import React, { useContext } from 'react';
import {
	View, Text, StyleSheet, Clipboard
} from 'react-native';
import PropTypes from 'prop-types';
import FastImage from '@rocket.chat/react-native-fast-image';
import isEqual from 'lodash/isEqual';

import Touchable from './Touchable';
import openLink from '../../utils/openLink';
import sharedStyles from '../../views/Styles';
import { themes } from '../../constants/colors';
import { withTheme } from '../../theme';
import { LISTENER } from '../Toast';
import EventEmitter from '../../utils/events';
import I18n from '../../i18n';
import MessageContext from './Context';

const styles = StyleSheet.create({
	button: {
		marginTop: 6
	},
	container: {
		flex: 1,
		flexDirection: 'column',
		borderRadius: 4,
		borderWidth: 1
	},
	textContainer: {
		flex: 1,
		flexDirection: 'column',
		padding: 15,
		justifyContent: 'flex-start',
		alignItems: 'flex-start'
	},
	title: {
		fontSize: 16,
		...sharedStyles.textMedium
	},
	description: {
		fontSize: 16,
		...sharedStyles.textRegular
	},
	marginTop: {
		marginTop: 4
	},
	image: {
		width: '100%',
		height: 150,
		borderTopLeftRadius: 4,
		borderTopRightRadius: 4
	}
});

const UrlImage = React.memo(({ image }) => {
	if (!image) {
		return null;
	}
	const { baseUrl, user } = useContext(MessageContext);
	image = image.includes('http') ? image : `${ baseUrl }/${ image }?rc_uid=${ user.id }&rc_token=${ user.token }`;
	return <FastImage source={{ uri: image }} style={styles.image} resizeMode={FastImage.resizeMode.cover} />;
}, (prevProps, nextProps) => prevProps.image === nextProps.image);

const UrlContent = React.memo(({ title, description, theme }) => (
	<View style={styles.textContainer}>
		{title ? <Text style={[styles.title, { color: themes[theme].tintColor }]} numberOfLines={2}>{title}</Text> : null}
		{description ? <Text style={[styles.description, { color: themes[theme].auxiliaryText }]} numberOfLines={2}>{description}</Text> : null}
	</View>
), (prevProps, nextProps) => {
	if (prevProps.title !== nextProps.title) {
		return false;
	}
	if (prevProps.description !== nextProps.description) {
		return false;
	}
	if (prevProps.theme !== nextProps.theme) {
		return false;
	}
	return true;
});

const Url = React.memo(({ url, index, theme }) => {
	if (!url) {
		return null;
	}

	const onPress = () => openLink(url.url, theme);

	const onLongPress = () => {
		Clipboard.setString(url.url);
		EventEmitter.emit(LISTENER, { message: I18n.t('Copied_to_clipboard') });
	};

	return (
		<Touchable
			onPress={onPress}
			onLongPress={onLongPress}
			style={[
				styles.button,
				index > 0 && styles.marginTop,
				styles.container,
				{
					backgroundColor: themes[theme].chatComponentBackground,
					borderColor: themes[theme].borderColor
				}
			]}
			background={Touchable.Ripple(themes[theme].bannerBackground)}
		>
			<>
				<UrlImage image={url.image} />
				<UrlContent title={url.title} description={url.description} theme={theme} />
			</>
		</Touchable>
	);
}, (oldProps, newProps) => isEqual(oldProps.url, newProps.url) && oldProps.theme === newProps.theme);

const Urls = React.memo(({ urls, theme }) => {
	if (!urls || urls.length === 0) {
		return null;
	}

	return urls.map((url, index) => (
		<Url url={url} key={url.url} index={index} theme={theme} />
	));
}, (oldProps, newProps) => isEqual(oldProps.urls, newProps.urls) && oldProps.theme === newProps.theme);

UrlImage.propTypes = {
	image: PropTypes.string
};
UrlImage.displayName = 'MessageUrlImage';

UrlContent.propTypes = {
	title: PropTypes.string,
	description: PropTypes.string,
	theme: PropTypes.string
};
UrlContent.displayName = 'MessageUrlContent';

Url.propTypes = {
	url: PropTypes.object.isRequired,
	index: PropTypes.number,
	theme: PropTypes.string
};
Url.displayName = 'MessageUrl';

Urls.propTypes = {
	urls: PropTypes.array,
	theme: PropTypes.string
};
Urls.displayName = 'MessageUrls';

export default withTheme(Urls);