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use serde::{Deserialize, Serialize};
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use crate::{
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    commands::{Command, CommandRequest, RequestParserError, empty_command_response},
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    request_tokenizer::RequestTokenizer,
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    types::SongPosition,
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};
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pub struct Swap;
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#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
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pub struct SwapRequest {
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    pub songpos1: SongPosition,
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    pub songpos2: SongPosition,
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}
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impl SwapRequest {
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    pub fn new(songpos1: SongPosition, songpos2: SongPosition) -> Self {
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        Self { songpos1, songpos2 }
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    }
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}
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impl CommandRequest for SwapRequest {
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    const COMMAND: &'static str = "swap";
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    const MIN_ARGS: u32 = 2;
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    const MAX_ARGS: Option<u32> = Some(2);
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    fn into_request_enum(self) -> crate::Request {
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        crate::Request::Swap(self.songpos1, self.songpos2)
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    }
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    fn from_request_enum(request: crate::Request) -> Option<Self> {
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        match request {
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            crate::Request::Swap(songpos1, songpos2) => Some(SwapRequest { songpos1, songpos2 }),
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            _ => None,
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        }
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    }
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    fn serialize(&self) -> String {
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        format!("{} {} {}\n", Self::COMMAND, self.songpos1, self.songpos2)
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    }
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    fn parse(mut parts: RequestTokenizer<'_>) -> Result<Self, RequestParserError> {
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        let songpos1 = parts.next().ok_or(Self::missing_arguments_error(0))?;
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        let songpos1 = songpos1
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            .parse()
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            .map_err(|_| RequestParserError::SubtypeParserError {
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                argument_index: 0,
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                expected_type: "SongPosition",
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                raw_input: songpos1.to_string(),
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            })?;
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        let songpos2 = parts.next().ok_or(Self::missing_arguments_error(1))?;
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        let songpos2 = songpos2
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            .parse()
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            .map_err(|_| RequestParserError::SubtypeParserError {
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                argument_index: 1,
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                expected_type: "SongPosition",
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                raw_input: songpos2.to_string(),
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            })?;
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        Self::throw_if_too_many_arguments(parts)?;
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        Ok(SwapRequest { songpos1, songpos2 })
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    }
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}
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empty_command_response!(Swap);
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impl Command for Swap {
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    type Request = SwapRequest;
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    type Response = SwapResponse;
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}