var relationMap = {
  '1': '父',
  '2': '母',
  '3': '祖父',
  '4': '祖母'
};

var maritalStatusMap = {
  '0': '未知',
  '1': '未婚',
  '2': '已婚',
  '3': '离异/丧偶'
};

var ancestorLabels = ['父/母', '祖父/祖母', '曾祖父', '高祖父', '天祖父', '烈祖父'];

var childOrderNums = ['', '长', '次', '三', '四', '五', '六', '七', '八', '九', '十'];

function getRelationText(relation) {
  return relationMap['' + relation] || '';
}

function getSiblingType(relation) {
  var r = '' + relation;
  if (r === '11') return '兄';
  if (r === '12') return '姐';
  return '弟/妹';
}

function getMaritalStatusText(status) {
  return maritalStatusMap['' + status] || '未知';
}

function getAncestorLabel(depth) {
  var d = depth < 0 ? 0 : depth;
  if (d < ancestorLabels.length) return ancestorLabels[d];
  return '第' + (d + 1) + '代祖先';
}

function getChildOrderText(order) {
  if (!order || order < 1) return '子';
  if (order < childOrderNums.length) return childOrderNums[order] + '子';
  return order + '子';
}

function shortName(name, simplified) {
  if (simplified && simplified !== name) {
    return name + '\n(' + simplified + ')';
  }
  return name;
}

module.exports = {
  getRelationText: getRelationText,
  getSiblingType: getSiblingType,
  getMaritalStatusText: getMaritalStatusText,
  getAncestorLabel: getAncestorLabel,
  getChildOrderText: getChildOrderText,
  shortName: shortName
};