/*-
 * ============LICENSE_START=======================================================
 * org.openecomp.aai
 * ================================================================================
 * Copyright (C) 2017 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.openecomp.aai.introspection;

import java.io.UnsupportedEncodingException;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;

import org.json.simple.JSONObject;

import org.openecomp.aai.schema.enums.ObjectMetadata;
import org.openecomp.aai.schema.enums.PropertyMetadata;

public class JSONStrategy extends Introspector {

	private JSONObject json = null;
	private String namedType = "";
	protected JSONStrategy(Object o) {
		super(o);
		json = (JSONObject)o;
		//Assumes you provide a wrapper
		Set<String> keySet = json.keySet();
		if (keySet.size() == 1) {
			namedType = keySet.iterator().next();
			json = (JSONObject)json.get(namedType);
		} else {
			throw new IllegalArgumentException("This object has no named type.");
		}
	}
	
	protected JSONStrategy(Object o, String namedType) {
		super(o);
		json = (JSONObject)o;
		this.namedType = namedType;
		
	}
	
	@Override
	public boolean hasProperty(String name) {
		//TODO 
		return true;
	}
	@Override
	public Object getValue(String name) {
		Object result = "";
		result = json.get(name);
		
		return result;
	}

	@Override
	public void setValue(String name, Object obj) {
		json.put(name, obj);
		
	}
	@Override
	public Object getUnderlyingObject() {
		return this.json;
	}
	
	@Override
	public Set<String> getProperties() {
		Set<String> result = json.keySet();
		return result;
	}
	
	@Override
	public Set<String> getRequiredProperties() {
		//unknowable
		
		return this.getProperties();
	}

	@Override
	public Set<String> getKeys() {
		//unknowable
		return this.getProperties();
	}

	@Override
	public Set<String> getAllKeys() {
		//unknowable
		return this.getProperties();
	}

	@Override
	public String getType(String name) {
		String result = "";
		Class<?> resultClass = this.getClass(name);
		if (resultClass != null) {
			result = resultClass.getName();
		}
		
		if (result.equals("org.json.simple.JSONArray")) {
			result = "java.util.List";
		}
		
		return result;
	}

	@Override
	public String getGenericType(String name) {
		String result = "";
		Class<?> resultClass = this.getGenericTypeClass(name);
		if (resultClass != null) {
			result = resultClass.getName();
		}
		return result;
	}

	@Override
	public String getJavaClassName() {
		return json.getClass().getName();
	}

	@Override
	public Class<?> getClass(String name) {
		Class<?> result = null;
		result = json.get(name).getClass();
		
		return result;
	}

	@Override
	public Class<?> getGenericTypeClass(String name) {
		Object resultObject = null;
		Class<?> resultClass = null;
		resultObject = this.getValue(name);
		if (resultObject.getClass().getName().equals("org.json.simple.JSONArray")) {
			resultClass = ((List)resultObject).get(0).getClass();
		}
		
		return resultClass;
	}

	@Override
	public Object newInstanceOfProperty(String name) {
		try {
			return this.getClass(name).newInstance();
		} catch (InstantiationException | IllegalAccessException e) {
			return null;
		}
	}

	@Override
	public Object newInstanceOfNestedProperty(String name) {
		try {
			return this.getGenericTypeClass(name).newInstance();
		} catch (InstantiationException | IllegalAccessException e) {
			return null;
		}
	}
	
	@Override
	public boolean isComplexType(String name) {
		String result = this.getType(name);
		
		if (result.contains("JSONObject")) {
			return true;
		} else {
			return false;
		}
		
	}
	
	@Override
	public boolean isComplexGenericType(String name) {
		String result = this.getGenericType(name);
		
		if (result.contains("JSONObject")) {
			return true;
		} else {
			return false;
		}
		
	}
	
	@Override
	public boolean isListType(String name) {
		String result = this.getType(name);
		
		if (result.contains("java.util.List")) {
			return true;
		} else {
			return false;
		}
		
	}
	
	@Override
	public boolean isContainer() {
		Set<String> props = this.getProperties();
		boolean result = false;
		if (props.size() == 1 && this.isListType(props.iterator().next())) {
			result = true;
		}
		
		return result;
	}
	@Override
	protected String findKey() {
		return "";
	}
	
	@Override
	public String getName() {
		return this.namedType;
	}
	
	@Override
	public String getDbName() {
		return this.getName();
	}
	
	@Override
	public String getURI() {
		
		// use a UUID for now 
		return UUID.randomUUID().toString();
	}
	
	@Override
	public String getGenericURI() {
		
		//there is none defined for this
		return "";
	}
	
	@Override
	public String preProcessKey (String key) {
		
		// don't do anything with it
		return key;
		
	}
	
	@Override
	public String marshal(MarshallerProperties properties) {
		//TODO
		return null;
	}
	
	@Override
	public Object clone() {
		//TODO
		return null;
	}
	
	/*@Override
	public String findEdgeName(String parent, String child) {
		
		// Always has for now
		return "has";
		
	}*/
	
	@Override
	public ModelType getModelType() {
		return ModelType.JSON;
	}

	@Override
	public Set<String> getIndexedProperties() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public String getChildName() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public boolean hasChild(Introspector child) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean isSimpleType(String name) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public boolean isSimpleGenericType(String name) {
		// TODO Auto-generated method stub
		return false;
	}

	@Override
	public Map<PropertyMetadata, String> getPropertyMetadata(String prop) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public String getMetadata(ObjectMetadata metadataName) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public String getChildDBName() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public String getFullGenericURI() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	protected Object get(String name) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	protected void set(String name, Object value) {
		// TODO Auto-generated method stub
		
	}

	@Override
	public String getObjectId() throws UnsupportedEncodingException {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public Version getVersion() {
		// TODO Auto-generated method stub
		return null;
	}

}