import _ from 'lodash-es';
import { AccessControlFormData } from 'Portainer/components/accessControlForm/porAccessControlFormModel';

import angular from 'angular';

class CreateConfigController {
  /* @ngInject */
  constructor($async, $state, $transition$, $window, ModalService, Notifications, ConfigService, Authentication, FormValidator, ResourceControlService) {
    this.$state = $state;
    this.$transition$ = $transition$;
    this.$window = $window;
    this.ModalService = ModalService;
    this.Notifications = Notifications;
    this.ConfigService = ConfigService;
    this.Authentication = Authentication;
    this.FormValidator = FormValidator;
    this.ResourceControlService = ResourceControlService;
    this.$async = $async;

    this.formValues = {
      Name: '',
      Labels: [],
      AccessControlData: new AccessControlFormData(),
      ConfigContent: '',
    };

    this.state = {
      formValidationError: '',
      isEditorDirty: false,
    };

    this.editorUpdate = this.editorUpdate.bind(this);
    this.createAsync = this.createAsync.bind(this);
  }

  async $onInit() {
    this.$window.onbeforeunload = () => {
      if (this.formValues.displayCodeEditor && this.formValues.ConfigContent && this.state.isEditorDirty) {
        return '';
      }
    };

    if (!this.$transition$.params().id) {
      this.formValues.displayCodeEditor = true;
      return;
    }

    try {
      let data = await this.ConfigService.config(this.$transition$.params().id);
      this.formValues.Name = data.Name + '_copy';
      this.formValues.Data = data.Data;
      let labels = _.keys(data.Labels);
      for (let i = 0; i < labels.length; i++) {
        let labelName = labels[i];
        let labelValue = data.Labels[labelName];
        this.formValues.Labels.push({ name: labelName, value: labelValue });
      }
      this.formValues.displayCodeEditor = true;
    } catch (err) {
      this.formValues.displayCodeEditor = true;
      this.Notifications.error('Failure', err, 'Unable to clone config');
    }
  }

  $onDestroy() {
    this.state.isEditorDirty = false;
  }

  async uiCanExit() {
    if (this.formValues.displayCodeEditor && this.formValues.ConfigContent && this.state.isEditorDirty) {
      return this.ModalService.confirmWebEditorDiscard();
    }
  }

  addLabel() {
    this.formValues.Labels.push({ name: '', value: '' });
  }

  removeLabel(index) {
    this.formValues.Labels.splice(index, 1);
  }

  prepareLabelsConfig(config) {
    let labels = {};
    this.formValues.Labels.forEach(function (label) {
      if (label.name && label.value) {
        labels[label.name] = label.value;
      }
    });
    config.Labels = labels;
  }

  prepareConfigData(config) {
    let configData = this.formValues.ConfigContent;
    config.Data = btoa(unescape(encodeURIComponent(configData)));
  }

  prepareConfiguration() {
    let config = {};
    config.Name = this.formValues.Name;
    this.prepareConfigData(config);
    this.prepareLabelsConfig(config);
    return config;
  }

  validateForm(accessControlData, isAdmin) {
    this.state.formValidationError = '';
    let error = '';
    error = this.FormValidator.validateAccessControl(accessControlData, isAdmin);

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

  create() {
    return this.$async(this.createAsync);
  }

  async createAsync() {
    const accessControlData = this.formValues.AccessControlData;
    const userDetails = this.Authentication.getUserDetails();
    const isAdmin = this.Authentication.isAdmin();

    if (this.formValues.ConfigContent === '') {
      this.state.formValidationError = 'Config content must not be empty';
      return;
    }

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

    const config = this.prepareConfiguration();

    try {
      const data = await this.ConfigService.create(config);
      const resourceControl = data.Portainer.ResourceControl;
      const userId = userDetails.ID;
      await this.ResourceControlService.applyResourceControl(userId, accessControlData, resourceControl);
      this.Notifications.success('Config successfully created');
      this.state.isEditorDirty = false;
      this.$state.go('docker.configs', {}, { reload: true });
    } catch (err) {
      this.Notifications.error('Failure', err, 'Unable to create config');
    }
  }

  editorUpdate(cm) {
    this.formValues.ConfigContent = cm.getValue();
    this.state.isEditorDirty = true;
  }
}

export default CreateConfigController;
angular.module('portainer.docker').controller('CreateConfigController', CreateConfigController);