import fs from 'node:fs';
import path from 'node:path';
import { z } from 'zod';
import { config } from '../../config.js';
import { resolveWorkspacePath } from '../../lib/sandbox.js';
import { runCommand } from '../../lib/runCommand.js';
import { errorResult, jsonResult, toErrorMessage } from '../shared.js';
import { writeStaticHtmlTemplate } from './templates/staticHtml.js';
import { writeExpressApiTemplate } from './templates/expressApi.js';
const TEMPLATES = [
    'vite-react',
    'vite-vue',
    'next',
    'express-api',
    'static-html',
    'laravel',
    'codeigniter',
    'laravel-react',
    'codeigniter-react',
];
export function registerScaffoldProjectTool(server) {
    server.registerTool('scaffold_project', {
        title: 'Scaffold Project',
        description: `Create a new project from a template. Supported templates: ${TEMPLATES.join(', ')}. "laravel-react" and "codeigniter-react" create a PHP backend in "<name>/backend" and a separate Vite+React frontend in "<name>/frontend".`,
        inputSchema: {
            template: z.enum(TEMPLATES),
            name: z.string().min(1).describe('Project/folder name to create.'),
            directory: z
                .string()
                .optional()
                .describe('Parent directory (relative to the workspace root) to create the project in. Defaults to the workspace root.'),
        },
    }, async ({ template, name, directory }) => {
        try {
            const parentDir = resolveWorkspacePath(config.workspaceRoot, directory ?? '.');
            fs.mkdirSync(parentDir, { recursive: true });
            const targetDir = path.join(parentDir, name);
            if (fs.existsSync(targetDir) && fs.readdirSync(targetDir).length > 0) {
                return errorResult(`"${path.relative(config.workspaceRoot, targetDir)}" already exists and is not empty.`);
            }
            const result = await runScaffold(template, name, parentDir);
            return jsonResult(result);
        }
        catch (error) {
            return errorResult(toErrorMessage(error));
        }
    });
}
async function runScaffold(template, name, parentDir) {
    switch (template) {
        case 'vite-react':
            return scaffoldVite(name, parentDir, 'react-ts');
        case 'vite-vue':
            return scaffoldVite(name, parentDir, 'vue-ts');
        case 'next':
            return scaffoldNext(name, parentDir);
        case 'express-api':
            return { template, path: writeExpressApiTemplate(path.join(parentDir, name), name) };
        case 'static-html':
            return { template, path: writeStaticHtmlTemplate(path.join(parentDir, name), name) };
        case 'laravel':
            return scaffoldComposerProject('laravel/laravel', name, parentDir, template);
        case 'codeigniter':
            return scaffoldComposerProject('codeigniter4/appstarter', name, parentDir, template);
        case 'laravel-react':
            return scaffoldCombined('laravel/laravel', name, parentDir, template);
        case 'codeigniter-react':
            return scaffoldCombined('codeigniter4/appstarter', name, parentDir, template);
        default: {
            const exhaustive = template;
            throw new Error(`Unhandled template: ${exhaustive}`);
        }
    }
}
async function scaffoldVite(name, parentDir, viteTemplate) {
    const result = await runCommand('npm', ['create', 'vite@latest', name, '--', '--template', viteTemplate], {
        cwd: parentDir,
        timeoutMs: config.scaffoldCommandTimeoutMs,
    });
    return { template: viteTemplate === 'react-ts' ? 'vite-react' : 'vite-vue', path: path.join(parentDir, name), ...result };
}
async function scaffoldNext(name, parentDir) {
    const result = await runCommand('npx', [
        '--yes',
        'create-next-app@latest',
        name,
        '--ts',
        '--eslint',
        '--app',
        '--src-dir',
        '--import-alias',
        '@/*',
        '--use-npm',
        '--no-tailwind',
        '--yes',
    ], { cwd: parentDir, timeoutMs: config.scaffoldCommandTimeoutMs });
    return { template: 'next', path: path.join(parentDir, name), ...result };
}
async function scaffoldComposerProject(composerPackage, name, parentDir, template) {
    const result = await runCommand('composer', ['create-project', composerPackage, name], {
        cwd: parentDir,
        timeoutMs: config.scaffoldCommandTimeoutMs,
    });
    return { template, path: path.join(parentDir, name), ...result };
}
async function scaffoldCombined(composerPackage, name, parentDir, template) {
    const projectDir = path.join(parentDir, name);
    fs.mkdirSync(projectDir, { recursive: true });
    const backendResult = await runCommand('composer', ['create-project', composerPackage, 'backend'], {
        cwd: projectDir,
        timeoutMs: config.scaffoldCommandTimeoutMs,
    });
    const frontendResult = await runCommand('npm', ['create', 'vite@latest', 'frontend', '--', '--template', 'react-ts'], { cwd: projectDir, timeoutMs: config.scaffoldCommandTimeoutMs });
    return {
        template,
        path: projectDir,
        backend: { path: path.join(projectDir, 'backend'), ...backendResult },
        frontend: { path: path.join(projectDir, 'frontend'), ...frontendResult },
        note: 'Backend and frontend were scaffolded as independent siblings (not wired together via Inertia). Point the frontend at the backend API base URL as a next step.',
    };
}
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