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/*
 *    Copyright 2016-2024 the original author or 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 org.mybatis.dynamic.sql.where.render;

import static org.mybatis.dynamic.sql.util.StringUtilities.spaceBefore;

import java.util.Objects;

import org.mybatis.dynamic.sql.BindableColumn;
import org.mybatis.dynamic.sql.VisitableCondition;
import org.mybatis.dynamic.sql.render.RenderingContext;
import org.mybatis.dynamic.sql.util.FragmentAndParameters;

public class ColumnAndConditionRenderer {
    private final BindableColumn column;
    private final VisitableCondition condition;
    private final RenderingContext renderingContext;

    private ColumnAndConditionRenderer(Builder builder) {
        column = Objects.requireNonNull(builder.column);
        condition = Objects.requireNonNull(builder.condition);
        renderingContext = Objects.requireNonNull(builder.renderingContext);
    }

    public FragmentAndParameters render() {
        FragmentAndParameters renderedLeftColumn = column.render(renderingContext);

        DefaultConditionVisitor visitor = DefaultConditionVisitor.withColumn(column)
                .withRenderingContext(renderingContext)
                .build();

        FragmentAndParameters renderedCondition = condition.accept(visitor);

        String finalFragment = condition.overrideRenderedLeftColumn(renderedLeftColumn.fragment())
                + spaceBefore(renderedCondition.fragment());

        return FragmentAndParameters.withFragment(finalFragment)
                .withParameters(renderedLeftColumn.parameters())
                .withParameters(renderedCondition.parameters())
                .build();
    }

    public static class Builder {
        private BindableColumn column;
        private VisitableCondition condition;
        private RenderingContext renderingContext;

        public Builder withColumn(BindableColumn column) {
            this.column = column;
            return this;
        }

        public Builder withCondition(VisitableCondition condition) {
            this.condition = condition;
            return this;
        }

        public Builder withRenderingContext(RenderingContext renderingContext) {
            this.renderingContext = renderingContext;
            return this;
        }

        public ColumnAndConditionRenderer build() {
            return new ColumnAndConditionRenderer<>(this);
        }
    }
}