import React, { useEffect, useRef, 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';
import { useTranslation } from 'react-i18next';

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

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

export default function MapScreen() {
    const colorScheme = useColorScheme() ?? 'light';
    const isFocused = useIsFocused();
    const session = useSelector( (state: any) => state.data.session );
    const { t } = useTranslation();
    const mapRef = useRef<MapView>( null );

    const [ types, setTypes ] = useState<any>( [] );
    const [ typesSet, setTypesSet ] = useState( false );
    const [ coordinates, setCoordinates ] = useState<any>( [] );
    const [ markers, setMarkers ] = useState<any>( [] );
    const [ activeCalloutId, setActiveCalloutId ] = useState( null );

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

    // Setup mapbox
    useEffect( () => {
        Mapbox.setTelemetryEnabled( false );
    }, [] );

    // Load markers and types
    const loadMarkers = () => {
        handleCloseAllCallouts();

        mapRef.current?.getVisibleBounds().then( (bounds) => {
            Request
                .post( 'locations', {
                    topLeft: bounds[ 0 ],
                    bottomRight: bounds[ 1 ],
                } )
                .then( (response) => {
                    const { locations, types } = response;

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

                    // Set markers
                    setMarkers( locations );
                } )
        } );
    }

    // Enable/disable type
    const toggleSwitch = (index: any) => {
        handleCloseAllCallouts();

        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 );
        } );
    }

    const handleCalloutPress = (id: any) => {
        console.log('set active', id);
        setActiveCalloutId( id );
    };

    const handleCloseAllCallouts = () => {
        setActiveCalloutId( null );
    };

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

                    <ThemedView style={styles.titleContainer}>
                        <ThemedText type="title" style={{ color: Colors[ colorScheme ].tint }}>{t( "nearby" )}</ThemedText>
                    </ThemedView>

                    <ThemedView style={styles.mapContainer}>
                        <MapView
                            ref={mapRef}
                            style={styles.map}
                            logoEnabled={false}
                            scaleBarEnabled={false}
                            attributionEnabled={false}
                            onMapIdle={loadMarkers}
                        >
                            <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}
                                    onSelected={() => handleCalloutPress( marker.id )}
                                >
                                    <>
                                        <View style={{ width: 50, height: 50 }}>
                                            <Image
                                                source={{ uri: marker.marker_image }}
                                                style={{ width: 50, height: 50 }}
                                                resizeMode="contain"
                                            />
                                        </View>

                                        {/*{activeCalloutId === marker.id && (*/}
                                        {/*    <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,
    },
} );