72 lines
1.9 KiB
Rust
72 lines
1.9 KiB
Rust
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, Uri},
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};
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pub struct Add;
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#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
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pub struct AddRequest {
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uri: Uri,
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position: Option<SongPosition>,
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}
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impl CommandRequest for AddRequest {
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const COMMAND: &'static str = "add";
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const MIN_ARGS: u32 = 1;
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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::Add(self.uri, self.position)
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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::Add(uri, position) => Some(AddRequest { uri, position }),
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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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match self.position {
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Some(position) => format!("{} {} {}\n", Self::COMMAND, self.uri, position),
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None => format!("{} {}\n", Self::COMMAND, self.uri),
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}
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}
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fn parse(mut parts: RequestTokenizer<'_>) -> Result<Self, RequestParserError> {
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let uri = match parts.next() {
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Some(s) => s,
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None => return Err(Self::missing_arguments_error(0)),
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};
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let position = match parts.next() {
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Some(s) => Some(s.parse::<SongPosition>().map_err(|_| {
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RequestParserError::SubtypeParserError {
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argument_index: 1,
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expected_type: "SongPosition".to_string(),
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raw_input: s.to_owned(),
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}
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})?),
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None => None,
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};
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Self::throw_if_too_many_arguments(parts)?;
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Ok(AddRequest {
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uri: uri.to_string(),
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position,
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})
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}
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}
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empty_command_response!(Add);
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impl Command for Add {
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type Request = AddRequest;
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type Response = AddResponse;
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}
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