//
// The MIT License (MIT)
//
// Copyright (c) 2023 Ihar Katkavets

// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

import Foundation

public final class FileOutputStream: OutputStream {
    private let fileHandle: FileHandle

    public init(with fileHandle: FileHandle) {
        self.fileHandle = fileHandle
    }
    
    public init?(with localFileURL: URL) {
        guard
            FileManager.default.createFile(atPath: localFileURL.path, contents: nil),
            let fileHandle = try? FileHandle(forWritingTo: localFileURL) else {
            return nil
        }
        self.fileHandle = fileHandle
    }
    
    public var hasSpaceAvailable: Bool {
        return true
    }

    public func open() throws { }
    
    public func write(_ buffer: UnsafePointer<UInt8>, length: Int) throws {
        let data = Data(bytes: buffer, count: length)
        fileHandle.write(data)
    }

    public func close() throws {
    }
}