/**
 * Copyright 2011-2015 John Ericksen
 *
 * 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.
 */
package org.androidtransfuse.gen.variableBuilder;

import org.androidtransfuse.adapter.ASTAnnotation;
import org.androidtransfuse.adapter.ASTBase;
import org.androidtransfuse.analysis.AnalysisContext;
import org.androidtransfuse.analysis.Analyzer;
import org.androidtransfuse.analysis.InjectionPointFactory;
import org.androidtransfuse.annotations.View;
import org.androidtransfuse.gen.ClassGenerationUtil;
import org.androidtransfuse.model.InjectionNode;
import org.androidtransfuse.model.InjectionSignature;
import org.androidtransfuse.util.AndroidLiterals;
import org.androidtransfuse.validation.Validator;

import javax.inject.Inject;

/**
 * @author John Ericksen
 */
public class ViewInjectionNodeBuilder extends InjectionNodeBuilderSingleAnnotationAdapter {

    private final ClassGenerationUtil generationUtil;
    private final InjectionPointFactory injectionPointFactory;
    private final VariableInjectionBuilderFactory variableInjectionBuilderFactory;
    private final Analyzer analyzer;
    private final Validator validator;

    @Inject
    public ViewInjectionNodeBuilder(ClassGenerationUtil generationUtil,
                                    InjectionPointFactory injectionPointFactory,
                                    VariableInjectionBuilderFactory variableInjectionBuilderFactory,
                                    Analyzer analyzer,
                                    Validator validator) {
        super(View.class);
        this.generationUtil = generationUtil;
        this.injectionPointFactory = injectionPointFactory;
        this.variableInjectionBuilderFactory = variableInjectionBuilderFactory;
        this.analyzer = analyzer;
        this.validator = validator;
    }

    @Override
    public InjectionNode buildInjectionNode(ASTBase target, InjectionSignature signature, AnalysisContext context, ASTAnnotation annotation) {
        Integer viewId = annotation.getProperty("value", Integer.class);
        String viewTag = annotation.getProperty("tag", String.class);

        InjectionNode injectionNode = analyzer.analyze(signature, context);

        if(viewId == null && viewTag == null){
            //validation error
            validator.error("@View must contain ast least a value or tag parameter.")
                    .element(target)
                    .annotation(annotation)
                    .build();
        }
        else {
            InjectionNode activityInjectionNode = injectionPointFactory.buildInjectionNode(AndroidLiterals.ACTIVITY, context);
            injectionNode.addAspect(VariableBuilder.class, variableInjectionBuilderFactory.buildViewVariableBuilder(viewId, viewTag, activityInjectionNode, generationUtil.type(signature.getType())));
        }
        return injectionNode;
    }
}