// ============================
// Node Requires
// ============================
const express  = require('express');
const mongoose = require('mongoose');

// const flash            = require('express-flash-2'); // flash messaging helper library
// const methodOverride   = require('method-override'); // allow UPDATE and DELETE to be routed from POST forms
// const expressSanitizer = require('express-sanitizer'); // sanitize input for injection protection

// const passport              = require('passport');
// const LocalStrategy         = require('passport-local');
// const passportLocalMongoose = require('passport-local-mongoose');

// const reload = require('reload'); // inject hot reloading browser when changes occur for development

// ============================
// Route Includes
// ============================

// Refactor routes out to here
// const indexRoutes      = require('./routes/index');
// const userRoutes       = require('./routes/user');
// const campgroundRoutes = require('./routes/campground');
// const commentRoutes    = require('./routes/comment');

// ============================
// Mongoose Connect
// ============================

const dbProtocol = 'mongodb';
const dbUser = process.env.MONGO_DB_USER || '';
const dbPassword = process.env.MONGO_DB_PASSWORD || '';
const dbUrl = process.env.MONGO_DB_URL || 'localhost/test';

const dbCredentialsProvided = (dbUser && dbPassword) ? true : false;

if (dbCredentialsProvided) {
    mongoose.connect(`${dbProtocol}://${dbUser}:${dbPassword}@${dbUrl}`);
} else {
    mongoose.connect(`${dbProtocol}://${dbUrl}`);
}

// ============================
// Mongoose Schema Requires
// ============================

// Move Models out, import them here
// const User       = require('./models/user');
// const Campground = require('./models/campground');
// const Comment    = require('./models/comment');

// const seed       = require('./seed');

// seed.seedDB();

// ============================
// Express Setup
// ============================

const app = express();

app.set('ip', process.env.IP || 'localhost');
app.set('port', process.env.PORT || 3000);

// View Engine
app.set('view engine', 'ejs');

// Body Parsing
app.use(express.urlencoded({extended: true}));

// Sanitize the incoming body
// app.use(expressSanitizer());

// Static File Serve Dir
app.use(express.static(__dirname + '/public'));

// Method Override
// app.use(methodOverride('_method'));

// Session
app.use(require('express-session')({
    secret: 'n33BjOLuNncxtuYXpbux',
    resave: false,
    saveUninitialized: false,
}));

// app.use(flash());

// app.locals.moment = require('moment'); allow use of moment library client side

// ============================
// Passport Setup
// ============================

// Startup Passport
// app.use(passport.initialize());
// app.use(passport.session());

// Config Passport
// passport.use(new LocalStrategy(User.authenticate())); // -- maybe unnecessary
// passport.use(User.createStrategy());
// passport.serializeUser(User.serializeUser());
// passport.deserializeUser(User.deserializeUser());

// ============================
// Misc Setup
// ============================

// Include the user data in each response for the render template
app.use((req, res, next) => {
    if (typeof req.user === 'undefined') {
        res.locals.user = undefined;
    } else {
        res.locals.user = {
            id: req.user._id,
            username: req.user.username,
            name: req.user.displayName,
            isAdmin: req.user.isAdmin
        };
    }

    next();
});

// ============================
// Routes
// ============================

// app.use(indexRoutes);
// app.use('/users', userRoutes);
// app.use('/campgrounds', campgroundRoutes);
// app.use('/campgrounds/:id/comments', commentRoutes);

// ============================
// Server Start / Listen
// ============================
// reload(app);

app.listen(app.get('port'), app.get('ip'), () => {
    console.log('Server starting on '+app.get('ip')+':'+app.get('port'));
});