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Provides asset-pipeline integration with the ratpack framework.

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/*
 * Copyright 2015 the original author or authors.
 *
 * 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 asset.pipeline.ratpack;

import asset.pipeline.ratpack.internal.ProductionAssetCache;
import com.google.inject.Singleton;
import com.google.inject.multibindings.Multibinder;
import ratpack.guice.ConfigurableModule;
import ratpack.handling.HandlerDecorator;
import ratpack.handling.Handlers;

import java.util.Map;

public class AssetPipelineModule extends ConfigurableModule{
    public static class Config {
        private String sourcePath = "../assets";
        private String url = "assets/";
        private String indexFile = "index.html";
        private Map assets;

        public Config sourcePath(String sourcePath) {
          this.sourcePath = sourcePath;
          return this;
        }

        public String getSourcePath() {
          return this.sourcePath;
        }

        public Config url(String url) {
          this.url = url;
          return this;
        }

        public String getUrl() {
          return this.url;
        }

        public Config indexFile(String indexFile) {
          this.indexFile = indexFile;
          return this;
        }

        public String getIndexFile() {
          return this.indexFile;
        }

        public Config assets(Map assets) {
        	this.assets = assets;
        	return this;
        }

        public Map getAssets() {
        	return this.assets;
        }

    }

    @Override
    protected void configure() {
        bind(AssetPipelineService.class).in(Singleton.class);
        bind(AssetPipelineHandler.class).in(Singleton.class);
        bind(ProductionAssetCache.class).in(Singleton.class);

        Multibinder.newSetBinder(binder(), HandlerDecorator.class).addBinding().toInstance((registry, rest) ->
          Handlers.chain(rest, Handlers.chain(registry, (c) -> c.all(AssetPipelineHandler.class)))
        );
    }

}