Masks Swift

// MARK: - String mask
class Mask {
  
  class func maskCep(CepString: String?) -> String {
    guard let CepString = CepString else {
      return ""
    }
    
    var text = CepString.replacingOccurrences(of: "-", with: "")
    
    if (text.characters.count) > 5 {
      text.insert("-", at: (text.characters.index((text.startIndex), offsetBy: 5)))
    }
    
    return text
  }
  
  class func maskCpf(CPFString: String?) -> String {
    guard let CPFString = CPFString else {
      return ""
    }
    
    var text = CPFString.replacingOccurrences(of: ".", with: "").replacingOccurrences(of: "-", with: "").replacingOccurrences(of: "/", with: "")
    
    if text.characters.count == 14 {
      text = String(text.characters.dropFirst(3))
    }
    
    if (text.characters.count) > 3 {
      text.insert(".", at: (text.characters.index((text.startIndex), offsetBy: 3)))
    }
    if (text.characters.count) > 7 {
      text.insert(".", at: (text.characters.index((text.startIndex), offsetBy: 7)))
    }
    if (text.characters.count) > 11 {
      text.insert("-", at: (text.characters.index((text.startIndex), offsetBy: 11)))
    }
    
    return text
  }
  
  class func maskCnpj(CnpjString: String?) -> String {
    guard let CnpjString = CnpjString else {
      return ""
    }
    
    var text = CnpjString.replacingOccurrences(of: ".", with: "").replacingOccurrences(of: "-", with: "").replacingOccurrences(of: "/", with: "")
    
    if text.characters.count > 2 {
      text.insert(".", at: text.characters.index(text.startIndex, offsetBy: 2))
    }
    if text.characters.count > 6 {
      text.insert(".", at: text.characters.index(text.startIndex, offsetBy: 6))
    }
    if text.characters.count > 10 {
      text.insert("/", at: text.characters.index(text.startIndex, offsetBy: 10))
    }
    if text.characters.count > 15 {
      text.insert("-", at: text.characters.index(text.startIndex, offsetBy: 15))
    }
    return text
  }
  
  class func maskFone(phone: String?) -> String {
    guard let phone = phone else {
      return ""
    }
    
    var text = phone.replacingOccurrences(of: "(", with: "").replacingOccurrences(of: ")", with: "").replacingOccurrences(of: "-", with: "")
    
    if text.characters.count > 1 {
      text.insert("(", at: text.characters.index(text.startIndex, offsetBy: 0))
    }
    if text.characters.count > 3 {
      text.insert(")", at: text.characters.index(text.startIndex, offsetBy: 3))
    }
    if text.characters.count > 8 {
      text.insert("-", at: text.characters.index(text.startIndex, offsetBy: 8))
    }
    return text
  }
  
  class func maskMobile(phone: String?) -> String {
    guard let phone = phone else {
      return ""
    }
    
    var text = phone.replacingOccurrences(of: "(", with: "").replacingOccurrences(of: ")", with: "").replacingOccurrences(of: "-", with: "")
    
    if text.characters.count > 1 {
      text.insert("(", at: text.characters.index(text.startIndex, offsetBy: 0))
    }
    if text.characters.count > 3 {
      text.insert(")", at: text.characters.index(text.startIndex, offsetBy: 3))
    }
    if text.characters.count > 9 {
      text.insert("-", at: text.characters.index(text.startIndex, offsetBy: 9))
    }
    return text
  }

  class func maskParticipation(participation: String?) -> String {
    guard let participation = participation else {
      return ""
    }
    
    var text = participation.replacingOccurrences(of: ",", with: "")
    
    if text.characters.count > 4 {
      text.insert(",", at: text.characters.index(text.startIndex, offsetBy: 3))
    }
    
    return text
  }
  
}