var Collection = require('./collection');
var Operation = require('./operation');
var Shape = require('./shape');
var Paginator = require('./paginator');
var ResourceWaiter = require('./resource_waiter');
var metadata = require('../../apis/metadata.json');

var util = require('../util');
var property = util.property;
var memoizedProperty = util.memoizedProperty;

function Api(api, options) {
  var self = this;
  api = api || {};
  options = options || {};
  options.api = this;

  api.metadata = api.metadata || {};

  var serviceIdentifier = options.serviceIdentifier;
  delete options.serviceIdentifier;

  property(this, 'isApi', true, false);
  property(this, 'apiVersion', api.metadata.apiVersion);
  property(this, 'endpointPrefix', api.metadata.endpointPrefix);
  property(this, 'signingName', api.metadata.signingName);
  property(this, 'globalEndpoint', api.metadata.globalEndpoint);
  property(this, 'signatureVersion', api.metadata.signatureVersion);
  property(this, 'jsonVersion', api.metadata.jsonVersion);
  property(this, 'targetPrefix', api.metadata.targetPrefix);
  property(this, 'protocol', api.metadata.protocol);
  property(this, 'timestampFormat', api.metadata.timestampFormat);
  property(this, 'xmlNamespaceUri', api.metadata.xmlNamespace);
  property(this, 'abbreviation', api.metadata.serviceAbbreviation);
  property(this, 'fullName', api.metadata.serviceFullName);
  property(this, 'serviceId', api.metadata.serviceId);
  if (serviceIdentifier && metadata[serviceIdentifier]) {
      property(this, 'xmlNoDefaultLists', metadata[serviceIdentifier].xmlNoDefaultLists, false);
  }

  memoizedProperty(this, 'className', function() {
    var name = api.metadata.serviceAbbreviation || api.metadata.serviceFullName;
    if (!name) return null;

    name = name.replace(/^Amazon|AWS\s*|\(.*|\s+|\W+/g, '');
    if (name === 'ElasticLoadBalancing') name = 'ELB';
    return name;
  });

  function addEndpointOperation(name, operation) {
    if (operation.endpointoperation === true) {
      property(self, 'endpointOperation', util.string.lowerFirst(name));
    }
    if (operation.endpointdiscovery && !self.hasRequiredEndpointDiscovery) {
      property(
        self,
        'hasRequiredEndpointDiscovery',
        operation.endpointdiscovery.required === true
      );
    }
  }

  property(this, 'operations', new Collection(api.operations, options, function(name, operation) {
    return new Operation(name, operation, options);
  }, util.string.lowerFirst, addEndpointOperation));

  property(this, 'shapes', new Collection(api.shapes, options, function(name, shape) {
    return Shape.create(shape, options);
  }));

  property(this, 'paginators', new Collection(api.paginators, options, function(name, paginator) {
    return new Paginator(name, paginator, options);
  }));

  property(this, 'waiters', new Collection(api.waiters, options, function(name, waiter) {
    return new ResourceWaiter(name, waiter, options);
  }, util.string.lowerFirst));

  if (options.documentation) {
    property(this, 'documentation', api.documentation);
    property(this, 'documentationUrl', api.documentationUrl);
  }
}

/**
 * @api private
 */
module.exports = Api;