TodosApp/Todos/ViewModel/StatusList.swift

//
//  StatusList.swift
//  Todos
//
//  Created by Sam Jaffe on 3/7/26.
//

import Foundation
import SwiftData

@Model // Must be @Model to watch changes to children
final class StatusList {
  var todo: Bool = true
  var complete: Bool = true
  var inProgess: Bool = true
  var hiatus: Bool = true
  var waiting: Bool = true
  var unknown: Bool = true
  
  init() {}
  
  var all: Bool {
    Status.allCases.map({ test($0) }).allSatisfy({ $0 })
  }
  
  var description: String {
    let unset = Status.allCases.filter({ !test($0) })
    return "Hiding status\(unset.count == 1 ? "" : "es"): " +
      unset.map(\.description).joined(separator: ", ")
  }

  func test(_ index: Status) -> Bool {
    switch (index) {
    case .todo: return todo
    case .complete: return complete
    case .inProgress: return inProgess
    case .hiatus: return hiatus
    case .waiting: return waiting
    case .unknown: return unknown
    }
  }
}