var express = require('express');
var flash = require('express-flash');
var path = require('path');
var passport = require('passport');
var Strategy = require('passport-local').Strategy;
var async = require('async');
var fs = require('fs');
var markdown = require( "markdown" ).markdown;
var moment = require("moment");

// Make ourselves a nice little express app.
var app = express();

// Get connected to our database
var MongoClient = require('mongodb').MongoClient;

// Include some other JS
Post = require('./post.js');
User = require('./user.js');
Category = require('./category.js');
Static = require('./static.js');
var database = require('./db.js');
var genPhotos = require('./genPhotos.js');

// Get config variables
var config = require('./config.js').config;

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(require('serve-favicon')(path.join(__dirname, 'public',
//    'favicon.ico')));
app.use(flash());
app.use(require('morgan')('dev'));
app.use(require('body-parser').urlencoded({ extended: true }));
app.use(require('cookie-parser')());
var session = require('express-session');
var RedisStore = require('connect-redis')(session);
app.use(session({
    store: new RedisStore({
        host: 'localhost',
        port: 6379,
    }),
    secret: 'amdasdfasdf',
    resave: true,
    saveUninitialized: true
}));


app.use(express.static(path.join(__dirname, 'public')));

// Setup authentication via twitter.
passport.use(new Strategy(
    function(username, password, done) {
        User.verify(username, password, function(err, user) {
            console.log("Verifying user: " + username);
            if (!user) { return done(null, false); }
            return done(null, user);
        });
    }
));

passport.serializeUser(function(user, done) {
//      console.log("Serializing user: "+user.username);
    done(null, user.username);
});

passport.deserializeUser(function(username, done) {
//     console.log("Deserializing user: "+username);
    User.getByUsername(username, function (err, user) {
        if (!user) { return done(false); }
        done(null, user);
    });
});

app.use(passport.initialize());
app.use(passport.session());

// Require logins for all admin pages other pages have to be handled separately.
app.all('/admin*', require('connect-ensure-login').ensureLoggedIn());

// Pull in all our external routes.
require('./routes-post.js')(app);
require('./routes-photo.js')(app);
require('./routes-preview.js')(app);

// User management routing
app.get('/login', function(req, res) {
    res.render('admin-login', {user: req.user});
});

app.post('/login',
    passport.authenticate('local', { successReturnToOrRedirect: '/admin', failureRedirect: '/login' })
);

app.get('/logout', function(req, res) {
    req.logout();
    res.redirect('/');
}
);

// Admin page to view all the items that need to be uploaded.
app.get('/admin/view/uploads',
    function(req, res, next) {
        Post.getNeedsUpload(function (err, posts) {
            if (err) console.log(err);
            res.render('admin-view-uploads', {
                successNotice: req.flash('successNotice'),
                failureNotice: req.flash('failureNotice'),
                posts: posts,
                user: req.user
            });
        });
    }
);

// Admin page to view all the items that need to be built.
app.get('/admin/view/builds',
    function(req, res, next) {
        Post.getNeedsBuild(function (err, posts) {
            if (err) console.log(err);
            res.render('admin-view-builds', {
                successNotice: req.flash('successNotice'),
                failureNotice: req.flash('failureNotice'),
                posts: posts,
                user: req.user
            });
        });
    }
);

// Admin dashboard page.
app.get('/admin',
    function(req, res, next) {
        Post.countPosts(function (err, postCount) {
            Category.countCategories(function (err, categoryCount) {
                Post.getLastBuildDate(function (err, lastBuildDate) {
                    Post.getLastUploadDate( function (err, lastUploadDate) {
                        res.render('admin-dashboard', {
                            successNotice: req.flash('successNotice'),
                            failureNotice: req.flash('failureNotice'),
                            categories: categoryCount,
                            posts: postCount,
                            galleries: "###",
                            photos: "###",
                            tags: "###",
                            regenerateDate: moment(lastBuildDate).format("YYYY-MM-DD HH:mm"),
                            uploadDate: moment(lastUploadDate).format("YYYY-MM-DD HH:mm"),
                            user: req.user});
                    })
                })
            })
        })
    }
);


// Have to have some sort of home page.
app.get('/', function(req, res, next) {
  res.render('admin-index', { title: 'AMDavidson.com', user: req.user });
}
);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
if (app.get('env') === 'development') {
  app.locals.pretty = true;
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('admin-error', {
      message: err.message,
      error: err,
      user: req.user
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    user: req.user,
    error: {}
  });
});


app.set('port', process.env.PORT || 3000)
var server = require('http').createServer(app)

process.on('uncaughtException', function (exception) {
  console.log(exception);
});


MongoClient.connect('mongodb://localhost/crunch', function(err, database) {
    if (!err) {
        global.db = database;
        server.listen(app.get('port'), function() {
            console.log("Server listening on port " + app.get('port'));
        });
    }
});