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package pagination;

import db.entidades.PlanoActuacao;
import db.entidades.Risco;
import db.entidades.Utilizador;
import db.providers.RiscoLogic;
import global.Global;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import planosactuacao.SessionBean1.PAGINATION_ENUM;


public abstract class Pagination implements Serializable
{
//	private static final String COLOR_TRATADO = "#000000";
	private static final String DEFAULT_COLOR_NAO_TRATADO = "#FF5858";

	private static final Map< Integer, String > COLOR_NAO_TRATADO = new HashMap< Integer, String >();
	static
	{
		COLOR_NAO_TRATADO.put( Global.RESPONSAVEL_SEGURANCA, "#FF5858" );
	}


	private final PAGINATION_ENUM pagination;
	private final PlanoActuacao planoActuacao;
	private final Utilizador user;

    private List< Risco > riscos = new LinkedList< Risco >();
	private List< Pagina > pages = new LinkedList< Pagina >();

    private int currentPageNumber = 1;


    public Pagination( PAGINATION_ENUM pagination, PlanoActuacao p, Utilizador user )
    {
		this.pagination = pagination;
		this.planoActuacao = p;
		this.user = user;
        setup();
    }

	public PAGINATION_ENUM getPagination()
	{
		return pagination;
	}

	public PlanoActuacao getPlanoActuacao()
	{
		return planoActuacao;
	}

	public abstract void setup();

	public void addRisco( Risco r )
	{
		if ( r != null )
		{
			if ( riscos == null )
			{
				riscos = new LinkedList< Risco >();
			}
			riscos.add( r );
		}
	}

	public void addPage( Pagina page )
	{
		if ( page != null )
		{
			if ( pages == null )
			{
				pages = new LinkedList< Pagina >();
			}
			pages.add( page );
		}
	}

	public List< Pagina > getPages( Risco riscoActual )
	{
		pages = new LinkedList< Pagina >();

		if ( getCurrentPageNumber() > 1 )
		{
			Pagina page = new Pagina();
			page.setId( "prev" );
			page.setPrevious( new Boolean( true ) );
			page.setText( "<<" );
			addPage( page );
		}

		Iterator< Risco > it = riscos.iterator();
		int pageNumber = 1;
		while ( it.hasNext() )
		{
			Risco risco = it.next();

			Pagina page = new Pagina();
			page.setId( "valor" + risco.getId() );
			page.setPageNumber( pageNumber );
			page.setText( pageNumber );
			if ( isCurrentPage( page, risco, riscoActual ) )
			{
				setDisabled( page );
			}
			else
			{
				setColor( page, risco );
			}
			addPage( page );

			pageNumber++;
		}

		if ( getCurrentPageNumber() < getTotalPages() )
		{
			Pagina page = new Pagina();
			page.setId( "next" );
			page.setNext( new Boolean( true ) );
			page.setText( ">>" );
			addPage( page );
		}

		return pages;
	}

	private boolean isCurrentPage( Pagina page, Risco risco, Risco riscoActual )
	{
		return ( page.getPageNumber() == getCurrentPageNumber() ) && ( ( riscoActual.getIsPatrimonial() && risco.getIsPatrimonial() && getPagination().equals( PAGINATION_ENUM.PATRIMONIAIS ) )
			|| ( ! riscoActual.getIsPatrimonial() && ! risco.getIsPatrimonial() && getPagination().equals( PAGINATION_ENUM.NORMAL ) ) );
	}

	private void setColor( Pagina page, Risco risco )
	{
		String color = getColor( risco );
		if ( color != null )
		{
			String style = page.getStyle();
			style = (style == null ? "" : style) + "; color: " + color + ";";
			page.setStyle( style );
		}
	}

	private void setDisabled( Pagina page )
	{
		String style = page.getStyle();
		style = ( style == null ? "" : style ) + "background: #FFFFFF; border: 1px solid #000000; padding-left: 5px; padding-right: 5px;";
		page.setStyle( style );
		page.setDisabled( true );
	}

	private String getColor( Risco risco )
	{
		String result = null;

		boolean isRiscoTratado = RiscoLogic.getInstance().isRiscoTratado( risco, null, true );
		if ( ! isRiscoTratado )
		{
			result = COLOR_NAO_TRATADO.get( user.getTipo() );
			if ( result == null )
			{
				result = DEFAULT_COLOR_NAO_TRATADO;
			}
		}

		return result;
	}
    
    public Risco getRisco( Pagina p )
    {
        if ( p.isNext() )
        {
            currentPageNumber++;
        }
        else if ( p.isPrevious() )
        {
            currentPageNumber--;
        }
        else
        {
            currentPageNumber = p.getPageNumber().intValue();
        }

        return riscos.get( currentPageNumber - 1 );
    }
    
    public Risco getNextRisco()
    {
        Risco r = null;
        
        if ( currentPageNumber < getTotalPages() )
        {
           currentPageNumber++;
           r = riscos.get( currentPageNumber - 1 );
        }
        
        return r;
    }

	public int getTotalPages()
	{
		return pages == null ? 0 : pages.size() - 1;
	}

	public int getCurrentPageNumber()
	{
		return currentPageNumber;
	}
}