class FusionChat {
  constructor(apiKey) {
    this.apiKey = apiKey;
    this.messages = [];
    this.apiUrl = 'https://api.mcp4.ai/chat';
  }

  async sendMessage(userMessage) {
    // Add user message to history
    this.messages.push({
      role: 'user',
      content: userMessage
    });

    try {
      const response = await fetch(this.apiUrl, {
        method: 'POST',
        headers: {
          'Authorization': `Bearer ${this.apiKey}`,
          'Content-Type': 'application/json'
        },
        body: JSON.stringify({
          messages: this.messages,
          provider: 'neuroswitch',
          max_tokens: 500
        })
      });

      const data = await response.json();
      
      // Add AI response to history
      this.messages.push({
        role: 'assistant',
        content: data.response
      });

      return {
        response: data.response,
        provider: data.provider_used,
        cost: data.cost
      };
    } catch (error) {
      console.error('Chat error:', error);
      throw error;
    }
  }

  clearHistory() {
    this.messages = [];
  }
}

// Usage example
const chat = new FusionChat('sk-fusion-your-api-key');

const response1 = await chat.sendMessage("What's the capital of France?");
console.log(response1.response); // "The capital of France is Paris..."

const response2 = await chat.sendMessage("What's the population there?");
console.log(response2.response); // "Paris has a population of approximately 2.1 million..."

import requests

class FusionChat:
    def __init__(self, api_key):
        self.api_key = api_key
        self.messages = []
        self.api_url = 'https://api.mcp4.ai/chat'
    
    def send_message(self, user_message):
        # Add user message to history
        self.messages.append({
            'role': 'user',
            'content': user_message
        })
        
        try:
            response = requests.post(
                self.api_url,
                headers={
                    'Authorization': f'Bearer {self.api_key}',
                    'Content-Type': 'application/json'
                },
                json={
                    'messages': self.messages,
                    'provider': 'neuroswitch',
                    'max_tokens': 500
                }
            )
            
            data = response.json()
            
            # Add AI response to history
            self.messages.append({
                'role': 'assistant',
                'content': data['response']
            })
            
            return {
                'response': data['response'],
                'provider': data['provider_used'],
                'cost': data['cost']
            }
            
        except Exception as error:
            print(f'Chat error: {error}')
            raise error
    
    def clear_history(self):
        self.messages = []

# Usage example
chat = FusionChat('sk-fusion-your-api-key')

response1 = chat.send_message("Explain machine learning in simple terms")
print(response1['response'])

response2 = chat.send_message("Can you give me a practical example?")
print(response2['response'])  # Will reference the previous explanation