Studio.js: Microservices Framework

const studio = require('studio');

// Define a simple service named 'sum'
studio.service('sum', function(a, b) {
  console.log(`Service 'sum' received: ${a}, ${b}`);
  return Promise.resolve(a + b); // Studio uses Promises (often Bluebird)
});

// Define another service named 'greet' using an async function syntax
// Note: This relies on Node.js support for async/await, or transpilation,
// as Studio's core pre-dates native async/await prevalence.
studio.service('greet', async function(name) {
    return `Hello, ${name}! Welcome to Studio.js.`;
});

// Call the 'sum' service
studio.call('sum', 5, 3)
  .then(result => {
    console.log('Result of sum:', result); // Expected: 8
  })
  .catch(err => {
    console.error('Error calling sum:', err);
  });

// Call the 'greet' service
studio.call('greet', 'Developer')
  .then(message => {
    console.log('Result of greet:', message); // Expected: Hello, Developer! Welcome to Studio.js.
  })
  .catch(err => {
    console.error('Error calling greet:', err);
  });

// Example of publishing a message (fire-and-forget pattern)
studio.service('logMessage', function(message) {
  console.log('[LOG SERVICE]:', message);
});

studio.publish('logMessage', 'This is a broadcast message from the quickstart!');

console.log('\nStudio.js services initialized and called.\n(Check console for service outputs)');