feat: add pagination to Profile TopicList

packages/concordia-app/src/components/CustomLoadingTabPane.jsx

@@ -40,7 +40,7 @@ const CustomLoadingTabPane = (props) => {
 CustomLoadingTabPane.propTypes = {
   loading: PropTypes.bool,
   loadingMessage: PropTypes.string,
-  children: PropTypes.element.isRequired,
+  children: PropTypes.element,
 };
 
 export default CustomLoadingTabPane;

packages/concordia-app/src/components/TopicList/index.jsx

@@ -2,7 +2,6 @@ import React, {
   useEffect, useMemo, useState,
 } from 'react';
 import PropTypes from 'prop-types';
-import { useSelector } from 'react-redux';
 import { List } from 'semantic-ui-react';
 import { FORUM_CONTRACT } from 'concordia-shared/src/constants/contracts/ContractNames';
 import TopicListRow from './TopicListRow';
@@ -15,11 +14,8 @@ const { contracts: { [FORUM_CONTRACT]: { methods: { getTopic: { cacheCall: getTo
 const TopicList = (props) => {
   const { topicIds, numberOfItems, onPageChange } = props;
   const [getTopicCallHashes, setGetTopicCallHashes] = useState([]);
-  const drizzleInitialized = useSelector((state) => state.drizzleStatus.initialized);
-  const drizzleInitializationFailed = useSelector((state) => state.drizzleStatus.failed);
 
   useEffect(() => {
-    if (drizzleInitialized && !drizzleInitializationFailed) {
     setGetTopicCallHashes(
       topicIds
         .map((topicId) => ({
@@ -27,8 +23,7 @@ const TopicList = (props) => {
           hash: getTopicChainData(topicId),
         })),
     );
-    }
+  }, [topicIds]);
-  }, [drizzleInitializationFailed, drizzleInitialized, topicIds]);
 
   const topics = useMemo(() => topicIds
     .map((topicId) => {

packages/concordia-app/src/layouts/RegisterLayout/styles.css

@@ -1,7 +1,8 @@
 .particles {
     position: fixed;
-    right: 0;
+    top: 0;
     bottom: 0;
+    right: 0;
     left: 0;
     background: var(--secondary-color);
 }

packages/concordia-app/src/views/Home/HomeTopicList/index.jsx

@@ -19,8 +19,6 @@ const {
 } = drizzle;
 
 const HomeTopicList = () => {
-  const drizzleInitialized = useSelector((state) => state.drizzleStatus.initialized);
-  const drizzleInitializationFailed = useSelector((state) => state.drizzleStatus.failed);
   const [pageNumber, setPageNumber] = useState(1);
   const [numTopics, setNumTopics] = useState(null);
   const [topicIds, setTopicIds] = useState([]);
@@ -29,17 +27,17 @@ const HomeTopicList = () => {
   const numTopicsResult = useSelector((state) => state.contracts[FORUM_CONTRACT].numTopics[numTopicsCallHash]);
 
   useEffect(() => {
-    if (drizzleInitialized && !drizzleInitializationFailed && numTopicsCallHash === null) {
+    if (numTopicsCallHash === null) {
       setNumTopicsCallHash(numTopicsChainData());
     }
-  }, [drizzleInitializationFailed, drizzleInitialized, numTopicsCallHash]);
+  }, [numTopicsCallHash]);
 
   useEffect(() => {
-    if (drizzleInitialized && !drizzleInitializationFailed && numTopics !== null) {
+    if (numTopics !== null) {
       setTopicIds(_.rangeRight(Math.max(numTopics - ITEMS_PER_PAGE * pageNumber, 0),
         numTopics - ITEMS_PER_PAGE * (pageNumber - 1)));
     }
-  }, [drizzleInitializationFailed, drizzleInitialized, numTopics, pageNumber]);
+  }, [numTopics, pageNumber]);
 
   useEffect(() => {
     if (numTopicsResult) {

packages/concordia-app/src/views/Profile/ProfileTopicList/index.jsx

@@ -0,0 +1,89 @@
+import React, {
+  useEffect, useMemo, useState,
+} from 'react';
+import { useSelector } from 'react-redux';
+import { useTranslation } from 'react-i18next';
+import { FORUM_CONTRACT } from 'concordia-shared/src/constants/contracts/ContractNames';
+import { Header } from 'semantic-ui-react';
+import { drizzle } from '../../../redux/store';
+import { ITEMS_PER_PAGE } from '../../../components/PaginationComponent';
+import TopicList from '../../../components/TopicList';
+
+const {
+  contracts: {
+    [FORUM_CONTRACT]: {
+      methods: {
+        getUserTopicCount: { cacheCall: getUserTopicCountChainData },
+        getUserTopics: { cacheCall: getUserTopicsChainData },
+      },
+    },
+  },
+} = drizzle;
+
+const ProfileTopicList = (props) => {
+  const { username, profileAddress } = props;
+  const [pageNumber, setPageNumber] = useState(1);
+
+  const [userTopicCount, setUserTopicCount] = useState(null);
+  const [topicIds, setTopicIds] = useState([]);
+
+  const [getUserTopicCountCallHash, setGetUserTopicCountCallHash] = useState(null);
+  const [getUserTopicsCallHash, setGetUserTopicsCallHash] = useState(null);
+
+  const getUserTopicCountResult = useSelector((state) => state.contracts[FORUM_CONTRACT].getUserTopicCount[getUserTopicCountCallHash]);
+  const getUserTopicsResult = useSelector((state) => state.contracts[FORUM_CONTRACT].getUserTopics[getUserTopicsCallHash]);
+
+  const { t } = useTranslation();
+
+  useEffect(() => {
+    if (getUserTopicCountCallHash === null) {
+      setGetUserTopicCountCallHash(getUserTopicCountChainData(profileAddress));
+    }
+  }, [getUserTopicCountCallHash, profileAddress]);
+
+  useEffect(() => {
+    if (userTopicCount !== null && userTopicCount !== 0) {
+      const startIndex = Math.max(userTopicCount - ITEMS_PER_PAGE * pageNumber, 0);
+      const endIndex = userTopicCount - ITEMS_PER_PAGE * (pageNumber - 1) - 1;
+      setGetUserTopicsCallHash(getUserTopicsChainData(profileAddress, startIndex, endIndex));
+    }
+  }, [pageNumber, profileAddress, userTopicCount]);
+
+  useEffect(() => {
+    if (getUserTopicCountResult) {
+      setUserTopicCount(parseInt(getUserTopicCountResult.value, 10));
+    }
+  }, [getUserTopicCountResult, userTopicCount]);
+
+  useEffect(() => {
+    if (getUserTopicsResult) {
+      setTopicIds(getUserTopicsResult.value.slice().reverse().map(Number));
+    }
+  }, [getUserTopicsResult, userTopicCount]);
+
+  const handlePageChange = (event, data) => {
+    setPageNumber(data.activePage);
+  };
+
+  return useMemo(() => {
+    if (topicIds.length && topicIds.length !== 0) {
+      return (
+          <TopicList
+            topicIds={topicIds}
+            numberOfItems={userTopicCount}
+            onPageChange={handlePageChange}
+          />
+      );
+    }
+    if (userTopicCount === 0) {
+      return (
+          <Header textAlign="center" as="h2">
+              {t('profile.user.has.no.topics.header.message', { user: username })}
+          </Header>
+      );
+    }
+    return null;
+  }, [t, topicIds, userTopicCount, username]);
+};
+
+export default ProfileTopicList;

packages/concordia-app/src/views/Profile/index.jsx

@@ -8,7 +8,7 @@ import { useTranslation } from 'react-i18next';
 import { FORUM_CONTRACT } from 'concordia-shared/src/constants/contracts/ContractNames';
 import { drizzle } from '../../redux/store';
 import CustomLoadingTabPane from '../../components/CustomLoadingTabPane';
-import TopicList from '../../components/TopicList';
+import ProfileTopicList from './ProfileTopicList';
 import PostList from '../../components/PostList';
 import GeneralTab from './GeneralTab';
 import { GENERAL_TAB, POSTS_TAB, TOPICS_TAB } from '../../constants/ProfileTabs';
@@ -76,14 +76,9 @@ const Profile = () => {
     loading, profileAddress, self.address, userPostIds.length, userRegistrationTimestamp, userTopicIds.length, username,
   ]);
 
-  const topicsTab = useMemo(() => (userTopicIds.length > 0
+  const topicsTab = useMemo(() => (
-    ? (<TopicList topicIds={userTopicIds} />)
+      <ProfileTopicList username={username} profileAddress={profileAddress} />
-    : (
+  ), [profileAddress, username]);
-        <Header textAlign="center" as="h2">
-            {t('profile.user.has.no.topics.header.message', { user: username })}
-        </Header>
-    )
-  ), [t, userTopicIds, username]);
 
   const postsTab = useMemo(() => (userPostIds.length > 0
     ? (<PostList postIds={userPostIds} />)

packages/concordia-contracts/contracts/Forum.sol

@@ -94,14 +94,14 @@ contract Forum {
         return userPosts;
     }
 
-    function getAllUserTopics(address userAddress) public view returns (uint[] memory) {
+    function getUserTopicCount(address userAddress) public view returns (uint) {
         require(hasUserSignedUp(userAddress), USER_HAS_NOT_SIGNED_UP);
-        return users[userAddress].topicIDs;
+        return users[userAddress].topicIDs.length;
     }
 
-    function getAllUserPosts(address userAddress) public view returns (uint[] memory) {
+    function getUserPostCount(address userAddress) public view returns (uint) {
         require(hasUserSignedUp(userAddress), USER_HAS_NOT_SIGNED_UP);
-        return users[userAddress].postIDs;
+        return users[userAddress].postIDs.length;
     }
 
     function getUserDateOfRegister(address userAddress) public view returns (uint) {