/*
 * Copyright © 2017-2018 AT&T Intellectual Property.
 * Modifications Copyright © 2019 IBM.
 *
 * 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.onap.ccsdk.cds.controllerblueprints.core.utils

import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintException
import org.onap.ccsdk.cds.controllerblueprints.core.isNotEmpty
import org.slf4j.LoggerFactory
import java.io.File
import java.net.URL

/**
 *
 *
 * @author Brinda Santh
 */
object ResourceResolverUtils {
    private val log= LoggerFactory.getLogger(this::class.toString())

    fun getFileContent(filename: String, basePath: String?): String {
        log.trace("file ({}), basePath ({}) ", filename, basePath)
        try {
            var resolvedFileName: String = filename
            if (filename.startsWith("http", true)
                    || filename.startsWith("https", true)) {
                val givenUrl: String = URL(filename).toString()
                val systemUrl: String = File(".").toURI().toURL().toString()
                log.trace("givenUrl ({}), systemUrl ({}) ", givenUrl, systemUrl)
                if (givenUrl.startsWith(systemUrl)) {

                }
            } else {
                if (!filename.startsWith("/")) {
                    if (isNotEmpty(basePath)) {
                        resolvedFileName = basePath.plus(File.separator).plus(filename)
                    } else {
                        resolvedFileName = javaClass.classLoader.getResource(".").path.plus(filename)
                    }
                }
            }
            //FIXME("Convert into reactive")
            return JacksonUtils.getContent(resolvedFileName)
        } catch (e: Exception) {
            throw BluePrintException(e, "failed to file (%s), basePath (%s) ", filename, basePath)
        }
    }
}