import React, { useEffect, useRef, useState } from 'react';
import {
    Dimensions,
    Modal,
    StyleProp,
    StyleSheet,
    Text,
    TextStyle,
    TouchableOpacity,
    TouchableWithoutFeedback,
    View,
    ViewStyle
} from 'react-native';
import { Gesture, GestureDetector } from 'react-native-gesture-handler';
import { runOnJS } from 'react-native-reanimated';

interface MenuItem {
    label: string;
    svg?: React.ReactNode;
    onPress: () => void;
    textStyle?: StyleProp<TextStyle>;
}

interface ContextMenuProps {
    children: React.ReactNode;
    items: MenuItem[];
    menuStyle?: StyleProp<ViewStyle>;
    menuItemStyle?: StyleProp<ViewStyle>;
    menuTextStyle?: StyleProp<TextStyle>;
    dividerStyle?: StyleProp<ViewStyle>;
    onOpen?: () => void;
    onClose?: () => void;
    longPressDuration?: number;
    activeOpacity?: number;
    cancel?: boolean;
}

const ContextMenu: React.FC<ContextMenuProps> = ({
    children,
    items,
    menuStyle,
    menuItemStyle,
    menuTextStyle,
    dividerStyle,
    cancel,
    onOpen,
    onClose,
    longPressDuration = 500,
    activeOpacity = 0.8,
}) => {
    const { width: screenWidth, height: screenHeight } = Dimensions.get('window');
    const [menuVisible, setMenuVisible] = useState(false);
    const [menuPosition, setMenuPosition] = useState({ x: 0, y: 0 });
    const containerRef = useRef<View>(null);

    const showMenu = (x: number, y: number) => {
        setMenuPosition({ x, y });
        setMenuVisible(true);
        onOpen?.();
    };

    const hideMenu = () => {
        setMenuVisible(false);
        onClose?.();
    };

    const handleItemPress = (onPress: () => void) => {
        onPress();
        hideMenu();
    };

    const gesture = Gesture.LongPress()
        .minDuration(longPressDuration)
        .onStart((e) => {
            const absoluteX = e.absoluteX;
            const absoluteY = e.absoluteY;
            runOnJS(showMenu)(absoluteX, absoluteY);
        });

    useEffect(() => {
        setMenuVisible(!cancel);
    }, [cancel])

    return (
        <>
            <View ref={containerRef} collapsable={false} style={{ flex: 1 }}>
                <GestureDetector gesture={gesture}>
                    <View style={{ flex: 1 }}>
                        {children}
                    </View>
                </GestureDetector>
            </View>

            <Modal
                visible={menuVisible}
                transparent
                animationType="fade"
                onRequestClose={hideMenu}
            >
                <TouchableWithoutFeedback onPress={hideMenu}>
                    <View style={styles.modalOverlay} />
                </TouchableWithoutFeedback>

                <View
                    style={[
                        styles.menu,
                        {
                            position: 'absolute',
                            top: Math.min(
                                menuPosition.y,
                                screenHeight - 300
                            ),
                            left: Math.min(
                                menuPosition.x > screenWidth / 2 ? menuPosition.x - 150 : menuPosition.x,
                                screenWidth - 160
                            ),
                        },
                        menuStyle,
                    ]}
                    onStartShouldSetResponder={() => true}
                >
                    {items.map((item, index) => (
                        <React.Fragment key={item.label}>
                            <TouchableOpacity
                                style={[styles.menuItem, menuItemStyle]}
                                onPress={() => handleItemPress(item.onPress)}
                                activeOpacity={activeOpacity}
                            >
                                {item.svg}
                                <Text style={[styles.menuText, menuTextStyle, item.textStyle]}>
                                    {item.label}
                                </Text>
                            </TouchableOpacity>
                            {index < items.length - 1 && (
                                <View style={[styles.divider, dividerStyle]} />
                            )}
                        </React.Fragment>
                    ))}
                </View>
            </Modal>
        </>
    );
};

const styles = StyleSheet.create({
    modalOverlay: {
        ...StyleSheet.absoluteFillObject,
        backgroundColor: 'rgba(0, 0, 0, 0.1)',
    },
    menu: {
        backgroundColor: 'white',
        borderRadius: 8,
        minWidth: 100,
        shadowColor: '#000',
        shadowOffset: { width: 0, height: 2 },
        shadowOpacity: 0.3,
        shadowRadius: 6,
        elevation: 10,
        zIndex: 1000,
    },
    menuItem: {
        paddingVertical: 12,
        paddingHorizontal: 16,
        minWidth: 100,
        flexDirection: 'row',
        gap: 4,
        alignItems: 'center'
    },
    menuText: {
        fontSize: 16,
        color: '#333',
    },
    divider: {
        height: 1,
        backgroundColor: '#f0f0f0',
        marginHorizontal: 8,
    },
});

export default ContextMenu;