'use strict';

var chai = require('chai');
var expect = chai.expect;
chai.should();

var parse = require('../').parse;

describe('parse', function(){

  it('using connection string in client constructor', function(){
    var subject = parse('postgres://brian:pw@boom:381/lala');
    subject.user.should.equal('brian');
    subject.password.should.equal( 'pw');
    subject.host.should.equal( 'boom');
    subject.port.should.equal( '381');
    subject.database.should.equal( 'lala');
  });

  it('escape spaces if present', function(){
    var subject = parse('postgres://localhost/post gres');
    subject.database.should.equal('post gres');
  });

  it('do not double escape spaces', function(){
    var subject = parse('postgres://localhost/post%20gres');
    subject.database.should.equal('post gres');
  });

  it('initializing with unix domain socket', function(){
    var subject = parse('/var/run/');
    subject.host.should.equal('/var/run/');
  });

  it('initializing with unix domain socket and a specific database, the simple way', function(){
    var subject = parse('/var/run/ mydb');
    subject.host.should.equal('/var/run/');
    subject.database.should.equal('mydb');
  });

  it('initializing with unix domain socket, the health way', function(){
    var subject = parse('socket:/some path/?db=my[db]&encoding=utf8');
    subject.host.should.equal('/some path/');
    subject.database.should.equal('my[db]', 'must to be escaped and unescaped trough "my%5Bdb%5D"');
    subject.client_encoding.should.equal('utf8');
  });

  it('initializing with unix domain socket, the escaped health way', function(){
    var subject = parse('socket:/some%20path/?db=my%2Bdb&encoding=utf8');
    subject.host.should.equal('/some path/');
    subject.database.should.equal('my+db');
    subject.client_encoding.should.equal('utf8');
  });

  it('password contains  < and/or >  characters', function(){
    var sourceConfig = {
      user:'brian',
      password: 'hello<ther>e',
      port: 5432,
      host: 'localhost',
      database: 'postgres'
    };
    var connectionString = 'postgres://' + sourceConfig.user + ':' + sourceConfig.password + '@' + sourceConfig.host + ':' + sourceConfig.port + '/' + sourceConfig.database;
    var subject = parse(connectionString);
    subject.password.should.equal(sourceConfig.password);
  });

  it('password contains colons', function(){
    var sourceConfig = {
      user:'brian',
      password: 'hello:pass:world',
      port: 5432,
      host: 'localhost',
      database: 'postgres'
    };
    var connectionString = 'postgres://' + sourceConfig.user + ':' + sourceConfig.password + '@' + sourceConfig.host + ':' + sourceConfig.port + '/' + sourceConfig.database;
    var subject = parse(connectionString);
    subject.password.should.equal(sourceConfig.password);
  });

  it('username or password contains weird characters', function(){
    var strang = 'pg://my f%irst name:is&%awesome!@localhost:9000';
    var subject = parse(strang);
    subject.user.should.equal('my f%irst name');
    subject.password.should.equal('is&%awesome!');
    subject.host.should.equal('localhost');
  });

  it('url is properly encoded', function(){
    var encoded = 'pg://bi%25na%25%25ry%20:s%40f%23@localhost/%20u%2520rl';
    var subject = parse(encoded);
    subject.user.should.equal('bi%na%%ry ');
    subject.password.should.equal('s@f#');
    subject.host.should.equal('localhost');
    subject.database.should.equal(' u%20rl');
  });

  it('relative url sets database', function(){
    var relative = 'different_db_on_default_host';
    var subject = parse(relative);
    subject.database.should.equal('different_db_on_default_host');
  });

  it('no pathname returns null database', function () {
    var subject = parse('pg://myhost');
    (subject.database === null).should.equal(true);
  });

  it('pathname of "/" returns null database', function () {
    var subject = parse('pg://myhost/');
    subject.host.should.equal('myhost');
    (subject.database === null).should.equal(true);
  });

  it('configuration parameter application_name', function(){
    var connectionString = 'pg:///?application_name=TheApp';
    var subject = parse(connectionString);
    subject.application_name.should.equal('TheApp');
  });

  it('configuration parameter fallback_application_name', function(){
    var connectionString = 'pg:///?fallback_application_name=TheAppFallback';
    var subject = parse(connectionString);
    subject.fallback_application_name.should.equal('TheAppFallback');
  });

  it('configuration parameter fallback_application_name', function(){
    var connectionString = 'pg:///?fallback_application_name=TheAppFallback';
    var subject = parse(connectionString);
    subject.fallback_application_name.should.equal('TheAppFallback');
  });

  it('configuration parameter ssl=true', function(){
    var connectionString = 'pg:///?ssl=true';
    var subject = parse(connectionString);
    subject.ssl.should.equal(true);
  });

  it('configuration parameter ssl=1', function(){
    var connectionString = 'pg:///?ssl=1';
    var subject = parse(connectionString);
    subject.ssl.should.equal(true);
  });

  it('set ssl', function () {
     var subject = parse('pg://myhost/db?ssl=1');
     subject.ssl.should.equal(true);
   });

   it('allow other params like max, ...', function () {
     var subject = parse('pg://myhost/db?max=18&min=4');
     subject.max.should.equal('18');
     subject.min.should.equal('4');
   });


  it('configuration parameter keepalives', function(){
    var connectionString = 'pg:///?keepalives=1';
    var subject = parse(connectionString);
    subject.keepalives.should.equal('1');
  });

  it('unknown configuration parameter is passed into client', function(){
    var connectionString = 'pg:///?ThereIsNoSuchPostgresParameter=1234';
    var subject = parse(connectionString);
    subject.ThereIsNoSuchPostgresParameter.should.equal('1234');
  });

  it('do not override a config field with value from query string', function(){
    var subject = parse('socket:/some path/?db=my[db]&encoding=utf8&client_encoding=bogus');
    subject.host.should.equal('/some path/');
    subject.database.should.equal('my[db]', 'must to be escaped and unescaped through "my%5Bdb%5D"');
    subject.client_encoding.should.equal('utf8');
  });


  it('return last value of repeated parameter', function(){
    var connectionString = 'pg:///?keepalives=1&keepalives=0';
    var subject = parse(connectionString);
    subject.keepalives.should.equal('0');
  });
});