import Foundation

extension String {
    /// Strips trailing date parentheticals from chapter titles.
    /// Handles formats like:
    ///   " (January 5, 2025)"
    ///   " - Jan 01 2024"
    func strippingTrailingDate() -> String {
        let patterns = [
            #"\s*\([A-Za-z]+ \d{1,2},\s+\d{4}\)\s*$"#,
            #"\s*[-–]\s*\w+\s+\d{1,2}\s+\d{4}\s*$"#,
        ]
        var result = self
        for pattern in patterns {
            result = result.replacingOccurrences(of: pattern, with: "", options: .regularExpression)
        }
        return result.trimmingCharacters(in: .whitespaces)
    }
}