lens/src/renderer/api/endpoints/crd.api.ts

import { KubeObject } from "../kube-object";
import { crdResourcesURL } from "../../components/+custom-resources/crd.route";
import { KubeApi } from "../kube-api";

type AdditionalPrinterColumnsCommon = {
  name: string;
  type: "integer" | "number" | "string" | "boolean" | "date";
  priority: number;
  description: string;
};

export type AdditionalPrinterColumnsV1 = AdditionalPrinterColumnsCommon & {
  jsonPath: string;
};

type AdditionalPrinterColumnsV1Beta = AdditionalPrinterColumnsCommon & {
  JSONPath: string;
};

export class CustomResourceDefinition extends KubeObject {
  static kind = "CustomResourceDefinition";
  static namespaced = false;
  static apiBase = "/apis/apiextensions.k8s.io/v1/customresourcedefinitions";

  spec: {
    group: string;
    version?: string; // deprecated in v1 api
    names: {
      plural: string;
      singular: string;
      kind: string;
      listKind: string;
    };
    scope: "Namespaced" | "Cluster" | string;
    validation?: any;
    versions?: {
      name: string;
      served: boolean;
      storage: boolean;
      schema?: unknown; // required in v1 but not present in v1beta
      additionalPrinterColumns?: AdditionalPrinterColumnsV1[]
    }[];
    conversion: {
      strategy?: string;
      webhook?: any;
    };
    additionalPrinterColumns?: AdditionalPrinterColumnsV1Beta[]; // removed in v1
  };
  status: {
    conditions: {
      lastTransitionTime: string;
      message: string;
      reason: string;
      status: string;
      type?: string;
    }[];
    acceptedNames: {
      plural: string;
      singular: string;
      kind: string;
      shortNames: string[];
      listKind: string;
    };
    storedVersions: string[];
  };

  getResourceUrl() {
    return crdResourcesURL({
      params: {
        group: this.getGroup(),
        name: this.getPluralName(),
      }
    });
  }

  getResourceApiBase() {
    const { group } = this.spec;

    return `/apis/${group}/${this.getVersion()}/${this.getPluralName()}`;
  }

  getPluralName() {
    return this.getNames().plural;
  }

  getResourceKind() {
    return this.spec.names.kind;
  }

  getResourceTitle() {
    const name = this.getPluralName();

    return name[0].toUpperCase() + name.substr(1);
  }

  getGroup() {
    return this.spec.group;
  }

  getScope() {
    return this.spec.scope;
  }

  getVersion() {
    // v1 has removed the spec.version property, if it is present it must match the first version
    return this.spec.versions?.[0]?.name ?? this.spec.version;
  }

  isNamespaced() {
    return this.getScope() === "Namespaced";
  }

  getStoredVersions() {
    return this.status.storedVersions.join(", ");
  }

  getNames() {
    return this.spec.names;
  }

  getConversion() {
    return JSON.stringify(this.spec.conversion);
  }

  getPrinterColumns(ignorePriority = true): AdditionalPrinterColumnsV1[] {
    const columns = this.spec.versions?.find(a => this.getVersion() == a.name)?.additionalPrinterColumns
      ?? this.spec.additionalPrinterColumns?.map(({ JSONPath, ...rest }) => ({ ...rest, jsonPath: JSONPath })) // map to V1 shape
      ?? [];

    return columns
      .filter(column => column.name != "Age")
      .filter(column => ignorePriority ? true : !column.priority);
  }

  getValidation() {
    return JSON.stringify(this.spec.validation ?? this.spec.versions?.[0]?.schema, null, 2);
  }

  getConditions() {
    if (!this.status?.conditions) return [];

    return this.status.conditions.map(condition => {
      const { message, reason, lastTransitionTime, status } = condition;

      return {
        ...condition,
        isReady: status === "True",
        tooltip: `${message || reason} (${lastTransitionTime})`
      };
    });
  }
}

export const crdApi = new KubeApi<CustomResourceDefinition>({
  objectConstructor: CustomResourceDefinition,
  checkPreferredVersion: true,
});