import { loadFunctionTypes, isFunctionDefinition, getFunctionTypeResources, interpolated, hasFunctionDefinition } from '@maptalks/function-type';
import { compileStyle, isFeatureFilter, createFilter, getFilterFeature } from '@maptalks/feature-filter';
import { extend } from '../util/common';
import { MapStateCache } from './../../map/MapStateCache';

/**
 * @classdesc
 * Utilities from mapbox or implementations of mapbox specifications. It is static and should not be initiated.
 * @class
 * @category core
 * @name MapboxUtil
 */

// export * from '@maptalks/feature-filter';
export { loadFunctionTypes, isFunctionDefinition, getFunctionTypeResources, interpolated, hasFunctionDefinition }

const arr = [],
    prop = {};
export function loadGeoSymbol(symbol, geo): any {
    return loadFunctionTypes(symbol, () => {
        const map = geo.getMap();
        let bearing = 0, pitch = 0, zoom = 10;
        const hasMap = !!map;
        if (map) {
            const mapId = map.id;
            const cache = MapStateCache[mapId];
            if (cache) {
                bearing = cache.bearing;
                pitch = cache.pitch;
                zoom = cache.zoom;
            } else {
                bearing = map.getBearing();
                pitch = map.getPitch();
                zoom = map.getZoom();
            }
        }
        let changed = false;
        geo._funTypeProperties = geo._funTypeProperties || {};
        //geo update properties,reset
        if (geo.propertiesDirty) {
            geo._funTypeProperties = {};
            geo.propertiesDirty = false;
            changed = true;
        } else {
            //map camera change
            const funTypeProperties = geo._funTypeProperties;
            changed = (funTypeProperties['{bearing}'] !== bearing || funTypeProperties['{pitch}'] !== pitch || funTypeProperties['{zoom}'] !== zoom);
        }
        let mergeProperties = geo._funTypeProperties;
        if (changed) {
            mergeProperties = extend(mergeProperties || {}, geo.getProperties(), setProp(prop, bearing, pitch, zoom));
        }
        return set(arr, hasMap ? zoom : 12, mergeProperties);
    });
}

function set(arr: any, a0: any, a1: any): any {
    arr[0] = a0;
    arr[1] = a1;
    return arr;
}

function setProp(prop: any, b: any, p: any, z: any): any {
    prop['{bearing}'] = b;
    prop['{pitch}'] = p;
    prop['{zoom}'] = z;
    return prop;
}

export {
    compileStyle, isFeatureFilter, createFilter, getFilterFeature
}