import Foundation

/// Describes any errors that can happen with the PageFetcher.
public enum PageFetcherError: Error, LocalizedError {
    case sessionCreationFailed
    case invalidSessionResponse
    case noActiveSession
    case seleniumError(Int, String)
    case requestFailed
    case invalidPageSourceResponse

    public var errorDescription: String? {
        switch self {
        case .sessionCreationFailed:
            "Failed to create WebDriver session"
        case .invalidSessionResponse:
            "Invalid response when creating WebDriver session"
        case .noActiveSession:
            "No active WebDriver session"
        case let .seleniumError(code, message):
            "Selenium error (HTTP \(code)): \(message)"
        case .requestFailed:
            "Failed to make request"
        case .invalidPageSourceResponse:
            "Invalid response when getting page source"
        }
    }
}