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/**
* Module dependencies
*/
import $ from 'cafy'; import ID from '../../../../cafy-id';
import Note, { pack } from '../../../../models/note';
/**
* Show a context of a note
*
* @param {any} params
* @param {any} user
* @return {Promise<any>}
*/
module.exports = (params, user) => new Promise(async (res, rej) => {
// Get 'noteId' parameter
const [noteId, noteIdErr] = $.type(ID).get(params.noteId);
if (noteIdErr) return rej('invalid noteId param');
// Get 'limit' parameter
const [limit = 10, limitErr] = $.num.optional().range(1, 100).get(params.limit);
if (limitErr) return rej('invalid limit param');
// Get 'offset' parameter
const [offset = 0, offsetErr] = $.num.optional().min(0).get(params.offset);
if (offsetErr) return rej('invalid offset param');
// Lookup note
const note = await Note.findOne({
_id: noteId
});
if (note === null) {
return rej('note not found');
}
const context = [];
let i = 0;
async function get(id) {
i++;
const p = await Note.findOne({ _id: id });
if (i > offset) {
context.push(p);
}
if (context.length == limit) {
return;
}
if (p.replyId) {
await get(p.replyId);
}
}
if (note.replyId) {
await get(note.replyId);
}
// Serialize
res(await Promise.all(context.map(async note =>
await pack(note, user))));
});
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