/**
 * ============LICENSE_START====================================================
 * org.onap.aaf
 * ===========================================================================
 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
 * ===========================================================================
 * 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.
 * ============LICENSE_END====================================================
 *
 */

package org.onap.aaf.auth.gui.pages;

import java.io.IOException;

import org.onap.aaf.auth.env.AuthzTrans;
import org.onap.aaf.auth.gui.AAF_GUI;
import org.onap.aaf.auth.gui.BreadCrumbs;
import org.onap.aaf.auth.gui.NamedCode;
import org.onap.aaf.auth.gui.Page;
import org.onap.aaf.cadi.Symm;
import org.onap.aaf.cadi.client.Future;
import org.onap.aaf.misc.env.APIException;
import org.onap.aaf.misc.env.Env;
import org.onap.aaf.misc.env.TimeTaken;
import org.onap.aaf.misc.xgen.Cache;
import org.onap.aaf.misc.xgen.DynamicCode;
import org.onap.aaf.misc.xgen.Mark;
import org.onap.aaf.misc.xgen.html.HTMLGen;

/**
 * Detail Page for Permissions
 * 
 * @author Jonathan
 *
 */
public class ApiExample extends Page {
	public static final String HREF = "/gui/example/:tc";
	public static final String NAME = "APIExample";

	public ApiExample(final AAF_GUI gui, Page ... breadcrumbs) throws APIException, IOException {
		super(gui.env, NAME, HREF, 2/*backdots*/, new String[] {"API Code Example"},
				new BreadCrumbs(breadcrumbs),
				new Model(NAME)
				);
	}
	
	private static class Model extends NamedCode {
		private static final String WITH_OPTIONAL_PARAMETERS = "\n\n////////////\n  Data with Optional Parameters \n////////////\n\n";

		public Model(String name) {
			super(false,name);
		}

		@Override
		public void code(Cache<HTMLGen> cache, HTMLGen xgen) throws APIException, IOException {
			Mark inner = xgen.divID("inner");
			xgen.divID("example","class=std");
			cache.dynamic(xgen, new DynamicCode<HTMLGen,AAF_GUI,AuthzTrans>() {
				@Override
				public void code(final AAF_GUI gui, final AuthzTrans trans, Cache<HTMLGen> cache, HTMLGen xgen) throws APIException, IOException {
					TimeTaken tt = trans.start("Code Example",Env.REMOTE);
					try {
						final String typecode;
						int prefix = trans.path().lastIndexOf('/')+1;
						String encoded = trans.path().substring(prefix);
						typecode = Symm.base64noSplit.decode(encoded);
						Future<String> fp = gui.client().read("/api/example/" + encoded,
								"application/Void+json"
								);
						Future<String> fs2;
						if(typecode.contains("Request+")) {
							fs2 = gui.client().read("/api/example/" + encoded+"?optional=true",
									"application/Void+json"
									);
						} else {
							fs2=null;
						}
						
						
						if(fp.get(5000)) {
								xgen.incr(HTMLGen.H1).text("Sample Code").end()
								.incr(HTMLGen.H5).text(typecode).end();
								xgen.incr("pre");
								if(typecode.contains("+xml")) {
									xgen.xml(fp.body());
									if(fs2!=null && fs2.get(5000)) {
										xgen.text(WITH_OPTIONAL_PARAMETERS);
										xgen.xml(fs2.body());
									}
								} else {
									xgen.text(fp.body());
									if(fs2!=null && fs2.get(5000)) {
										xgen.text(WITH_OPTIONAL_PARAMETERS);
										xgen.text(fs2.body());
									}
								}
								xgen.end();
						} else {
							xgen.incr(HTMLGen.H3)
								.textCR(2,"Error from AAF Service")
								.end();
							gui.writeError(trans, fp, xgen, 0);
						}

					} catch (APIException e) {
						throw e;
					} catch (IOException e) {
						throw e;
					} catch (Exception e) {
						throw new APIException(e);
					}finally {
						tt.done();
					}
				}
					
			});
			xgen.end(inner);
		}
	}

}