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use crate::{api_error::ApiError, ratelimiting::RatelimitError}; use futures_channel::oneshot::Canceled; use reqwest::{header::InvalidHeaderValue, Error as ReqwestError, StatusCode}; use std::{ error::Error as StdError, fmt::{Display, Error as FmtError, Formatter, Result as FmtResult}, num::ParseIntError, result::Result as StdResult, }; use url::ParseError as UrlParseError; #[cfg(not(feature = "simd-json"))] use serde_json::Error as JsonError; #[cfg(feature = "simd-json")] use simd_json::Error as JsonError; pub type Result<T, E = Error> = StdResult<T, E>; #[derive(Debug)] #[non_exhaustive] pub enum UrlError { UrlParsing { source: UrlParseError }, IdParsing { source: ParseIntError }, SegmentMissing, } impl Display for UrlError { fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult { match self { Self::UrlParsing { source, .. } => write!(f, "Url path couldn't be parsed: {}", source), Self::IdParsing { source, .. } => { write!(f, "Url path segment wasn't a valid ID: {}", source) } Self::SegmentMissing => f.write_str("Url was missing a required path segment"), } } } impl StdError for UrlError { fn source(&self) -> Option<&(dyn StdError + 'static)> { match self { Self::UrlParsing { source, .. } => Some(source), Self::IdParsing { source, .. } => Some(source), Self::SegmentMissing => None, } } } impl From<UrlParseError> for UrlError { fn from(source: UrlParseError) -> Self { Self::UrlParsing { source } } } impl From<ParseIntError> for UrlError { fn from(source: ParseIntError) -> Self { Self::IdParsing { source } } } #[derive(Debug)] #[non_exhaustive] pub enum Error { BuildingClient { source: ReqwestError, }, ChunkingResponse { source: ReqwestError, }, CreatingHeader { name: String, source: InvalidHeaderValue, }, Formatting { source: FmtError, }, Json { source: JsonError, }, Parsing { body: Vec<u8>, source: JsonError, }, Url { source: UrlError, }, Ratelimiting { source: RatelimitError, }, RequestCanceled { source: Canceled, }, RequestError { source: ReqwestError, }, Response { body: Vec<u8>, error: ApiError, status: StatusCode, }, } impl From<FmtError> for Error { fn from(source: FmtError) -> Self { Self::Formatting { source } } } impl From<JsonError> for Error { fn from(source: JsonError) -> Self { Self::Json { source } } } impl From<UrlError> for Error { fn from(source: UrlError) -> Self { Self::Url { source } } } impl Display for Error { fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult { match self { Self::BuildingClient { .. } => { f.write_str("HTTP client couldn't be built due to a reqwest client error") } Self::ChunkingResponse { .. } => f.write_str("Chunking the response failed"), Self::CreatingHeader { name, .. } => { write!(f, "Parsing the value for header {} failed", name) } Self::Formatting { .. } => f.write_str("Formatting a string failed"), Self::Json { .. } => f.write_str("Given value couldn't be serialized"), Self::Parsing { body, .. } => { write!(f, "Response body couldn't be deserialized: {:?}", body) } Self::Url { source, .. } => write!(f, "{}", source), Self::Ratelimiting { .. } => f.write_str("Ratelimiting failure"), Self::RequestCanceled { .. } => { f.write_str("Request was canceled either before or while being sent") } Self::RequestError { .. } => f.write_str("Parsing or sending the response failed"), Self::Response { error, status, .. } => write!( f, "Response error: status code {}, error: {}", status, error ), } } } impl StdError for Error { fn source(&self) -> Option<&(dyn StdError + 'static)> { match self { Self::CreatingHeader { source, .. } => Some(source), Self::Formatting { source } => Some(source), Self::Json { source } | Self::Parsing { source, .. } => Some(source), Self::Url { source } => Some(source), Self::Ratelimiting { source } => Some(source), Self::RequestCanceled { source } => Some(source), Self::BuildingClient { source } | Self::ChunkingResponse { source } | Self::RequestError { source } => Some(source), Self::Response { .. } => None, } } }