/*Copyright (C) 2020 Tencent. All rights reserved.

This source code is licensed under the Apache License Version 2.0.*/

package apijson;

import java.util.*;

/**

* Custom JSONList implementation based on ArrayList to replace com.alibaba.fastjson.JSONList

* Maintains same API as fastjson but uses standard Java List implementation

* @author Lemon

*/

public interface JSONList<M extends Map<String, Object>, L extends List<Object>> extends List<Object> {

public static final String TAG = "JSONList";

///**

// * Create an empty JSONList

// */

//default JSONList() {

// super();

//}

//

//private int initialCapacity = 10;

///**

// * Create a JSONList with initial capacity

// * @param initialCapacity the initial capacity

// */

//default JSONList(int initialCapacity) {

// super(initialCapacity);

//}

//

///**

// * Create a JSONList from a Collection

// * @param collection the collection to copy from

// */

//default JSONList(Collection<?> collection) {

// super(collection);

//}

//

///**

// * Create a JSONList from a JSON string

// * @param json JSON string

// */

//default JSONList(String json) {

// this();

// List<Object> list = JSON.parseArray(json);

// if (list != null) {

// addAll(list);

// }

//}

//

/**

* Get a JSONMap at the specified index

* @param index the index

* @return the JSONMap or null if not a JSONMap

*/

default M getJSONObject(int index) {

if (index < 0 || index >= size()) {

return null;

}

Object obj = get(index);

if (obj instanceof Map<?, ?>) {

return JSON.createJSONObject((Map<? extends String, ?>) obj);

}

return null;

}

/**

* Get a JSONList at the specified index

* @param index the index

* @return the JSONList or null if not a JSONList

*/

default L getJSONArray(int index) {

if (index < 0 || index >= size()) {

return null;

}

Object obj = get(index);

if (obj instanceof List<?>) {

return JSON.createJSONArray((List<?>) obj);

}

return null;

}

/**

* Get a boolean value at the specified index

* @param index the index

* @return the boolean value or false if not found

*/

default boolean getBooleanValue(int index) {

if (index < 0 || index >= size()) {

return false;

}

Object obj = get(index);

if (obj instanceof Boolean) {

return (Boolean) obj;

} else if (obj instanceof Number) {

return ((Number) obj).intValue() != 0;

} else if (obj instanceof String) {

return Boolean.parseBoolean((String) obj);

}

return false;

}

/**

* Get an integer value at the specified index

* @param index the index

* @return the integer value or 0 if not found

*/

default int getIntValue(int index) {

if (index < 0 || index >= size()) {

return 0;

}

Object obj = get(index);

if (obj instanceof Number) {

return ((Number) obj).intValue();

} else if (obj instanceof String) {

try {

return Integer.parseInt((String) obj);

} catch (NumberFormatException e) {

// Ignore

}

}

return 0;

}

/**

* Get a long value at the specified index

* @param index the index

* @return the long value or 0 if not found

*/

default long getLongValue(int index) {

if (index < 0 || index >= size()) {

return 0L;

}

Object obj = get(index);

if (obj instanceof Number) {

return ((Number) obj).longValue();

} else if (obj instanceof String) {

try {

return Long.parseLong((String) obj);

} catch (NumberFormatException e) {

// Ignore

}

}

return 0L;

}

/**

* Get a double value at the specified index

* @param index the index

* @return the double value or 0 if not found

*/

default double getDoubleValue(int index) {

if (index < 0 || index >= size()) {

return 0.0;

}

Object obj = get(index);

if (obj instanceof Number) {

return ((Number) obj).doubleValue();

} else if (obj instanceof String) {

try {

return Double.parseDouble((String) obj);

} catch (NumberFormatException e) {

// Ignore

}

}

return 0.0;

}

/**

* Get a string value at the specified index

* @param index the index

* @return the string value or null if not found

*/

default String getString(int index) {

if (index < 0 || index >= size()) {

return null;

}

Object obj = get(index);

return obj != null ? obj.toString() : null;

}

default String toJSONString() {

return JSON.toJSONString(this);

}

//@Override

//default boolean containsAll(Collection<?> c) {

// if (c == null || c.isEmpty()) {

// return true;

// }

// return super.containsAll(c);

//}

//

//@Override

//default boolean addAll(Collection<?> c) {

// if (c == null || c.isEmpty()) {

// return true;

// }

// return super.addAll(c);

//}

//

//@Override

//default boolean addAll(int index, Collection<?> c) {

// if (c == null || c.isEmpty()) {

// return true;

// }

//

// int sz = size();

// if (index < 0 || index >= sz) {

// index += sz;

// }

//

// return super.addAll(index, c);

//}

//

//@Override

//default boolean removeAll(Collection<?> c) {

// if (c == null || c.isEmpty()) {

// return true;

// }

// return super.removeAll(c);

//}

//

//@Override

//default boolean retainAll(Collection<?> c) {

// if (c == null || c.isEmpty()) {

// return true;

// }

// return super.retainAll(c);

//}

//

//

//@Override

//default Object get(int index) {

// int sz = size();

// if (index < 0 || index >= sz) {

// index += sz;

// }

//

// return super.get(index);

//}

//

//@Override

//default Object set(int index, Object element) {

// int sz = size();

// if (index < 0 || index >= sz) {

// index += sz;

// }

//

// return super.set(index, element);

//}

//

//@Override

//default void add(int index, Object element) {

// int sz = size();

// if (index < 0 || index >= sz) {

// index += sz;

// }

//

// super.add(index, element);

//}

//

//@Override

//default Object remove(int index) {

// int sz = size();

// if (index < 0 && index >= -sz) {

// index += sz;

// }

// if (index < 0 || index >= sz) {

// return null;

// }

//

// return super.remove(index);

//}

//

//@Override

//default ListIterator<Object> listIterator(int index) {

// int sz = size();

// if (index < 0 && index >= -sz) {

// index += sz;

// }

//

// return super.listIterator(index);

//}

//

//@Override

//default List<Object> subList(int fromIndex, int toIndex) {

// int sz = size();

// if (fromIndex < 0 && fromIndex >= -sz) {

// fromIndex += sz;

// }

// if (toIndex < 0 && toIndex >= -sz) {

// toIndex += sz;

// }

//

// return super.subList(fromIndex, toIndex);

//}

}