From f111685c5886f3e77edfd3621c98d8ac1b9bcce4 Mon Sep 17 00:00:00 2001 From: Armand Philippot Date: Fri, 24 Nov 2023 20:00:08 +0100 Subject: refactor(services, types): reorganize GraphQL fetchers and data types The Typescript mapped types was useful for autocompletion in fetchers but their are harder to maintain. I think it's better to keep each query close to its fetcher to have a better understanding of the fetched data. So I: * colocate queries with their own fetcher * colocate mutations with their own mutator * remove Typescript mapped types for queries and mutations * move data convertors inside graphql services * rename most of data types and fetchers --- .../graphql/helpers/build-comments-tree.ts | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 src/services/graphql/helpers/build-comments-tree.ts (limited to 'src/services/graphql/helpers/build-comments-tree.ts') diff --git a/src/services/graphql/helpers/build-comments-tree.ts b/src/services/graphql/helpers/build-comments-tree.ts new file mode 100644 index 0000000..1534cfe --- /dev/null +++ b/src/services/graphql/helpers/build-comments-tree.ts @@ -0,0 +1,30 @@ +import type { SingleComment } from '../../../types'; + +/** + * Create a comments tree with replies. + * + * @param {SingleComment[]} comments - A flatten comments list. + * @returns {SingleComment[]} An array of comments with replies. + */ +export const buildCommentsTree = ( + comments: SingleComment[] +): SingleComment[] => { + type CommentsHashTable = Record; + + const hashTable: CommentsHashTable = Object.create(null); + const commentsTree: SingleComment[] = []; + + comments.forEach((comment) => { + hashTable[comment.id] = { ...comment, replies: [] }; + }); + + comments.forEach((comment) => { + if (comment.parentId) { + hashTable[comment.parentId].replies.push(hashTable[comment.id]); + } else { + commentsTree.push(hashTable[comment.id]); + } + }); + + return commentsTree; +}; -- cgit v1.2.3