import faker from '@faker-js/faker';

const arrayOf = <T>(f: () => T) => {
  const length = 3;

  return Array.from({
    length,
  }, f);
};

const objectOf = <T>(f: () => T) => {
  const keys = ['foo', 'bar', 'qux'];

  return keys.reduce<Record<string, T>>((object, key) => {
    object[key] = f();
    return object;
  }, {});
};

const factories = {
  boolean: () => faker.datatype.boolean(),
  date_iso_8601: () => faker.datatype.datetime().toISOString().slice(0, 10),
  date_time_iso_8601: () => faker.datatype.datetime().toISOString(),
  decimal: () => faker.datatype.float(),
  double: () => faker.datatype.float(),
  integer: () => faker.datatype.number(),
  json: () => faker.datatype.json(),
  long: () => faker.datatype.number(),
  object: () => faker.datatype.json(),
  string: () => faker.datatype.string(),
  unit: () => undefined,
  uuid: () => faker.datatype.uuid(),
  'de.nccloud.common.v0.enums.error_source_type': (): de.nccloud.common.v0.enums.ErrorSourceType => faker.helpers.arrayElement(['pointer', 'parameter', 'header']),
  'de.nccloud.common.v0.enums.health_status': (): de.nccloud.common.v0.enums.HealthStatus => faker.helpers.arrayElement(['running', 'starting', 'unhealthy']),
  'de.nccloud.common.v0.enums.sort_direction': (): de.nccloud.common.v0.enums.SortDirection => faker.helpers.arrayElement(['asc', 'desc']),

  'de.nccloud.common.v0.models.audit': (): de.nccloud.common.v0.models.Audit => ({
    created_at: factories.date_time_iso_8601(),
    created_by: factories.uuid(),
    updated_at: factories.date_time_iso_8601(),
    updated_by: factories.uuid(),
  }),

  'de.nccloud.common.v0.models.error_links': (): de.nccloud.common.v0.models.ErrorLinks => ({
    about: factories['de.nccloud.common.v0.unions.link'](),
    type: factories['de.nccloud.common.v0.unions.link'](),
  }),

  'de.nccloud.common.v0.models.error_source': (): de.nccloud.common.v0.models.ErrorSource => ({
    type: factories['de.nccloud.common.v0.enums.error_source_type'](),
    source: factories.string(),
  }),

  'de.nccloud.common.v0.models.generic_error': (): de.nccloud.common.v0.models.GenericError => ({
    links: factories['de.nccloud.common.v0.models.error_links'](),
    code: factories.string(),
    title: factories.string(),
    detail: factories.string(),
    source: factories['de.nccloud.common.v0.models.error_source'](),
    meta: factories.object(),
  }),

  'de.nccloud.common.v0.models.health_check': (): de.nccloud.common.v0.models.HealthCheck => ({
    status: factories['de.nccloud.common.v0.enums.health_status'](),
    message: factories.string(),
  }),

  'de.nccloud.common.v0.models.link_object': (): de.nccloud.common.v0.models.LinkObject => ({
    discriminator: 'link_object',
    href: factories.string(),
    title: factories.string(),
    type: factories.string(),
  }),

  'de.nccloud.common.v0.models.page_response': (): de.nccloud.common.v0.models.PageResponse => ({
    offset: factories.integer(),
    limit: factories.integer(),
    sort: arrayOf(() => factories['de.nccloud.common.v0.models.sort']()),
    total_results: factories.long(),
    total_pages: factories.long(),
  }),

  'de.nccloud.common.v0.models.paging_form': (): de.nccloud.common.v0.models.PagingForm => ({
    offset: factories.integer(),
    limit: factories.integer(),
    sort: arrayOf(() => factories['de.nccloud.common.v0.models.sort']()),
  }),

  'de.nccloud.common.v0.models.service_info': (): de.nccloud.common.v0.models.ServiceInfo => ({
    name: factories.string(),
    version: factories.string(),
    uri: factories.string(),
    title: factories.string(),
    description: factories.string(),
  }),

  'de.nccloud.common.v0.models.sort': (): de.nccloud.common.v0.models.Sort => ({
    property: factories.string(),
    direction: factories['de.nccloud.common.v0.enums.sort_direction'](),
  }),

  'de.nccloud.common.v0.unions.link': (): de.nccloud.common.v0.unions.Link => {
    const f = faker.helpers.arrayElement([() => ({
      discriminator: 'string' as const,
      value: factories.string(),
    }), () => factories['de.nccloud.common.v0.models.link_object']()]);

    return f();
  },

  'de.nccloud.reporting.api.v0.enums.scalar_type': (): de.nccloud.reporting.api.v0.enums.ScalarType => faker.helpers.arrayElement([
    'boolean',
    'date-iso8601',
    'date-time-iso8601',
    'decimal',
    'double',
    'integer',
    'long',
    'string',
    'uuid',
    'object',
  ]),

  'de.nccloud.reporting.api.v0.models.delete_event': (): de.nccloud.reporting.api.v0.models.DeleteEvent => ({
    type: 'delete_event',
    tracking_id: factories.string(),
    audit: factories['de.nccloud.common.v0.models.audit'](),
  }),

  'de.nccloud.reporting.api.v0.models.field': (): de.nccloud.reporting.api.v0.models.Field => ({
    type: factories['de.nccloud.reporting.api.v0.enums.scalar_type'](),
    is_array: factories.boolean(),
    fields: objectOf(() => factories['de.nccloud.reporting.api.v0.models.field']()),
    label: factories.string(),
    description: factories.string(),
  }),

  'de.nccloud.reporting.api.v0.models.filter': (): de.nccloud.reporting.api.v0.models.Filter => ({
    expression: factories.string(),
    variables: objectOf(() => factories.json()),
  }),

  'de.nccloud.reporting.api.v0.models.projection_field': (): de.nccloud.reporting.api.v0.models.ProjectionField => ({
    label: factories.string(),
    description: factories.string(),
    source: factories['de.nccloud.reporting.api.v0.models.projection_field_source'](),
    fields: objectOf(() => factories['de.nccloud.reporting.api.v0.models.projection_field']()),
  }),

  'de.nccloud.reporting.api.v0.models.projection_field_source': (): de.nccloud.reporting.api.v0.models.ProjectionFieldSource => ({
    topic: factories.string(),
    path: factories.string(),
    filter: factories.string(),
  }),

  'de.nccloud.reporting.api.v0.models.query_form': (): de.nccloud.reporting.api.v0.models.QueryForm => ({
    view: factories.string(),
    projection: objectOf(() => factories['de.nccloud.reporting.api.v0.models.projection_field']()),
    variables: objectOf(() => factories.json()),
    sort: arrayOf(() => factories['de.nccloud.common.v0.models.sort']()),
  }),

  'de.nccloud.reporting.api.v0.models.query_response': (): de.nccloud.reporting.api.v0.models.QueryResponse => ({
    page: factories['de.nccloud.common.v0.models.page_response'](),
    data: factories.object(),
  }),

  'de.nccloud.reporting.api.v0.models.topic': (): de.nccloud.reporting.api.v0.models.Topic => ({
    name: factories.string(),
    service: factories['de.nccloud.common.v0.models.service_info'](),
    schema: objectOf(() => factories['de.nccloud.reporting.api.v0.models.field']()),
  }),

  'de.nccloud.reporting.api.v0.models.topic_response': (): de.nccloud.reporting.api.v0.models.TopicResponse => ({
    page: factories['de.nccloud.common.v0.models.page_response'](),
    data: arrayOf(() => factories['de.nccloud.reporting.api.v0.models.topic']()),
  }),

  'de.nccloud.reporting.api.v0.models.update_event': (): de.nccloud.reporting.api.v0.models.UpdateEvent => ({
    type: 'update_event',
    tracking_id: factories.string(),
    payload: factories.object(),
    audit: factories['de.nccloud.common.v0.models.audit'](),
  }),

  'de.nccloud.reporting.api.v0.models.view': (): de.nccloud.reporting.api.v0.models.View => ({
    guid: factories.uuid(),
    name: factories.string(),
    projection: objectOf(() => factories['de.nccloud.reporting.api.v0.models.projection_field']()),
    variables: objectOf(() => factories['de.nccloud.reporting.api.v0.enums.scalar_type']()),
  }),

  'de.nccloud.reporting.api.v0.models.view_form': (): de.nccloud.reporting.api.v0.models.ViewForm => ({
    name: factories.string(),
    projection: objectOf(() => factories['de.nccloud.reporting.api.v0.models.projection_field']()),
    variables: objectOf(() => factories['de.nccloud.reporting.api.v0.enums.scalar_type']()),
  }),

  'de.nccloud.reporting.api.v0.models.view_response': (): de.nccloud.reporting.api.v0.models.ViewResponse => ({
    page: factories['de.nccloud.common.v0.models.page_response'](),
    data: arrayOf(() => factories['de.nccloud.reporting.api.v0.models.view']()),
  }),

  'de.nccloud.reporting.api.v0.unions.reporting_event': (): de.nccloud.reporting.api.v0.unions.ReportingEvent => {
    const f = faker.helpers.arrayElement([
      () => factories['de.nccloud.reporting.api.v0.models.update_event'](),
      () => factories['de.nccloud.reporting.api.v0.models.delete_event'](),
    ]);

    return f();
  },

  'de.nccloud.reporting.crds.v0.models.report_stream': (): de.nccloud.reporting.crds.v0.models.ReportStream => ({
    topic: factories.string(),
    description: factories.string(),
    service: factories.string(),
    schema: objectOf(() => factories['de.nccloud.reporting.api.v0.models.field']()),
  }),
};

export const makeReportStream = () => factories['de.nccloud.reporting.crds.v0.models.report_stream']();