const Joi        = require('joi');
const mongoose   = require('mongoose');
const Schema     = mongoose.Schema;
const hash       = require('./hash');
const HASHLEN    = 7;

const baseUrl    = process.env.BASE_URL || 'shrt.in';

const schema = new Schema({
  shrt: String,
  url: String,
});
const Shrt = mongoose.model('Shrt', schema);

module.exports = [
  {
    method: 'GET',
    path: '/',
    handler(request, reply) {
      reply.file('views/index.html');
    }
  },
  {
    method: 'GET',
    path: '/public/{file}',
    handler(request, reply) {
      reply.file(`public/${request.params.file}`);
    }
  },
  {
    method: 'POST',
    path: '/new',
    handler(request, reply) {
      const uid = hash(HASHLEN);
      const r = new Shrt({
        short: `${baseUrl}/${uniqueID}`,
        url: request.payload.url,
      });

      r.save((err, redir) => err ? reply(err) : reply(redir));
    },
    config: {
      validate: {
        payload: {
          url: Joi.string()
                  .regex(/^https?:\/\/([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/)
                  .required()
        }
      }
    }
  },
  {
    method: 'GET',
    path:'/{hash}',
    handler(request, reply) {
      const query = {
        'short': `${baseUrl}/${request.params.hash}`
      };
      Shrt.findOne(query, (err, shrt) => {
        if (err) return reply(err);
        else if (shrt) reply().redirect(shrt.url);
        else reply.file('views/404.html').code(404);
      });
    }
  },
];