import fetch from 'node-fetch';
import chalk from 'chalk';
import { createClient } from '@hey-api/openapi-ts';

// Start notifying user we are generating the TypeScript client
console.log(chalk.green("Generating OpenAPI client..."));

const swaggerUrl = process.argv[2];
if (swaggerUrl === undefined) {
  console.error(chalk.red(`ERROR: Missing URL to OpenAPI spec`));
  console.error(`Please provide the URL to the OpenAPI spec as the first argument found in ${chalk.yellow('package.json')}`);
  console.error(`Example: node generate-openapi.js ${chalk.yellow('https://localhost:44331/umbraco/swagger/REPLACE_ME/swagger.json')}`);
  process.exit();
}

// Needed to ignore self-signed certificates from running Umbraco on https on localhost
process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';

// Start checking to see if we can connect to the OpenAPI spec
console.log("Ensure your Umbraco instance is running");
console.log(`Fetching OpenAPI definition from ${chalk.yellow(swaggerUrl)}`);

fetch(swaggerUrl).then(response => {
  if (!response.ok) {
    console.error(chalk.red(`ERROR: OpenAPI spec returned with a non OK (200) response: ${response.status} ${response.statusText}`));
    console.error(`The URL to your Umbraco instance may be wrong or the instance is not running`);
    console.error(`Please verify or change the URL in the ${chalk.yellow('package.json')} for the script ${chalk.yellow('generate-openapi')}`);
    return;
  }

  console.log(`OpenAPI spec fetched successfully`);
  console.log(`Calling ${chalk.yellow('hey-api')} to generate TypeScript client`);

  createClient({
    client: '@hey-api/client-fetch',
    input: swaggerUrl,
    output: 'src/api',
    services: {
      asClass: true,
    }
  });

})
  .catch(error => {
    console.error(`ERROR: Failed to connect to the OpenAPI spec: ${chalk.red(error.message)}`);
    console.error(`The URL to your Umbraco instance may be wrong or the instance is not running`);
    console.error(`Please verify or change the URL in the ${chalk.yellow('package.json')} for the script ${chalk.yellow('generate-openapi')}`);
  });