/// <reference path='convict.d.ts' />
/// <reference path='../validator/validator.d.ts' />

import convict = require('convict');
import validator = require('validator');

// define a schema

// straight from the convict tests
const format : convict.Format = {
  name: 'float-percent',
  validate: function(val) {
    if (val !== 0 && (!val || val > 1 || val < 0)) {
      throw new Error('must be a float between 0 and 1, inclusive');
    }
  },
  coerce: function(val) {
    return +(<string> val);
  }
};




convict.addFormat(format);
convict.addFormats({
      prime: {
        validate: function(val) {
          function isPrime(n: number) {
            if (n <= 1) return false; // zero and one are not prime
            for (var i=2; i*i <= n; i++) {
              if (n % i === 0) return false;
            }
            return true;
          }
          if (!isPrime(val)) throw new Error('must be a prime number');
        },
        coerce: function(val) {
          return parseInt(val, 10);
        }
      }
    });


var conf = convict({
  env: {
    doc: 'The applicaton environment.',
    format: ['production', 'development', 'test'],
    default: 'development',
    env: 'NODE_ENV',
    arg: 'node-env',
  },
  ip: {
    doc: 'The IP address to bind.',
    format: 'ipaddress',
    default: '127.0.0.1',
    env: 'IP_ADDRESS',
  },
  port: {
    doc: 'The port to bind.',
    format: 'port',
    default: 0,
    env: 'PORT',
    arg: 'port',
  },
  key: {
    doc: "API key",
    format: (val: string) => validator.isUUID(val),
    default: '01527E56-8431-11E4-AF91-47B661C210CA'
  },
  db: {
    ip: {
      doc: 'The IP address to bind.',
      format: 'ipaddress',
      default: '127.0.0.1',
      env: 'IP_ADDRESS',
    },
    port: {
      doc: 'The port to bind.',
      format: 'port',
      default: 0,
      env: 'PORT',
      arg: 'port',
    }
  },
  primeNumber: {
    format: 'prime',
    default: 17
  },
  percentNumber: {
    format: 'float-percent',
    default: 0.5
  },

});


// load environment dependent configuration

var env = conf.get('env');
var dbip = conf.get('db.ip');
conf.loadFile('./config/' + env + '.json');
conf.loadFile(['./configs/always.json', './configs/sometimes.json']);

// perform validation

conf.validate();

var port: number = conf.default('port');

if (conf.has('key')) {
  conf.set('the.awesome', true);
  conf.load({
    thing: {
      a: 'b'
    }
  });
}

conf.getSchema();
conf.getProperties();
conf.getSchemaString();
conf.toString();

// vim:et:sw=2:ts=2