import path from 'node:path';
import { z } from 'zod';
import { config } from '../../config.js';
import { vendorBinExists } from '../../lib/frameworks/composer.js';
import { runCommand } from '../../lib/runCommand.js';
import { errorResult, jsonResult, toErrorMessage } from '../shared.js';
import { requireCodeIgniter } from './requireCodeIgniter.js';
function vendorBin(root, bin) {
    const suffix = process.platform === 'win32' ? '.bat' : '';
    return path.join(root, 'vendor', 'bin', `${bin}${suffix}`);
}
function parsePhpUnitSummary(output) {
    const ok = output.match(/OK\s*\((\d+)\s+tests?,\s*(\d+)\s+assertions?\)/i);
    if (ok) {
        return { passed: true, tests: Number(ok[1]), assertions: Number(ok[2]), failures: 0, errors: 0 };
    }
    const summary = output.match(/Tests:\s*(\d+),\s*Assertions:\s*(\d+)(?:,\s*Errors:\s*(\d+))?(?:,\s*Failures:\s*(\d+))?(?:,\s*Skipped:\s*(\d+))?/i);
    if (summary) {
        return {
            passed: !/FAILURES!|ERRORS!/i.test(output),
            tests: Number(summary[1]),
            assertions: Number(summary[2]),
            errors: Number(summary[3] ?? 0),
            failures: Number(summary[4] ?? 0),
            skipped: Number(summary[5] ?? 0),
        };
    }
    return { passed: null, note: 'Could not parse a pass/fail summary from the runner output.' };
}
export function registerCodeIgniterTestTool(server) {
    server.registerTool('run_codeigniter_tests', {
        title: 'Run CodeIgniter Tests',
        description: "Run the CodeIgniter 4 project's PHPUnit-based test suite (CIUnitTestCase) via vendor/bin/phpunit, " +
            'or `php spark test` as a fallback. Returns parsed pass/fail counts when possible.',
        inputSchema: {
            extraArgs: z
                .array(z.string())
                .optional()
                .describe('Extra CLI args, e.g. ["--filter", "UserTest"].'),
        },
    }, async ({ extraArgs }) => {
        try {
            const ci = requireCodeIgniter();
            const args = extraArgs ?? [];
            let command;
            let cmdArgs;
            if (vendorBinExists(ci.root, 'phpunit')) {
                command = vendorBin(ci.root, 'phpunit');
                cmdArgs = args;
            }
            else if (vendorBinExists(ci.root, 'spark')) {
                // CI4 does not ship a built-in `spark test` command out of the box,
                // but projects sometimes add one. If phpunit is missing, try it.
                command = 'php';
                cmdArgs = ['spark', 'test', ...args];
            }
            else {
                return errorResult(`No vendor/bin/phpunit found at ${ci.root}. Run composer install (or run_install) first.`);
            }
            const result = await runCommand(command, cmdArgs, {
                cwd: ci.root,
                timeoutMs: config.scaffoldCommandTimeoutMs,
            });
            return jsonResult({ runner: 'phpunit', summary: parsePhpUnitSummary(result.output), ...result });
        }
        catch (error) {
            return errorResult(toErrorMessage(error));
        }
    });
}
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