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package net.sourceforge.cruisecontrol.dashboard.utils.functors;

import java.io.FilenameFilter;

import org.joda.time.DateTime;

public final class BuildSummariesFilters {
    private BuildSummariesFilters() {
    }

    private static FilenameFilter cclog = new CCLogFilter();
    private static SuccessLogFilter success = new SuccessLogFilter();

    private static FilenameFilter succeeded = and(cclog, success);

    private static FilenameFilter failed = and(cclog, not(success));

    public static FilenameFilter cclogFilter() {
        return cclog;
    }

    public static FilenameFilter succeedFilter() {
        return succeeded;
    }

    public static ReportableFilter earliestSucceededFilter(DateTime time) {
        return new ReportAdapterFilter(and(succeeded, earliestLog(time)));
    }

    public static ReportableFilter lastSucceedFilter(DateTime time) {
        return new ReportAdapterFilter(and(succeeded, lastLog(time)));
    }

    public static ReportableFilter earliestFailedFilter(DateTime time) {
        return new ReportAdapterFilter(and(failed, earliestLog(time)));
    }

    public static ReportableFilter lastFailedFilter(DateTime time) {
        return new ReportAdapterFilter(and(failed, lastLog(time)));
    }

    public static ReportableFilter lastFilter() {
        return new ReportAdapterFilter(and(cclog, new NearestLogFilter(new DateTime())));
    }

    private static final FilenameFilter and(FilenameFilter first, FilenameFilter second) {
        return new And(new FilenameFilter[] {first, second});
    }

    private static final Not not(FilenameFilter filter) {
        return new Not(filter);
    }

    private static FilenameFilter earliestLog(final DateTime time) {
        return and(not(new OlderLogFilter(time)), new NearestLogFilter(time));
    }

    private static FilenameFilter lastLog(final DateTime time) {
        return and(new OlderLogFilter(time), new NearestLogFilter(time));
    }
}