import Foundation

public enum ShotdeckError: Error, LocalizedError, Sendable {
    case screenRecordingNotGranted
    case noRegionRemembered
    case displayNoLongerConnected(displayID: UInt32)
    case captureFailed(underlying: String)
    case spoolWriteFailed(path: String, underlying: String)
    case manifestCorrupt(path: String)
    case pdfCompositionFailed(reason: String)
    case airDropUnavailable
    case noCommentedReturns

    public var errorDescription: String? {
        switch self {
        case .screenRecordingNotGranted:
            return "Screen Recording is turned off. Grant it in System Settings to capture."
        case .noRegionRemembered:
            return "No capture region is set. Choose 'Re-select area' from the Redline menu."
        case .displayNoLongerConnected:
            return "The display used for capture is no longer connected."
        case .captureFailed(let underlying):
            return "The screenshot could not be taken. \(underlying)"
        case .spoolWriteFailed(_, let underlying):
            return "The screenshot could not be saved. \(underlying)"
        case .manifestCorrupt:
            return "This session's file is damaged and cannot be opened."
        case .pdfCompositionFailed(let reason):
            return "The PDF could not be built. \(reason)"
        case .airDropUnavailable:
            return "AirDrop is not available right now."
        case .noCommentedReturns:
            return "None of the returned PDFs have comments on them."
        }
    }
}