legacy/swift/Sources/PiranhaKit/InputCommand/PiranhaConfigProvider.swift

/**
 *    Copyright (c) 2021 Uber Technologies, Inc.
 *
 *    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 ArgumentParser
import Foundation

protocol PiranhaConfigProviding {
    func config(fromFileURL url: URL) throws -> PiranhaConfig
}

struct PiranhaConfigProviderDefaultImpl: PiranhaConfigProviding {
    
    func config(fromFileURL url: URL) throws -> PiranhaConfig {
        do {
            let properties = try Data(contentsOf: url)
            return try JSONDecoder().decode(PiranhaConfig.self,
                                            from: properties)
        } catch {
            throw ValidationError("Invalid configuration")
        }
    }
}