From 4950f232e4fb94f23a2d3e9d3d4a174dcb53d21c Mon Sep 17 00:00:00 2001
From: Jeff Sieu <jeffsy00@gmail.com>
Date: Sun, 30 Oct 2022 03:42:02 +0800
Subject: [PATCH] [questions][feat] add sorting, pagination to answers,
 comments

---
 .../questions/ContributeQuestionCard.tsx      |   4 +-
 .../questions/QuestionSearchBar.tsx           |  70 +----
 .../questions/SortOptionsSelect.tsx           |  69 +++++
 .../answer/[answerId]/[answerSlug]/index.tsx  | 103 ++++----
 .../[questionId]/[questionSlug]/index.tsx     | 239 ++++++++++--------
 apps/portal/src/pages/questions/browse.tsx    |   4 -
 6 files changed, 267 insertions(+), 222 deletions(-)
 create mode 100644 apps/portal/src/components/questions/SortOptionsSelect.tsx

diff --git a/apps/portal/src/components/questions/ContributeQuestionCard.tsx b/apps/portal/src/components/questions/ContributeQuestionCard.tsx
index fa25d9f1..02f496aa 100644
--- a/apps/portal/src/components/questions/ContributeQuestionCard.tsx
+++ b/apps/portal/src/components/questions/ContributeQuestionCard.tsx
@@ -28,9 +28,9 @@ export default function ContributeQuestionCard({
   };
 
   return (
-    <div>
+    <div className="w-full">
       <button
-        className="flex flex-col items-stretch justify-center gap-2 rounded-md border border-slate-300 bg-white p-4 text-left hover:bg-slate-100"
+        className="w-full flex flex-col items-stretch justify-center gap-2 rounded-md border border-slate-300 bg-white p-4 text-left hover:bg-slate-100"
         type="button"
         onClick={handleOpenContribute}>
         <TextInput
diff --git a/apps/portal/src/components/questions/QuestionSearchBar.tsx b/apps/portal/src/components/questions/QuestionSearchBar.tsx
index 69bb3ed5..917c342d 100644
--- a/apps/portal/src/components/questions/QuestionSearchBar.tsx
+++ b/apps/portal/src/components/questions/QuestionSearchBar.tsx
@@ -2,40 +2,19 @@ import {
   AdjustmentsHorizontalIcon,
   MagnifyingGlassIcon,
 } from '@heroicons/react/24/outline';
-import { Button, Select, TextInput } from '@tih/ui';
+import { Button, TextInput } from '@tih/ui';
 
-export type SortOption<Value> = {
-  label: string;
-  value: Value;
-};
-
-type SortOrderProps<SortOrder> = {
-  onSortOrderChange?: (sortValue: SortOrder) => void;
-  sortOrderOptions: ReadonlyArray<SortOption<SortOrder>>;
-  sortOrderValue: SortOrder;
-};
+import type { SortOptionsSelectProps } from './SortOptionsSelect';
+import SortOptionsSelect from './SortOptionsSelect';
 
-type SortTypeProps<SortType> = {
-  onSortTypeChange?: (sortType: SortType) => void;
-  sortTypeOptions: ReadonlyArray<SortOption<SortType>>;
-  sortTypeValue: SortType;
+export type QuestionSearchBarProps = SortOptionsSelectProps & {
+  onFilterOptionsToggle: () => void;
 };
 
-export type QuestionSearchBarProps<SortType, SortOrder> =
-  SortOrderProps<SortOrder> &
-    SortTypeProps<SortType> & {
-      onFilterOptionsToggle: () => void;
-    };
-
-export default function QuestionSearchBar<SortType, SortOrder>({
-  onSortOrderChange,
-  sortOrderOptions,
-  sortOrderValue,
-  onSortTypeChange,
-  sortTypeOptions,
-  sortTypeValue,
+export default function QuestionSearchBar({
   onFilterOptionsToggle,
-}: QuestionSearchBarProps<SortType, SortOrder>) {
+  ...sortOptionsSelectProps
+}: QuestionSearchBarProps) {
   return (
     <div className="flex flex-col items-stretch gap-x-4 gap-y-2 lg:flex-row lg:items-end">
       <div className="flex-1 ">
@@ -48,38 +27,7 @@ export default function QuestionSearchBar<SortType, SortOrder>({
         />
       </div>
       <div className="flex items-end justify-end gap-4">
-        <div className="flex items-center gap-2">
-          <Select
-            display="inline"
-            label="Sort by"
-            options={sortTypeOptions}
-            value={sortTypeValue}
-            onChange={(value) => {
-              const chosenOption = sortTypeOptions.find(
-                (option) => String(option.value) === value,
-              );
-              if (chosenOption) {
-                onSortTypeChange?.(chosenOption.value);
-              }
-            }}
-          />
-        </div>
-        <div className="flex items-center gap-2">
-          <Select
-            display="inline"
-            label="Order by"
-            options={sortOrderOptions}
-            value={sortOrderValue}
-            onChange={(value) => {
-              const chosenOption = sortOrderOptions.find(
-                (option) => String(option.value) === value,
-              );
-              if (chosenOption) {
-                onSortOrderChange?.(chosenOption.value);
-              }
-            }}
-          />
-        </div>
+        <SortOptionsSelect {...sortOptionsSelectProps} />
         <div className="lg:hidden">
           <Button
             addonPosition="start"
diff --git a/apps/portal/src/components/questions/SortOptionsSelect.tsx b/apps/portal/src/components/questions/SortOptionsSelect.tsx
new file mode 100644
index 00000000..17e555f7
--- /dev/null
+++ b/apps/portal/src/components/questions/SortOptionsSelect.tsx
@@ -0,0 +1,69 @@
+import { Select } from '~/../../../packages/ui/dist';
+import { SORT_ORDERS, SORT_TYPES } from '~/utils/questions/constants';
+
+import type { SortOrder, SortType } from '~/types/questions.d';
+
+export type SortOption<Value> = {
+  label: string;
+  value: Value;
+};
+
+const sortTypeOptions = SORT_TYPES;
+const sortOrderOptions = SORT_ORDERS;
+
+type SortOrderProps<Order> = {
+  onSortOrderChange?: (sortValue: Order) => void;
+  sortOrderValue: Order;
+};
+
+type SortTypeProps<Type> = {
+  onSortTypeChange?: (sortType: Type) => void;
+  sortTypeValue: Type;
+};
+
+export type SortOptionsSelectProps = SortOrderProps<SortOrder> &
+  SortTypeProps<SortType>;
+
+export default function SortOptionsSelect({
+  onSortOrderChange,
+  sortOrderValue,
+  onSortTypeChange,
+  sortTypeValue,
+}: SortOptionsSelectProps) {
+  return (
+    <div className="flex items-end justify-end gap-4">
+      <div className="flex items-center gap-2">
+        <Select
+          display="inline"
+          label="Sort by"
+          options={sortTypeOptions}
+          value={sortTypeValue}
+          onChange={(value) => {
+            const chosenOption = sortTypeOptions.find(
+              (option) => String(option.value) === value,
+            );
+            if (chosenOption) {
+              onSortTypeChange?.(chosenOption.value);
+            }
+          }}
+        />
+      </div>
+      <div className="flex items-center gap-2">
+        <Select
+          display="inline"
+          label="Order by"
+          options={sortOrderOptions}
+          value={sortOrderValue}
+          onChange={(value) => {
+            const chosenOption = sortOrderOptions.find(
+              (option) => String(option.value) === value,
+            );
+            if (chosenOption) {
+              onSortOrderChange?.(chosenOption.value);
+            }
+          }}
+        />
+      </div>
+    </div>
+  );
+}
diff --git a/apps/portal/src/pages/questions/[questionId]/[questionSlug]/answer/[answerId]/[answerSlug]/index.tsx b/apps/portal/src/pages/questions/[questionId]/[questionSlug]/answer/[answerId]/[answerSlug]/index.tsx
index 81bfaa0c..74ffec20 100644
--- a/apps/portal/src/pages/questions/[questionId]/[questionSlug]/answer/[answerId]/[answerSlug]/index.tsx
+++ b/apps/portal/src/pages/questions/[questionId]/[questionSlug]/answer/[answerId]/[answerSlug]/index.tsx
@@ -1,17 +1,21 @@
 import Head from 'next/head';
 import { useRouter } from 'next/router';
+import { useState } from 'react';
 import { useForm } from 'react-hook-form';
 import { ArrowSmallLeftIcon } from '@heroicons/react/24/outline';
-import { Button, Select, TextArea } from '@tih/ui';
+import { Button, TextArea } from '@tih/ui';
 
 import AnswerCommentListItem from '~/components/questions/AnswerCommentListItem';
 import FullAnswerCard from '~/components/questions/card/FullAnswerCard';
 import FullScreenSpinner from '~/components/questions/FullScreenSpinner';
+import SortOptionsSelect from '~/components/questions/SortOptionsSelect';
 
 import { APP_TITLE } from '~/utils/questions/constants';
 import { useFormRegister } from '~/utils/questions/useFormRegister';
 import { trpc } from '~/utils/trpc';
 
+import { SortOrder, SortType } from '~/types/questions.d';
+
 export type AnswerCommentData = {
   commentContent: string;
 };
@@ -19,6 +23,13 @@ export type AnswerCommentData = {
 export default function QuestionPage() {
   const router = useRouter();
 
+  const [commentSortOrder, setCommentSortOrder] = useState<SortOrder>(
+    SortOrder.DESC,
+  );
+  const [commentSortType, setCommentSortType] = useState<SortType>(
+    SortType.NEW,
+  );
+
   const {
     register: comRegister,
     reset: resetComment,
@@ -36,10 +47,20 @@ export default function QuestionPage() {
     { answerId: answerId as string },
   ]);
 
-  const { data: comments } = trpc.useQuery([
-    'questions.answers.comments.getAnswerComments',
-    { answerId: answerId as string },
-  ]);
+  const { data: answerCommentsData } = trpc.useInfiniteQuery(
+    [
+      'questions.answers.comments.getAnswerComments',
+      {
+        answerId: answerId as string,
+        sortOrder: commentSortOrder,
+        sortType: commentSortType,
+      },
+    ],
+    {
+      getNextPageParam: (lastPage) => lastPage.nextCursor,
+      keepPreviousData: true,
+    },
+  );
 
   const { mutate: addComment } = trpc.useMutation(
     'questions.answers.comments.user.create',
@@ -47,7 +68,11 @@ export default function QuestionPage() {
       onSuccess: () => {
         utils.invalidateQueries([
           'questions.answers.comments.getAnswerComments',
-          { answerId: answerId as string },
+          {
+            answerId: answerId as string,
+            sortOrder: SortOrder.DESC,
+            sortType: SortType.NEW,
+          },
         ]);
       },
     },
@@ -108,32 +133,6 @@ export default function QuestionPage() {
                   rows={2}
                 />
                 <div className="my-3 flex justify-between">
-                  <div className="flex items-baseline gap-2">
-                    <span aria-hidden={true} className="text-sm">
-                      Sort by:
-                    </span>
-                    <Select
-                      display="inline"
-                      isLabelHidden={true}
-                      label="Sort by"
-                      options={[
-                        {
-                          label: 'Most recent',
-                          value: 'most-recent',
-                        },
-                        {
-                          label: 'Most upvotes',
-                          value: 'most-upvotes',
-                        },
-                      ]}
-                      value="most-recent"
-                      onChange={(value) => {
-                        // eslint-disable-next-line no-console
-                        console.log(value);
-                      }}
-                    />
-                  </div>
-
                   <Button
                     disabled={!isCommentDirty || !isCommentValid}
                     label="Post"
@@ -142,18 +141,34 @@ export default function QuestionPage() {
                   />
                 </div>
               </form>
-
-              {(comments ?? []).map((comment) => (
-                <AnswerCommentListItem
-                  key={comment.id}
-                  answerCommentId={comment.id}
-                  authorImageUrl={comment.userImage}
-                  authorName={comment.user}
-                  content={comment.content}
-                  createdAt={comment.createdAt}
-                  upvoteCount={comment.numVotes}
-                />
-              ))}
+              <div className="flex flex-col gap-2">
+                <div className="flex items-center justify-between gap-2">
+                  <p className="text-lg">Comments</p>
+                  <div className="flex items-end gap-2">
+                    <SortOptionsSelect
+                      sortOrderValue={commentSortOrder}
+                      sortTypeValue={commentSortType}
+                      onSortOrderChange={setCommentSortOrder}
+                      onSortTypeChange={setCommentSortType}
+                    />
+                  </div>
+                </div>
+                {/* TODO: Allow to load more pages */}
+                {(answerCommentsData?.pages ?? []).flatMap(
+                  ({ processedQuestionAnswerCommentsData: comments }) =>
+                    comments.map((comment) => (
+                      <AnswerCommentListItem
+                        key={comment.id}
+                        answerCommentId={comment.id}
+                        authorImageUrl={comment.userImage}
+                        authorName={comment.user}
+                        content={comment.content}
+                        createdAt={comment.createdAt}
+                        upvoteCount={comment.numVotes}
+                      />
+                    )),
+                )}
+              </div>
             </div>
           </div>
         </div>
diff --git a/apps/portal/src/pages/questions/[questionId]/[questionSlug]/index.tsx b/apps/portal/src/pages/questions/[questionId]/[questionSlug]/index.tsx
index c9be44ce..ac84d7d7 100644
--- a/apps/portal/src/pages/questions/[questionId]/[questionSlug]/index.tsx
+++ b/apps/portal/src/pages/questions/[questionId]/[questionSlug]/index.tsx
@@ -1,19 +1,23 @@
 import Head from 'next/head';
 import { useRouter } from 'next/router';
+import { useState } from 'react';
 import { useForm } from 'react-hook-form';
 import { ArrowSmallLeftIcon } from '@heroicons/react/24/outline';
-import { Button, Collapsible, Select, TextArea } from '@tih/ui';
+import { Button, Collapsible, HorizontalDivider, TextArea } from '@tih/ui';
 
 import AnswerCommentListItem from '~/components/questions/AnswerCommentListItem';
 import FullQuestionCard from '~/components/questions/card/question/FullQuestionCard';
 import QuestionAnswerCard from '~/components/questions/card/QuestionAnswerCard';
 import FullScreenSpinner from '~/components/questions/FullScreenSpinner';
+import SortOptionsSelect from '~/components/questions/SortOptionsSelect';
 
 import { APP_TITLE } from '~/utils/questions/constants';
 import createSlug from '~/utils/questions/createSlug';
 import { useFormRegister } from '~/utils/questions/useFormRegister';
 import { trpc } from '~/utils/trpc';
 
+import { SortOrder, SortType } from '~/types/questions.d';
+
 export type AnswerQuestionData = {
   answerContent: string;
 };
@@ -24,6 +28,19 @@ export type QuestionCommentData = {
 
 export default function QuestionPage() {
   const router = useRouter();
+
+  const [answerSortOrder, setAnswerSortOrder] = useState<SortOrder>(
+    SortOrder.DESC,
+  );
+  const [answerSortType, setAnswerSortType] = useState<SortType>(SortType.NEW);
+
+  const [commentSortOrder, setCommentSortOrder] = useState<SortOrder>(
+    SortOrder.DESC,
+  );
+  const [commentSortType, setCommentSortType] = useState<SortType>(
+    SortType.NEW,
+  );
+
   const {
     register: ansRegister,
     handleSubmit,
@@ -54,10 +71,20 @@ export default function QuestionPage() {
 
   const utils = trpc.useContext();
 
-  const { data: comments } = trpc.useQuery([
-    'questions.questions.comments.getQuestionComments',
-    { questionId: questionId as string },
-  ]);
+  const { data: commentData } = trpc.useInfiniteQuery(
+    [
+      'questions.questions.comments.getQuestionComments',
+      {
+        questionId: questionId as string,
+        sortOrder: commentSortOrder,
+        sortType: commentSortType,
+      },
+    ],
+    {
+      getNextPageParam: (lastPage) => lastPage.nextCursor,
+      keepPreviousData: true,
+    },
+  );
 
   const { mutate: addComment } = trpc.useMutation(
     'questions.questions.comments.user.create',
@@ -70,10 +97,20 @@ export default function QuestionPage() {
     },
   );
 
-  const { data: answers } = trpc.useQuery([
-    'questions.answers.getAnswers',
-    { questionId: questionId as string },
-  ]);
+  const { data: answerData } = trpc.useInfiniteQuery(
+    [
+      'questions.answers.getAnswers',
+      {
+        questionId: questionId as string,
+        sortOrder: answerSortOrder,
+        sortType: answerSortType,
+      },
+    ],
+    {
+      getNextPageParam: (lastPage) => lastPage.nextCursor,
+      keepPreviousData: true,
+    },
+  );
 
   const { mutate: addAnswer } = trpc.useMutation(
     'questions.answers.user.create',
@@ -134,7 +171,7 @@ export default function QuestionPage() {
             variant="secondary"
           />
         </div>
-        <div className="flex w-full  justify-center overflow-y-auto py-4 px-5">
+        <div className="flex w-full justify-center overflow-y-auto py-4 px-5">
           <div className="flex max-w-7xl flex-1 flex-col gap-2">
             <FullQuestionCard
               {...question}
@@ -159,69 +196,62 @@ export default function QuestionPage() {
               }}
             />
             <div className="mx-2">
-              <Collapsible label={`${(comments ?? []).length} comment(s)`}>
-                <form
-                  className="mb-2"
-                  onSubmit={handleCommentSubmit(handleSubmitComment)}>
-                  <TextArea
-                    {...commentRegister('commentContent', {
-                      minLength: 1,
-                      required: true,
-                    })}
-                    label="Post a comment"
-                    required={true}
-                    resize="vertical"
-                    rows={2}
-                  />
-                  <div className="my-3 flex justify-between">
-                    <div className="flex items-baseline gap-2">
-                      <span aria-hidden={true} className="text-sm">
-                        Sort by:
-                      </span>
-                      <Select
-                        display="inline"
-                        isLabelHidden={true}
-                        label="Sort by"
-                        options={[
-                          {
-                            label: 'Most recent',
-                            value: 'most-recent',
-                          },
-                          {
-                            label: 'Most upvotes',
-                            value: 'most-upvotes',
-                          },
-                        ]}
-                        value="most-recent"
-                        onChange={(value) => {
-                          // eslint-disable-next-line no-console
-                          console.log(value);
-                        }}
+              <Collapsible label={`${question.numComments} comment(s)`}>
+                <div className="mt-4 px-4">
+                  <form
+                    className="mb-2"
+                    onSubmit={handleCommentSubmit(handleSubmitComment)}>
+                    <TextArea
+                      {...commentRegister('commentContent', {
+                        minLength: 1,
+                        required: true,
+                      })}
+                      label="Post a comment"
+                      required={true}
+                      resize="vertical"
+                      rows={2}
+                    />
+                    <div className="my-3 flex justify-between">
+                      <Button
+                        disabled={!isCommentDirty || !isCommentValid}
+                        label="Post"
+                        type="submit"
+                        variant="primary"
                       />
                     </div>
-
-                    <Button
-                      disabled={!isCommentDirty || !isCommentValid}
-                      label="Post"
-                      type="submit"
-                      variant="primary"
-                    />
+                  </form>
+                  {/* TODO: Add button to load more */}
+                  <div className="flex flex-col gap-2">
+                    <div className="flex items-center justify-between gap-2">
+                      <p className="text-lg">Comments</p>
+                      <div className="flex items-end gap-2">
+                        <SortOptionsSelect
+                          sortOrderValue={commentSortOrder}
+                          sortTypeValue={commentSortType}
+                          onSortOrderChange={setCommentSortOrder}
+                          onSortTypeChange={setCommentSortType}
+                        />
+                      </div>
+                    </div>
+                    {(commentData?.pages ?? []).flatMap(
+                      ({ processedQuestionCommentsData: comments }) =>
+                        comments.map((comment) => (
+                          <AnswerCommentListItem
+                            key={comment.id}
+                            answerCommentId={comment.id}
+                            authorImageUrl={comment.userImage}
+                            authorName={comment.user}
+                            content={comment.content}
+                            createdAt={comment.createdAt}
+                            upvoteCount={comment.numVotes}
+                          />
+                        )),
+                    )}
                   </div>
-                </form>
-
-                {(comments ?? []).map((comment) => (
-                  <AnswerCommentListItem
-                    key={comment.id}
-                    answerCommentId={comment.id}
-                    authorImageUrl={comment.userImage}
-                    authorName={comment.user}
-                    content={comment.content}
-                    createdAt={comment.createdAt}
-                    upvoteCount={comment.numVotes}
-                  />
-                ))}
+                </div>
               </Collapsible>
             </div>
+            <HorizontalDivider />
             <form onSubmit={handleSubmit(handleSubmitAnswer)}>
               <TextArea
                 {...answerRegister('answerContent', {
@@ -234,34 +264,6 @@ export default function QuestionPage() {
                 rows={5}
               />
               <div className="mt-3 mb-1 flex justify-between">
-                <div className="flex items-baseline justify-start gap-2">
-                  <p>{(answers ?? []).length} answers</p>
-                  <div className="flex items-baseline gap-2">
-                    <span aria-hidden={true} className="text-sm">
-                      Sort by:
-                    </span>
-                    <Select
-                      display="inline"
-                      isLabelHidden={true}
-                      label="Sort by"
-                      options={[
-                        {
-                          label: 'Most recent',
-                          value: 'most-recent',
-                        },
-                        {
-                          label: 'Most upvotes',
-                          value: 'most-upvotes',
-                        },
-                      ]}
-                      value="most-recent"
-                      onChange={(value) => {
-                        // eslint-disable-next-line no-console
-                        console.log(value);
-                      }}
-                    />
-                  </div>
-                </div>
                 <Button
                   disabled={!isDirty || !isValid}
                   label="Contribute"
@@ -270,21 +272,36 @@ export default function QuestionPage() {
                 />
               </div>
             </form>
-            {(answers ?? []).map((answer) => (
-              <QuestionAnswerCard
-                key={answer.id}
-                answerId={answer.id}
-                authorImageUrl={answer.userImage}
-                authorName={answer.user}
-                commentCount={answer.numComments}
-                content={answer.content}
-                createdAt={answer.createdAt}
-                href={`${router.asPath}/answer/${answer.id}/${createSlug(
-                  answer.content,
-                )}`}
-                upvoteCount={answer.numVotes}
-              />
-            ))}
+            <div className="flex items-center justify-between gap-2">
+              <p className="text-xl">{question.numAnswers} answers</p>
+              <div className="flex items-end gap-2">
+                <SortOptionsSelect
+                  sortOrderValue={answerSortOrder}
+                  sortTypeValue={answerSortType}
+                  onSortOrderChange={setAnswerSortOrder}
+                  onSortTypeChange={setAnswerSortType}
+                />
+              </div>
+            </div>
+            {/* TODO: Add button to load more */}
+            {(answerData?.pages ?? []).flatMap(
+              ({ processedAnswersData: answers }) =>
+                answers.map((answer) => (
+                  <QuestionAnswerCard
+                    key={answer.id}
+                    answerId={answer.id}
+                    authorImageUrl={answer.userImage}
+                    authorName={answer.user}
+                    commentCount={answer.numComments}
+                    content={answer.content}
+                    createdAt={answer.createdAt}
+                    href={`${router.asPath}/answer/${answer.id}/${createSlug(
+                      answer.content,
+                    )}`}
+                    upvoteCount={answer.numVotes}
+                  />
+                )),
+            )}
           </div>
         </div>
       </div>
diff --git a/apps/portal/src/pages/questions/browse.tsx b/apps/portal/src/pages/questions/browse.tsx
index 89ab3c6d..0c8d39f9 100644
--- a/apps/portal/src/pages/questions/browse.tsx
+++ b/apps/portal/src/pages/questions/browse.tsx
@@ -16,8 +16,6 @@ import LocationTypeahead from '~/components/questions/typeahead/LocationTypeahea
 import RoleTypeahead from '~/components/questions/typeahead/RoleTypeahead';
 
 import type { QuestionAge } from '~/utils/questions/constants';
-import { SORT_TYPES } from '~/utils/questions/constants';
-import { SORT_ORDERS } from '~/utils/questions/constants';
 import { APP_TITLE } from '~/utils/questions/constants';
 import { QUESTION_AGES, QUESTION_TYPES } from '~/utils/questions/constants';
 import createSlug from '~/utils/questions/createSlug';
@@ -457,9 +455,7 @@ export default function QuestionsBrowsePage() {
                   }}
                 />
                 <QuestionSearchBar
-                  sortOrderOptions={SORT_ORDERS}
                   sortOrderValue={sortOrder}
-                  sortTypeOptions={SORT_TYPES}
                   sortTypeValue={sortType}
                   onFilterOptionsToggle={() => {
                     setFilterDrawerOpen(!filterDrawerOpen);