/*
 * Copyright 2019 the original author or authors.
 *
 * 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.gradle.internal.execution.steps

import com.google.common.collect.ImmutableSortedMap
import groovy.transform.CompileStatic
import org.gradle.api.internal.file.TestFiles
import org.gradle.internal.fingerprint.FileCollectionSnapshotter
import org.gradle.internal.snapshot.FileSystemSnapshot
import org.gradle.test.fixtures.file.TestNameTestDirectoryProvider

@CompileStatic
trait SnasphotterFixture {
    abstract TestNameTestDirectoryProvider getTemporaryFolder()

    final FileCollectionSnapshotter snapshotter = TestFiles.fileCollectionSnapshotter()
    ImmutableSortedMap<String, FileSystemSnapshot> snapshotsOf(Map<String, Object> properties) {
        def builder = ImmutableSortedMap.<String, FileSystemSnapshot>naturalOrder()
        properties.each { propertyName, value ->
            def values = (value instanceof Collection) ? (Collection<?>) value : [value]
            def files = values.collect {
                it instanceof File
                    ? it as File
                    : temporaryFolder.file(it)
            }
            def snapshot = snapshotter.snapshot(TestFiles.fixed(files))
            builder.put(propertyName, snapshot)
        }
        return builder.build()
    }

    FileSystemSnapshot snapshot(File... files) {
        snapshotter.snapshot(TestFiles.fixed(files))
    }
}
