import fs from 'node:fs';
import path from 'node:path';
import { z } from 'zod';
import { config } from '../../config.js';
import { detectProject } from '../../lib/frameworks/detect.js';
import { readPackageJson } from '../../lib/frameworks/packageManager.js';
import { readComposerJson } from '../../lib/frameworks/composer.js';
import { errorResult, jsonResult, targetSchema, toErrorMessage } from '../shared.js';
export function registerGetPackageInfoTool(server) {
    server.registerTool('get_package_info', {
        title: 'Get Package Info',
        description: 'Return installed package metadata from package.json (React/Node projects) or composer.json (PHP projects): version, scripts, and key dependencies.',
        inputSchema: {
            target: targetSchema,
            ecosystem: z
                .enum(['npm', 'composer', 'auto'])
                .optional()
                .default('auto')
                .describe('Which manifest to read. Auto detects from the resolved project.'),
        },
    }, async ({ target, ecosystem }) => {
        try {
            const detected = detectProject(config.workspaceRoot);
            const adapter = target === 'frontend'
                ? detected.frontend
                : target === 'backend'
                    ? detected.backend
                    : (detected.frontend ?? detected.backend ?? detected.primary);
            if (!adapter)
                return errorResult('No project detected in WORKSPACE_ROOT.');
            const resolvedEcosystem = ecosystem === 'auto' ? (adapter.packageManager === 'composer' ? 'composer' : 'npm') : ecosystem;
            const root = adapter.root;
            if (resolvedEcosystem === 'composer') {
                const composerJson = readComposerJson(root);
                if (!composerJson)
                    return errorResult(`No composer.json found at ${root}`);
                const lockPath = path.join(root, 'composer.lock');
                let installed = {};
                if (fs.existsSync(lockPath)) {
                    try {
                        const lock = JSON.parse(fs.readFileSync(lockPath, 'utf8'));
                        installed = Object.fromEntries((lock.packages ?? []).slice(0, 50).map((p) => [p.name, p.version]));
                    }
                    catch {
                        // ignore lock parse errors
                    }
                }
                return jsonResult({
                    ecosystem: 'composer',
                    root,
                    name: composerJson.name ?? null,
                    require: composerJson.require ?? {},
                    requireDev: composerJson['require-dev'] ?? {},
                    scripts: composerJson.scripts ?? {},
                    installedSample: installed,
                });
            }
            const packageJson = readPackageJson(root);
            if (!packageJson)
                return errorResult(`No package.json found at ${root}`);
            return jsonResult({
                ecosystem: 'npm',
                root,
                name: packageJson.name ?? null,
                scripts: packageJson.scripts ?? {},
                dependencies: packageJson.dependencies ?? {},
                devDependencies: packageJson.devDependencies ?? {},
            });
        }
        catch (error) {
            return errorResult(toErrorMessage(error));
        }
    });
}
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