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import React, {useEffect, useRef, useState} from 'react';
import {
Keyboard,
KeyboardAvoidingView,
Platform,
StyleSheet,
TextInput,
View,
} from 'react-native';
import {TouchableOpacity} from 'react-native-gesture-handler';
import ParsedText, {ParseShape} from 'react-native-parsed-text';
import {useDispatch, useSelector} from 'react-redux';
import UpArrowIcon from '../../assets/icons/up_arrow.svg';
import {TAGG_LIGHT_BLUE} from '../../constants';
import {postComment} from '../../services';
import {updateReplyPosted} from '../../store/actions';
import {RootState} from '../../store/rootreducer';
import {ProfilePreviewType} from '../../types';
import {SCREEN_HEIGHT, SCREEN_WIDTH} from '../../utils';
import {Avatar, TaggTypeahead} from '../common';
/**
* This file provides the add comment view for a user.
* Displays the logged in user's profile picture to the left and then provides space to add a comment.
* Comment is posted when enter is pressed as requested by product team.
*/
export interface AddCommentProps {
setNewCommentsAvailable: Function;
objectId: string;
placeholderText: string;
isCommentInFocus: boolean;
}
const AddComment: React.FC<AddCommentProps> = ({
setNewCommentsAvailable,
objectId,
placeholderText,
isCommentInFocus,
}) => {
const [comment, setComment] = useState('');
const [keyboardVisible, setKeyboardVisible] = useState(false);
const [isMentioning, setIsMentioning] = useState(false);
const [mentionQuery, setMentionQuery] = useState('');
const [selectedMention, setSelectedMention] = useState<ProfilePreviewType>();
const [mentions, setMentions] = useState<ProfilePreviewType[]>([]);
const {avatar} = useSelector((state: RootState) => state.user);
const dispatch = useDispatch();
const ref = useRef<TextInput>(null);
const [parsePatterns, setParsePatterns] = useState<ParseShape[]>([]);
const addComment = async () => {
const trimmed = comment.trim();
if (trimmed === '') {
return;
}
const postedComment = await postComment(
trimmed,
objectId,
isCommentInFocus,
);
if (postedComment) {
setComment('');
//Set new reply posted object
//This helps us show the latest reply on top
//Data set is kind of stale but it works
if (isCommentInFocus) {
dispatch(
updateReplyPosted({
comment_id: postedComment.comment_id,
parent_comment: {comment_id: objectId},
}),
);
}
setNewCommentsAvailable(true);
}
};
useEffect(() => {
setParsePatterns(
mentions.map((m) => ({
pattern: new RegExp(`@${m.username}`),
style: {color: TAGG_LIGHT_BLUE},
})),
);
}, [mentions]);
useEffect(() => {
if (selectedMention) {
setComment(
comment.replace(
new RegExp(`@${mentionQuery}`),
`@${selectedMention.username} `,
),
);
setMentions([...mentions, selectedMention]);
setSelectedMention(undefined);
setMentionQuery('');
setIsMentioning(false);
}
}, [selectedMention]);
useEffect(() => {
const showKeyboard = () => setKeyboardVisible(true);
Keyboard.addListener('keyboardWillShow', showKeyboard);
return () => Keyboard.removeListener('keyboardWillShow', showKeyboard);
}, []);
useEffect(() => {
const hideKeyboard = () => setKeyboardVisible(false);
Keyboard.addListener('keyboardWillHide', hideKeyboard);
return () => Keyboard.removeListener('keyboardWillHide', hideKeyboard);
}, []);
//If a comment is in Focus, bring the keyboard up so user is able to type in a reply
useEffect(() => {
if (isCommentInFocus) {
ref.current?.focus();
}
}, [isCommentInFocus]);
return (
<KeyboardAvoidingView
behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
keyboardVerticalOffset={SCREEN_HEIGHT * 0.1}>
{isMentioning && (
<TaggTypeahead
query={mentionQuery}
setSelectedMention={setSelectedMention}
/>
)}
<View
style={[
styles.container,
keyboardVisible ? styles.whiteBackround : {},
]}>
<View style={styles.textContainer}>
<Avatar style={styles.avatar} uri={avatar} />
<TextInput
style={styles.text}
placeholder={placeholderText}
placeholderTextColor="grey"
onChangeText={(newText: string) => {
const newestChar = newText[newText.length - 1];
const deletedChar =
newText.length === comment.length - 1
? comment[comment.length - 1]
: undefined;
if (newestChar === ' ' || deletedChar === '@') {
setIsMentioning(false);
setMentionQuery('');
}
if (newestChar === '@') {
setIsMentioning(true);
}
if (isMentioning) {
const match = newText.match(/.*@(.*)$/);
if (match) {
setMentionQuery(match[1]);
}
}
setComment(newText);
}}
multiline={true}
ref={ref}>
<ParsedText style={styles.text} parse={parsePatterns}>
{comment}
</ParsedText>
</TextInput>
<View style={styles.submitButton}>
<TouchableOpacity style={styles.submitButton} onPress={addComment}>
<UpArrowIcon width={35} height={35} color={'white'} />
</TouchableOpacity>
</View>
</View>
</View>
</KeyboardAvoidingView>
);
};
const styles = StyleSheet.create({
container: {
backgroundColor: '#f7f7f7',
alignItems: 'center',
width: SCREEN_WIDTH,
},
textContainer: {
width: '95%',
flexDirection: 'row',
backgroundColor: '#e8e8e8',
alignItems: 'center',
justifyContent: 'space-between',
margin: '3%',
borderRadius: 25,
},
text: {
flex: 1,
padding: '1%',
marginHorizontal: '1%',
maxHeight: 100,
},
avatar: {
height: 35,
width: 35,
borderRadius: 30,
marginRight: 10,
marginLeft: '3%',
marginVertical: '2%',
alignSelf: 'flex-end',
},
submitButton: {
height: 35,
width: 35,
backgroundColor: TAGG_LIGHT_BLUE,
borderRadius: 999,
justifyContent: 'center',
alignItems: 'center',
marginRight: '3%',
marginVertical: '2%',
alignSelf: 'flex-end',
},
whiteBackround: {
backgroundColor: '#fff',
},
});
export default AddComment;
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