package com.temp.shared.utils;

import java.io.PrintStream;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;

/**
 * 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>");
    }
}