Emcee

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import Foundation
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import PathLib
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import ResourceLocation
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public extension ResolvingResult {
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    enum DirectlyAccessibleResourceError: Error, CustomStringConvertible {
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        case archiveFilenameNotSpecified(ResolvingResult)
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        public var description: String {
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            switch self {
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            case .archiveFilenameNotSpecified(let resolvingResult):
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                return "Unable to resolve directly accessible resource for \(resolvingResult) because archive file name is not specified"
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            }
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        }
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    }
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    /// Returns path in case if ResolvingResult points to local file or to remote archive with specified file inside it.
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    /// Otherwise throws error.
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    func directlyAccessibleResourcePath() throws -> AbsolutePath {
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        switch self {
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        case .directlyAccessibleFile(let path):
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            return path
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        case .contentsOfArchive(let containerPath, let filenameInArchive):
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            if let filenameInArchive = filenameInArchive {
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                return containerPath.appending(filenameInArchive)
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            } else {
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                throw DirectlyAccessibleResourceError.archiveFilenameNotSpecified(self)
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            }
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        }
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    }
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}
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