import React, { useEffect, useState } from 'react';
import { Image, SafeAreaView, ScrollView, StatusBar, StyleSheet, Switch, View, Dimensions } from 'react-native';
import Mapbox, { Callout, Camera, MapView, PointAnnotation } from "@rnmapbox/maps";
import { useSelector } from 'react-redux';
import { useIsFocused } from '@react-navigation/core';

Mapbox.setAccessToken( "pk.eyJ1IjoibWFhcnRlbnZyOTgiLCJhIjoiY2x6ZDFqMGp1MGVyejJrczhqcXpvYm9iYiJ9.XvYcL62dWiJQiFmG6mOoug" );

import { ThemedText } from '@/lib/components/ThemedText';
import { ThemedView } from '@/lib/components/ThemedView';
import { Colors } from '@/lib/constants/Colors';
import { useColorScheme } from '@/lib/hooks/useColorScheme';
import List from '@/lib/components/List';
import { Request } from '@/lib/services/request';

export default function MapScreen() {
    const colorScheme = useColorScheme() ?? 'light';
    const isFocused = useIsFocused();
    const session = useSelector((state: any) => state.data.session);

    const [ types, setTypes ] = useState<any>( [] );
    const [ coordinates, setCoordinates ] = useState<any>( [] );
    const [ markers, setMarkers ] = useState<any>( [] );

    // Load session
    useEffect( () => {
        setCoordinates([session.coordinates.longitude, session.coordinates.latitude]);
    }, [session, isFocused]);

    // Load markers and types
    useEffect( () => {
        Mapbox.setTelemetryEnabled( false );

        Request.get( 'locations' ).then( (response) => {
            const { locations, types } = response;

            // Set types
            const typesList: any[] = [];
            types.forEach( (type: any) => {
                typesList.push( {
                    name: type.name,
                    image: type.image,
                    isEnabled: false,
                    type: type.config_name,
                } );
            } )
            setTypes( typesList );

            // Set markers
            setMarkers( locations );
        } )
    }, [] );

    // Enable/disable type
    const toggleSwitch = (index: any) => {
        const newData = types.map( (item: any, key: any) =>
            key === index ? { ...item, isEnabled: !item.isEnabled } : item
        );

        setTypes( newData );
    };

    // Get all types that are active
    const getActiveTypes = (): Array<String> => {
        const list: any[] = [];

        types.forEach( (type: any) => {
            if (type.isEnabled) {
                list.push( type.type );
            }
        } );

        return list;
    }

    // Get all markers that needs to be visible
    const activeMarkers = () => {
        return markers.filter( (marker: any) => {
            return getActiveTypes().includes( marker.waste_type );
        } );
    }

    return (
        <SafeAreaView style={{ flex: 1, backgroundColor: Colors[ colorScheme ].background }}>
            <ThemedView style={styles.container}>
                <ThemedView>
                    <ThemedView style={styles.titleContainer}>
                        <ThemedText type="title">Afvalcontainers</ThemedText>
                    </ThemedView>

                    <ThemedView style={styles.titleContainer}>
                        <ThemedText type="title" style={{ color: Colors[ colorScheme ].tint }}>in de buurt</ThemedText>
                    </ThemedView>

                    <ThemedView style={styles.mapContainer}>
                        <MapView
                            style={styles.map}
                            logoEnabled={false}
                            scaleBarEnabled={false}
                            attributionEnabled={false}
                        >
                            <Camera
                                centerCoordinate={coordinates.length == 2 ? coordinates : undefined}
                                zoomLevel={13}
                                animationMode={'none'}
                            />
                            {activeMarkers().map( (marker: any, index: any) => (
                                <PointAnnotation
                                    key={marker.id.toString()}
                                    id={marker.id.toString()}
                                    coordinate={marker.coordinate}
                                >
                                    <Callout title={marker.number}>
                                        <ThemedView style={styles.callout}>
                                            <ThemedText>{marker.description + ' - ' + marker.street}</ThemedText>
                                        </ThemedView>
                                    </Callout>
                                </PointAnnotation>
                            ) )}
                        </MapView>
                    </ThemedView>
                </ThemedView>

                <ScrollView style={styles.listContainer}>
                    <List
                        data={types}
                        renderItem={(item: any, index: any) => (
                            <ThemedView style={styles.listItem} key={index}>
                                <View style={styles.listItemTitle}>
                                    <Image source={{ uri: item.image }} style={styles.listImage}/>
                                    <ThemedText type="default">{item.name}</ThemedText>
                                </View>

                                <Switch
                                    trackColor={{ false: '#767577', true: Colors[ colorScheme ].tint }}
                                    thumbColor={'#fff'}
                                    value={item.isEnabled}
                                    onValueChange={() => toggleSwitch( index )}
                                />
                            </ThemedView>
                        )}/>
                </ScrollView>
            </ThemedView>
        </SafeAreaView>
    );
}

const styles = StyleSheet.create( {
    container: {
        marginTop: StatusBar.currentHeight,
        paddingTop: 25,
        flex: 1,
    },
    titleContainer: {
        paddingLeft: 25,
        paddingRight: 25,
        flexDirection: 'row',
        alignItems: 'center',
        gap: 8,
        paddingBottom: 8,
    },
    mapContainer: {
        marginTop: 15,
        height: Dimensions.get( 'window' ).height / 3,
    },
    map: {
        width: Dimensions.get( 'window' ).width,
        height: Dimensions.get( 'window' ).height / 3,
        flex: 1,
    },
    listContainer: {
        flex: 1,
        paddingTop: 20,
        paddingLeft: 25,
        paddingRight: 25,
    },
    listItem: {
        flex: 1,
        display: 'flex',
        justifyContent: 'space-between',
        flexDirection: 'row',
        alignItems: 'center',
        paddingBottom: 20,
        marginBottom: 20,
        borderBottomWidth: 1,
        borderBottomColor: '#f2f2f2',
    },
    listItemTitle: {
        flex: 1,
        flexDirection: 'row',
        alignItems: 'center',
    },
    listImage: {
        width: 30,
        height: 30,
        borderRadius: 5,
        marginRight: 8,
    },
    callout: {
        width: 200,
        padding: 5,
    },
} );