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import React, {useMemo} from 'react';
import {useVideoConfig, AbsoluteFill, Sequence} from 'remotion';
import * as Fonts from '@remotion/google-fonts';
import transcriptData from './Assets/TextSequences.json';
import Constants from './Assets/Constants.json';

const defaultText = {
	fontFamily: 'Luckiest Guy',
	fontSize: 120,
	textAlign: 'center',
	textShadow:
		'-10px -10px 0 #000, 0   -10px 0 #000, 10px -10px 0 #000, 10px  0   0 #000, 10px  10px 0 #000, 0    10px 0 #000, -10px  10px 0 #000, -10px  0   0 #000',
	position: 'fixed',
	fontWeight: 'bolder',
	color: 'yellow',
	bottom: '30vh',
	height: 'fit-content',
	width: '100%',
};
const subtitle = Constants?.text
	? {
			...defaultText,
			...Constants.text,
	  }
	: defaultText;
Fonts.getAvailableFonts()
	.filter((font) => {
		return font.fontFamily === subtitle.fontFamily;
	})[0]
	.load()
	.then((font) => font.loadFont());

const TextStream = React.memo(() => {
	const {fps} = useVideoConfig();

	const memoizedTranscriptData = useMemo(() => {
		return transcriptData;
	}, []);

	return (
		<AbsoluteFill
			style={{
				backgroundColor: 'transparent',
				justifyContent: 'center',
				alignItems: 'center',
			}}
		>
			{memoizedTranscriptData.map((entry, index) => {
				return (
					<Sequence
						style={subtitle}
						key={index}
						from={entry.start * fps}
						durationInFrames={fps * (entry.end - entry.start)}
					>
						<Letter style={subtitle}>{entry.text}</Letter>
					</Sequence>
				);
			})}
		</AbsoluteFill>
	);
});

const Letter = React.memo(({children, style}) => {
	return <div style={style}>{children}</div>;
});

export default TextStream;