import { execSync } from "child_process";
import fs from "fs";
import { wpConfig, wpPrompts } from "@rnaga/wp-node-cli/configs/wp.config";
import { init as initWp } from "@rnaga/wp-node-cli/init/init";
import { copyFile, fileExists, mkdir } from "@rnaga/wp-node/common/files";
import { Cli } from "@rnaga/wp-node-cli/cli";
import { command, subcommand } from "@rnaga/wp-node-cli/decorators";
import { logger } from "../logger";
interface WPHttpInput {}
@command("http", {
description:
"Scaffold a TypeScript project for the MCP streamable HTTP server and related tooling.",
version: "1.0.0",
})
export class HttpCli extends Cli {
@subcommand("init", {
description:
"Generate the HTTP server project, install dependencies, and set up env/config templates.",
})
async init() {
const { program } = wpConfig();
program.option(
"-e, --environment",
"File extension for env file (e.g. local for .env.local). Leaves empty for .env (default)."
);
const wpHttpInput = await program
.parseAsync(process.argv.filter((v) => v !== "--"))
.then(() => {
const options = program.opts();
return wpPrompts<WPHttpInput>(options, []);
});
logger.console.log("Initializing MCP HTTP Server...");
const environment = program.opts().environment || "";
await initWp({ ...wpHttpInput, environment });
logger.console.log("Installing dependencies...");
// Install dependencies
const dependencies = ["@rnaga/wp-node", "@rnaga/wp-mcp"];
execSync(`npm i -S ${dependencies.join(" ")}`, { stdio: "inherit" });
// Install dev dependencies
const devDependencies = ["typescript", "@types/node", "ts-node"];
execSync(`npm i -D ${devDependencies.join(" ")}`, { stdio: "inherit" });
// Delete index.ts created by wp-node
if (fileExists("./index.ts")) {
fs.unlinkSync("./index.ts");
}
logger.console.log("Creating HTTP server files...");
const templateBaseDir = __dirname + "/templates/http";
const distDir = "./src";
// Create dist directories
mkdir(distDir);
// Copy file templates
const filesToCopy = ["index.ts"];
// Copy the remaining files
filesToCopy.forEach((file) => {
copyFile(`${templateBaseDir}/${file}`, `${distDir}/${file}`);
});
// .env has been created by initWp
// Now it needs to append MCP specific settings saved in template (env example)
const envExample = fs.readFileSync(`${templateBaseDir}/env`, "utf-8");
// Read and parse existing.
const envFile = environment ? `.env.${environment}` : ".env";
const existingEnv = fileExists(envFile)
? fs.readFileSync(envFile, "utf-8")
: "";
const envLines = existingEnv
.split("\n")
.filter((line) => line.trim() !== "");
// Skip if "OAUTH_CLIENT_ID=" already exists
if (!envLines.some((line) => line.startsWith("OAUTH_CLIENT_ID="))) {
fs.appendFileSync(envFile, `\n\n${envExample}`);
logger.console.log(`${envFile} has been created/updated.`);
} else {
logger.console.log(
`${envFile} already exists. Skipping appending env example.`
);
}
logger.console.log("Updating package.json scripts...");
// Add npm run dev to package.json scripts to start the HTTP server in development with ts-node
const packageJson = JSON.parse(fs.readFileSync("package.json", "utf-8"));
packageJson.scripts = packageJson.scripts || {};
packageJson.scripts["dev"] = "ts-node src/index.ts";
packageJson.scripts["build"] =
"tsc --project ./tsconfig.json --outDir ./dist";
packageJson.scripts["start"] = "node ./dist/src/index.js";
fs.writeFileSync("package.json", JSON.stringify(packageJson, null, 2));
logger.console.log("Initialization complete!");
logger.console.log("Next steps:");
logger.console.log("1. Update your .env file with appropriate settings.");
logger.console.log(
"2. Run 'npm run dev' to start the MCP HTTP server in development mode."
);
logger.console.log(
"3. Run 'npm run build' to compile the TypeScript files."
);
logger.console.log("4. Run 'npm start' to start the compiled server.");
}
}
