const chokidar = require('chokidar');
const fs = require('fs');
const path = require('path');
var createError = require('http-errors');
var express = require('express');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var indexRouter = require('./routes/index');
var apiRouter = require('./routes/api');
var config = require("./config.json");

const watcher = chokidar.watch(config.DXMemorialImageDirectory, {
    persistent: true
  });

watcher
  .on('add', (filePath) => {
    const isImage = /\.(jpe?g|png|gif)$/i.test(filePath);
    if (isImage) {
      const fileName = path.basename(filePath);
      const destPath = path.join(config.imageFolder, fileName);
      fs.access(destPath, (err) => {
        if (err) {
          fs.copyFile(filePath, destPath, (err) => {
            if (err) throw err;
            console.log(`${fileName} Imported.`);
          });
        } else {
        }
      });
    }
  })
  .on('error', (error) => {
    console.error(`Watcher error: ${error}`);
  });

  // readFileSync function must use __dirname get current directory
// require use ./ refer to current directory.

const options = {
};

var app = express()

 // Create HTTPs server.

//var httpsServer = https.createServer(options, app);

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
app.use(express.static(__dirname + '/public'));
app.use(logger('dev'));
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.json({ extended: false }));


app.use('/', indexRouter);
app.use('/api/', apiRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

var PORT = process.env.PORT || 8000

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

app.listen(PORT, () => console.log(`Server is running in port ${PORT}`));

module.exports = app;