/*
 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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 */

package compiler.compilercontrol.share.processors;

import compiler.compilercontrol.share.scenario.CompileCommand;
import jdk.test.lib.Asserts;
import jdk.test.lib.process.OutputAnalyzer;

import java.util.Iterator;
import java.util.List;
import java.util.function.Consumer;

/**
 * Checks that output contains a string with commands and full method pattern
 */
public class CommandProcessor implements Consumer<OutputAnalyzer> {
    private static final String INVALID_COMMAND_MSG = "CompileCommand: "
            + "\\b(unrecognized command|Bad pattern|"
            + "An error occurred during parsing)\\b";
    private final Iterator<CompileCommand> nonQuietedIterator;
    private final Iterator<CompileCommand> quietedIterator;

    public CommandProcessor(List<CompileCommand> nonQuieted,
                            List<CompileCommand> quieted) {
        this.nonQuietedIterator = nonQuieted.iterator();
        this.quietedIterator = quieted.iterator();
    }

    @Override
    public void accept(OutputAnalyzer outputAnalyzer) {
        try {
            outputAnalyzer.asLines().stream()
                    .filter(s -> s.startsWith("CompileCommand:"))
                    .forEachOrdered(this::check);
        } catch (Exception e) {
            System.err.println(outputAnalyzer.getOutput());
            throw e;
        }
    }

    private void check(String input) {
        if (nonQuietedIterator.hasNext()) {
            CompileCommand command = nonQuietedIterator.next();
            if (command.isValid()) {
                Asserts.assertTrue(input.contains(getOutputString(command)),
                        getOutputString(command) + "missing in output");
            } else {
                Asserts.assertTrue(input.matches(INVALID_COMMAND_MSG),
                        "Error message missing for: " + getOutputString(
                                command));
            }
        } else if (quietedIterator.hasNext()) {
            CompileCommand command = quietedIterator.next();
            if (command.isValid()) {
                Asserts.assertFalse(input.contains(getOutputString(command)));
            } else {
                Asserts.assertTrue(input.matches(INVALID_COMMAND_MSG),
                        "Error message missing for: " + getOutputString(
                                command));
            }
        }
    }

    private String getOutputString(CompileCommand command) {
        return "CompileCommand: "
                + command.command.name + " "
                + command.methodDescriptor.getCanonicalString();
    }
}
