/*
 * Copyright 2020 Walmart Labs
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.ernhelloworld.ern.api;

import android.support.annotation.NonNull;

import com.walmartlabs.electrode.reactnative.bridge.ElectrodeBridgeEvent;
import com.walmartlabs.electrode.reactnative.bridge.ElectrodeBridgeEventListener;
import com.walmartlabs.electrode.reactnative.bridge.ElectrodeBridgeRequestHandler;
import com.walmartlabs.electrode.reactnative.bridge.ElectrodeBridgeResponseListener;
import com.walmartlabs.electrode.reactnative.bridge.None;
import com.walmartlabs.electrode.reactnative.bridge.RequestHandlerHandle;

import java.util.*;
import java.util.UUID;

import com.ernhelloworld.ern.model.Item;

public final class WalmartItemApi {
    private static final Requests REQUESTS;
    private static final Events EVENTS;

    static {
        REQUESTS = new WalmartItemRequests();
        EVENTS = new WalmartItemEvents();
    }

    private WalmartItemApi() {
    }

    @NonNull
    public static Requests requests() {
        return REQUESTS;
    }

    @NonNull
    public static Events events() {
        return EVENTS;
    }

    public interface Events {
        String EVENT_ITEM_ADDED = "com.ernhelloworld.ern.api.event.itemAdded";

        UUID addItemAddedEventListener(
                @NonNull final ElectrodeBridgeEventListener<String> eventListener);

        ElectrodeBridgeEventListener<ElectrodeBridgeEvent> removeItemAddedEventListener(
                @NonNull final UUID uuid);

        void emitItemAdded(@NonNull String itemId);
    }

    public interface Requests {
        String REQUEST_ADD_ITEM = "com.ernhelloworld.ern.api.request.addItem";
        String REQUEST_FIND_ITEMS = "com.ernhelloworld.ern.api.request.findItems";

        RequestHandlerHandle registerAddItemRequestHandler(
                @NonNull final ElectrodeBridgeRequestHandler<Item, Boolean> handler);

        RequestHandlerHandle registerFindItemsRequestHandler(
                @NonNull final ElectrodeBridgeRequestHandler<Integer, List<Item>> handler);

        void addItem(
                Item item,
                @NonNull final ElectrodeBridgeResponseListener<Boolean> responseListener);

        void findItems(
                Integer limit,
                @NonNull final ElectrodeBridgeResponseListener<List<Item>> responseListener);
    }
}