// Example 4: implements app actions.

var prompt = require('prompt-sync')();
var ConversationV1 = require('watson-developer-cloud/conversation/v1');

// Set up Conversation service.
var conversation = new ConversationV1({
    username: '05f5fc2e-a0a6-4264-8463-f0d3bfba6b55', // replace with username from service key
    password: 'tp4IlCiv8jI2', // replace with password from service key
    path: { workspace_id: 'f84b28e4-3ef2-4b5a-9908-7e47ecfbdfb2' }, // replace with workspace ID
    version_date: '2017-05-26'
});

// Start conversation with empty message.
conversation.message({}, processResponse);

// Process the conversation response.
function processResponse(err, response) {
    if (err) {
        console.error(err); // something went wrong
        return;
    }

    var endConversation = false;

    // Check for action flags.
    if (response.output.action === 'display_time') {
        // User asked what time it is, so we output the local system time.
        console.log('The current time is ' + new Date().toLocaleTimeString());
    } else if (response.output.action === 'end_conversation') {
        // User said goodbye, so we're done.
        console.log(response.output.text[0]);
        endConversation = true;
    } else {
        // Display the output from dialog, if any.
        if (response.output.text.length != 0) {
            console.log(response.output.text[0]);
        }
    }

    // If we're not done, prompt for the next round of input.
    if (!endConversation) {
        var newMessageFromUser = prompt('>> ');
        conversation.message({
            input: { text: newMessageFromUser },
            // Send back the context to maintain state.
            context : response.context,
        }, processResponse)
    }
}