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/*
 * Copyright (c) 2002-2023 Manorrock.com. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
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 *      contributors may be used to endorse or promote products derived from this
 *      software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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package com.manorrock.oyena.lifecycle.rest;

import jakarta.enterprise.context.ApplicationScoped;
import jakarta.enterprise.inject.Any;
import jakarta.enterprise.inject.Instance;
import jakarta.enterprise.inject.spi.CDI;
import jakarta.faces.FacesException;
import jakarta.faces.context.FacesContext;
import jakarta.inject.Inject;

/**
 * The default REST method executor.
 *
 * @author Manfred Riem ([email protected])
 */
@ApplicationScoped
public class DefaultRestMethodExecutor implements RestMethodExecutor {

    /**
     * Stores the REST parameter producer.
     */
    @Inject
    private RestParameterProducer restParameterProducer;

    /**
     * Execute the method.
     *
     * @param facesContext the Faces context.
     * @param restMappingMatch the REST mapping match.
     */
    @Override
    public Object execute(FacesContext facesContext, RestMappingMatch restMappingMatch) {
        Instance instance = CDI.current().select(
                restMappingMatch.getBean().getBeanClass(), Any.Literal.INSTANCE);
        Object result;
        try {
            Object[] parameters = new Object[restMappingMatch.getMethod().getParameterCount()];
            if (parameters.length > 0) {
                for (int i = 0; i < parameters.length; i++) {
                    parameters[i] = restParameterProducer.produce(
                            facesContext,
                            restMappingMatch,
                            restMappingMatch.getMethod().getParameterTypes()[i],
                            restMappingMatch.getMethod().getParameterAnnotations()[i]);
                }
            }
            result = restMappingMatch.getMethod().invoke(instance.get(), parameters);
        } catch (Throwable throwable) {
            throw new FacesException(throwable);
        }
        return result;
    }
}