angular.module('portainer.docker')
  .controller('CreateNetworkController', ['$q', '$scope', '$state', 'PluginService', 'Notifications', 'NetworkService', 'LabelHelper', 'Authentication', 'ResourceControlService', 'FormValidator', 'HttpRequestHelper',
    function ($q, $scope, $state, PluginService, Notifications, NetworkService, LabelHelper, Authentication, ResourceControlService, FormValidator, HttpRequestHelper) {

      $scope.formValues = {
        DriverOptions: [],
        Subnet: '',
        Gateway: '',
        IPRange: '',
        AuxAddress: '',
        Labels: [],
        AccessControlData: new AccessControlFormData(),
        NodeName: null,
        Macvlan: new MacvlanFormData()
      };

      $scope.state = {
        formValidationError: '',
        actionInProgress: false
      };

      $scope.availableNetworkDrivers = [];

      $scope.config = {
        Driver: 'bridge',
        CheckDuplicate: true,
        Internal: false,
        Attachable: false,
        // Force IPAM Driver to 'default', should not be required.
        // See: https://github.com/docker/docker/issues/25735
        IPAM: {
          Driver: 'default',
          Config: []
        },
        Labels: {}
      };

      $scope.addDriverOption = function () {
        $scope.formValues.DriverOptions.push({
          name: '',
          value: ''
        });
      };

      $scope.removeDriverOption = function (index) {
        $scope.formValues.DriverOptions.splice(index, 1);
      };

      $scope.addLabel = function () {
        $scope.formValues.Labels.push({
          key: '',
          value: ''
        });
      };

      $scope.removeLabel = function (index) {
        $scope.formValues.Labels.splice(index, 1);
      };

      function prepareIPAMConfiguration(config) {
        if ($scope.formValues.Subnet) {
          var ipamConfig = {};
          ipamConfig.Subnet = $scope.formValues.Subnet;
          if ($scope.formValues.Gateway) {
            ipamConfig.Gateway = $scope.formValues.Gateway;
          }
          if ($scope.formValues.IPRange) {
            ipamConfig.IPRange = $scope.formValues.IPRange;
          }
          if ($scope.formValues.AuxAddress) {
            ipamConfig.AuxAddress = $scope.formValues.AuxAddress;
          }
          config.IPAM.Config.push(ipamConfig);
        }
      }

      function prepareDriverOptions(config) {
        var options = {};
        $scope.formValues.DriverOptions.forEach(function (option) {
          options[option.name] = option.value;
        });
        config.Options = options;
      }

      function prepareLabelsConfig(config) {
        config.Labels = LabelHelper.fromKeyValueToLabelHash($scope.formValues.Labels);
      }

      function prepareConfiguration() {
        var config = angular.copy($scope.config);
        prepareIPAMConfiguration(config);
        prepareDriverOptions(config);
        prepareLabelsConfig(config);
        return config;
      }

      function modifyNetworkConfigurationForMacvlanConfigOnly(config) {
        config.Internal = null;
        config.Attachable = null;
        config.ConfigOnly = true;
        config.Options.parent = $scope.formValues.Macvlan.ParentNetworkCard;
      }

      function modifyNetworkConfigurationForMacvlanConfigFrom(config, selectedNetworkConfig) {
        config.ConfigFrom = {
          Network: selectedNetworkConfig.Name
        };
        if ($scope.applicationState.endpoint.mode.provider === 'DOCKER_SWARM_MODE') {
          config.Scope = 'swarm';
        } else {
          config.Scope = 'local';
        }
      }

      function validateForm(accessControlData, isAdmin) {
        $scope.state.formValidationError = '';
        var error = '';
        error = FormValidator.validateAccessControl(accessControlData, isAdmin);

        if (error) {
          $scope.state.formValidationError = error;
          return false;
        }
        return true;
      }

      function createNetwork(context) {
        HttpRequestHelper.setPortainerAgentTargetHeader(context.nodeName);

        $scope.state.actionInProgress = true;
        NetworkService.create(context.networkConfiguration)
          .then(function success(data) {
            var networkIdentifier = data.Id;
            var userId = context.userDetails.ID;
            return ResourceControlService.applyResourceControl('network', networkIdentifier, userId, context.accessControlData, []);
          })
          .then(function success() {
            Notifications.success('Network successfully created');
            if (context.reload) {
              $state.go('docker.networks', {}, {
                reload: true
              });
            }
          })
          .catch(function error(err) {
            Notifications.error('Failure', err, 'An error occured during network creation');
          })
          .finally(function final() {
            $scope.state.actionInProgress = false;
          });
      }

      $scope.create = function () {
        var networkConfiguration = prepareConfiguration();
        var accessControlData = $scope.formValues.AccessControlData;
        var userDetails = Authentication.getUserDetails();
        var isAdmin = userDetails.role === 1;

        if (!validateForm(accessControlData, isAdmin)) {
          return;
        }

        var creationContext = {
          nodeName: $scope.formValues.NodeName,
          networkConfiguration: networkConfiguration,
          userDetails: userDetails,
          accessControlData: accessControlData,
          reload: true
        };

        if ($scope.config.Driver === 'macvlan') {
          if ($scope.formValues.Macvlan.Scope === 'local') {
            modifyNetworkConfigurationForMacvlanConfigOnly(networkConfiguration);
          } else if ($scope.formValues.Macvlan.Scope === 'swarm') {
            var selectedNetworkConfig = $scope.formValues.Macvlan.SelectedNetworkConfig;
            modifyNetworkConfigurationForMacvlanConfigFrom(networkConfiguration, selectedNetworkConfig);
            creationContext.nodeName = selectedNetworkConfig.NodeName;
          }
        }

        if ($scope.config.Driver === 'macvlan' && $scope.formValues.Macvlan.Scope === 'local' &&
          $scope.applicationState.endpoint.mode.agentProxy && $scope.applicationState.endpoint.mode.provider === 'DOCKER_SWARM_MODE') {
          var selectedNodes = $scope.formValues.Macvlan.DatatableState.selectedItems;
          selectedNodes.forEach(function (node, idx) {
            creationContext.nodeName = node.Hostname;
            creationContext.reload = idx === selectedNodes.length - 1 ? true : false;
            createNetwork(creationContext);
          });
        } else {
          createNetwork(creationContext);
        }
      };

      function initView() {
        var apiVersion = $scope.applicationState.endpoint.apiVersion;

        PluginService.networkPlugins(apiVersion < 1.25)
          .then(function success(data) {
            $scope.availableNetworkDrivers = data;
          })
          .catch(function error(err) {
            Notifications.error('Failure', err, 'Unable to retrieve network drivers');
          });
      }

      initView();
    }
  ]);