egirlskey/src/server/api/endpoints/aggregation/users/following.ts
2018-05-02 18:06:16 +09:00

61 lines
1.4 KiB
TypeScript

/**
* Module dependencies
*/
import $ from 'cafy'; import ID from '../../../../../cafy-id';
import User from '../../../../../models/user';
import FollowingLog from '../../../../../models/following-log';
/**
* Aggregate following of a user
*/
module.exports = (params) => new Promise(async (res, rej) => {
// Get 'userId' parameter
const [userId, userIdErr] = $.type(ID).get(params.userId);
if (userIdErr) return rej('invalid userId param');
// Lookup user
const user = await User.findOne({
_id: userId
}, {
fields: {
_id: true
}
});
if (user === null) {
return rej('user not found');
}
const today = new Date();
const graph = [];
today.setMinutes(0);
today.setSeconds(0);
today.setMilliseconds(0);
let cursorDate = new Date(today.getTime());
let cursorTime = cursorDate.setDate(new Date(today.getTime()).getDate() + 1);
for (let i = 0; i < 30; i++) {
graph.push(FollowingLog.findOne({
createdAt: { $lt: new Date(cursorTime / 1000) },
userId: user._id
}, {
sort: { createdAt: -1 },
}).then(log => {
cursorDate = new Date(today.getTime());
cursorTime = cursorDate.setDate(today.getDate() - i);
return {
date: {
year: cursorDate.getFullYear(),
month: cursorDate.getMonth() + 1, // In JavaScript, month is zero-based.
day: cursorDate.getDate()
},
count: log ? log.count : 0
};
}));
}
res(await Promise.all(graph));
});