use crate::commands::{
    Command, Request, RequestParserResult, ResponseAttributes, ResponseParserError,
};

pub struct Clear;

impl Command for Clear {
    type Response = ();
    const COMMAND: &'static str = "clear";

    fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
        debug_assert!(parts.next().is_none());
        Ok((Request::Clear, ""))
    }

    fn parse_response(
        parts: ResponseAttributes<'_>,
    ) -> Result<Self::Response, ResponseParserError> {
        debug_assert!(parts.is_empty());
        Ok(())
    }
}