -------------------------------------------------------------------------
    // url_last_version injection into module descriptor class
    // -------------------------------------------------------------------------

    /**
     * Find all Dolibarr module descriptor files (modXxx.class.php).
     *
     * @return string[]
     */
    private function findModuleDescriptors(string $dir): array
    {
        $found    = [];
        $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($dir));
        foreach ($iterator as $file) {
            if (!$file->isFile()) {
                continue;
            }
            $basename = $file->getBasename();
            if (preg_match('/^mod[A-Z][^.]+\.class\.php$/', $basename)) {
                $content = file_get_contents((string) $file) ?: '';
                // Must extend DolibarrModules to be a real module descriptor
                if (str_contains($content, 'DolibarrModules')) {
                    $found[] = (string) $file;
                }
            }
        }
        return $found;
    }

    private function injectUrlVersionIntoFile(string $path, string $rawUrl): void
    {
        $content = file_get_contents($path) ?: '';
        $updated = $this->injectUrlVersionIntoPhp($content, $rawUrl);
        if ($updated !== null) {
            file_put_contents($path, $updated);
            $this->log('INFO', "  url_last_version -> {$path}");
        } else {
            $this->log('INFO', "  url_last_version already correct in {$path}");
        }
    }

    /**
     * Inject or update $this->url_last_version in a Dolibarr module descriptor.
     *
     * Returns null if no change is needed.
     */
    private function injectUrlVersionIntoPhp(string $content, string $rawUrl): ?string
    {
        $newLine = "\t\t\$this->url_last_version = '{$rawUrl}';";

        // Replace any existing url_last_version line (commented or not)
        if (preg_match('/^[ \t]*\/?\/?[ \t]*\$this->url_last_version\s*=.+$/m', $content)) {
            $updated = preg_replace(
                '/^[ \t]*\/?\/?[ \t]*\$this->url_last_version\s*=.+$/m',
                $newLine,
                $content
            );
            return ($updated !== $content) ? $updated : null;
        }

        // Insert after $this->version assignment
        $updated = preg_replace(
            '/^([ \t]*\$this->version\s*=.+)$/m',
            "$1\n{$newLine}",
            $content,
            1
        );
        return ($updated !== null && $updated !== $content) ? $updated : null;
    }

    private function injectUrlVersionRemote(string $org, string $repo, string $branch, string $rawUrl): void
    {
        try {
            $tree = $this->api->get("/repos/{$org}/{$repo}/git/trees/{$branch}", ['recursive' => '1']);
            foreach ($tree['tree'] ?? [] as $node) {
                if ($node['type'] !== 'blob') {
                    continue;
                }
                $path = $node['path'] ?? '';
                if (!preg_match('/mod[A-Z][^\/]+\.class\.php$/', $path)) {
                    continue;
                }
                $content = $this->fetchRemoteFile($org, $repo, $path);
                if ($content === null || !str_contains($content, 'DolibarrModules')) {
                    continue;
                }
                $updated = $this->injectUrlVersionIntoPhp($content, $rawUrl);
                if ($updated === null) {
                    $this->log('INFO', "  url_last_version already correct in {$path}");
                    continue;
                }
                $sha     = $this->fetchRemoteFileSha($org, $repo, $path);
                $payload = [
                    'message' => 'chore(release): inject url_last_version in module descriptor',
                    'content' => base64_encode($updated),
                    'branch'  => $branch,
                ];
                if ($sha !== null) {
                    $payload['sha'] = $sha;
                }
                $this->api->put("/repos/{$org}/{$repo}/contents/{$path}", $payload);
                $this->log('INFO', "  url_last_version -> {$path}");
            }
        } catch (\Exception $e) {
            $this->warning('url_last_version injection failed: ' . $e->getMessage());
        }
    }

    // -------------------------------------------------------------------------
    // Helpers
    // -------------------------------------------------------------------------

    /**
     * Strip any characters that Dolibarr would strip from the version string.
     */
    private function sanitizeVersion(string $version): string
    {
        return preg_replace('/[^a-zA-Z0-9_.\-]+/', '', $version) ?? '';
    }

    private function initApi(): bool
    {
        $config = Config::load();
        try {
            $adapter   = \MokoCli\PlatformAdapterFactory::create($config);
            $this->api = $adapter->getApiClient();
            return true;
        } catch (\Exception $e) {
            $this->log('ERROR', 'API init failed: ' . $e->getMessage());
            return false;
        }
    }

    private function fetchRemoteFile(string $org, string $repo, string $path): ?string
    {
        try {
            $r = $this->api->get("/repos/{$org}/{$repo}/contents/{$path}");
            return base64_decode(str_replace(["\n", "\r"], '', $r['content'] ?? '')) ?: null;
        } catch (\Exception $e) {
            return null;
        }
    }

    private function fetchRemoteFileSha(string $org, string $repo, string $path): ?string
    {
        try {
            return $this->api->get("/repos/{$org}/{$repo}/contents/{$path}")['sha'] ?? null;
        } catch (\Exception $e) {
            return null;
        }
    }
}

$app = new GenerateDolibarrVersionTxtCli();
exit($app->execute());