Add tag functionality to posts and implement Tags screen

API.js

@@ -143,6 +143,9 @@ const API = {
         if (userid) return getCall("/post/usr/" + userid);
         return getCall("/post/");
     },
+    getPostsByTag(tag) {
+        return getCall("/post/tag/" + tag);
+    },
     getPostsWithTag(userid, tag = "images") {
         if (userid) return getCall("/post/usr/" + userid + "/" + tag);
         return getCall("/post/" + tag);

App.js

@@ -8,6 +8,7 @@ import MaterialIcons from 'react-native-vector-icons/MaterialIcons';
 import Login from "./Views/Login.js"
 import Feed from "./Views/Feed.js"
 import Profile from "./Views/Profile.js"
+import Tags from "./Views/Tags.js"
 import Search from './Views/Search.js';
 import Groups from './Views/Groups.js';
 import Courses from './Views/Courses.js';
@@ -306,6 +307,10 @@ export default function App() {
                                 name="Profile"
                                 component={Profile}
                             />
+                            <Stack.Screen
+                                name="Tags"
+                                component={Tags}
+                            />
                             <Stack.Screen
                                 name="NewPost"
                                 component={NewPostView}

Views/Tags.js

@@ -0,0 +1,77 @@
+import { StatusBar } from 'expo-status-bar';
+import React, { useState, useEffect } from 'react';
+import { View, ActivityIndicator, StyleSheet, SafeAreaView, FlatList } from 'react-native';
+import { Button, IconButton } from 'react-native-paper';
+import API from './../API.js';
+import Post from './../components/Post.js';
+import NewPost from "./../components/NewPost.js";
+import ProfileHeader from '../components/ProfileHeader.js';
+import AsyncStorage from '@react-native-async-storage/async-storage';
+
+let Tags = ({ navigation, route }) => {
+    let [Posts, setPosts] = useState([]);
+    const [loading, setLoading] = useState(true);
+
+    useEffect(() => {
+        let subscribed = true;
+        const getData = async () => {
+            setPosts([]);
+            console.log("Posts by tag", route.params.tag);
+            API.getPostsByTag(route.params.tag).then((data) => {
+                if(!subscribed) return 0;
+                console.log("Posts by tag", data);
+                setPosts(data);
+                setLoading(false);
+            });
+        }
+        getData();
+        return ()=>{
+            subscribed = false;
+        }
+    }, [route.params?.tag]);
+
+    const renderPost = (({ item }) => {
+        if (item.nonOrganicType)
+            return (<></>);
+        return (<Post post={item} />);
+    });
+
+    const header = (
+        <View>
+            
+        </View>
+    )
+
+    return (
+        <SafeAreaView style={styles.container}>
+            <View>
+                {!loading ?
+                    <FlatList
+                        data={Posts}
+                        renderItem={renderPost}
+                        keyExtractor={item => item.lastUpdated || item._id  || item.ceatedAt}
+                        ListHeaderComponent={header}
+                        refreshing={loading}
+                        initialNumToRender={3}
+                        maxToRenderPerBatch={3}
+                        removeClippedSubviews={true}
+                        onRefresh={() => {
+                            API.getPostsByTag(route.params.tag).then(setPosts);
+                        }}
+                    /> :
+                    <></> //TODO: Add empty profile card here
+                }
+            </View>
+            <StatusBar style="auto" />
+        </SafeAreaView>
+    );
+}
+
+export default Tags;
+
+const styles = StyleSheet.create({
+    container: {
+        flex: 1,
+        backgroundColor: "#edf2f7",
+    },
+});

components/Post.js

@@ -1,5 +1,5 @@
 import React, { useState } from 'react';
-import { Text, Pressable, FlatList, StyleSheet, View, Share } from 'react-native';
+import { Text, Pressable, FlatList, StyleSheet, View, Share, Alert, Linking } from 'react-native';
 import Hyperlink from 'react-native-hyperlink'
 import { Button, Card, Chip } from 'react-native-paper';
 import API from './../API.js';
@@ -14,6 +14,7 @@ import i18n from "../i18nMessages.js";
 import ProfilePhotoCircle from './ProfilePhotoCircle.js';
 import { posthog } from './../PostHog.js';
 import { useNavigation } from '@react-navigation/native';
+import ParsedText from 'react-native-parsed-text';
 
 
 let Post = (props) => {
@@ -67,6 +68,29 @@ let Post = (props) => {
     const renderComment = ({ item }) => (
         <Comment comment={item} postid={post._id} />
     );
+    const handleTagPress = (tag) => {
+        // Alert.alert("tag pressed", `You pressed the tag: ${tag}`);
+        // You can navigate to another screen or perform any other action here
+        //remove hastag from tag
+        tag = tag.replace("#", "");
+        navigation.navigate("Tags", { tag: tag });
+    };
+    const handleLinkPress = (url) => {
+        Linking.canOpenURL(url)
+            .then((supported) => {
+                if (supported) {
+                    Linking.openURL(url);
+                } else {
+                    Alert.alert('Error', 'Unable to open the link.');
+                }
+            })
+            .catch((err) => console.error('An error occurred', err));
+    };
+    const handleLinkLongPress = (url) => {
+        Share.share({
+            url: url
+        });
+    };
     return (
         <Card style={styles.card}>
             <Card.Content style={{
@@ -74,7 +98,7 @@ let Post = (props) => {
                 margin: 0,
                 marginBottom: 0
             }}>
-                <Hyperlink linkDefault={true} linkStyle={{ color: '#2980b9' }}>
+
                 {!post.nonOrganicType ?
                     <View>
                         <ProfilePhotoCircle profileid={post.profileid} />
@@ -83,16 +107,23 @@ let Post = (props) => {
 
                         </View>
                         <Pressable onLongPress={() => {
-                                if(cleanContent.length > 10){
+                            if (cleanContent.length > 10) {
                                 Share.share({
                                     message: cleanContent
                                 });
                             }
                         }}>
-                                <Text style={{ fontSize: 16, padding: 3, paddingLeft: 40 }}>{
+                            <ParsedText
-                                    cleanContent
+                                style={styles.text}
-                                }</Text>
+                                parse={[
+                                    { pattern: /#(\w+)/, style: styles.tag, onPress: handleTagPress },
+                                    { pattern: /(https?:\/\/[^\s]+)/, style: styles.link, onPress: handleLinkPress, onLongPress: handleLinkLongPress },
+                                ]}
+                            >
+                                {cleanContent}
+                            </ParsedText>
                         </Pressable>
+
                         <Media content={post.content} postId={post._id} post={post} style={{ paddingTop: 2 }} />
                     </View> :
                     <View>
@@ -101,7 +132,6 @@ let Post = (props) => {
                         <Media content={post.content} />
                     </View>
                 }
-                </Hyperlink>
             </Card.Content>
             <Card.Actions style={{ flexDirection: "row", flow: 4, fontSize: 16, marginLeft: 36, marginTop: -10 }}>
                 <Button
@@ -178,5 +208,18 @@ const styles = StyleSheet.create({
         margin: 8,
         marginTop: 0,
         padding: 8
-    }
+    },
+    text: {
+        fontSize: 16,
+        padding: 3, 
+        paddingLeft: 40 
+    },
+    tag: {
+        color: '#77B5FE',
+        textDecorationLine: 'underline',
+    },
+    link: {
+        color: '#77B5FE',
+        textDecorationLine: 'underline',
+    },
 });

package-lock.json

@@ -40,6 +40,7 @@
         "react-native-autoheight-webview": "^1.6.1",
         "react-native-hyperlink": "0.0.19",
         "react-native-paper": "^4.11.2",
+        "react-native-parsed-text": "^0.0.22",
         "react-native-safe-area-context": "4.10.5",
         "react-native-screens": "3.31.1",
         "react-native-vector-icons": "^9.1.0",
@@ -13160,6 +13161,19 @@
         "color-string": "^1.6.0"
       }
     },
+    "node_modules/react-native-parsed-text": {
+      "version": "0.0.22",
+      "resolved": "https://registry.npmjs.org/react-native-parsed-text/-/react-native-parsed-text-0.0.22.tgz",
+      "integrity": "sha512-hfD83RDXZf9Fvth3DowR7j65fMnlqM9PpxZBGWkzVcUTFtqe6/yPcIoIAgrJbKn6YmtzkivmhWE2MCE4JKBXrQ==",
+      "license": "MIT",
+      "dependencies": {
+        "prop-types": "^15.7.x"
+      },
+      "peerDependencies": {
+        "react": "*",
+        "react-native": "*"
+      }
+    },
     "node_modules/react-native-safe-area-context": {
       "version": "4.10.5",
       "resolved": "https://registry.npmjs.org/react-native-safe-area-context/-/react-native-safe-area-context-4.10.5.tgz",

package.json

@@ -42,6 +42,7 @@
     "react-native-autoheight-webview": "^1.6.1",
     "react-native-hyperlink": "0.0.19",
     "react-native-paper": "^4.11.2",
+    "react-native-parsed-text": "^0.0.22",
     "react-native-safe-area-context": "4.10.5",
     "react-native-screens": "3.31.1",
     "react-native-vector-icons": "^9.1.0",