lemmur-app-android/lib/comment_tree.dart

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import 'package:lemmy_api_client/lemmy_api_client.dart';
class CommentTree {
CommentView comment;
List<CommentTree> children;
CommentTree(this.comment, [this.children]) {
children ??= [];
}
static List<CommentTree> fromList(List<CommentView> comments) {
CommentTree gatherChildren(CommentTree parent) {
for (var el in comments) {
if (el.parentId == parent.comment.id) {
parent.children.add(gatherChildren(CommentTree(el)));
}
}
return parent;
}
var parents = <CommentTree>[];
// first pass to get all the parents
for (var i = 0; i < comments.length; i++) {
if (comments[i].parentId == null) {
parents.add(CommentTree(comments[i]));
}
}
var result = parents.map(gatherChildren).toList();
return result;
}
}