import Foundation

struct ConfigurationFile {
    
    let folder: String?
    
    let iterations: Int?
    
    let server: String?
    
    let authentication: String?
}

extension ConfigurationFile: Decodable {
    
}

extension ConfigurationFile {
    
    init(at url: URL) throws {
        guard FileManager.default.fileExists(atPath: url.path) else {
            throw TrainingError.configurationFileMissing(url)
        }
        let data: Data
        do {
            data = try Data(contentsOf: url)
        } catch {
            throw TrainingError.configurationFileUnreadable(url, error)
        }
        do {
            self = try JSONDecoder().decode(ConfigurationFile.self, from: data)
        } catch {
            throw TrainingError.configurationFileDecodingFailed(url, error)
        }
    }
}