import { z } from 'zod';
import { config } from '../../config.js';
import { detectJsPackageManager, runScriptCommandFor } from '../../lib/frameworks/packageManager.js';
import { runCommand } from '../../lib/runCommand.js';
import { errorResult, jsonResult, toErrorMessage } from '../shared.js';
import { requireReact } from './requireReact.js';
function parseReactTestingLibraryOutput(output) {
    // Extract failing test names and common RTL errors for a quick summary.
    const failingTests = output
        .split(/\n(?=\s*FAIL|●)/)
        .filter((chunk) => chunk.includes('●'))
        .map((chunk) => {
        const match = chunk.match(/●\s*(.+?)(?:\n|$)/);
        return match?.[1]?.trim() ?? null;
    })
        .filter((item) => Boolean(item));
    const rtlErrors = [];
    if (/Unable to find an element/i.test(output))
        rtlErrors.push('Unable to find an element (getBy/queryBy failed)');
    if (/Found multiple elements/i.test(output))
        rtlErrors.push('Found multiple elements with the same query');
    if (/found accessibility element/i.test(output))
        rtlErrors.push('Role/name based query mismatch');
    if (/Timed out in waitFor/i.test(output))
        rtlErrors.push('waitFor timeout (async assertion not satisfied)');
    if (/Warning: An update to .* inside a test was not wrapped in act/i.test(output)) {
        rtlErrors.push('Missing act() wrapper around state update');
    }
    const totalMatch = output.match(/Tests\s+(\d+)\s+passed/i) || output.match(/Test Suites?:\s*(\d+)\s+passed/i);
    return {
        failingTestCount: failingTests.length,
        failingTests: failingTests.slice(0, 10),
        rtlErrors: rtlErrors.slice(0, 10),
        testsPassed: totalMatch ? Number(totalMatch[1]) : null,
    };
}
export function registerRunReactTestsTool(server) {
    server.registerTool('run_react_tests', {
        title: 'Run React Tests',
        description: 'Run the React test runner (Jest/Vitest + React Testing Library) via package.json "test" script and surface RTL-specific failures.',
        inputSchema: {
            extraArgs: z
                .array(z.string())
                .optional()
                .describe('Extra CLI args, e.g. ["--filter", "UserCard"].'),
        },
    }, async ({ extraArgs }) => {
        try {
            const react = requireReact();
            const pm = detectJsPackageManager(react.root);
            const { command, args } = runScriptCommandFor(pm, 'test', extraArgs ?? []);
            const result = await runCommand(command, args, {
                cwd: react.root,
                timeoutMs: config.scaffoldCommandTimeoutMs,
            });
            return jsonResult({
                runner: 'npm-test-script',
                summary: parseReactTestingLibraryOutput(result.output),
                ...result,
            });
        }
        catch (error) {
            return errorResult(toErrorMessage(error));
        }
    });
}
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