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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.


use SubtitleFormat;
pub use formats::idx::errors as idx_errors;
pub use formats::microdvd::errors as mdvd_errors;

pub use formats::srt::errors as srt_errors;
pub use formats::ssa::errors as ssa_errors;
pub use formats::vobsub::errors as vob_errors;

// see https://docs.rs/error-chain/0.8.1/error_chain/
#[cfg_attr(rustfmt, rustfmt_skip)]
error_chain! {
    foreign_links {
        FromUtf8Error(::std::string::FromUtf8Error)
        /// Converting byte-stream to string failed.
        ;
    }


    links {
        SsaError(ssa_errors::Error, ssa_errors::ErrorKind)
        /// Parsing a `.ssa`/`.ass` file failed.
        ;

        IdxError(idx_errors::Error, idx_errors::ErrorKind)
        /// Parsing a `.idx` file failed.
        ;

        SrtError(srt_errors::Error, srt_errors::ErrorKind)
        /// Parsing a `.srt` file failed.
        ;

        VobError(vob_errors::Error, vob_errors::ErrorKind)
        /// Parsing a `.sub` (VobSub) file failed.
        ;

        MdvdError(mdvd_errors::Error, mdvd_errors::ErrorKind)
        /// Parsing a `.sub` (MicroDVD) file failed.
        ;
    }

    errors {
        /// The file format is not supported by this library.
        UnknownFileFormat {
            description("unknown file format, only SubRip (.srt), SubStationAlpha (.ssa/.ass) and VobSub (.idx and .sub) are supported at the moment")
        }

        /// The file format is not supported by this library.
        DecodingError {
            description("error while decoding subtitle from bytes to string (wrong charset encoding?)")
        }

        /// The attempted operation does not work on binary subtitle formats.
        TextFormatOnly {
            description("operation does not work on binary subtitle formats (only text formats)")
        }

        /// The attempted operation does not work on this format (not supported in this version of this library).
        UpdatingEntriesNotSupported(format: SubtitleFormat) {
            description("updating subtitles is not implemented or supported by the `subparse` library for this format")
            display("updating subtitles is not implemented or supported by the `subparse` library for this format: {}", format.get_name())
        }
    }
}