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/*
 * #%L
 * Toolkit :: Server
 * %%
 * Copyright (C) 2017 - 2024 Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * .
 * #L%
 */
package org.debux.webmotion.server.render;

import com.google.gson.Gson;
import org.debux.webmotion.server.call.Call;
import org.debux.webmotion.server.call.HttpContext;
import org.debux.webmotion.server.mapping.Mapping;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Map;

/**
 * Render use to manage JsonP.
 *
 * @author julien
 */
public class RenderJsonP extends Render {
    protected String callback;
    protected Map model;

    public RenderJsonP(String callback, Map model) {
        this.callback = callback;
        this.model = model;
    }

    public String getCallback() {
        return callback;
    }

    public Map getModel() {
        return model;
    }

    @Override
    public void create(Mapping mapping, Call call) throws IOException {
        HttpContext context = call.getContext();
        HttpServletResponse response = context.getResponse();

        Object object = model;
        if (model != null && model.size() == 1
                && model.keySet().contains(DEFAULT_MODEL_NAME)) {
            object = model.values().toArray()[0];
        }

        response.setContentType("application/javascript");

        Gson gson = new Gson();
        String json = gson.toJson(object);
        PrintWriter out = context.getOut();
        out.print(callback + "(" + json + ");");
    }

}