import { z } from 'zod';
import { config } from '../../config.js';
import { detectProject } from '../../lib/frameworks/detect.js';
import { readComposerJson } from '../../lib/frameworks/composer.js';
import { errorResult, jsonResult, toErrorMessage } from '../shared.js';
function extractMajorMinor(versionConstraint) {
    if (!versionConstraint)
        return '11.x';
    const match = versionConstraint.match(/(\d+)\.(\d+)/);
    if (!match)
        return '11.x';
    const [, major, minor] = match;
    return `${major}.${minor}`;
}
export function registerSearchLaravelDocsTool(server) {
    server.registerTool('search_laravel_docs', {
        title: 'Search Laravel Docs',
        description: 'Return a deep link to the Laravel documentation for a topic, version-matched to the laravel/framework constraint in composer.json.',
        inputSchema: {
            topic: z.string().min(1).describe('Documentation topic, e.g. "eloquent" or "validation".'),
            version: z.string().optional().describe('Override the version segment, e.g. "11.x". Auto-detected by default.'),
        },
    }, async ({ topic, version }) => {
        try {
            const detected = detectProject(config.workspaceRoot);
            const laravelRoot = detected.backend?.kind === 'laravel' ? detected.backend.root : config.workspaceRoot;
            const composerJson = readComposerJson(laravelRoot);
            const constraint = composerJson?.require?.['laravel/framework'];
            const docsVersion = version ?? extractMajorMinor(constraint) + '.x';
            const slug = topic.toLowerCase().replace(/\s+/g, '-');
            const url = `https://laravel.com/docs/${docsVersion}/${slug}`;
            return jsonResult({
                topic,
                version: docsVersion,
                composerConstraint: constraint ?? null,
                url,
                note: 'This is a best-effort documentation link. If the topic page does not exist, MDN/search engines may help refine the query.',
            });
        }
        catch (error) {
            return errorResult(toErrorMessage(error));
        }
    });
}
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