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Dominic / patchbay



Tree: 644b1ba03f8e4f6fd3bd1ae92d31b7eb55791fd3

Files: 644b1ba03f8e4f6fd3bd1ae92d31b7eb55791fd3 / modules_basic / relationships.js

1019 bytesRaw
1var pull = require('pull-stream')
2var plugs = require('../plugs')
3
4var sbot_query = plugs.first(exports.sbot_query = [])
5
6//this is a bit crude, and doesn't actually show unfollows yet.
7
8function makeQuery (a, b) {
9  return {"$filter": {
10      value: {
11        author: a,
12        content: {
13          type: 'contact',
14          contact: b,
15          following: true
16        }
17      },
18    }}
19}
20
21
22exports.follows = function (id, cb) {
23  return sbot_query({query: [
24    makeQuery(id, {$prefix:"@"}),
25    {"$map": ['value', 'content', 'contact']}
26  ]})
27}
28
29exports.followers = function (id) {
30  return sbot_query({query: [
31    makeQuery({$prefix:"@"}, id),
32    {"$map": ['value', 'author']}
33  ]})
34}
35
36exports.follower_of = function (source, dest, cb) {
37  pull(
38    sbot_query({query: [
39      makeQuery(source, dest),
40      {$map: ['value', 'content', 'following']}
41    ]}),
42    pull.collect(function (err, ary) {
43      if(err) return cb(err)
44      else cb(null, ary.pop()) //will be true, or undefined/false
45    })
46  )
47}
48
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