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/*
 * Copyright 2017-2021 original 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
 *
 * https://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 io.micronaut.json.tree;

import io.micronaut.core.annotation.Internal;
import io.micronaut.core.annotation.NonNull;

import java.util.List;
import java.util.Map;

/**
 * Public to allow special handling for conversion service. Use {@link JsonNode#isArray()} to distinguish nodes.
 *
 * @author Jonas Konrad
 * @since 3.1
 */
@Internal
public class JsonArray extends JsonContainer {
    private final List values;

    JsonArray(List values) {
        this.values = values;
    }

    @Override
    public Object getValue() {
        return values.stream().map(JsonNode::getValue).toList();
    }

    @Override
    public int size() {
        return values.size();
    }

    @Override
    public boolean isArray() {
        return true;
    }

    @Override
    public JsonNode get(@NonNull String fieldName) {
        return null;
    }

    @Override
    public JsonNode get(int index) {
        if (index < 0 || index >= size()) {
            return null;
        } else {
            return values.get(index);
        }
    }

    @Override
    @NonNull
    public Iterable values() {
        return values;
    }

    @Override
    @NonNull
    public Iterable> entries() {
        throw new IllegalStateException("Not an object");
    }

    @Override
    public boolean equals(Object o) {
        return o instanceof JsonArray ja && ja.values.equals(values);
    }

    @Override
    public int hashCode() {
        return values.hashCode();
    }
}