import React from 'react';
import PropTypes from 'prop-types';

import {
    EdgeInsetsPropType,
    Platform,
    Text,
    View,
    Animated,
    requireNativeComponent,
    NativeModules,
    ColorPropType,
    findNodeHandle,
} from 'react-native';
import MapMarker from './MapMarker';
import MapPolyline from './MapPolyline';
import MapPolygon from './MapPolygon';
import MapCircle from './MapCircle';
import MapCallout from './MapCallout';
import MapUrlTile from './MapUrlTile';
import AnimatedRegion from './AnimatedRegion';
import {
    contextTypes as childContextTypes,
    getAirMapName,
    googleMapIsInstalled,
    createNotSupportedComponent,
} from './decorateMapComponent';
import * as ProviderConstants from './ProviderConstants';

const MAP_TYPES = {
    STANDARD: 'standard',
    SATELLITE: 'satellite',
    HYBRID: 'hybrid',
    TERRAIN: 'terrain',
    NONE: 'none',
};

const GOOGLE_MAPS_ONLY_TYPES = [
    MAP_TYPES.TERRAIN,
    MAP_TYPES.NONE,
];

const viewConfig = {
    uiViewClassName: 'AIR<provider>Map',
    validAttributes: {
        region: true,
    },
};

const propTypes = {
    ...View.propTypes,
    /**
     * When provider is "google", we will use GoogleMaps.
     * Any value other than "google" will default to using
     * MapKit in iOS or GoogleMaps in android as the map provider.
     */
    provider: PropTypes.oneOf([
        'google',
        'amap'
    ]),

    /**
     * Used to style and layout the `MapView`.  See `StyleSheet.js` and
     * `ViewStylePropTypes.js` for more info.
     */
    style: View.propTypes.style,

    /**
     * A json object that describes the style of the map. This is transformed to a string
     * and saved in mayStyleString to be sent to android and ios
     * https://developers.google.com/maps/documentation/ios-sdk/styling#use_a_string_resource
     * https://developers.google.com/maps/documentation/android-api/styling
     */
    customMapStyle: PropTypes.array,

    /**
     * A json string that describes the style of the map
     * https://developers.google.com/maps/documentation/ios-sdk/styling#use_a_string_resource
     * https://developers.google.com/maps/documentation/android-api/styling
     */
    customMapStyleString: PropTypes.string,

    /**
     * If `true` the app will ask for the user's location.
     * Default value is `false`.
     *
     * **NOTE**: You need to add NSLocationWhenInUseUsageDescription key in
     * Info.plist to enable geolocation, otherwise it is going
     * to *fail silently*!
     */
    showsUserLocation: PropTypes.bool,

    /**
     * The title of the annotation for current user location. This only works if
     * `showsUserLocation` is true.
     * There is a default value `My Location` set by MapView.
     *
     * @platform ios
     */
    userLocationAnnotationTitle: PropTypes.string,

    /**
     * If `false` hide the button to move map to the current user's location.
     * Default value is `true`.
     *
     * @platform android
     */
    showsMyLocationButton: PropTypes.bool,

    /**
     * If `true` the map will focus on the user's location. This only works if
     * `showsUserLocation` is true and the user has shared their location.
     * Default value is `false`.
     *
     * @platform ios
     */
    followsUserLocation: PropTypes.bool,

    /**
     * If `false` points of interest won't be displayed on the map.
     * Default value is `true`.
     *
     */
    showsPointsOfInterest: PropTypes.bool,

    /**
     * If `false` compass won't be displayed on the map.
     * Default value is `true`.
     *
     * @platform ios
     */
    showsCompass: PropTypes.bool,

    /**
     * If `false` the user won't be able to pinch/zoom the map.
     * Default value is `true`.
     *
     */
    zoomEnabled: PropTypes.bool,

    /**
     * If `false` the user won't be able to pinch/rotate the map.
     * Default value is `true`.
     *
     */
    rotateEnabled: PropTypes.bool,

    /**
     * If `true` the map will be cached to an Image for performance
     * Default value is `false`.
     *
     */
    cacheEnabled: PropTypes.bool,

    /**
     * If `true` the map will be showing a loading indicator
     * Default value is `false`.
     *
     */
    loadingEnabled: PropTypes.bool,

    /**
     * Loading background color while generating map cache image or loading the map
     * Default color is light gray.
     *
     */
    loadingBackgroundColor: ColorPropType,

    /**
     * Loading indicator color while generating map cache image or loading the map
     * Default color is gray color for iOS, theme color for Android.
     *
     */
    loadingIndicatorColor: ColorPropType,

    /**
     * If `false` the user won't be able to change the map region being displayed.
     * Default value is `true`.
     *
     */
    scrollEnabled: PropTypes.bool,

    /**
     * If `false` the user won't be able to adjust the camera’s pitch angle.
     * Default value is `true`.
     *
     */
    pitchEnabled: PropTypes.bool,

    /**
     * If `false` will hide 'Navigate' and 'Open in Maps' buttons on marker press
     * Default value is `true`.
     *
     * @platform android
     */
    toolbarEnabled: PropTypes.bool,

    /**
     * A Boolean indicating whether on marker press the map will move to the pressed marker
     * Default value is `true`
     *
     * @platform android
     */
    moveOnMarkerPress: PropTypes.bool,

    /**
     * A Boolean indicating whether the map shows scale information.
     * Default value is `false`
     *
     */
    showsScale: PropTypes.bool,

    /**
     * A Boolean indicating whether the map displays extruded building information.
     * Default value is `true`.
     */
    showsBuildings: PropTypes.bool,

    /**
     * A Boolean value indicating whether the map displays traffic information.
     * Default value is `false`.
     */
    showsTraffic: PropTypes.bool,

    /**
     * A Boolean indicating whether indoor maps should be enabled.
     * Default value is `false`
     *
     * @platform android
     */
    showsIndoors: PropTypes.bool,

    /**
     * A Boolean indicating whether indoor level picker should be enabled.
     * Default value is `false`
     *
     * @platform android
     */
    showsIndoorLevelPicker: PropTypes.bool,

    /**
     * The map type to be displayed.
     *
     * - standard: standard road map (default)
     * - satellite: satellite view
     * - hybrid: satellite view with roads and points of interest overlayed
     * - terrain: topographic view
     * - none: no base map
     */
    mapType: PropTypes.oneOf(Object.values(MAP_TYPES)),

    /**
     * The region to be displayed by the map.
     *
     * The region is defined by the center coordinates and the span of
     * coordinates to display.
     */
    region: PropTypes.shape({
        /**
         * Coordinates for the center of the map.
         */
        latitude: PropTypes.number.isRequired,
        longitude: PropTypes.number.isRequired,

        /**
         * Difference between the minimun and the maximum latitude/longitude
         * to be displayed.
         */
        latitudeDelta: PropTypes.number.isRequired,
        longitudeDelta: PropTypes.number.isRequired,
    }),

    /**
     * The initial region to be displayed by the map.  Use this prop instead of `region`
     * only if you don't want to control the viewport of the map besides the initial region.
     *
     * Changing this prop after the component has mounted will not result in a region change.
     *
     * This is similar to the `initialValue` prop of a text input.
     */
    initialRegion: PropTypes.shape({
        /**
         * Coordinates for the center of the map.
         */
        latitude: PropTypes.number.isRequired,
        longitude: PropTypes.number.isRequired,

        /**
         * Difference between the minimun and the maximum latitude/longitude
         * to be displayed.
         */
        latitudeDelta: PropTypes.number.isRequired,
        longitudeDelta: PropTypes.number.isRequired,
    }),

    /**
     * A Boolean indicating whether to use liteMode for android
     * Default value is `false`
     *
     * @platform android
     */
    liteMode: PropTypes.bool,

    /**
     * Maximum size of area that can be displayed.
     *
     * @platform ios
     */
    maxDelta: PropTypes.number,

    /**
     * Minimum size of area that can be displayed.
     *
     * @platform ios
     */
    minDelta: PropTypes.number,

    /**
     * Insets for the map's legal label, originally at bottom left of the map.
     * See `EdgeInsetsPropType.js` for more information.
     */
    legalLabelInsets: EdgeInsetsPropType,

    /**
     * Callback that is called continuously when the user is dragging the map.
     */
    onRegionChange: PropTypes.func,

    /**
     * Callback that is called once, when the user is done moving the map.
     */
    onRegionChangeComplete: PropTypes.func,

    /**
     * Callback that is called when user taps on the map.
     */
    onPress: PropTypes.func,

    /**
     * Callback that is called when user makes a "long press" somewhere on the map.
     */
    onLongPress: PropTypes.func,

    /**
     * Callback that is called when user makes a "drag" somewhere on the map
     */
    onPanDrag: PropTypes.func,

    /**
     * Callback that is called when a marker on the map is tapped by the user.
     */
    onMarkerPress: PropTypes.func,

    /**
     * Callback that is called when a marker on the map becomes selected. This will be called when
     * the callout for that marker is about to be shown.
     *
     * @platform ios
     */
    onMarkerSelect: PropTypes.func,

    /**
     * Callback that is called when a marker on the map becomes deselected. This will be called when
     * the callout for that marker is about to be hidden.
     *
     * @platform ios
     */
    onMarkerDeselect: PropTypes.func,

    /**
     * Callback that is called when a callout is tapped by the user.
     */
    onCalloutPress: PropTypes.func,

    /**
     * Callback that is called when the user initiates a drag on a marker (if it is draggable)
     */
    onMarkerDragStart: PropTypes.func,

    /**
     * Callback called continuously as a marker is dragged
     */
    onMarkerDrag: PropTypes.func,

    /**
     * Callback that is called when a drag on a marker finishes. This is usually the point you
     * will want to setState on the marker's coordinate again
     */
    onMarkerDragEnd: PropTypes.func,

};

class MapView extends React.Component {
    constructor(props) {
        super(props);

        this.state = {
            isReady: Platform.OS === 'ios',
        };

        this._onMapReady = this._onMapReady.bind(this);
        this._onChange = this._onChange.bind(this);
        this._onLayout = this._onLayout.bind(this);
    }

    getChildContext() {
        return {provider: this.props.provider};
    }

    componentWillUpdate(nextProps) {
        const a = this.__lastRegion;
        const b = nextProps.region;
        if (!a || !b) return;
        if (
            a.latitude !== b.latitude ||
            a.longitude !== b.longitude ||
            a.latitudeDelta !== b.latitudeDelta ||
            a.longitudeDelta !== b.longitudeDelta
        ) {
            this.map.setNativeProps({region: b});
        }
    }

    componentDidMount() {
        const {isReady} = this.state;
        if (isReady) {
            this._updateStyle();
        }
    }

    _updateStyle() {
        const {customMapStyle} = this.props;
        this.map.setNativeProps({customMapStyleString: JSON.stringify(customMapStyle)});
    }

    _onMapReady() {

        const {region, initialRegion} = this.props;
        if (region) {
            this.map.setNativeProps({region});
        } else if (initialRegion) {
            this.map.setNativeProps({region: initialRegion});
        }

        this._updateStyle();

        this.setState({isReady: true});
    }

    _onLayout(e) {
        const {layout} = e.nativeEvent;
        if (!layout.width || !layout.height) return;
        if (this.state.isReady && !this.__layoutCalled) {
            const region = this.props.region || this.props.initialRegion;
            if (region) {
                this.__layoutCalled = true;
                this.map.setNativeProps({region});
            }
        }
        if (this.props.onLayout) {
            this.props.onLayout(e);
        }
    }

    _onChange(event) {
        this.__lastRegion = event.nativeEvent.region;
        if (event.nativeEvent.continuous) {
            if (this.props.onRegionChange) {
                this.props.onRegionChange(event.nativeEvent.region);
            }
        } else if (this.props.onRegionChangeComplete) {
            this.props.onRegionChangeComplete(event.nativeEvent.region);
        }
    }

    animateToRegion(region, duration) {
        this._runCommand('animateToRegion', [region, duration || 500]);
    }

    animateToCoordinate(latLng, duration) {
        this._runCommand('animateToCoordinate', [latLng, duration || 500]);
    }

    fitToElements(animated) {
        this._runCommand('fitToElements', [animated]);
    }

    fitToSuppliedMarkers(markers, animated) {
        this._runCommand('fitToSuppliedMarkers', [markers, animated]);
    }

    fitToCoordinates(coordinates = [], options) {
        const {
            edgePadding = {top: 0, right: 0, bottom: 0, left: 0},
            animated = true,
        } = options;

        this._runCommand('fitToCoordinates', [coordinates, edgePadding, animated]);
    }

    /**
     * Takes a snapshot of the map and saves it to a picture
     * file or returns the image as a base64 encoded string.
     *
     * @param config Configuration options
     * @param [config.width] Width of the rendered map-view (when omitted actual view width is used).
     * @param [config.height] Height of the rendered map-view (when omitted actual height is used).
     * @param [config.region] Region to render (Only supported on iOS).
     * @param [config.format] Encoding format ('png', 'jpg') (default: 'png').
     * @param [config.quality] Compression quality (only used for jpg) (default: 1.0).
     * @param [config.result] Result format ('file', 'base64') (default: 'file').
     *
     * @return Promise Promise with either the file-uri or base64 encoded string
     */
    takeSnapshot(args) {
        // For the time being we support the legacy API on iOS.
        // This will be removed in a future release and only the
        // new Promise style API shall be supported.
        if (Platform.OS === 'ios' && (arguments.length === 4)) {
            console.warn('Old takeSnapshot API has been deprecated; will be removed in the near future'); //eslint-disable-line
            const width = arguments[0]; // eslint-disable-line
            const height = arguments[1]; // eslint-disable-line
            const region = arguments[2]; // eslint-disable-line
            const callback = arguments[3]; // eslint-disable-line
            this._runCommand('takeSnapshot', [
                width || 0,
                height || 0,
                region || {},
                'png',
                1,
                'legacy',
                callback,
            ]);
            return undefined;
        }

        // Sanitize inputs
        const config = {
            width: args.width || 0,
            height: args.height || 0,
            region: args.region || {},
            format: args.format || 'png',
            quality: args.quality || 1.0,
            result: args.result || 'file',
        };
        if ((config.format !== 'png') &&
            (config.format !== 'jpg')) throw new Error('Invalid format specified');
        if ((config.result !== 'file') &&
            (config.result !== 'base64')) throw new Error('Invalid result specified');

        // Call native function
        if (Platform.OS === 'android') {
            return NativeModules.AirMapModule.takeSnapshot(this._getHandle(), config);
        } else if (Platform.OS === 'ios') {
            return new Promise((resolve, reject) => {
                this._runCommand('takeSnapshot', [
                    config.width,
                    config.height,
                    config.region,
                    config.format,
                    config.quality,
                    config.result,
                    (err, snapshot) => {
                        if (err) {
                            reject(err);
                        } else {
                            resolve(snapshot);
                        }
                    },
                ]);
            });
        }
        return Promise.reject('takeSnapshot not supported on this platform');
    }

    _uiManagerCommand(name) {
        return NativeModules.UIManager[getAirMapName(this.props.provider)].Commands[name];
    }

    _mapManagerCommand(name) {
        return NativeModules[`${getAirMapName(this.props.provider)}Manager`][name];
    }

    _getHandle() {
        return findNodeHandle(this.map);
    }

    _runCommand(name, args) {
        switch (Platform.OS) {
            case 'android':
                NativeModules.UIManager.dispatchViewManagerCommand(
                    this._getHandle(),
                    this._uiManagerCommand(name),
                    args
                );
                break;

            case 'ios':
                this._mapManagerCommand(name)(this._getHandle(), ...args);
                break;

            default:
                break;
        }
    }
    render2(){
        return <View>{this.props.children}</View>
    }
    render() {
        let props;

        if (this.state.isReady) {
            props = {
                ...this.props,
                region: null,
                initialRegion: null,
                onChange: this._onChange,
                onMapReady: this._onMapReady,
                onLayout: this._onLayout,
            };
            if (Platform.OS === 'ios' && props.provider === ProviderConstants.PROVIDER_DEFAULT
                && GOOGLE_MAPS_ONLY_TYPES.includes(props.mapType)) {
                props.mapType = MAP_TYPES.standard;
            }
            props.handlePanDrag = !!props.onPanDrag;
        } else {
            props = {
                style: this.props.style,
                region: null,
                initialRegion: null,
                onChange: this._onChange,
                onMapReady: this._onMapReady,
                onLayout: this._onLayout,
            };
        }

        if (Platform.OS === 'android' && this.props.liteMode) {
            return (
                <AIRMapLite
                    ref={ref => { this.map = ref; }}
                    {...props}
                />
            );
        }

        const AIRMap = getAirMapComponent(this.props.provider);
        console.log(this.props.provider,AIRMap);
        // return (
        //     <View style={this.props.style}>
        //         <AIRMap
        //         ref={ref => { this.map = ref; }}
        //         {...props} style={{height:10,width:10}}/>
        //         {this.props.children}
        //     </View>
        // );
        return (
            <AIRMap
            ref={ref => { this.map = ref; }}
            {...props}/>
        );
    }
}

MapView.propTypes = propTypes;
MapView.viewConfig = viewConfig;
MapView.childContextTypes = childContextTypes;

MapView.MAP_TYPES = MAP_TYPES;

const nativeComponent = Component => requireNativeComponent(Component, MapView, {
    nativeOnly: {
        onChange: true,
        onMapReady: true,
        handlePanDrag: true,
    }
});
const airMaps = {
    default: nativeComponent('AIRMap'),
    amap: nativeComponent('RCTAMap')

};
// if (Platform.OS === 'android') {
//   airMaps.google = airMaps.default;
// } else {
//   airMaps.google = googleMapIsInstalled ? nativeComponent('AIRGoogleMap') :
//     createNotSupportedComponent('react-native-maps: AirGoogleMaps dir must be added to your xCode project to support GoogleMaps on iOS.'); // eslint-disable-line max-len
// }
const getAirMapComponent = provider => {
    if(Platform.OS === 'ios'){
        provider = 'default';
    }
    return airMaps[provider || 'default']
};

// const AIRMapLite = NativeModules.UIManager.AIRMapLite &&
//     requireNativeComponent('AIRMapLite', MapView, {
//         nativeOnly: {
//             onChange: true,
//             onMapReady: true,
//             handlePanDrag: true
//         },
//     });

MapView.Marker = MapMarker;
MapView.Polyline = MapPolyline;
MapView.Polygon = MapPolygon;
MapView.Circle = MapCircle;
MapView.UrlTile = MapUrlTile;
MapView.Callout = MapCallout;
Object.assign(MapView, ProviderConstants);
MapView.ProviderPropType = PropTypes.oneOf(Object.values(ProviderConstants));
//
MapView.Animated = Animated.createAnimatedComponent(MapView);
MapView.AnimatedRegion = AnimatedRegion;

export default MapView;
