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//!
//! Errors produced by [`workflow_terminal`](super)
//!

use downcast::DowncastError;
use std::sync::PoisonError;
use thiserror::Error;
use wasm_bindgen::JsValue;
use workflow_core::channel::{ChannelError, RecvError, SendError, TrySendError};

#[derive(Debug, Error)]
pub enum Error {
    #[error("{0}")]
    Custom(String),
    #[error("{0}")]
    JsValue(String),
    #[error("Poison Error: {0}")]
    PoisonError(String),
    #[error("Channel Receive Error")]
    RecvError,
    #[error("Channel Send Error: {0}")]
    SendError(String),
    #[error("Channel TrySend Error: {0}")]
    TrySendError(String),
    #[error(transparent)]
    DomError(#[from] workflow_dom::error::Error),
    #[error("Channel error: {0}")]
    ChannelError(String),
    #[error(transparent)]
    Io(#[from] std::io::Error),
    #[error("{0}")]
    DowncastError(String),
    #[error("command not found: {0}")]
    CommandNotFound(String),
    #[error("aborting...")]
    UserAbort,
    #[error(transparent)]
    CallbackError(#[from] workflow_wasm::callback::CallbackError),
}

impl From<String> for Error {
    fn from(v: String) -> Self {
        Self::Custom(v)
    }
}
impl From<&str> for Error {
    fn from(v: &str) -> Self {
        Self::Custom(v.to_string())
    }
}

impl From<JsValue> for Error {
    fn from(v: JsValue) -> Self {
        Self::JsValue(format!("{v:?}"))
    }
}

impl<T> From<PoisonError<T>> for Error
where
    T: std::fmt::Debug,
{
    fn from(err: PoisonError<T>) -> Error {
        Error::PoisonError(format!("{err:?}"))
    }
}

impl From<RecvError> for Error {
    fn from(_err: RecvError) -> Error {
        Error::RecvError
    }
}

impl<T> From<TrySendError<T>> for Error
where
    T: std::fmt::Debug,
{
    fn from(err: TrySendError<T>) -> Error {
        Error::TrySendError(format!("{err:?}"))
    }
}

impl<T> From<SendError<T>> for Error
where
    T: std::fmt::Debug,
{
    fn from(err: SendError<T>) -> Error {
        Error::SendError(format!("{err:?}"))
    }
}

impl From<Error> for String {
    fn from(err: Error) -> String {
        match err {
            Error::Custom(s) => s,
            _ => err.to_string(),
        }
    }
}

impl From<Error> for JsValue {
    fn from(err: Error) -> JsValue {
        let s: String = err.into();
        JsValue::from_str(&s)
    }
}

impl<T> From<ChannelError<T>> for Error {
    fn from(err: ChannelError<T>) -> Error {
        Error::ChannelError(err.to_string())
    }
}

impl<T> From<DowncastError<T>> for Error {
    fn from(err: DowncastError<T>) -> Error {
        Error::DowncastError(err.to_string())
    }
}