import Model, { belongsTo, hasMany, attr } from '@ember-data/model';
import { alias } from '@ember/object/computed'; // eslint-disable-line
import { computed } from '@ember/object'; // eslint-disable-line
import { inject as service } from '@ember/service';
import fieldToAttrs, { expandAttributeMeta } from 'vault/utils/field-to-attrs';
import apiPath from 'vault/utils/api-path';
import attachCapabilities from 'vault/lib/attach-capabilities';
import { withModelValidations } from 'vault/decorators/model-validations';

const validations = {
  path: [{ type: 'presence', message: "Path can't be blank." }],
};

// unsure if ember-api-actions will work on native JS class model
// for now create class to use validations and then use classic extend pattern
@withModelValidations(validations)
class AuthMethodModel extends Model {}
const ModelExport = AuthMethodModel.extend({
  store: service(),

  config: belongsTo('mount-config', { async: false, inverse: null }), // one-to-none that replaces former fragment
  authConfigs: hasMany('auth-config', { polymorphic: true, inverse: 'backend', async: false }),
  path: attr('string'),
  accessor: attr('string'),
  name: attr('string'),
  type: attr('string'),
  // namespaces introduced types with a `ns_` prefix for built-in engines
  // so we need to strip that to normalize the type
  methodType: computed('type', function () {
    return this.type.replace(/^ns_/, '');
  }),
  description: attr('string', {
    editType: 'textarea',
  }),
  local: attr('boolean', {
    helpText:
      'When Replication is enabled, a local mount will not be replicated across clusters. This can only be specified at mount time.',
  }),
  sealWrap: attr('boolean', {
    helpText:
      'When enabled - if a seal supporting seal wrapping is specified in the configuration, all critical security parameters (CSPs) in this backend will be seal wrapped. (For K/V mounts, all values will be seal wrapped.) This can only be specified at mount time.',
  }),

  // used when the `auth` prefix is important,
  // currently only when setting perf mount filtering
  apiPath: computed('path', function () {
    return `auth/${this.path}`;
  }),
  localDisplay: computed('local', function () {
    return this.local ? 'local' : 'replicated';
  }),

  tuneAttrs: computed('path', function () {
    const { methodType } = this;
    let tuneAttrs;
    // token_type should not be tuneable for the token auth method
    if (methodType === 'token') {
      tuneAttrs = [
        'description',
        'config.{listingVisibility,defaultLeaseTtl,maxLeaseTtl,auditNonHmacRequestKeys,auditNonHmacResponseKeys,passthroughRequestHeaders}',
      ];
    } else {
      tuneAttrs = [
        'description',
        'config.{listingVisibility,defaultLeaseTtl,maxLeaseTtl,tokenType,auditNonHmacRequestKeys,auditNonHmacResponseKeys,passthroughRequestHeaders}',
      ];
    }
    return expandAttributeMeta(this, tuneAttrs);
  }),

  formFields: computed(function () {
    return [
      'type',
      'path',
      'description',
      'accessor',
      'local',
      'sealWrap',
      'config.{listingVisibility,defaultLeaseTtl,maxLeaseTtl,tokenType,auditNonHmacRequestKeys,auditNonHmacResponseKeys,passthroughRequestHeaders}',
    ];
  }),

  formFieldGroups: computed(function () {
    return [
      { default: ['path'] },
      {
        'Method Options': [
          'description',
          'config.listingVisibility',
          'local',
          'sealWrap',
          'config.{defaultLeaseTtl,maxLeaseTtl,tokenType,auditNonHmacRequestKeys,auditNonHmacResponseKeys,passthroughRequestHeaders}',
        ],
      },
    ];
  }),

  attrs: computed('formFields', function () {
    return expandAttributeMeta(this, this.formFields);
  }),

  fieldGroups: computed('formFieldGroups', function () {
    return fieldToAttrs(this, this.formFieldGroups);
  }),
  canDisable: alias('deletePath.canDelete'),
  canEdit: alias('configPath.canUpdate'),

  tune(data) {
    return this.store.adapterFor('auth-method').tune(this.path, data);
  },
});

export default attachCapabilities(ModelExport, {
  deletePath: apiPath`sys/auth/${'id'}`,
  configPath: function (context) {
    if (context.type === 'aws') {
      return apiPath`auth/${'id'}/config/client`.call(this, context);
    } else {
      return apiPath`auth/${'id'}/config`.call(this, context);
    }
  },
});
