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* @module submission
*/
const submissionRepo = require("../../repositories/submission");
const digest = require("../digest");
const linkedinAPI = require("../linkedin_learning");
const log = require("../../util/log");
const courseService = require("../course");
const videoService = require("../video");
const mail = require("../mail");
const util = require("../../util/");
const capabilityService = require("../capability");
const categoryService = require("../category");
const competencyService = require("../competency");
/**
* Fetch submission from database by id.
* @param {String} id
* @return {Object} submission object
*/
const fetchById = async (id) => {
const findResult = await submissionRepo.findById(id);
if (findResult.rows.length === 0) {
throw new Error("No submission found with ID - " + id);
}
return findResult.rows[0];
};
/**
* Fetch all submissions from database.
* @return {Array} submissions
*/
const fetchAll = async () => {
const findResult = await submissionRepo.findAll();
return findResult.rows;
};
/**
* Generate unique submission id by hashing
* the email, timestamp and server secret.
* @param {String} email
* @param {String} timestamp
* @return {String} unique submission id
*/
const generateSubmissionID = (email, timestamp) => {
return util.base64ToURLSafe(
digest.hashVarargInBase64(
email,
timestamp,
process.env.SERVER_SECRET,
),
);
};
/**
* Update the status of a submission
* to rejected.
* @param {String} id
*/
const rejectSubmission = async (id) => {
const submission = await fetchById(id);
submission.status = 'rejected';
await updateSubmission(submission);
};
/**
* Map a submission to given RDF parameters and
* update record in database.
* @param {String} id
* @param {Number} capability id of capability
* @param {Number} category id of category
* @param {Number} competency id of competency
* @param {any} phases array or single id number
*/
const mapSubmission = async (id, capability, category, competency, phases) => {
const submission = await fetchById(id);
submission.data.capability = capability;
submission.data.category = category;
submission.data.competency = competency;
submission.data.phases = phases;
const capabilityObj = await capabilityService.fetchById(capability);
const categoryObj = await categoryService.fetchById(category);
const competencyObj = await competencyService.fetchById(competency);
submission.data.capabilityTitle = capabilityObj.title;
submission.data.categoryTitle = categoryObj.title;
submission.data.competencyTitle = competencyObj.title;
await updateSubmission(submission);
};
/**
* Publish a submission: insert it as a new learning object and
* update its status to published.
* @param {String} id
*/
const publishSubmission = async (id) => {
const submission = await fetchById(id);
if (!submission.data.urn) {
throw new Error("Mustn't publish submission without a URN!");
}
if (
!submission.data.capability ||
!submission.data.category ||
!submission.data.competency ||
!submission.data.phases ||
!submission.data.capabilityTitle ||
!submission.data.categoryTitle ||
!submission.data.competencyTitle
) {
throw new Error("Mustn't publish submission without an RDF mapping!");
}
submission.data.type === "COURSE" ?
await courseService.addNewCourse(submission.data) :
await videoService.addNewVideo(submission.data);
submission.status = "published";
await updateSubmission(submission);
};
/**
* Insert new submission in the database and send
* tracking link to user if an email was provided.
* @param {String} type course / video
* @param {String} title
* @param {String} hyperlink
* @param {String} email
*/
const insertNewSubmission = async (type, title, hyperlink, email) => {
const timestamp = (new Date()).toUTCString();
const id = generateSubmissionID(email, timestamp);
const insertionResult = await submissionRepo.insert({
id,
status: "processing",
submitter: email ? email : "anonymous",
data: {timestamp, type, title, hyperlink},
});
if (email) {
mail.sendEmail(
process.env.SUBMISSION_EMAIL_ADDRESS,
email,
"Your RDFmapped Content Submission",
`Thank you very much for submitting content to the RDFmapped website, we really appreciate the contribution.\n` +
`You can track the progress of you submission via the following link: https://rdfmapped.com/submission/${id}`,
`<p>Thank you very much for submitting content to the RDFmapped website, we really appreciate the contribution.</p>` +
`You can track the progress of you submission via the following link: ` +
`<a href="https://rdfmapped.com/submission/${id}" target="_blank" rel="noopener noreferrer">` +
`https://rdfmapped.com/submission/${id}</a>`);
}
await attemptToFindURN(insertionResult.rows[0]);
};
/**
* Verify the integrity of a submission via the LinkedIn
* Learning API and update its status accordingly.
* Upon success, the submission's Unique Resource Identifier
* is set to match the LinkedIn Learning URN.
* @param {Object} submission
*/
const attemptToFindURN = async (submission) => {
try {
log.info("Attempting to find URN for submission(%s)", submission.id);
const result = await linkedinAPI.fetchURNByContent(submission, submission.data.type);
if (result) {
log.info("Found URN(%s) for submission(%s)", result, submission.id);
submission.data.urn = result;
}
submission.status = result ? "pending" : "failed";
await updateSubmission(submission);
} catch (error) {
/* istanbul ignore next */
log.error("Finding URN for submission(%s) failed, err: " +
error.message, submission.id);
}
};
/**
* Update a submission object in the database.
* @param {Object} submission
*/
const updateSubmission = async (submission) => {
await submissionRepo.update(submission);
};
module.exports = {
fetchById,
insertNewSubmission,
fetchAll,
rejectSubmission,
publishSubmission,
mapSubmission,
};
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