var Connect = require('connect');
var ConnectSt = require('st');
var Fs = require('fs');
var Http = require('http');
var Route = require('connect-route');
var Winston = require('winston');

var DocumentHandler = require('./lib/document_handler');
var KeyGenerator = require('./lib/key_generator');
var Store = require('./lib/document_store');

// Load the configuration and set some defaults
var config = JSON.parse(Fs.readFileSync('./config.js', 'utf8'));
config.host = config.host || '127.0.0.1';
config.port = config.port || 7777;

// Set up the logger
if (config.logging) {
  try {
    Winston.remove(Winston.transports.Console);
  } catch(e) {
    // This is fine
  }
  var detail, type;
  for (var i = 0; i < config.logging.length; i++) {
    detail = config.logging[i];
    type = detail.type;
    delete detail.type;
    Winston.add(Winston.transports[type], detail);
  }
}

// Configure the data store
store = new Store();

// Pick up a key generator
var keyGenerator = new KeyGenerator();

// Configure the document handler
var documentHandler = new DocumentHandler({
  store: store,
  maxLength: config.maxLength,
  keyLength: config.keyLength,
  keyGenerator: keyGenerator
});

var app = Connect();

// API
app.use(Route(function(router) {
  router.get('/raw/:id', function(request, response) {
    var key = request.params.id.split('.')[0];
    return documentHandler.handleRawGet(key, response);
  });
  router.post('/documents', function(request, response) {
    return documentHandler.handlePost(request, response);
  });
  router.get('/documents/:id', function(request, response) {
    var key = request.params.id.split('.')[0];
    return documentHandler.handleGet(key, response);
  });
}));

// Static files
app.use(ConnectSt({
  path: __dirname + '/static',
  content: { maxAge: config.staticMaxAge },
  passthrough: true,
  index: false
}));

// All the pastebin IDs
app.use(Route(function(router) {
  router.get('/:id', function(request, response, next) {
    request.sturl = '/';
    next();
  });
}));

// Index
app.use(ConnectSt({
  path: __dirname + '/static',
  content: { maxAge: config.staticMaxAge },
  index: 'index.html'
}));

Http.createServer(app).listen(config.port, config.host);

Winston.info('Listening on ' + config.host + ':' + config.port);