fix: users projects shifting around while in queue (#6452)

fix: users projects shifting around while in queue due to download count changes

apps/frontend/src/utils/projects.ts

@@ -0,0 +1,50 @@
+import type { Labrinth } from '@modrinth/api-client'
+
+type ProjectSorting = 'publish_time' | 'queue_time' | 'downloads'
+type ProjectStatusPriority = { order: number; sort: ProjectSorting }
+// An order can only be the same as another if the sorting type is the same.
+const projectStatusPriority: {
+	[status in Labrinth.Projects.v2.ProjectStatus]: ProjectStatusPriority
+} = {
+	approved: { order: 1, sort: 'downloads' },
+	scheduled: { order: 1, sort: 'downloads' },
+	archived: { order: 2, sort: 'downloads' },
+	unlisted: { order: 3, sort: 'downloads' },
+	private: { order: 4, sort: 'downloads' },
+	processing: { order: 5, sort: 'queue_time' },
+	withheld: { order: 6, sort: 'publish_time' },
+	rejected: { order: 7, sort: 'publish_time' },
+	draft: { order: 8, sort: 'publish_time' },
+	unknown: { order: 9, sort: 'publish_time' },
+}
+
+function getProjectSortValue(
+	project: Labrinth.Projects.v3.Project | Labrinth.Projects.v2.Project,
+	sorting: ProjectSorting,
+): number {
+	switch (sorting) {
+		case 'publish_time':
+			return new Date(project.published).getTime()
+		case 'queue_time':
+			return new Date(project.queued || project.published).getTime()
+		case 'downloads':
+			return project.downloads
+		default:
+			return 0
+	}
+}
+
+export const projectUserSorting = (
+	first: Labrinth.Projects.v3.Project | Labrinth.Projects.v2.Project,
+	second: Labrinth.Projects.v3.Project | Labrinth.Projects.v2.Project,
+): number => {
+	const priority1 = projectStatusPriority[first.status] || projectStatusPriority['unknown']
+	const priority2 = projectStatusPriority[second.status] || projectStatusPriority['unknown']
+
+	if (priority1.order !== priority2.order) {
+		return priority1.order - priority2.order
+	} else if (priority1.sort !== priority2.sort) {
+		return 0
+	}
+	return getProjectSortValue(second, priority2.sort) - getProjectSortValue(first, priority1.sort)
+}