Public
HTTP
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// Strategy Factory and Strategies
const FizzBuzzStrategyFactory = {
createStrategy(type) {
const strategies = {
Fizz: (n) => n % 3 === 0 ? 'Fizz' : '',
Buzz: (n) => n % 5 === 0 ? 'Buzz' : '',
FizzBuzz: (n) => n % 15 === 0 ? 'FizzBuzz' : '',
Default: (n) => n.toString()
};
return strategies[type] || strategies.Default;
}
};
// Singleton ConfigurationManager
const ConfigurationManager = (() => {
let instance;
return {
getInstance: () => {
if (!instance) {
instance = { config: { maxNumber: 100 } };
}
return instance;
}
};
})();
// FizzBuzz Service
class FizzBuzzService {
constructor(strategies) {
this.strategies = strategies;
}
processNumber(number) {
return this.strategies.reduce((result, strategy) => result || strategy(number), '');
}
}
// FizzBuzz Controller
class FizzBuzzController {
constructor(fizzBuzzService) {
this.fizzBuzzService = fizzBuzzService;
}
getFizzBuzzResult(number) {
return this.fizzBuzzService.processNumber(number);
}
}
// FizzBuzz Facade
class FizzBuzzFacade {
constructor() {
const strategies = [
FizzBuzzStrategyFactory.createStrategy('FizzBuzz'),
FizzBuzzStrategyFactory.createStrategy('Fizz'),
FizzBuzzStrategyFactory.createStrategy('Buzz'),
FizzBuzzStrategyFactory.createStrategy('Default')
];
const fizzBuzzService = new FizzBuzzService(strategies);
this.controller = new FizzBuzzController(fizzBuzzService);
}
generateFizzBuzz() {
const maxNumber = ConfigurationManager.getInstance().config.maxNumber;
const results = [];
for (let i = 1; i <= maxNumber; i++) {
results.push(this.controller.getFizzBuzzResult(i));
}
return results;
}
}
// Logger (because every enterprise solution needs logging)
const Logger = {
log: (message) => console.log(`[${new Date().toISOString()}] ${message}`)
};
// Performance Tracker (because we need to optimize our FizzBuzz for enterprise scale)
const PerformanceTracker = {
start: () => performance.now(),
end: (startTime) => performance.now() - startTime
};
// FizzBuzz Microservice
export default async function(req) {
Logger.log("FizzBuzz request received");
const startTime = PerformanceTracker.start();
try {
const url = new URL(req.url);
const maxNumber = parseInt(url.searchParams.get('max')) || 100;
// Update configuration (in a thread-safe manner, of course)
ConfigurationManager.getInstance().config.maxNumber = maxNumber;
const fizzBuzzFacade = new FizzBuzzFacade();
const results = fizzBuzzFacade.generateFizzBuzz();
const executionTime = PerformanceTracker.end(startTime);
Logger.log(`FizzBuzz generated in ${executionTime.toFixed(2)}ms`);
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July 18, 2024