/// Errors from wire protocol parsing/encoding.
#[derive(Debug, thiserror::Error)]
pub enum WireError {
    #[error("Incomplete message: need {needed} bytes, have {have}")]
    Incomplete { needed: usize, have: usize },

    #[error("Unsupported opCode: {0}")]
    UnsupportedOpCode(i32),

    #[error("Missing command body section in OP_MSG")]
    MissingBody,

    #[error("Unknown section type: {0}")]
    UnknownSectionType(u8),

    #[error("BSON deserialization error: {0}")]
    BsonError(#[from] bson::de::Error),

    #[error("BSON serialization error: {0}")]
    BsonSerError(#[from] bson::ser::Error),

    #[error("IO error: {0}")]
    IoError(#[from] std::io::Error),

    #[error("Checksum mismatch: expected {expected}, got {actual}")]
    ChecksumMismatch { expected: u32, actual: u32 },
}