/*
 * Copyright 2020 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kie.kogito.serverless.workflow.utils;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class WorkflowTestUtils {

    public static final Path resourceDirectory = Paths.get("src",
            "test",
            "resources");
    public static final String absolutePath = resourceDirectory.toFile().getAbsolutePath();

    public static Path getResourcePath(String file) {
        return Paths.get(absolutePath + File.separator + file);
    }

    public static InputStream getInputStreamFromPath(Path path) throws Exception {
        return Files.newInputStream(path);
    }

    public static String readWorkflowFile(String location) {
        return readFileAsString(classpathResourceReader(location));
    }

    public static Reader classpathResourceReader(String location) {
        return new InputStreamReader(WorkflowTestUtils.class.getResourceAsStream(location));
    }

    public static String readFileAsString(Reader reader) {
        try {
            StringBuilder fileData = new StringBuilder(1000);
            char[] buf = new char[1024];
            int numRead;
            while ((numRead = reader.read(buf)) != -1) {
                String readData = String.valueOf(buf,
                        0,
                        numRead);
                fileData.append(readData);
                buf = new char[1024];
            }
            reader.close();
            return fileData.toString();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}
