/*
 * Copyright (C) 2014 Square, Inc.
 *
 * 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.hyh.common.picasso;

import android.app.Notification;
import android.app.NotificationManager;
import android.appwidget.AppWidgetManager;
import android.graphics.Bitmap;
import android.widget.RemoteViews;

import static android.content.Context.NOTIFICATION_SERVICE;

abstract class RemoteViewsAction extends Action<RemoteViewsAction.RemoteViewsTarget> {
    final RemoteViews remoteViews;
    final int viewId;
    Callback callback;

    private RemoteViewsTarget target;

    RemoteViewsAction(NativePicasso picasso, Request data, RemoteViews remoteViews, int viewId,
                      int errorResId, int memoryPolicy, int networkPolicy, Object tag, String key,
                      Callback callback) {
        super(picasso, null, data, memoryPolicy, networkPolicy, errorResId, null, key, tag, false);
        this.remoteViews = remoteViews;
        this.viewId = viewId;
        this.callback = callback;
    }

    @Override
    void complete(Bitmap result, NativePicasso.LoadedFrom from) {
        remoteViews.setImageViewBitmap(viewId, result);
        update();
        if (callback != null) {
            callback.onSuccess();
        }
    }

    @Override
    void cancel() {
        super.cancel();
        if (callback != null) {
            callback = null;
        }
    }

    @Override
    public void error(Exception e) {
        if (errorResId != 0) {
            setImageResource(errorResId);
        }
        if (callback != null) {
            callback.onError(e);
        }
    }

    @Override
    RemoteViewsTarget getTarget() {
        if (target == null) {
            target = new RemoteViewsTarget(remoteViews, viewId);
        }
        return target;
    }

    void setImageResource(int resId) {
        remoteViews.setImageViewResource(viewId, resId);
        update();
    }

    abstract void update();

    static class RemoteViewsTarget {
        final RemoteViews remoteViews;
        final int viewId;

        RemoteViewsTarget(RemoteViews remoteViews, int viewId) {
            this.remoteViews = remoteViews;
            this.viewId = viewId;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            RemoteViewsTarget remoteViewsTarget = (RemoteViewsTarget) o;
            return viewId == remoteViewsTarget.viewId && remoteViews.equals(
                    remoteViewsTarget.remoteViews);
        }

        @Override
        public int hashCode() {
            return 31 * remoteViews.hashCode() + viewId;
        }
    }

    static class AppWidgetAction extends RemoteViewsAction {
        private final int[] appWidgetIds;

        AppWidgetAction(NativePicasso picasso, Request data, RemoteViews remoteViews, int viewId,
                        int[] appWidgetIds, int memoryPolicy, int networkPolicy, String key, Object tag,
                        int errorResId, Callback callback) {
            super(picasso, data, remoteViews, viewId, errorResId, memoryPolicy, networkPolicy, tag, key,
                    callback);
            this.appWidgetIds = appWidgetIds;
        }

        @Override
        void update() {
            AppWidgetManager manager = AppWidgetManager.getInstance(picasso.context);
            manager.updateAppWidget(appWidgetIds, remoteViews);
        }
    }

    static class NotificationAction extends RemoteViewsAction {
        private final int notificationId;
        private final String notificationTag;
        private final Notification notification;

        NotificationAction(NativePicasso picasso, Request data, RemoteViews remoteViews, int viewId,
                           int notificationId, Notification notification, String notificationTag, int memoryPolicy,
                           int networkPolicy, String key, Object tag, int errorResId, Callback callback) {
            super(picasso, data, remoteViews, viewId, errorResId, memoryPolicy, networkPolicy, tag, key,
                    callback);
            this.notificationId = notificationId;
            this.notificationTag = notificationTag;
            this.notification = notification;
        }

        @Override
        void update() {
            NotificationManager manager = Utils.getService(picasso.context, NOTIFICATION_SERVICE);
            manager.notify(notificationTag, notificationId, notification);
        }
    }
}
