var settings;

const LocalRouter = require("./localRouter");
var defaultRouter;


class Router {
    constructor(stack) {
        this.stack = stack || [];
    }
    send(source,destinationId,msg) {
        var pos = 0;
        var next = () => {
            var router = this.stack[pos++];
            if (router) {
                router.send(source,destinationId,msg,next);
            }
        }
        next();
    }
}

function init(runtime) {
    settings = runtime.settings;

    defaultRouter = new Router([
        new LocalRouter(),
        new PostMessageLogger()
    ])

}

function send(source,destinationId,msg) {
    defaultRouter.send(source,destinationId,msg);
}

module.exports = {
    init:init,
    send: send
}



class PostMessageLogger {
    constructor() {}
    send(source,destinationId,msg,next) {
        console.log(source.id.padEnd(16),"->",destinationId.padEnd(16),JSON.stringify(msg));
    }
}