detect.js

const fs = require('fs');
const path = require('path');
module.exports = options => {
  if (!options.port) options.port = 8080;
  if (options.https) {
    if (!options.https.key) {
      throw new Error('detect error:', '`options.https.key` must be exists');
    }
    if (!options.https.cert) {
      throw new Error('detect error:', '`options.https.cert` must be exists');
    }
  }
  const appDir = path.resolve(options.baseDir, 'app');
  if (!fs.existsSync(appDir)) {
    throw new Error(`miss '${appDir}' dir when framework detecting`);
  }
  if (!options.fetch_default_timeout) {
    options.fetch_default_timeout = 3000;
  }

  if (!options.server) options.server = {};
  if (!options.server.port) options.server.port = 8080;
  if (!options.cookie) options.cookie = {};
  if (!options.cookie.type) options.cookie.type = 'sha256';
  if (!options.cookie.keys) options.cookie.keys = ['koa-cookie-set-key', 'koa-cookie-set-value'];
}