package com.ngMAT.appl.bbs.servlets;

import	java.sql.SQLException;
import com.ngMAT.HTML.HTMLComponent;
import	com.ngMAT.HTML.HTMLTemplate;

import	com.ngMAT.appl.GenericRuntimeException;
import com.ngMAT.appl.genericservlet.GenericServlet;
import com.ngMAT.appl.genericservlet.GenericServletContext;

import	com.ngMAT.appl.bbs.data.session.BBSEntrySessionData;
import	com.ngMAT.appl.bbs.data.table.TBbsMessage;
import	com.ngMAT.appl.data.handler.IDAssigner;

/**
 * @author tsuhtan
 *
 * To change this generated comment edit the template variable "typecomment":
 * Window>Preferences>Java>Templates.
 * To enable and disable the creation of type comments go to
 * Window>Preferences>Java>Code Generation.
 */
public class MessageEntryServlet extends GenericServlet
{
	/* いつでもおっけ。
	 * @see com.ngMAT.appl.genericservlet.GenericServlet#isReadyToGo(GenericServletContext)
	 */
	public boolean isReadyToGo(GenericServletContext context)
	{
		return true;
	}

	/* "do_process=true" : エントリ受付、"do_complete=true" : 確定。
	 * @see com.ngMAT.appl.genericservlet.GenericServlet#process(GenericServletContext)
	 */
	public HTMLComponent process(GenericServletContext context)
	{
		HTMLTemplate template = null;
		if (context.getParameter ("do_process") != null)
			template = processEntry (context);
		else if (context.getParameter ("do_complete") != null)
			template = processComplete (context);
		else
			template = processInitialDisplay (context);
		return template;
	}

	private	HTMLTemplate	processInitialDisplay (GenericServletContext context)
	{
		MessageEntryServletConfig config = (MessageEntryServletConfig)context.getConfig();
		HTMLTemplate template = context.getTemplate (config.entry_template_name);
		long ref_message_id = context.getLongParameter ("ref_message_id", 0);
		if (ref_message_id != TBbsMessage.ID_NOT_ASSIGNED)
        {
            TBbsMessage ref_message = TBbsMessage.select (context, ref_message_id);
            if (ref_message != null)
            {
                template.setTagValue ("ref_message_id", ref_message_id);
                String subject = ref_message.subject;
                if (! subject.startsWith (config.RE_STRING)) subject = config.RE_STRING + " " + subject;
                template.setTagValue ("subject", subject);
            }

        }
		return template;
	}

	private	HTMLTemplate	processEntry (GenericServletContext context)
	{
		MessageEntryServletConfig config = (MessageEntryServletConfig)context.getConfig();
		HTMLTemplate template = context.getTemplate (config.entry_template_name);
		if (isValidEntry (context, template))
			template = getConfirmationTemplate (context);
		else
			context.setTagValueWithParameters (template);
		return template;
	}

	private	boolean	isValidEntry (GenericServletContext context, HTMLTemplate template)
	{
		if (isEmpty (context, template, "description", "メッセージ"))
			return false;
		return true;
	}

	private	boolean	isEmpty (GenericServletContext context, HTMLTemplate template, String p_name, String p_display_name)
	{
		String s = context.getParameter (p_name);
		if (s == null || s.trim().length() == 0)
		{
			template.setTagValue ("ERROR_MESSAGE", p_display_name + "が入力されていません。");
			return true;
		}
		return false;
	}

	private	HTMLTemplate	getConfirmationTemplate (GenericServletContext context)
	{
		MessageEntryServletConfig config = (MessageEntryServletConfig)context.getConfig();
		HTMLTemplate template = context.getTemplate (config.confirm_template_name);
		BBSEntrySessionData sd = new BBSEntrySessionData();
		sd.initialize (context);
		sd.bind (context);
		template.setTagValue ("contributer_name", sd.message.contributer_name);
		template.setTagValue ("contributer_email", sd.message.contributer_email);
		template.setTagValue ("subject", sd.message.subject);
		template.setTagValue ("description", sd.message.description);
		template.setTagValue ("sid", sd.id);
		return template;
	}

	private	HTMLTemplate	processComplete (GenericServletContext context)
	{
		MessageEntryServletConfig config = (MessageEntryServletConfig)context.getConfig();

		BBSEntrySessionData sd = BBSEntrySessionData.get (context, context.getParameter ("sid"));
		TBbsMessage data = sd.message;
		IDAssigner assigner = IDAssigner.getInstance (context);
		data.bbs_message_id = assigner.assignID (context, "t_bbs_message", "bbs_message_id");
		data.reg_timestamp = new java.sql.Timestamp (System.currentTimeMillis());
		try {
			context.commit();
		} catch (SQLException e) {
			throw new GenericRuntimeException (e);
		}
		data.insert (context);
		try {
			context.commit();
		} catch (SQLException e) {
			throw new GenericRuntimeException (e);
		}

		HTMLTemplate template = context.getTemplate (config.completed_template_name);
		return template;
	}
}