/**
* @module loadAdvents
*/
const fs = require('fs');
const validateSchema = require('../schema/validateSchema');
/**
* @function
* @name loadAdvents
* @description Load and Validate Advents from Directory
* @param {string} dirPath Path to Advents Directory
* @returns {Object[]} Array of Valid Advents
* @throws An Error if Invalid Advents exist, printing the File Names
*/
function loadAdvents(dirPath) {
// Process JSON Files
const { valid, invalid, tags } = fs.readdirSync(dirPath)
// Filter *.advent.js(on)? Files
.filter(name => (
fs.lstatSync(`${dirPath}/${name}`).isFile() &&
(name.endsWith('.advent.js') || name.endsWith('.advent.json'))
))
// Load Advents
.map(name => ({
name,
data: require(`${dirPath}/${name}`)
}))
// Group Valid and Invalid Advents
.reduce((advents, { name, data }) => {
const validatedData = validateSchema(data);
if (validatedData !== false) {
advents.valid.push(validatedData);
for (const tag of validatedData.tags) {
if (!advents.tags.has(tag)) {
advents.tags.set(tag, true);
}
}
} else {
advents.invalid.push(name);
}
return advents;
}, { valid: [], invalid: [], tags: new Map() });
// Log Invalid Advents
if (invalid.length !== 0) {
throw new Error(
`Invalid Advents in "${dirPath}"\n` +
invalid.map(name => `[ERROR]: - ${dirPath}/${name}`).join('\n')
);
}
// Return Valid Advents
return { advents: valid, tags };
}
module.exports = loadAdvents;