angular.module('portainer.docker')
.controller('CreateServiceController', ['$q', '$scope', '$state', '$timeout', 'Service', 'ServiceHelper', 'ConfigService', 'ConfigHelper', 'SecretHelper', 'SecretService', 'VolumeService', 'NetworkService', 'ImageHelper', 'LabelHelper', 'Authentication', 'ResourceControlService', 'Notifications', 'FormValidator', 'PluginService', 'RegistryService', 'HttpRequestHelper', 'NodeService', 'SettingsService',
function ($q, $scope, $state, $timeout, Service, ServiceHelper, ConfigService, ConfigHelper, SecretHelper, SecretService, VolumeService, NetworkService, ImageHelper, LabelHelper, Authentication, ResourceControlService, Notifications, FormValidator, PluginService, RegistryService, HttpRequestHelper, NodeService, SettingsService) {

  $scope.formValues = {
    Name: '',
    Image: '',
    Registry: {},
    Mode: 'replicated',
    Replicas: 1,
    Command: '',
    EntryPoint: '',
    WorkingDir: '',
    User: '',
    Env: [],
    Labels: [],
    ContainerLabels: [],
    Volumes: [],
    Network: '',
    ExtraNetworks: [],
    HostsEntries: [],
    Ports: [],
    Parallelism: 1,
    PlacementConstraints: [],
    PlacementPreferences: [],
    UpdateDelay: '0s',
    UpdateOrder: 'stop-first',
    FailureAction: 'pause',
    Secrets: [],
    Configs: [],
    AccessControlData: new AccessControlFormData(),
    CpuLimit: 0,
    CpuReservation: 0,
    MemoryLimit: 0,
    MemoryReservation: 0,
    MemoryLimitUnit: 'MB',
    MemoryReservationUnit: 'MB',
    RestartCondition: 'any',
    RestartDelay: '5s',
    RestartMaxAttempts: 0,
    RestartWindow: '0s',
    LogDriverName: '',
    LogDriverOpts: []
  };

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

  $scope.refreshSlider = function () {
    $timeout(function () {
      $scope.$broadcast('rzSliderForceRender');
    });
  };

  $scope.addPortBinding = function() {
    $scope.formValues.Ports.push({ PublishedPort: '', TargetPort: '', Protocol: 'tcp', PublishMode: 'ingress' });
  };

  $scope.removePortBinding = function(index) {
    $scope.formValues.Ports.splice(index, 1);
  };

  $scope.addExtraNetwork = function() {
    $scope.formValues.ExtraNetworks.push({ Name: '' });
  };

  $scope.removeExtraNetwork = function(index) {
    $scope.formValues.ExtraNetworks.splice(index, 1);
  };

  $scope.addHostsEntry = function() {
    $scope.formValues.HostsEntries.push({});
  };

  $scope.removeHostsEntry = function(index) {
    $scope.formValues.HostsEntries.splice(index, 1);
  };

  $scope.addVolume = function() {
    $scope.formValues.Volumes.push({ Source: '', Target: '', ReadOnly: false, Type: 'volume' });
  };

  $scope.removeVolume = function(index) {
    $scope.formValues.Volumes.splice(index, 1);
  };

  $scope.addConfig = function() {
    $scope.formValues.Configs.push({});
  };

  $scope.removeConfig = function(index) {
    $scope.formValues.Configs.splice(index, 1);
  };

  $scope.addSecret = function() {
    $scope.formValues.Secrets.push({ overrideTarget: false });
  };

  $scope.removeSecret = function(index) {
    $scope.formValues.Secrets.splice(index, 1);
  };

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

  $scope.removeEnvironmentVariable = function(index) {
    $scope.formValues.Env.splice(index, 1);
  };

  $scope.addPlacementConstraint = function() {
    $scope.formValues.PlacementConstraints.push({ key: '', operator: '==', value: '' });
  };

  $scope.removePlacementConstraint = function(index) {
    $scope.formValues.PlacementConstraints.splice(index, 1);
  };

  $scope.addPlacementPreference = function() {
    $scope.formValues.PlacementPreferences.push({ strategy: 'spread', value: '' });
  };

  $scope.removePlacementPreference = function(index) {
    $scope.formValues.PlacementPreferences.splice(index, 1);
  };

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

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

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

  $scope.removeContainerLabel = function(index) {
    $scope.formValues.ContainerLabels.splice(index, 1);
  };

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

  $scope.removeLogDriverOpt = function(index) {
    $scope.formValues.LogDriverOpts.splice(index, 1);
  };

  function prepareImageConfig(config, input) {
    var imageConfig = ImageHelper.createImageConfigForContainer(input.Image, input.Registry.URL);
    config.TaskTemplate.ContainerSpec.Image = imageConfig.fromImage + ':' + imageConfig.tag;
  }

  function preparePortsConfig(config, input) {
    var ports = [];
    input.Ports.forEach(function (binding) {
      var port = {
        Protocol: binding.Protocol,
        PublishMode: binding.PublishMode
      };
      if (binding.TargetPort) {
        port.TargetPort = +binding.TargetPort;
        if (binding.PublishedPort) {
          port.PublishedPort = +binding.PublishedPort;
        }
        ports.push(port);
      }
    });
    config.EndpointSpec.Ports = ports;
  }

  function prepareSchedulingConfig(config, input) {
    if (input.Mode === 'replicated') {
      config.Mode.Replicated = {
        Replicas: input.Replicas
      };
    } else {
      config.Mode.Global = {};
    }
  }

  function commandToArray(cmd) {
    var tokens = [].concat.apply([], cmd.split('\'').map(function(v,i) {
       return i%2 ? v : v.split(' ');
    })).filter(Boolean);
    return tokens;
  }

  function prepareCommandConfig(config, input) {
    if (input.EntryPoint) {
      config.TaskTemplate.ContainerSpec.Command = commandToArray(input.EntryPoint);
    }
    if (input.Command) {
      config.TaskTemplate.ContainerSpec.Args = commandToArray(input.Command);
    }
    if (input.User) {
      config.TaskTemplate.ContainerSpec.User = input.User;
    }
    if (input.WorkingDir) {
      config.TaskTemplate.ContainerSpec.Dir = input.WorkingDir;
    }
  }

  function prepareEnvConfig(config, input) {
    var env = [];
    input.Env.forEach(function (v) {
      if (v.name) {
        env.push(v.name + '=' + v.value);
      }
    });
    config.TaskTemplate.ContainerSpec.Env = env;
  }

  function prepareLabelsConfig(config, input) {
    config.Labels = LabelHelper.fromKeyValueToLabelHash(input.Labels);
    config.TaskTemplate.ContainerSpec.Labels = LabelHelper.fromKeyValueToLabelHash(input.ContainerLabels);
  }

  function createMountObjectFromVolume(volumeObject, target, readonly) {
    return {
      Target: target,
      Source: volumeObject.Id,
      Type: 'volume',
      ReadOnly: readonly,
      VolumeOptions: {
        Labels: volumeObject.Labels,
        DriverConfig: {
          Name: volumeObject.Driver,
          Options: volumeObject.Options
        }
      }
    };
  }

  function prepareVolumes(config, input) {
    input.Volumes.forEach(function (volume) {
      if (volume.Source && volume.Target) {
        if (volume.Type !== 'volume') {
          config.TaskTemplate.ContainerSpec.Mounts.push(volume);
        } else {
          var volumeObject = volume.Source;
          var mount = createMountObjectFromVolume(volumeObject, volume.Target, volume.ReadOnly);
          config.TaskTemplate.ContainerSpec.Mounts.push(mount);
        }
      }
    });
  }

  function prepareNetworks(config, input) {
    var networks = [];
    if (input.Network) {
      networks.push({ Target: input.Network });
    }
    input.ExtraNetworks.forEach(function (network) {
      networks.push({ Target: network.Name });
    });
    config.Networks = _.uniqWith(networks, _.isEqual);
  }

  function prepareHostsEntries(config, input) {
    var hostsEntries = [];
    if (input.HostsEntries) {
      input.HostsEntries.forEach(function (host_ip) {
        if (host_ip.value && host_ip.value.indexOf(':') && host_ip.value.split(':').length === 2) {
          var keyVal = host_ip.value.split(':');
          // Hosts file format, IP_address canonical_hostname
          hostsEntries.push(keyVal[1] + ' ' + keyVal[0]);
        }
      });
      if (hostsEntries.length > 0) {
        config.TaskTemplate.ContainerSpec.Hosts = hostsEntries;
      }
    }
  }

  function prepareUpdateConfig(config, input) {
    config.UpdateConfig = {
      Parallelism: input.Parallelism || 0,
      Delay: ServiceHelper.translateHumanDurationToNanos(input.UpdateDelay) || 0,
      FailureAction: input.FailureAction,
      Order: input.UpdateOrder
    };
  }

  function prepareRestartPolicy(config, input) {
    config.TaskTemplate.RestartPolicy = {
      Condition: input.RestartCondition || 'any',
      Delay: ServiceHelper.translateHumanDurationToNanos(input.RestartDelay) || 5000000000,
      MaxAttempts: input.RestartMaxAttempts || 0,
      Window: ServiceHelper.translateHumanDurationToNanos(input.RestartWindow) || 0
    };
  }

  function preparePlacementConfig(config, input) {
    config.TaskTemplate.Placement.Constraints = ServiceHelper.translateKeyValueToPlacementConstraints(input.PlacementConstraints);
    config.TaskTemplate.Placement.Preferences = ServiceHelper.translateKeyValueToPlacementPreferences(input.PlacementPreferences);
  }

  function prepareConfigConfig(config, input) {
    if (input.Configs) {
      var configs = [];
      angular.forEach(input.Configs, function(config) {
        if (config.model) {
          var s = ConfigHelper.configConfig(config.model);
          s.File.Name = config.FileName || s.File.Name;
          configs.push(s);
        }
      });
      config.TaskTemplate.ContainerSpec.Configs = configs;
    }
  }

  function prepareSecretConfig(config, input) {
    if (input.Secrets) {
      var secrets = [];
      angular.forEach(input.Secrets, function(secret) {
        if (secret.model) {
          var s = SecretHelper.secretConfig(secret.model);
          s.File.Name = s.SecretName;
          if (secret.overrideTarget && secret.target && secret.target !== '') {
            s.File.Name = secret.target;
          }
          secrets.push(s);
        }
      });
      config.TaskTemplate.ContainerSpec.Secrets = secrets;
    }
  }

  function prepareResourcesCpuConfig(config, input) {
    // CPU Limit
    if (input.CpuLimit > 0) {
      config.TaskTemplate.Resources.Limits.NanoCPUs = input.CpuLimit * 1000000000;
    }
    // CPU Reservation
    if (input.CpuReservation > 0) {
      config.TaskTemplate.Resources.Reservations.NanoCPUs = input.CpuReservation * 1000000000;
    }
  }

  function prepareResourcesMemoryConfig(config, input) {
    // Memory Limit - Round to 0.125
    var memoryLimit = (Math.round(input.MemoryLimit * 8) / 8).toFixed(3);
    memoryLimit *= 1024 * 1024;
    if (input.MemoryLimitUnit === 'GB') {
      memoryLimit *= 1024;
    }
    if (memoryLimit > 0) {
      config.TaskTemplate.Resources.Limits.MemoryBytes = memoryLimit;
    }
    // Memory Resevation - Round to 0.125
    var memoryReservation = (Math.round(input.MemoryReservation * 8) / 8).toFixed(3);
    memoryReservation *= 1024 * 1024;
    if (input.MemoryReservationUnit === 'GB') {
      memoryReservation *= 1024;
    }
    if (memoryReservation > 0) {
      config.TaskTemplate.Resources.Reservations.MemoryBytes = memoryReservation;
    }
  }

  function prepareLogDriverConfig(config, input) {
    var logOpts = {};
    if (input.LogDriverName) {
      config.TaskTemplate.LogDriver = { Name: input.LogDriverName };
      if (input.LogDriverName !== 'none') {
        input.LogDriverOpts.forEach(function (opt) {
          if (opt.name) {
            logOpts[opt.name] = opt.value;
          }
        });
        if (Object.keys(logOpts).length !== 0 && logOpts.constructor === Object) {
          config.TaskTemplate.LogDriver.Options = logOpts;
        }
      }
    }
  }

  function prepareConfiguration() {
    var input = $scope.formValues;
    var config = {
      Name: input.Name,
      TaskTemplate: {
        ContainerSpec: {
          Mounts: []
        },
        Placement: {},
        Resources: {
          Limits: {},
          Reservations: {}
        }
      },
      Mode: {},
      EndpointSpec: {}
    };
    prepareSchedulingConfig(config, input);
    prepareImageConfig(config, input);
    preparePortsConfig(config, input);
    prepareCommandConfig(config, input);
    prepareEnvConfig(config, input);
    prepareLabelsConfig(config, input);
    prepareVolumes(config, input);
    prepareNetworks(config, input);
    prepareHostsEntries(config, input);
    prepareUpdateConfig(config, input);
    prepareConfigConfig(config, input);
    prepareSecretConfig(config, input);
    preparePlacementConfig(config, input);
    prepareResourcesCpuConfig(config, input);
    prepareResourcesMemoryConfig(config, input);
    prepareRestartPolicy(config, input);
    prepareLogDriverConfig(config, input);
    return config;
  }

  function createNewService(config, accessControlData) {

    var registry = $scope.formValues.Registry;
    var authenticationDetails = registry.Authentication ? RegistryService.encodedCredentials(registry) : '';
    HttpRequestHelper.setRegistryAuthenticationHeader(authenticationDetails);
    Service.create(config).$promise
    .then(function success(data) {
      var serviceIdentifier = data.ID;
      var userId = Authentication.getUserDetails().ID;
      return ResourceControlService.applyResourceControl('service', serviceIdentifier, userId, accessControlData, []);
    })
    .then(function success() {
      Notifications.success('Service successfully created');
      $state.go('docker.services', {}, {reload: true});
    })
    .catch(function error(err) {
      Notifications.error('Failure', err, 'Unable to create service');
    })
    .finally(function final() {
      $scope.state.actionInProgress = false;
    });
  }

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

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

  $scope.create = function createService() {

    var accessControlData = $scope.formValues.AccessControlData;
    var userDetails = Authentication.getUserDetails();
    var isAdmin = userDetails.role === 1;

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

    $scope.state.actionInProgress = true;
    var config = prepareConfiguration();
    createNewService(config, accessControlData);
  };

  function initSlidersMaxValuesBasedOnNodeData(nodes) {
    var maxCpus = 0;
    var maxMemory = 0;
    for (var n in nodes) {
      if (nodes[n].CPUs && nodes[n].CPUs > maxCpus) {
        maxCpus = nodes[n].CPUs;
      }
      if (nodes[n].Memory && nodes[n].Memory > maxMemory) {
        maxMemory = nodes[n].Memory;
      }
    }
    if (maxCpus > 0) {
      $scope.state.sliderMaxCpu = maxCpus / 1000000000;
    } else {
      $scope.state.sliderMaxCpu = 32;
    }
    if (maxMemory > 0) {
      $scope.state.sliderMaxMemory = Math.floor(maxMemory / 1000 / 1000);
    } else {
      $scope.state.sliderMaxMemory = 32768;
    }
  }

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

    $q.all({
      volumes: VolumeService.volumes(),
      networks: NetworkService.networks(true, true, false),
      secrets: apiVersion >= 1.25 ? SecretService.secrets() : [],
      configs: apiVersion >= 1.30 ? ConfigService.configs() : [],
      nodes: NodeService.nodes(),
      settings: SettingsService.publicSettings(),
      availableLoggingDrivers: PluginService.loggingPlugins(apiVersion < 1.25)
    })
    .then(function success(data) {
      $scope.availableVolumes = data.volumes;
      $scope.availableNetworks = data.networks;
      $scope.availableSecrets = data.secrets;
      $scope.availableConfigs = data.configs;
      $scope.availableLoggingDrivers = data.availableLoggingDrivers;
      initSlidersMaxValuesBasedOnNodeData(data.nodes);
      $scope.allowBindMounts = data.settings.AllowBindMountsForRegularUsers;
      var userDetails = Authentication.getUserDetails();
      $scope.isAdmin = userDetails.role === 1;
    })
    .catch(function error(err) {
      Notifications.error('Failure', err, 'Unable to initialize view');
    });
  }

  initView();
}]);