« get me outta code hell

homepage-layout.js « things « data « src - hsmusic-wiki - HSMusic - static wiki software cataloguing collaborative creation
about summary refs log tree commit diff
path: root/src/data/things/homepage-layout.js
blob: 007e023665929e83aaa5dd65db431ac6f005cd8d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
import find from '#find';

import {
  compositeFrom,
  exposeDependency,
  input,
} from '#composite';

import {
  is,
  isCountingNumber,
  isString,
  isStringNonEmpty,
  oneOf,
  validateArrayItems,
  validateInstanceOf,
  validateReference,
} from '#validators';

import Thing, {
  color,
  name,
  referenceList,
  simpleString,
  wikiData,
  withResolvedReference,
} from './thing.js';

export class HomepageLayout extends Thing {
  static [Thing.getPropertyDescriptors] = ({HomepageLayoutRow}) => ({
    // Update & expose

    sidebarContent: simpleString(),

    navbarLinks: {
      flags: {update: true, expose: true},
      update: {validate: validateArrayItems(isStringNonEmpty)},
    },

    rows: {
      flags: {update: true, expose: true},

      update: {
        validate: validateArrayItems(validateInstanceOf(HomepageLayoutRow)),
      },
    },
  })
}

export class HomepageLayoutRow extends Thing {
  static [Thing.getPropertyDescriptors] = ({Album, Group}) => ({
    // Update & expose

    name: name('Unnamed Homepage Row'),

    type: {
      flags: {update: true, expose: true},

      update: {
        validate() {
          throw new Error(`'type' property validator must be overridden`);
        },
      },
    },

    color: color(),

    // Update only

    // These aren't necessarily used by every HomepageLayoutRow subclass, but
    // for convenience of providing this data, every row accepts all wiki data
    // arrays depended upon by any subclass's behavior.
    albumData: wikiData(Album),
    groupData: wikiData(Group),
  });
}

export class HomepageLayoutAlbumsRow extends HomepageLayoutRow {
  static [Thing.getPropertyDescriptors] = (opts, {Album, Group} = opts) => ({
    ...HomepageLayoutRow[Thing.getPropertyDescriptors](opts),

    // Update & expose

    type: {
      flags: {update: true, expose: true},
      update: {
        validate(value) {
          if (value !== 'albums') {
            throw new TypeError(`Expected 'albums'`);
          }

          return true;
        },
      },
    },

    displayStyle: {
      flags: {update: true, expose: true},

      update: {
        validate: is('grid', 'carousel'),
      },

      expose: {
        transform: (displayStyle) =>
          displayStyle ?? 'grid',
      },
    },

    sourceGroup: compositeFrom(`HomepageLayoutAlbumsRow.sourceGroup`, [
      {
        transform: (value, continuation) =>
          (value === 'new-releases' || value === 'new-additions'
            ? value
            : continuation(value)),
      },

      withResolvedReference({
        ref: input.updateValue(),
        data: 'groupData',
        find: input.value(find.group),
      }),

      exposeDependency({
        dependency: '#resolvedReference',
        update: input.value({
          validate:
            oneOf(
              is('new-releases', 'new-additions'),
              validateReference(Group[Thing.referenceType])),
        }),
      }),
    ]),

    sourceAlbums: referenceList({
      class: Album,
      find: find.album,
      data: 'albumData',
    }),

    countAlbumsFromGroup: {
      flags: {update: true, expose: true},
      update: {validate: isCountingNumber},
    },

    actionLinks: {
      flags: {update: true, expose: true},
      update: {validate: validateArrayItems(isString)},
    },
  });
}