I’m trying to write code to simply describe how much time has elapsed since an event, but described in only one term, eg. years, months, days, hours, minutes…

I’ve written this code but it feels like there should be a much cleaner and simpler way of doing this. Any suggestions?

func fuzzyDistanceToNow(includeJustNow blIncludeJustNow: Bool, appendString stAppendString: String) -> String {
    
        let dDistance = abs(self.distance(to: Date())) //Distance to now
        
        let iYears = trunc(dDistance/31536000)
        let iMonths = trunc(dDistance/2628000)
        let iDays = trunc(dDistance/86400)
        let iHours = trunc(dDistance/3600)
        let iMinutes = trunc(dDistance/60)
        let iSeconds = trunc(dDistance) //Not really needed
        
        var sReturn: String
        
        if iYears >= 2 {
            sReturn = iYears.formatted()+" years"
        } else if iYears == 1 {
            sReturn = "1 year"
        } else if iMonths >= 2 {
            sReturn = iMonths.formatted()+" months"
        } else if iMonths == 1 {
            sReturn = "1 month"
        } else if iDays >= 2 {
            sReturn = iDays.formatted()+" days"
        } else if iDays == 1 {
            sReturn = "1 day"
        } else if iHours >= 2 {
            sReturn = iHours.formatted()+" hours"
        } else if iHours == 1 {
            sReturn = "1 hour"
        } else if iMinutes >= 2 {
            sReturn = iMinutes.formatted()+" minutes"
        } else if iMinutes == 1 {
            sReturn = "1 minute"
        } else if blIncludeJustNow {
            sReturn = "just now"
        } else {
            sReturn = ""
        }
        
        if stAppendString != "" && sReturn != "just now" {
            sReturn += stAppendString
        }
        return sReturn
    }
    
}

I’ve written the above code, but it doesn’t feel particularly efficient. Are there some functions or shortcuts I’m missing?