#!/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.CLI
 * INGROUP: MokoStandards
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
 * PATH: /cli/create_project.php
 * BRIEF: Create baseline GitHub Projects for repositories with standard fields and views
 *
 * USAGE
 *   php cli/create_project.php --repo MokoCRM                    # Auto-detect type, create project
 *   php cli/create_project.php --repo MokoCRM --type dolibarr    # Force type
 *   php cli/create_project.php --org mokoconsulting-tech --all    # All repos without projects
 *   php cli/create_project.php --repo MokoCRM --dry-run          # Preview without changes
 */

declare(strict_types=1);

$dryRun  = in_array('--dry-run', $argv);
$allMode = in_array('--all', $argv);

$org      = 'mokoconsulting-tech';
$repoName = null;
$typeOverride = null;

foreach ($argv as $i => $arg) {
	if ($arg === '--repo' && isset($argv[$i + 1])) {
		$repoName = $argv[$i + 1];
	}
	if ($arg === '--org' && isset($argv[$i + 1])) {
		$org = $argv[$i + 1];
	}
	if ($arg === '--type' && isset($argv[$i + 1])) {
		$typeOverride = $argv[$i + 1];
	}
}

if (!$repoName && !$allMode) {
	fwrite(STDERR, "Usage: php create_project.php --repo <name> [--type <type>] [--dry-run]\n");
	fwrite(STDERR, "       php create_project.php --all [--org <org>] [--dry-run]\n");
	fwrite(STDERR, "\nTypes: generic, dolibarr, joomla, nodejs, terraform, python, wordpress, mobile-app, api, documentation\n");
	exit(2);
}

$config   = \MokoEnterprise\Config::load();
$platform = $config->getString('platform', 'gitea');
try {
	$adapter = \MokoEnterprise\PlatformAdapterFactory::create($config);
	$api     = $adapter->getApiClient();
} catch (\Exception $e) {
	fwrite(STDERR, "Platform initialization failed: " . $e->getMessage() . "\n");
	exit(1);
}
$token = $platform === 'gitea'
	? $config->getString('gitea.token', '')
	: $config->getString('github.token', '');

$repoRoot     = dirname(__DIR__, 2);
$templatesDir = "{$repoRoot}/templates/projects";

// ── Always-exclude list (no project needed) ─────────────────────────────
$ALWAYS_EXCLUDE = ['MokoStandards', '.github-private'];

// ── Platform type map ───────────────────────────────────────────────────
$PLATFORM_TO_TYPE = [
	'crm-module'     => 'dolibarr',
	'crm-platform'   => 'dolibarr',
	'waas-component' => 'joomla',
	'waas-library'   => 'joomla',
	'waas-plugin'    => 'joomla',
	'waas-package'   => 'joomla',
	'nodejs'         => 'nodejs',
	'terraform'      => 'terraform',
	'python'         => 'python',
	'wordpress'      => 'wordpress',
	'mobile'         => 'mobile-app',
	'api'            => 'api',
	'documentation'  => 'documentation',
];

// ── Template file map ───────────────────────────────────────────────────
$TYPE_TO_TEMPLATE = [
	'generic'       => 'generic-project-definition.tf',
	'dolibarr'      => 'dolibarr-project-definition.tf',
	'joomla'        => 'joomla-project-definition.tf',
	'nodejs'        => 'nodejs-project-definition.tf',
	'terraform'     => 'terraform-project-definition.tf',
	'python'        => 'python-project-definition.tf',
	'wordpress'     => 'wordpress-project-definition.tf',
	'mobile-app'    => 'mobile-app-project-definition.tf',
	'api'           => 'api-project-definition.tf',
	'documentation' => 'documentation-project-definition.tf',
];

/**
 * Execute a GraphQL query (GitHub only — Gitea does not support GraphQL).
 *
 * @return array<string, mixed>
 */
function graphql(string $query, array $variables, string $token, string $platformName = 'gitea'): array
{
	if ($platformName !== 'github') {
		return [];
	}
	$payload = json_encode(['query' => $query, 'variables' => $variables]);
	$ch = curl_init('https://api.github.com/graphql');
	curl_setopt_array($ch, [
		CURLOPT_RETURNTRANSFER => true,
		CURLOPT_POST           => true,
		CURLOPT_POSTFIELDS     => $payload,
		CURLOPT_HTTPHEADER     => [
			'Authorization: bearer ' . $token,
			'Content-Type: application/json',
			'User-Agent: MokoStandards-CreateProject',
		],
	]);
	$body = (string) curl_exec($ch);
	$status = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
	curl_close($ch);

	if ($status !== 200) {
		fwrite(STDERR, "GraphQL request failed (HTTP {$status}): {$body}\n");
		return [];
	}

	$data = json_decode($body, true) ?? [];
	if (!empty($data['errors'])) {
		foreach ($data['errors'] as $err) {
			fwrite(STDERR, "  GraphQL error: " . ($err['message'] ?? 'unknown') . "\n");
		}
	}

	return $data['data'] ?? [];
}

/**
 * Execute a REST API GET call via the platform adapter's ApiClient.
 *
 * @return array<string, mixed>
 */
function restGet(string $path, string $token, ?\MokoEnterprise\ApiClient $apiClient = null): array
{
	if ($apiClient !== null) {
		try {
			return $apiClient->get("/{$path}");
		} catch (\Exception $e) {
			return [];
		}
	}
	return [];
}

/**
 * Detect platform type from .mokostandards file in the repo.
 */
function detectPlatform(string $org, string $repo, string $token, ?\MokoEnterprise\ApiClient $apiClient = null): string
{
	// Try platform metadata dir first, then root
	foreach (['.github/.mokostandards', '.gitea/.mokostandards', '.mokostandards'] as $path) {
		$data = restGet("repos/{$org}/{$repo}/contents/{$path}", $token, $apiClient);
		if (!empty($data['content'])) {
			$content = base64_decode($data['content']);
			if (preg_match('/^platform:\s*(.+)/m', $content, $m)) {
				return trim($m[1], " \t\n\r\"'");
			}
		}
	}
	return '';
}

/**
 * Get the GitHub node ID for a repository.
 */
function getRepoNodeId(string $org, string $repo, string $token): string
{
	$data = graphql(
		'query($owner: String!, $name: String!) { repository(owner: $owner, name: $name) { id } }',
		['owner' => $org, 'name' => $repo],
		$token
	);
	return $data['repository']['id'] ?? '';
}

/**
 * Get the GitHub node ID for the organization owner.
 */
function getOrgNodeId(string $org, string $token): string
{
	$data = graphql(
		'query($login: String!) { organization(login: $login) { id } }',
		['login' => $org],
		$token
	);
	return $data['organization']['id'] ?? '';
}

/**
 * Check if a repo already has a GitHub Project linked.
 *
 * @return array{bool, string}  [hasProject, projectTitle]
 */
function repoHasProject(string $org, string $repo, string $token): array
{
	$data = graphql(
		'query($owner: String!, $name: String!) {
			repository(owner: $owner, name: $name) {
				projectsV2(first: 1) { nodes { id title } totalCount }
			}
		}',
		['owner' => $org, 'name' => $repo],
		$token
	);

	$count = $data['repository']['projectsV2']['totalCount'] ?? 0;
	$title = $data['repository']['projectsV2']['nodes'][0]['title'] ?? '';
	return [$count > 0, $title];
}

/**
 * Parse a .tf template file to extract custom fields.
 *
 * @return array{name: string, fields: array, views: array}
 */
function parseTemplate(string $filePath): array
{
	if (!file_exists($filePath)) {
		return ['name' => 'Development Board', 'fields' => [], 'views' => []];
	}

	$content = file_get_contents($filePath);
	$result  = ['name' => 'Development Board', 'fields' => [], 'views' => []];

	// Extract project name
	if (preg_match('/name\s*=\s*"([^"]+)"/', $content, $m)) {
		$result['name'] = $m[1];
	}

	// Extract custom fields
	if (preg_match_all('/\{\s*name\s*=\s*"([^"]+)"\s*type\s*=\s*"([^"]+)"\s*description\s*=\s*"([^"]+)"(?:\s*options\s*=\s*\[([^\]]*)\])?\s*\}/s', $content, $matches, PREG_SET_ORDER)) {
		foreach ($matches as $match) {
			$field = [
				'name'        => $match[1],
				'type'        => $match[2],
				'description' => $match[3],
			];
			if (!empty($match[4])) {
				$field['options'] = array_map(
					fn($o) => trim($o, " \t\n\r\"'"),
					explode(',', $match[4])
				);
				$field['options'] = array_filter($field['options']);
			}
			$result['fields'][] = $field;
		}
	}

	return $result;
}

/**
 * Create a GitHub Project V2 for a repository.
 */
function createProject(
	string $org,
	string $repo,
	string $ownerId,
	string $repoId,
	array $template,
	string $token,
	bool $dryRun
): bool {
	$title = "{$repo} — {$template['name']}";

	if ($dryRun) {
		echo "  (dry-run) would create project: {$title}\n";
		echo "  (dry-run) fields: " . count($template['fields']) . "\n";
		return true;
	}

	// Step 1: Create the project
	echo "  Creating project: {$title}\n";
	$data = graphql(
		'mutation($ownerId: ID!, $title: String!) {
			createProjectV2(input: { ownerId: $ownerId, title: $title }) {
				projectV2 { id number url }
			}
		}',
		['ownerId' => $ownerId, 'title' => $title],
		$token
	);

	$projectId = $data['createProjectV2']['projectV2']['id'] ?? '';
	$projectUrl = $data['createProjectV2']['projectV2']['url'] ?? '';

	if (empty($projectId)) {
		fwrite(STDERR, "  Failed to create project for {$repo}\n");
		return false;
	}

	echo "  Project created: {$projectUrl}\n";

	// Step 2: Link the project to the repository
	graphql(
		'mutation($projectId: ID!, $repositoryId: ID!) {
			linkProjectV2ToRepository(input: { projectId: $projectId, repositoryId: $repositoryId }) {
				repository { id }
			}
		}',
		['projectId' => $projectId, 'repositoryId' => $repoId],
		$token
	);
	echo "  Linked to {$org}/{$repo}\n";

	// Step 3: Create custom fields
	$fieldCount = 0;
	foreach ($template['fields'] as $field) {
		$fieldType = match ($field['type']) {
			'single_select' => 'SINGLE_SELECT',
			'text'          => 'TEXT',
			'number'        => 'NUMBER',
			'date'          => 'DATE',
			'iteration'     => 'ITERATION',
			default         => 'TEXT',
		};

		$vars = [
			'projectId' => $projectId,
			'name'      => $field['name'],
			'dataType'  => $fieldType,
		];

		// Single select fields need options created with the field
		if ($fieldType === 'SINGLE_SELECT' && !empty($field['options'])) {
			$optionInputs = array_map(
				fn($o) => ['name' => $o, 'description' => '', 'color' => 'GRAY'],
				$field['options']
			);
			$vars['singleSelectOptions'] = $optionInputs;

			graphql(
				'mutation($projectId: ID!, $name: String!, $dataType: ProjectV2CustomFieldType!, $singleSelectOptions: [ProjectV2SingleSelectFieldOptionInput!]) {
					createProjectV2Field(input: {
						projectId: $projectId,
						dataType: $dataType,
						name: $name,
						singleSelectOptions: $singleSelectOptions
					}) {
						projectV2Field { ... on ProjectV2SingleSelectField { id name } }
					}
				}',
				$vars,
				$token
			);
		} else {
			graphql(
				'mutation($projectId: ID!, $name: String!, $dataType: ProjectV2CustomFieldType!) {
					createProjectV2Field(input: {
						projectId: $projectId,
						dataType: $dataType,
						name: $name
					}) {
						projectV2Field { ... on ProjectV2Field { id name } }
					}
				}',
				$vars,
				$token
			);
		}

		$fieldCount++;
	}

	echo "  Created {$fieldCount} custom fields\n";

	// Step 4: Update project description and README
	graphql(
		'mutation($projectId: ID!, $shortDescription: String!) {
			updateProjectV2(input: {
				projectId: $projectId,
				shortDescription: $shortDescription,
				readme: "Managed by MokoStandards. Run `php cli/create_project.php` to regenerate."
			}) {
				projectV2 { id }
			}
		}',
		[
			'projectId'        => $projectId,
			'shortDescription' => "Standard project board for {$repo}. Auto-created by MokoStandards.",
		],
		$token
	);

	echo "  Project setup complete\n";
	return true;
}

// ── Main ────────────────────────────────────────────────────────────────

$repos = [];

if ($allMode) {
	echo "Fetching repositories from {$org}...\n";
	$page = 1;
	do {
		$batch = restGet("orgs/{$org}/repos?per_page=100&page={$page}&type=all", $token);
		foreach ($batch as $r) {
			if (!$r['archived'] && !in_array($r['name'], $ALWAYS_EXCLUDE, true)) {
				$repos[] = $r['name'];
			}
		}
		$page++;
	} while (count($batch) === 100);

	sort($repos);
	echo "Found " . count($repos) . " repositories\n\n";
} else {
	$repos = [$repoName];
}

$ownerId = getOrgNodeId($org, $token);
if (empty($ownerId)) {
	fwrite(STDERR, "Could not resolve org node ID for {$org}\n");
	exit(1);
}

$created = 0;
$skipped = 0;
$failed  = 0;

foreach ($repos as $repo) {
	echo "Processing {$repo}...\n";

	// Check if project already exists
	[$hasProject, $existingTitle] = repoHasProject($org, $repo, $token);
	if ($hasProject) {
		echo "  Already has project: {$existingTitle} — skipping\n";
		$skipped++;
		continue;
	}

	// Detect project type
	$type = $typeOverride;
	if (!$type) {
		$platform = detectPlatform($org, $repo, $token);
		$type = $PLATFORM_TO_TYPE[$platform] ?? 'generic';
		echo "  Platform: {$platform} → type: {$type}\n";
	}

	// Load template
	$templateFile = $TYPE_TO_TEMPLATE[$type] ?? $TYPE_TO_TEMPLATE['generic'];
	$template = parseTemplate("{$templatesDir}/{$templateFile}");

	// Get repo node ID
	$repoId = getRepoNodeId($org, $repo, $token);
	if (empty($repoId)) {
		fwrite(STDERR, "  Could not resolve repo node ID for {$repo}\n");
		$failed++;
		continue;
	}

	// Create the project
	$ok = createProject($org, $repo, $ownerId, $repoId, $template, $token, $dryRun);
	if ($ok) {
		$created++;
	} else {
		$failed++;
	}

	echo "\n";
}

echo str_repeat('-', 50) . "\n";
echo "Done: {$created} created, {$skipped} skipped, {$failed} failed\n";
exit($failed > 0 ? 1 : 0);