/*
 * Copyright (C) 2005-2007 Alfresco Software Limited.
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

 * As a special exception to the terms and conditions of version 2.0 of 
 * the GPL, you may redistribute this Program in connection with Free/Libre 
 * and Open Source Software ("FLOSS") applications as described in Alfresco's 
 * FLOSS exception.  You should have recieved a copy of the text describing 
 * the FLOSS exception, and it is also available here: 
 * http://www.alfresco.com/legal/licensing"
 */
package org.alfresco.repo.module;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;

import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.service.cmr.module.ModuleDetails;
import org.alfresco.service.cmr.module.ModuleInstallState;
import org.alfresco.util.ISO8601DateFormat;
import org.alfresco.util.VersionNumber;

/**
 * Module details implementation.
 * 
 * Loads details from the serialized properties file provided.
 * 
 * @author Roy Wetherall 
 */
public class ModuleDetailsImpl implements ModuleDetails
{
    private String id;
    private VersionNumber version;
    private String title;
    private String description;
    private VersionNumber repoVersionMin;
    private VersionNumber repoVersionMax;
    private Date installDate;
    private ModuleInstallState installState;
    
    /** 
     * @param properties        the set of properties
     */
    public ModuleDetailsImpl(Properties properties)
    {
        // Check that the required properties are present
        List<String> missingProperties = new ArrayList<String>(1);
        // ID
        id = properties.getProperty(PROP_ID);
        if (id == null) { missingProperties.add(PROP_ID); }
        // VERSION
        if (properties.getProperty(PROP_VERSION) == null)
        {
            missingProperties.add(PROP_VERSION);
        }
        else
        {
            version = new VersionNumber(properties.getProperty(PROP_VERSION));
        }
        // TITLE
        title = properties.getProperty(PROP_TITLE);
        if (title == null) { missingProperties.add(PROP_TITLE); }
        // DESCRIPTION
        description = properties.getProperty(PROP_DESCRIPTION);
        if (description == null) { missingProperties.add(PROP_DESCRIPTION); }
        // REPO MIN
        if (properties.getProperty(PROP_REPO_VERSION_MIN) == null)
        {
            repoVersionMin = new VersionNumber("0.0.0");
        }
        else
        {
            repoVersionMin = new VersionNumber(properties.getProperty(PROP_REPO_VERSION_MIN));
        }
        // REPO MAX
        if (properties.getProperty(PROP_REPO_VERSION_MAX) == null)
        {
            repoVersionMax = new VersionNumber("999.999.999");
        }
        else
        {
            repoVersionMax = new VersionNumber(properties.getProperty(PROP_REPO_VERSION_MAX));
        }
        // INSTALL DATE
        if (properties.getProperty(PROP_INSTALL_DATE) != null)
        {
            String installDateStr = properties.getProperty(PROP_INSTALL_DATE);
            try
            {
                installDate = ISO8601DateFormat.parse(installDateStr);
            }
            catch (Throwable e)
            {
                throw new AlfrescoRuntimeException("Unable to parse install date: " + installDateStr, e);
            }
        }
        // Check
        if (missingProperties.size() > 0)
        {
            throw new AlfrescoRuntimeException("The following module properties need to be defined: " + missingProperties);
        }
        
        // Set other defaults
        installState = ModuleInstallState.INSTALLED;
    }
    
    /**
     * @param id                module id
     * @param versionNumber     version number
     * @param title             title   
     * @param description       description
     */
    public ModuleDetailsImpl(String id, VersionNumber versionNumber, String title, String description)
    {
        this.id = id;
        this.version = versionNumber;
        this.title = title;
        this.description = description;
    }

    public Properties getProperties()
    {
        Properties properties = new Properties();
        // Mandatory properties
        properties.setProperty(PROP_ID, id);
        properties.setProperty(PROP_VERSION, version.toString());
        properties.setProperty(PROP_TITLE, title);
        properties.setProperty(PROP_DESCRIPTION, description);
        // Optional properites
        if (repoVersionMin != null)
        {
            properties.setProperty(PROP_REPO_VERSION_MIN, repoVersionMin.toString());
        }
        if (repoVersionMax != null)
        {
            properties.setProperty(PROP_REPO_VERSION_MAX, repoVersionMax.toString());
        }
        if (installDate != null)
        {
            String installDateStr = ISO8601DateFormat.format(installDate);
            properties.setProperty(PROP_INSTALL_DATE, installDateStr);
        }
        if (installState != null)
        {
            String installStateStr = installState.toString();
            properties.setProperty(PROP_INSTALL_STATE, installStateStr);
        }
        // Done
        return properties;
    }
    
    @Override
    public String toString()
    {
        return "ModuleDetails[" + getProperties() + "]";
    }

    public String getId()
    {
        return id;
    }
    
    public VersionNumber getVersion()
    {
        return version;
    }
    
    public String getTitle()
    {
        return title;
    }
    
    public String getDescription()
    {
        return description;
    }

    public VersionNumber getRepoVersionMin()
    {
        return repoVersionMin;
    }

    public VersionNumber getRepoVersionMax()
    {
        return repoVersionMax;
    }

    public Date getInstallDate()
    {
        return installDate;
    }
    
    public void setInstallDate(Date installDate)
    {
        this.installDate = installDate;
    }
    
    public ModuleInstallState getInstallState()
    {
        return installState;
    }
    
    public void setInstallState(ModuleInstallState installState)
    {
        this.installState = installState;
    }
}