/*
 * Copyright 2021 Google LLC
 *
 * 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.
 */

import Foundation

public enum JSONParser {
  // Decode an instance from a JSON file.
  public static func readJSON<T: Codable>(of dataStruct: T.Type, from path: String) throws -> T {
    let fileURL = URL(fileURLWithPath: FileManager().currentDirectoryPath)
      .appendingPathComponent(path)
    let data = try Data(contentsOf: fileURL)
    return try JSONDecoder().decode(dataStruct, from: data)
  }

  public static func writeJSON<T: Codable>(of data: T, to path: String) throws {
    let fileURL = URL(fileURLWithPath: FileManager().currentDirectoryPath)
      .appendingPathComponent(path)
    let data = try JSONEncoder().encode(data)
    try data.write(to: fileURL)
  }
}
