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1 | /* | |
2 | Request Video for Quick And Dirty Updates like: | |
3 | - views | |
4 | - likes | |
5 | - dislikes | |
6 | ||
7 | We can't put it in the same system than basic requests for efficiency. | |
8 | Moreover we don't want to slow down the basic requests with a lot of views/likes/dislikes requests. | |
9 | So we put it an independant request scheduler. | |
10 | */ | |
11 | ||
12 | import { values } from 'lodash' | |
13 | import * as Sequelize from 'sequelize' | |
14 | ||
15 | import { database as db } from '../../initializers/database' | |
16 | import { REQUEST_VIDEO_QADU_TYPES } from '../../initializers' | |
17 | import { addMethodsToModel } from '../utils' | |
18 | import { | |
19 | RequestVideoQaduInstance, | |
20 | RequestVideoQaduAttributes, | |
21 | ||
22 | RequestVideoQaduMethods | |
23 | } from './request-video-qadu-interface' | |
24 | ||
25 | let RequestVideoQadu: Sequelize.Model<RequestVideoQaduInstance, RequestVideoQaduAttributes> | |
26 | let countTotalRequests: RequestVideoQaduMethods.CountTotalRequests | |
27 | let listWithLimitAndRandom: RequestVideoQaduMethods.ListWithLimitAndRandom | |
28 | let removeByRequestIdsAndPod: RequestVideoQaduMethods.RemoveByRequestIdsAndPod | |
29 | let removeAll: RequestVideoQaduMethods.RemoveAll | |
30 | ||
31 | export default function (sequelize: Sequelize.Sequelize, DataTypes: Sequelize.DataTypes) { | |
32 | RequestVideoQadu = sequelize.define<RequestVideoQaduInstance, RequestVideoQaduAttributes>('RequestVideoQadu', | |
33 | { | |
34 | type: { | |
35 | type: DataTypes.ENUM(values(REQUEST_VIDEO_QADU_TYPES)), | |
36 | allowNull: false | |
37 | } | |
38 | }, | |
39 | { | |
40 | timestamps: false, | |
41 | indexes: [ | |
42 | { | |
43 | fields: [ 'podId' ] | |
44 | }, | |
45 | { | |
46 | fields: [ 'videoId' ] | |
47 | } | |
48 | ] | |
49 | } | |
50 | ) | |
51 | ||
52 | const classMethods = [ | |
53 | associate, | |
54 | ||
55 | listWithLimitAndRandom, | |
56 | countTotalRequests, | |
57 | removeAll, | |
58 | removeByRequestIdsAndPod | |
59 | ] | |
60 | addMethodsToModel(RequestVideoQadu, classMethods) | |
61 | ||
62 | return RequestVideoQadu | |
63 | } | |
64 | ||
65 | // ------------------------------ STATICS ------------------------------ | |
66 | ||
67 | function associate (models) { | |
68 | RequestVideoQadu.belongsTo(models.Pod, { | |
69 | foreignKey: { | |
70 | name: 'podId', | |
71 | allowNull: false | |
72 | }, | |
73 | onDelete: 'CASCADE' | |
74 | }) | |
75 | ||
76 | RequestVideoQadu.belongsTo(models.Video, { | |
77 | foreignKey: { | |
78 | name: 'videoId', | |
79 | allowNull: false | |
80 | }, | |
81 | onDelete: 'CASCADE' | |
82 | }) | |
83 | } | |
84 | ||
85 | countTotalRequests = function () { | |
86 | const query = {} | |
87 | return RequestVideoQadu.count(query) | |
88 | } | |
89 | ||
90 | listWithLimitAndRandom = function (limitPods: number, limitRequestsPerPod: number) { | |
91 | const Pod = db.Pod | |
92 | const tableJoin = '' | |
93 | ||
94 | return Pod.listRandomPodIdsWithRequest(limitPods, 'RequestVideoQadus', tableJoin).then(podIds => { | |
95 | // We don't have friends that have requests | |
96 | if (podIds.length === 0) return [] | |
97 | ||
98 | const query = { | |
99 | include: [ | |
100 | { | |
101 | model: RequestVideoQadu['sequelize'].models.Pod, | |
102 | where: { | |
103 | id: { | |
104 | $in: podIds | |
105 | } | |
106 | } | |
107 | }, | |
108 | { | |
109 | model: RequestVideoQadu['sequelize'].models.Video | |
110 | } | |
111 | ] | |
112 | } | |
113 | ||
114 | return RequestVideoQadu.findAll(query).then(requests => { | |
115 | const requestsGrouped = groupAndTruncateRequests(requests, limitRequestsPerPod) | |
116 | return requestsGrouped | |
117 | }) | |
118 | }) | |
119 | } | |
120 | ||
121 | removeByRequestIdsAndPod = function (ids: number[], podId: number) { | |
122 | const query = { | |
123 | where: { | |
124 | id: { | |
125 | $in: ids | |
126 | }, | |
127 | podId | |
128 | } | |
129 | } | |
130 | ||
131 | return RequestVideoQadu.destroy(query) | |
132 | } | |
133 | ||
134 | removeAll = function () { | |
135 | // Delete all requests | |
136 | return RequestVideoQadu.truncate({ cascade: true }) | |
137 | } | |
138 | ||
139 | // --------------------------------------------------------------------------- | |
140 | ||
141 | function groupAndTruncateRequests (requests: RequestVideoQaduInstance[], limitRequestsPerPod: number) { | |
142 | const requestsGrouped = {} | |
143 | ||
144 | requests.forEach(request => { | |
145 | const pod = request.Pod | |
146 | ||
147 | if (!requestsGrouped[pod.id]) requestsGrouped[pod.id] = [] | |
148 | ||
149 | if (requestsGrouped[pod.id].length < limitRequestsPerPod) { | |
150 | requestsGrouped[pod.id].push({ | |
151 | request: request, | |
152 | video: request.Video, | |
153 | pod | |
154 | }) | |
155 | } | |
156 | }) | |
157 | ||
158 | return requestsGrouped | |
159 | } |