src/canary/test.ts


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import * as TE from "fp-ts/lib/TaskEither";
import * as O from "fp-ts/lib/Option";
import type { Job } from "./job";
import type { D } from "../util";

export enum TestType {
  EMAIL = "email",
  PING = "ping",
  HEALTHCHECK = "healthcheck",
  DNS = "dns",
}

export interface Schedule {
  every: D.Duration;
  jitter: D.Duration;
}

export interface Test {
  name: string;
  type: TestType;
  job: Job;
  schedule: Schedule;
}

export type Testable<T extends Job> = (job: T) => TE.TaskEither<Error, boolean>;

export const parseTestType = (testType: string): O.Option<TestType> =>
  Object.values(TestType).includes(testType as TestType)
    ? O.some(testType as TestType)
    : O.none;