import Foundation

public struct TeamCalendar: Decodable, Identifiable {
  public let id: Int64
  public let name: String
  public let hue: Int
  public let writable: Bool
}
struct CalendarSession: Decodable {
  let week_start: Int
  let zone: String
  let calendars: [TeamCalendar]
  let default_calendar_id: Int64
}
public struct CalendarEvent: Codable, Identifiable {
  public var id: Int64 = 0
  public var calendar_id: Int64 = 0
  public var status = "confirmed"
  public var title = ""
  public var location = ""
  public var notes = ""
  public var all_day = false
  public var start_local = ""
  public var end_local = ""
  public var tz = ""
  public var start: Int64 = 0
  public var end: Int64 = 0
  public var recurring = false
  public var writable = true
  public var calendar_name = ""
  public var occurrence = ""
  public var day_start = ""
  public var day_end = ""
  public func occurs(on day: Date, calendar: Calendar) -> Bool {
    if all_day {
      let f = DateFormatter(); f.locale = Locale(identifier: "en_US_POSIX")
      f.timeZone = calendar.timeZone; f.dateFormat = "yyyy-MM-dd"
      let date = f.string(from: day)
      return day_start <= date && day_end > date
    }
    let first = calendar.startOfDay(for: day)
    let last = calendar.date(byAdding: .day, value: 1, to: first)!
    return Double(start) < last.timeIntervalSince1970 && Double(end) > first.timeIntervalSince1970
  }
  public var identity: String { "\(id)-\(occurrence)-\(start)" }
  public init() {}
}
struct CalendarEvents: Decodable { let events: [CalendarEvent] }
struct SavedEvent: Decodable { let id: Int64; let warning: String? }