61 lines
1.5 KiB
TypeScript
61 lines
1.5 KiB
TypeScript
import { Sidebar } from "types"
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export default function numberSidebarItems(
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sidebarItems: Sidebar.SidebarItem[],
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numbering = [1]
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): Sidebar.SidebarItem[] {
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if (!numbering.length) {
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numbering.push(1)
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}
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const isTopItems = numbering.length === 1
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const numberedItems: Sidebar.SidebarItem[] = []
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let parentItem: Sidebar.InteractiveSidebarItem | undefined
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sidebarItems.forEach((item) => {
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if (item.type === "separator") {
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;(parentItem?.children || numberedItems).push(item)
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return
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}
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// append current number to the item's title
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const currentNumbering = `${numbering.join(".")}.`
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item.chapterTitle = `${currentNumbering} ${
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item.chapterTitle?.trim() || item.title?.trim()
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}`
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item.title = item.title.trim()
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item.number = currentNumbering
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if (isTopItems) {
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// Add chapter category
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numberedItems.push(
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item.type === "category"
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? {
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...item,
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title: item.chapterTitle,
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}
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: {
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type: "category",
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title: item.chapterTitle,
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children: [],
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loaded: true,
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}
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)
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parentItem = numberedItems[
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numberedItems.length - 1
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] as Sidebar.SidebarItemCategory
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}
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if (item.children) {
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item.children = numberSidebarItems(item.children, [...numbering, 1])
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}
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if (item.type !== "category" || !isTopItems) {
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;(parentItem?.children || numberedItems).push(item)
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}
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numbering[numbering.length - 1]++
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})
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return numberedItems
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}
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