0c474a82d0
All rendering now uses go-html HLCRF layout. Templates directory and template parsing code removed. Co-Authored-By: Virgil <virgil@lethean.io>
46 lines
1 KiB
Go
46 lines
1 KiB
Go
// SPDX-Licence-Identifier: EUPL-1.2
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package help
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import (
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"cmp"
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"slices"
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)
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// topicGroup groups topics under a tag for the index page.
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type topicGroup struct {
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Tag string
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Topics []*Topic
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}
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// groupTopicsByTag groups topics by their first tag.
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// Topics without tags are grouped under "other".
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// Groups are sorted alphabetically by tag name.
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func groupTopicsByTag(topics []*Topic) []topicGroup {
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// Sort topics first by Order then Title
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sorted := slices.Clone(topics)
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slices.SortFunc(sorted, func(a, b *Topic) int {
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if a.Order != b.Order {
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return cmp.Compare(a.Order, b.Order)
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}
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return cmp.Compare(a.Title, b.Title)
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})
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groups := make(map[string][]*Topic)
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for _, t := range sorted {
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tag := "other"
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if len(t.Tags) > 0 {
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tag = t.Tags[0]
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}
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groups[tag] = append(groups[tag], t)
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}
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var result []topicGroup
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for tag, topics := range groups {
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result = append(result, topicGroup{Tag: tag, Topics: topics})
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}
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slices.SortFunc(result, func(a, b topicGroup) int {
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return cmp.Compare(a.Tag, b.Tag)
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})
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return result
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}
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