//global variables
var countriesNeedIDNumber = [];
var countriesNeedZipCode = [];
var states = [];

$(document).ready(function() {
  setCountries();
  bindStateInputAndUpdate();
  bindZipcode();
  bindCheckbox();
  $(document).on('click', '#invoice_address', function(e) {
    bindCheckbox();
  });
});

function setCountries() {
  if (typeof countries !== 'undefined' && countries) {
    var countriesPS = [];
    for (var i in countries) {
      var id_country = countries[i]['id_country'];
      if (typeof countries[i]['states'] !== 'undefined' && parseInt(countries[i]['contains_states'])) {
        countriesPS[id_country] = [];
        for (var j in countries[i]['states'])
          countriesPS[parseInt(id_country)].push({'id': parseInt(countries[i]['states'][j]['id_state']), 'name': countries[i]['states'][j]['name']});
      }

      if (typeof countries[i]['need_identification_number'] !== 'undefined' && parseInt(countries[i]['need_identification_number']) > 0)
        countriesNeedIDNumber.push(parseInt(countries[i]['id_country']));
      if (typeof countries[i]['need_zip_code'] !== 'undefined' && parseInt(countries[i]['need_zip_code']) > 0)
        countriesNeedZipCode[parseInt(countries[i]['id_country'])] = countries[i]['zip_code_format'];
    }
  }
  states = countriesPS;
}

function bindCheckbox() {
  if ($('#invoice_address:checked').length > 0) {
    $('#opc_invoice_address').slideDown('slow');
    if ($('#company_invoice').val() == '')
      $('#vat_number_block_invoice').hide();
  } else {
    $('#opc_invoice_address').slideUp('slow');
  }
  updateState('invoice');
}

function bindZipcode() {
  $(document).on('keyup', 'input[name^=postcode]', function(e) {
    var char = String.fromCharCode(e.keyCode);
    if (/[a-zA-Z]/.test(char))
      $.trim($(this).val($(this).val().toUpperCase()));
  });
}

function bindStateInputAndUpdate() {
  $('.id_state, .dni, .postcode').css({'display': 'none'});
  updateState();
  updateNeedIDNumber();
  updateZipCode();

  $(document).on('change', '#id_country', function(e) {
    updateState();
    updateNeedIDNumber();
    updateZipCode();
    if (typeof validate_field !== 'undefined')
      validate_field('#postcode');
  });

  if ($('#id_country_invoice').length !== 0) {
    $(document).on('change', '#id_country_invoice', function(e) {
      updateState('invoice');
      updateNeedIDNumber('invoice');
      updateZipCode('invoice');
      if (typeof validate_field !== 'undefined')
        validate_field('#postcode_invoice');
    });
    updateState('invoice');
    updateNeedIDNumber('invoice');
    updateZipCode('invoice');
  }

  if (typeof idSelectedState !== 'undefined' && idSelectedState)
    $('.id_state option[value=' + idSelectedState + ']').prop('selected', true);
  if (typeof idSelectedStateInvoice !== 'undefined' && idSelectedStateInvoice)
    $('.id_state_invoice option[value=' + idSelectedStateInvoice + ']').prop('selected', true);
}

function updateState(suffix) {
  var selectId = '#id_state' + (typeof suffix !== 'undefined' ? '_' + suffix : '');
  var select = $(selectId);

  if (suffix === 'invoice') {
    var invoiceAddressShown = ($('#invoice_address:checked').length > 0);
    if (! invoiceAddressShown) {
      select.removeAttr('required');
      return;
    }
  }

  $(selectId + ' option:not(:first-child)').remove();
  if (typeof countries !== 'undefined')
    var state_list = states[parseInt($('#id_country' + (typeof suffix !== 'undefined' ? '_' + suffix : '')).val())];
  if (typeof state_list !== 'undefined') {
    select.attr('required', 'required');

    $(state_list).each(function(key, item) {
      select.append('<option value="' + parseInt(item.id) + '">' + item.name + '</option>');
    });
    $('.id_state' + (typeof suffix !== 'undefined' ? '_' + suffix : '') + ':hidden').fadeIn('slow');
  } else {
    select.removeAttr('required');
    $('.id_state' + (typeof suffix !== 'undefined' ? '_' + suffix : '')).fadeOut('fast');
  }
}

function updateNeedIDNumber(suffix) {
  var id_country = parseInt($('#id_country' + (typeof suffix !== 'undefined' ? '_' + suffix : '')).val());
  if (in_array(id_country, countriesNeedIDNumber)) {
    $('.dni' + (typeof suffix !== 'undefined' ? '_' + suffix : '') + ':hidden').fadeIn('slow');
  } else
    $('.dni' + (typeof suffix !== 'undefined' ? '_' + suffix : '')).fadeOut('fast');
}

function updateZipCode(suffix) {
  var id_country = parseInt($('#id_country' + (typeof suffix !== 'undefined' ? '_' + suffix : '')).val());
  if (typeof countriesNeedZipCode[id_country] !== 'undefined') {
    $('.postcode' + (typeof suffix !== 'undefined' ? '_' + suffix : '') + ':hidden').fadeIn('slow');
  } else
    $('.postcode' + (typeof suffix !== 'undefined' ? '_' + suffix : '')).fadeOut('fast');
}