« get me outta code hell

withTrackSections.js « album « things « composite « data « src - hsmusic-wiki - HSMusic - static wiki software cataloguing collaborative creation
about summary refs log tree commit diff
path: root/src/data/composite/things/album/withTrackSections.js
blob: 0a1ebebc70418a76d5a0fa4a369bdd0dc9e2a264 (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
import {input, templateCompositeFrom} from '#composite';
import find from '#find';
import {empty, filterMultipleArrays, stitchArrays} from '#sugar';
import {isTrackSectionList} from '#validators';

import {exitWithoutDependency, exitWithoutUpdateValue}
  from '#composite/control-flow';
import {withResolvedReferenceList} from '#composite/wiki-data';

import {
  fillMissingListItems,
  withFlattenedList,
  withPropertiesFromList,
  withUnflattenedList,
} from '#composite/data';

export default templateCompositeFrom({
  annotation: `withTrackSections`,

  outputs: ['#trackSections'],

  steps: () => [
    exitWithoutDependency({
      dependency: 'ownTrackData',
      value: input.value([]),
    }),

    exitWithoutUpdateValue({
      mode: input.value('empty'),
      value: input.value([]),
    }),

    // TODO: input.updateValue description down here is a kludge.
    withPropertiesFromList({
      list: input.updateValue({
        validate: isTrackSectionList,
      }),
      prefix: input.value('#sections'),
      properties: input.value([
        'tracks',
        'dateOriginallyReleased',
        'isDefaultTrackSection',
        'name',
        'color',
      ]),
    }),

    fillMissingListItems({
      list: '#sections.tracks',
      fill: input.value([]),
    }),

    fillMissingListItems({
      list: '#sections.isDefaultTrackSection',
      fill: input.value(false),
    }),

    fillMissingListItems({
      list: '#sections.name',
      fill: input.value('Unnamed Track Section'),
    }),

    fillMissingListItems({
      list: '#sections.color',
      fill: input.dependency('color'),
    }),

    withFlattenedList({
      list: '#sections.tracks',
    }).outputs({
      ['#flattenedList']: '#trackRefs',
      ['#flattenedIndices']: '#sections.startIndex',
    }),

    withResolvedReferenceList({
      list: '#trackRefs',
      data: 'ownTrackData',
      notFoundMode: input.value('null'),
      find: input.value(find.track),
    }).outputs({
      ['#resolvedReferenceList']: '#tracks',
    }),

    withUnflattenedList({
      list: '#tracks',
      indices: '#sections.startIndex',
    }).outputs({
      ['#unflattenedList']: '#sections.tracks',
    }),

    {
      dependencies: [
        '#sections.tracks',
        '#sections.name',
        '#sections.color',
        '#sections.dateOriginallyReleased',
        '#sections.isDefaultTrackSection',
        '#sections.startIndex',
      ],

      compute: (continuation, {
        '#sections.tracks': tracks,
        '#sections.name': name,
        '#sections.color': color,
        '#sections.dateOriginallyReleased': dateOriginallyReleased,
        '#sections.isDefaultTrackSection': isDefaultTrackSection,
        '#sections.startIndex': startIndex,
      }) => {
        filterMultipleArrays(
          tracks, name, color, dateOriginallyReleased, isDefaultTrackSection, startIndex,
          tracks => !empty(tracks));

        return continuation({
          ['#trackSections']:
            stitchArrays({
              tracks,
              name,
              color,
              dateOriginallyReleased,
              isDefaultTrackSection,
              startIndex,
            }),
        });
      },
    },
  ],
});