/*******************************************************************************
 * Copyright (c) 2015-2018 Skymind, Inc.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 which is available 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 ******************************************************************************/

package org.deeplearning4j.ui.api;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.deeplearning4j.ui.components.chart.style.StyleChart;
import org.deeplearning4j.ui.components.component.style.StyleDiv;
import org.deeplearning4j.ui.components.decorator.style.StyleAccordion;
import org.deeplearning4j.ui.components.table.style.StyleTable;
import org.deeplearning4j.ui.components.text.style.StyleText;
import org.nd4j.shade.jackson.annotation.JsonSubTypes;
import org.nd4j.shade.jackson.annotation.JsonTypeInfo;

import java.awt.*;

/**
 * Style defines things such as size of elements, an their margins.
 * Subclasses/concrete implementations have additional settings specific to the type of component
 *
 * @author Alex Black
 */
@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.WRAPPER_OBJECT)
@JsonSubTypes(value = {@JsonSubTypes.Type(value = StyleChart.class, name = "StyleChart"),
                @JsonSubTypes.Type(value = StyleTable.class, name = "StyleTable"),
                @JsonSubTypes.Type(value = StyleText.class, name = "StyleText"),
                @JsonSubTypes.Type(value = StyleAccordion.class, name = "StyleAccordion"),
                @JsonSubTypes.Type(value = StyleDiv.class, name = "StyleDiv")})
@Data
@AllArgsConstructor
@NoArgsConstructor
public abstract class Style {

    private Double width;
    private Double height;
    private LengthUnit widthUnit;
    private LengthUnit heightUnit;

    protected LengthUnit marginUnit;
    protected Double marginTop;
    protected Double marginBottom;
    protected Double marginLeft;
    protected Double marginRight;

    protected String backgroundColor;

    public Style(Builder b) {
        this.width = b.width;
        this.height = b.height;
        this.widthUnit = b.widthUnit;
        this.heightUnit = b.heightUnit;

        this.marginUnit = b.marginUnit;
        this.marginTop = b.marginTop;
        this.marginBottom = b.marginBottom;
        this.marginLeft = b.marginLeft;
        this.marginRight = b.marginRight;

        this.backgroundColor = b.backgroundColor;
    }


    @SuppressWarnings("unchecked")
    public static abstract class Builder<T extends Builder<T>> {
        protected Double width;
        protected Double height;
        protected LengthUnit widthUnit;
        protected LengthUnit heightUnit;

        protected LengthUnit marginUnit;
        protected Double marginTop;
        protected Double marginBottom;
        protected Double marginLeft;
        protected Double marginRight;

        protected String backgroundColor;

        public T width(double width, LengthUnit widthUnit) {
            this.width = width;
            this.widthUnit = widthUnit;
            return (T) this;
        }

        public T height(double height, LengthUnit heightUnit) {
            this.height = height;
            this.heightUnit = heightUnit;
            return (T) this;
        }

        public T margin(LengthUnit unit, Integer marginTop, Integer marginBottom, Integer marginLeft,
                        Integer marginRight) {
            return margin(unit, (marginTop != null ? marginTop.doubleValue() : null),
                            (marginBottom != null ? marginBottom.doubleValue() : null),
                            (marginLeft != null ? marginLeft.doubleValue() : null),
                            (marginRight != null ? marginRight.doubleValue() : null));
        }

        public T margin(LengthUnit unit, Double marginTop, Double marginBottom, Double marginLeft, Double marginRight) {
            this.marginUnit = unit;
            this.marginTop = marginTop;
            this.marginBottom = marginBottom;
            this.marginLeft = marginLeft;
            this.marginRight = marginRight;
            return (T) this;
        }

        public T backgroundColor(Color color) {
            return backgroundColor(Utils.colorToHex(color));
        }

        public T backgroundColor(String color) {
            this.backgroundColor = color;
            return (T) this;
        }
    }
}
