gistfile1.txt

private func checkRarity(from imageEmbedding: [Float]) -> Rarity {
    guard let first = imageEmbedding.first else {
        return .common
    }

    let decimalString = String(format: "%.12f", first)
    if let lastDigitChar = decimalString.last,
       let digit = Int(String(lastDigitChar)) {
            switch digit {
            case 9:
                return .secretRare
            case 7...8:
                return .ultraRare
            case 4...6:
                return .rare
            default:
                return .common
            }
    } else {
        return .common
    }
}