package com.temp.common.shared.utils;

import java.io.*;
import java.util.*;

/**
 * Collect all the Issues/Throwables for all the "Context(s)" from a particular
 * "Source"
 *
 * @author georgs
 */
public class SourceIssues {
    private final String source;
    private final Map<String, ContextThrowables> contextThrowablesByContext = new HashMap<String, ContextThrowables>();

    public SourceIssues( String source, String context, Throwable... throwables ) {
        this.source = Assert.noEmpty( "source", source );
        add( context, throwables );
    }

    public void add( String context, Throwable... throwables ) {
        context = StringUtils.deNull( context ).trim();
        ContextThrowables contextThrowables = contextThrowablesByContext.get( context );
        if ( contextThrowables != null ) {
            contextThrowables.add( throwables );
        } else {
            contextThrowables = new ContextThrowables( context, throwables ); // Validates that there is at least one Throwable!
            contextThrowablesByContext.put( context, contextThrowables );
        }
    }

    public String getSource() {
        return source;
    }

    public boolean hasThrowables() {
        return !contextThrowablesByContext.isEmpty();
    }

    public ContextThrowables[] getContextThrowables() {
        ContextThrowables[] throwables = contextThrowablesByContext.values().toArray( new ContextThrowables[contextThrowablesByContext.size()] );
        Arrays.sort( throwables );
        return throwables;
    }

    @Override
    public String toString() {
        return appendTo( new StringBuilder() ).toString();
    }

    public StringBuilder appendTo( StringBuilder sb ) {
        sb.append( "Issues from Source '" ).append( source ).append( "':\n" );
        for ( ContextThrowables contextThrowables : getContextThrowables() ) {
            contextThrowables.appendTo( sb, 1 );
        }
        return sb;
    }

    /**
     * @param stream - note in GWT only println Object & String are implemented
     */
    public void dumpToAsHTML( PrintStream stream, boolean fullStackTrace ) {
        stream.println( "<pre>" );
        stream.println( "Issues from Source '" + source + "':" );
        for ( ContextThrowables contextThrowables : getContextThrowables() ) {
            stream.println( "<ul>" );
            contextThrowables.dumpToAsHTML( stream, fullStackTrace );
            stream.println( "</ul>" );
        }
        stream.println( "</pre>" );
    }
}