const path = require('path');
var Nightmare = require("nightmare");
var Promise = require("bluebird");
var fs = Promise.promisifyAll(require("fs"));
var _ = require("underscore");

var conf = JSON.parse(fs.readFileSync(path.join(__dirname, "conf.json"), 'utf8'));
var nightmare_conf = {
    show: true, openDevTools: true, webPreferences: {
        partition: 'nopersist'
    },
    typeInterval: 1
};
var password = conf.password;
var username = conf.username;
var baseURL = conf.url;

var rootProjectDir = process.argv[2];


function readFilePromise(file) {

    return new Promise((f, r) => {

        fs.readFile(file, "utf-8", function (err, data) {
            if (err) {
                console.log("Error reading file");
                r(err);
                return;
            }
            f(data);
        });

    });

}

var names = ["code.html", "style.scss", "client.js", "server.js"];

var updater = function () {

    var currentID;

    var nightmare = new Nightmare(nightmare_conf);


    function updateNSave(widgetName) {
        console.log("Path = " + path.join(rootProjectDir, widgetName));
        Promise.all(names.map((n) => readFilePromise(path.join(rootProjectDir, widgetName, n))))
            .then((contents) => {
                return nightmare.evaluate(function (contents) {
                    var editors = $("div.CodeMirror");
                    $(editors[0]).prop("CodeMirror").setValue(contents[0]);
                    $(editors[1]).prop("CodeMirror").setValue(contents[1]);
                    $(editors[2]).prop("CodeMirror").setValue(contents[2]);
                    $(editors[3]).prop("CodeMirror").setValue(contents[3]);
                }, contents);
            })
            .then(() => nightmare.evaluate(() => $("button[ng-click='c.save()']").click()));

    }

    return function (name) {

        var id = conf.pages.filter((p) => p.name == name)[0]["id"];

        if (id === currentID) {
            updateNSave(name);
        }
        else {
            nightmare.halt(()=>undefined,()=>{
                nightmare = new Nightmare(nightmare_conf);
                nightmare.goto(baseURL + id)
                .wait("#username")
                .type("input#username", username)
                .type("input#password", password)
                .click("button.btn-block")
                .wait("input[ng-model='section.display']")
                .evaluate(function () {
                    $("input.ng-empty[ng-model='section.display']").click()
                }).then(() => updateNSave(name))
                .then(() => {
                    currentID = id;
                });
            })
        }

    }

}();


var watchers = conf.pages
    .map(e => e.name)
    .forEach((dir) => {
        try {
            fs.watch(path.join(rootProjectDir, dir), (action, filename) => {
                console.log("Ac = " + action + " file = " + filename + " in dir " + dir);
                updater(dir);
            });
        }
        catch (err) {
            console.log("Couldn't find dir " + dir);
        }

    });