38 lines
1005 B
JavaScript
38 lines
1005 B
JavaScript
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import { createSelector } from 'reselect'
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import finalVariables from './model'
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const unorderedTagStats = finalVariables =>
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finalVariables
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.reduce((stats, variable) => {
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Object.keys(variable.tags).map(
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k => {
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stats[k] = stats[k] || {number: 0, choices: new Set()}
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stats[k].number = stats[k].number + 1
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stats[k].choices.add(variable.tags[k])
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}
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)
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return stats
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}, {}),
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tagStats = stats =>
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Object.keys(stats)
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.reduce((acc, n) => ([...acc, {name: n, ...stats[n]}]), [])
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.sort((a, b) => b.number - a.number)
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export const selectVariables = createSelector(
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[state => state.selectedTags],
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tags =>
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finalVariables.filter(variable =>
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//This variable must be tagged as described in the selected tags array
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tags == null ? true : tags.reduce((result, [k, v]) => result && variable.tags && variable.tags[k] === v, true)
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)
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)
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export const selectTagStats = createSelector(
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[selectVariables],
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variables => {
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return tagStats(unorderedTagStats(variables))
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}
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)
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