text: import rp from "request-promise";
  import settings from "../settings";
  import { isValidDate, buildUrlWithParams, buildUrlWithQuery } from "./util";
  
  const getCheckJobFormatFunction = (jobProperty, defaultJob = {}) => (job) => {
    if (!job.name || (jobProperty && !job[jobProperty])) {
      throw new Error(
        `expected request body to match {name${
          jobProperty ? `, ${jobProperty}` : ""
        }}`
      );
    }
  
    return { ...defaultJob, ...job };
  };
  
  const doNotCheck = (job) => job;
  
  const getAssertFunction = (assertOnCount, errorOnName) => (job, jobs) =>
    jobs.countDocuments({ name: job.name }).then((count) => {
      if (!assertOnCount(count)) {
        throw new Error(errorOnName(job.name));
      }
    });
  
  const jobAssertions = {
    alreadyExists: getAssertFunction(
      (count) => count > 0,
      (name) => `Did not find a job named "${name}"`
    ),
    notExists: getAssertFunction(
      (count) => count <= 0,
      (name) => `A job named "${name}" already exist`
    ),
    doNotAssert: () => true,
  };
  
  const defineJob = async (job, jobs, agenda) => {
    const { name, url, method, callback } = job;
    agenda.define(name, (job, done) => {
      const {
        attrs: { data },
      } = job;
      let uri = buildUrlWithParams({ url, params: data.params });
      uri = buildUrlWithQuery({ url: uri, query: data.query });
  
      const options = {
        method: method || "POST",
        uri,
        body: data.body,
        headers: data.headers || {},
        json: true,
      };
  
      // Error if no response in timeout
      Promise.race([
        new Promise((resolve, reject) =>
          setTimeout(() => reject(new Error("TimeOutError")), settings.timeout)
        ),
        rp(options),
      ])
        .catch((err) => {
          job.fail(`options: ${JSON.stringify(options)} message: ${err.message}`);
          return { error: err.message };
        })
        .then((result) => {
          if (callback) {
            return rp({
              method: callback.method || "POST",
              uri: callback.url,
              headers: callback.headers || {},
              body: { data, response: result },
              json: true,
            });
          }
        })
        .catch((err) => job.fail(`failure in callback: ${err.message}`))
        .then(() => done());
    });
  
    await jobs
      .countDocuments({ name })
      .then((count) =>
        count < 1 ? jobs.insertOne(job) : jobs.updateOne({ name }, { $set: job })
      );
  
    return "job defined";
  };
  
  const deleteJob = async (job, jobs, agenda) => {
    const numRemoved = await agenda.cancel(job);
    const obj = await jobs.remove(job);
    return `removed ${obj.result.n} job definitions and ${numRemoved} job instances.`;
  };
  
  const cancelJob = async (job, jobs, agenda) => {
    const numRemoved = await agenda.cancel(job);
    return `${numRemoved} jobs canceled`;
  };
  
  const getDefaultJobForSchedule = () => ({
    data: {
      body: {},
      params: {},
      query: {},
    },
  });
  
  const pickValues = ({ obj, pickProps }) =>
    pickProps.reduce(
      (props, prop) => (obj[prop] ? [...props, obj[prop]] : props),
      []
    );
  const scheduleTypes = {
    now: {
      fn: (agenda) => agenda.now.bind(agenda),
      message: "for now",
      getParams: (job) => pickValues({ obj: job, pickProps: ["name", "data"] }),
    },
    once: {
      fn: (agenda) => agenda.schedule.bind(agenda),
      message: "for once",
      getParams: (job) => {
        // Check if interval is timestamp
        let time = parseInt(job.interval, 10);
        time = isNaN(time) ? job.interval : time;
        // Check if interval is date
        time = new Date(time);
        time = isValidDate(time) ? time : job.interval;
        return pickValues({
          obj: { ...job, time },
          pickProps: ["time", "name", "data"],
        });
      },
    },
    every: {
      fn: (agenda) => agenda.every.bind(agenda),
      message: "for repetition",
      getParams: (job) =>
        pickValues({
          obj: job,
          pickProps: ["interval", "name", "data", "options"],
        }),
    },
  };
  
  const getScheduleJobFunction = (scheduleType) => async (job, jobs, agenda) => {
    await scheduleType.fn(agenda)(...scheduleType.getParams(job));
    return `job scheduled ${scheduleType.message}`;
  };
  
  const getJobOperation = (checkFunction, jobFunction) => ({
    check: checkFunction,
    fn: jobFunction,
  });
  
  const jobOperations = {
    create: getJobOperation(getCheckJobFormatFunction("url"), defineJob),
    update: getJobOperation(getCheckJobFormatFunction(), defineJob),
    delete: getJobOperation(getCheckJobFormatFunction(), deleteJob),
    cancel: getJobOperation(doNotCheck, cancelJob),
    now: getJobOperation(
      getCheckJobFormatFunction(false, getDefaultJobForSchedule()),
      getScheduleJobFunction(scheduleTypes.now)
    ),
    once: getJobOperation(
      getCheckJobFormatFunction("interval", getDefaultJobForSchedule()),
      getScheduleJobFunction(scheduleTypes.once)
    ),
    every: getJobOperation(
      getCheckJobFormatFunction("interval", getDefaultJobForSchedule()),
      getScheduleJobFunction(scheduleTypes.every)
    ),
  };
  
  const promiseJobOperation = async (
    job,
    jobs,
    agenda,
    jobAssertion,
    jobOperation
  ) => {
    job = await jobOperation.check(job);
    await jobAssertion(job, jobs);
    return jobOperation.fn(job, jobs, agenda);
  };
  
  export { promiseJobOperation, jobOperations, jobAssertions, defineJob };
  