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

pub struct ProtocolEnable;

impl Command for ProtocolEnable {
    type Response = ();
    const COMMAND: &'static str = "protocol enable";

    fn parse_request(parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
        let mut parts = parts.peekable();
        if parts.peek().is_none() {
            return Err(RequestParserError::UnexpectedEOF);
        }

        // TODO: verify that the features are split by whitespace
        let mut features = Vec::new();
        for feature in parts {
            features.push(feature.to_string());
        }

        Ok((Request::ProtocolEnable(features), ""))
    }

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