Sources/SparkConnect/Row.swift

//
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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 struct Row: Sendable, Equatable {
  let values: [Sendable?]

  public init(_ values: Sendable?...) {
    self.values = values
  }

  public init(valueArray: [Sendable?]) {
    self.values = valueArray
  }

  public static var empty: Row {
    return Row()
  }

  public var size: Int { return length }

  public var length: Int { return values.count }

  subscript(index: Int) -> Sendable {
    get throws {
      return try get(index)
    }
  }

  public func get(_ i: Int) throws -> Sendable {
    if i < 0 || i >= self.length {
      throw SparkConnectError.InvalidArgumentException
    }
    return values[i]
  }

  public func getAsBool(_ i: Int) throws -> Bool {
    return try get(i) as! Bool
  }

  public static func == (lhs: Row, rhs: Row) -> Bool {
    if lhs.values.count != rhs.values.count {
      return false
    }
    return lhs.values.elementsEqual(rhs.values) { (x, y) in
      if x == nil && y == nil {
        return true
      } else if let a = x as? Bool, let b = y as? Bool {
        return a == b
      } else if let a = x as? any FixedWidthInteger, let b = y as? any FixedWidthInteger {
        return Int64(a) == Int64(b)
      } else if let a = x as? Float, let b = y as? Float {
        return a == b
      } else if let a = x as? Double, let b = y as? Double {
        return a == b
      } else if let a = x as? String, let b = y as? String {
        return a == b
      } else {
        return false
      }
    }
  }

  public func toString() -> String {
    return "[\(self.values.map { "\($0 ?? "null")" }.joined(separator: ","))]"
  }
}

extension Row {
}