GCTC-NTGC / TalentCloud

import React, { useEffect } from "react";

import nprogress from "nprogress";

import { FormattedMessage, useIntl } from "react-intl";

import { connect } from "react-redux";

import ReactDOM from "react-dom";

import JobIntro from "./JobIntro";

import {

  Job,

  Department,

  JobPosterKeyTask,

  Criteria,

  Manager,

  User,

} from "../../../models/types";

import { RootState } from "../../../store/store";

import {

  getSelectedJob,

  getTasksByJob,

  getCriteriaByJob,

} from "../../../store/Job/jobSelector";

import { DispatchType } from "../../../configureStore";

import {

  setSelectedJob,

  createJob,

  updateJob,

} from "../../../store/Job/jobActions";

import RootContainer from "../../RootContainer";

import { jobBuilderDetails } from "../../../helpers/routes";

import JobBuilderStepContainer from "../JobBuilderStep";

import { getDepartments } from "../../../store/Department/deptSelector";

import { navigate } from "../../../helpers/router";

import { getSelectedManager } from "../../../store/Manager/managerSelector";

import {

  updateManager,

  setSelectedManager,

  fetchManager,

  fetchCurrentManager,

} from "../../../store/Manager/managerActions";

import { getUserById } from "../../../store/User/userSelector";

import { fetchUser } from "../../../store/User/userActions";

import { getLocale } from "../../../helpers/localize";

interface JobIntroPageProps {

  // The id of the edited job, or null for a new job.

  jobId: number | null;

  // List of known department options.

  departments: Department[];

  // If not null, used to prepopulate form values.

  // Note: its possible for jobId to be non-null, but job to be null, if the data hasn't been loaded yet.

  job: Job | null;

  // The manager of this job.

  manager: Manager | null;

  // The user associated with the manager.

  user: User | null;

  // Creates a new job. Must return the new job if successful.

  handleCreateJob: (newJob: Job) => Promise<Job>;

  // Updates an existing job. Must return the updated job if successful.

  handleUpdateJob: (newJob: Job) => Promise<Job>;

  // Updates an existing Manager. Must return the updated manager if successful.

  handleUpdateManager: (manager: Manager) => Promise<Manager>;

  // Load a manager with a particular id.

  loadManager: (managerId: number) => Promise<void>;

  // Load the manager profile of the current authenticated user.

  loadCurrentManager: () => Promise<void>;

  handleFetchUser: (userId: number) => Promise<void>;

}

const JobIntroPage: React.FunctionComponent<JobIntroPageProps> = ({

  jobId,

  manager,

  user,

  job,

  departments,

  handleCreateJob,

  handleUpdateJob,

  handleUpdateManager,

  loadManager,

  loadCurrentManager,

  handleFetchUser,

}): React.ReactElement => {

  const intl = useIntl();

  const locale = getLocale(intl.locale);

  useEffect((): void => {

    if (manager === null) {

      nprogress.start();

      if (jobId === null) {

        loadCurrentManager();

      }

      if (job !== null) {

        loadManager(job.manager_id);

      }

    } else {

      nprogress.done();

    }

  }, [manager, jobId, job, loadCurrentManager, loadManager]);

  // Load user after Manager has loaded

  // eslint-disable-next-line camelcase

  const userId = manager?.user_id;

  useEffect((): void => {

    if (userId) {

      handleFetchUser(userId);

    }

  }, [handleFetchUser, userId]);

  const submitJob = job ? handleUpdateJob : handleCreateJob;

  const handleSubmit = async (

    updatedJob: Job,

    updatedManager: Manager,

  ): Promise<Job> => {

    const jobPromise = submitJob(updatedJob);

    await handleUpdateManager(updatedManager);

    return jobPromise;

  };

  const handleContinue = (chosenLang: string, newJob: Job): void => {

    if (locale === chosenLang) {

      navigate(jobBuilderDetails(chosenLang, newJob.id));

    } else {

      window.location.href = `${jobBuilderDetails(chosenLang, newJob.id)}`;

    }

  };

  return (

    <JobBuilderStepContainer jobId={jobId} currentPage="intro">

      {/** Show the form when the existing job has loaded, or if this is a new job */}

      {manager !== null && user !== null && (job !== null || jobId === null) ? (

        <JobIntro

          job={job}

          manager={manager}

          user={user}

          departments={departments}

          handleSubmit={handleSubmit}

          handleContinue={handleContinue}

        />

      ) : (

        <div

          data-c-container="form"

          data-c-padding="top(triple) bottom(triple)"

        >

          <div

            data-c-background="white(100)"

            data-c-card

            data-c-padding="all(double)"

            data-c-radius="rounded"

            data-c-align="base(centre)"

          >

            <p>

              <FormattedMessage

                id="jobBuilder.intro.managerLoading"

                defaultMessage="Your Manager Profile is loading..."

                description="Message indicating that the manager profile is still being loaded."

              />

            </p>

          </div>

        </div>

      )}

    </JobBuilderStepContainer>

  );

};

const mapStateToProps = (

  state: RootState,

  { jobId }: { jobId: number | null },

): {

  job: Job | null;

  manager: Manager | null;

  departments: Department[];

  user: User | null;

  keyTasks: JobPosterKeyTask[];

  criteria: Criteria[];

} => ({

  job: getSelectedJob(state),

  manager: getSelectedManager(state),

  departments: getDepartments(state),

  user: getUserById(state, {

    // eslint-disable-next-line camelcase, @typescript-eslint/camelcase

    userId: getSelectedManager(state)?.user_id || 0,

  }),

  keyTasks: jobId !== null ? getTasksByJob(state, { jobId }) : [],

  criteria: jobId !== null ? getCriteriaByJob(state, { jobId }) : [],

});

const mapDispatchToProps = (

  dispatch: DispatchType,

): {

  handleCreateJob: (newJob: Job) => Promise<Job>;

  handleUpdateJob: (newJob: Job) => Promise<Job>;

  handleUpdateManager: (newManager: Manager) => Promise<Manager>;

  loadManager: (id: number) => Promise<void>;

  loadCurrentManager: () => Promise<void>;

  handleFetchUser: (userId: number) => Promise<void>;

} => ({

  handleCreateJob: async (newJob: Job): Promise<Job> => {

    const result = await dispatch(createJob(newJob));

    if (!result.error) {

      const resultJob = await result.payload;

      dispatch(setSelectedJob(resultJob.id));

      return resultJob;

    }

    return Promise.reject(result.payload);

  },

  handleUpdateJob: async (newJob: Job): Promise<Job> => {

    const result = await dispatch(updateJob(newJob));

    if (!result.error) {

      const resultJob = await result.payload;

      return resultJob;

    }

    return Promise.reject(result.payload);

  },

  handleUpdateManager: async (newManager: Manager): Promise<Manager> => {

    const result = await dispatch(updateManager(newManager));

    if (!result.error) {

      const resultManager = await result.payload;

      dispatch(setSelectedManager(resultManager.id));

      return resultManager;

    }

    return Promise.reject(result.payload);

  },

  loadManager: async (id: number): Promise<void> => {

    const result = await dispatch(fetchManager(id));

    if (!result.error) {

      const resultManager = await result.payload;

      dispatch(setSelectedManager(resultManager.id));

      return Promise.resolve();

    }

    return Promise.reject(result.error);

  },

  loadCurrentManager: async (): Promise<void> => {

    const result = await dispatch(fetchCurrentManager());

    if (!result.error) {

      const resultManager = await result.payload;

      dispatch(setSelectedManager(resultManager.id));

      return Promise.resolve();

    }

    return Promise.reject(result.error);

  },

  handleFetchUser: async (userId: number): Promise<void> => {

    const result = await dispatch(fetchUser(userId));

    if (!result.error) {

      return Promise.resolve();

    }

    return Promise.reject(result.error);

  },

});

const JobIntroPageContainer = connect(

  mapStateToProps,

  mapDispatchToProps,

)(JobIntroPage);

if (document.getElementById("job-builder-intro")) {

  const container: HTMLElement = document.getElementById(

    "job-builder-intro",

  ) as HTMLElement;

  const jobIdAttr = container.getAttribute("data-job-id");

  const jobId = jobIdAttr ? Number(jobIdAttr) : null;

  ReactDOM.render(

    <RootContainer>

      <JobIntroPageContainer jobId={jobId} />

    </RootContainer>,

    container,

  );

}

export default JobIntroPageContainer;