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use crate::{responder::Responder, response::Response};
use hyper::header::InvalidHeaderValue;
use std::fmt::Debug;

#[derive(thiserror::Error)]
pub enum Error {
    #[error("Hyper: {0}")]
    Hyper(#[from] hyper::Error),

    #[error("Http: {0}")]
    Http(#[from] hyper::http::Error),

    #[error("Io: {0}")]
    Io(#[from] std::io::Error),

    #[error("Boxed: {0}")]
    Boxed(Box<dyn std::error::Error + Send + Sync + 'static>),

    #[error("Error: {0}")]
    Other(String),

    #[error("Response StatusCode `{0}`")]
    Status(u16),

    #[error("Response StatusCode `{0}`,Response Body: {1}")]
    Response(u16, serde_json::Value),

    #[error("Utf8Error: {0}")]
    Utf8Error(#[from] std::str::Utf8Error),

    #[error("SerdeJson: {0}")]
    SerdeJson(#[from] serde_json::error::Error),

    #[error("Deserialize error: {0}")]
    Deserialize(#[from] serde::de::value::Error),

    #[error("http header error: {0}")]
    ToStrError(#[from] hyper::header::ToStrError),

    #[cfg(feature = "native_tls")]
    #[error("tokio_native_tls error: {0}")]
    TokioNativeTls(#[from] tokio_native_tls::native_tls::Error),

    #[error("Missing parameter `{0}` (is_query: {1})")]
    MissingParameter(String, bool),

    #[error("Invalid parameter `{0}` (is_query: {1})")]
    InvalidParameter(String, bool),

    #[cfg(feature = "msgpack")]
    #[error("Could not deserialize the body of a request or response from MessagePack")]
    MsgpackDe(#[source] rmp_serde::decode::Error),

    #[error("An multer error: {0}")]
    Multer(#[from] multer::Error),

    #[cfg(feature = "validate")]
    #[error("ValidationErrors: {0}")]
    ValidationErrors(#[from] validator::ValidationErrors),

    #[cfg(feature = "websocket")]
    #[error("WebSocket: {0}")]
    WebSocket(#[from] tokio_tungstenite::tungstenite::Error),
}

impl Error {
    #[inline]
    pub(crate) fn response_builder(self, builder: Response) -> Response {
        match self {
            Self::Hyper(e) => builder.status(500).text(e.to_string()),
            Self::Http(e) => builder.status(500).text(e.to_string()),
            Self::Io(e) => builder.status(500).text(e.to_string()),
            #[cfg(feature = "native_tls")]
            Self::TokioNativeTls(e) => builder.status(500).text(e.to_string()),
            Self::Boxed(e) => builder.status(500).text(e.to_string()),
            Self::Other(e) => builder.status(400).text(e.to_string()),
            Self::Status(s) => builder.status(s),
            Self::Response(s, e) => builder.status(s).text(e.to_string()),
            Self::Utf8Error(e) => builder.status(400).text(e.to_string()),
            Self::SerdeJson(e) => builder.status(400).text(e.to_string()),
            Self::Deserialize(e) => builder.status(400).text(e.to_string()),
            Self::ToStrError(e) => builder.status(400).text(e.to_string()),
            Self::MissingParameter(e, _) => builder.status(400).text(e.to_string()),
            Self::InvalidParameter(e, _) => builder.status(400).text(e.to_string()),
            #[cfg(feature = "msgpack")]
            Self::MsgpackDe(e) => builder.status(400).text(e.to_string()),
            Self::Multer(e) => builder.status(400).text(e.to_string()),
            #[cfg(feature = "validate")]
            Self::ValidationErrors(e) => builder.status(400).text(e.to_string()),
            #[cfg(feature = "websocket")]
            Self::WebSocket(e) => builder.status(400).text(e.to_string()),
        }
    }
}

impl Debug for Error {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        match self {
            Self::Hyper(d) => std::fmt::Debug::fmt(d, f),
            Self::Http(d) => std::fmt::Debug::fmt(d, f),
            Self::Io(d) => std::fmt::Debug::fmt(d, f),
            Self::Boxed(d) => std::fmt::Debug::fmt(d, f),
            Self::Other(d) => std::fmt::Debug::fmt(d, f),
            Self::Status(d) => std::fmt::Debug::fmt(d, f),
            Self::Response(_, d) => std::fmt::Debug::fmt(d, f),
            Self::Utf8Error(d) => std::fmt::Debug::fmt(d, f),
            Self::SerdeJson(d) => std::fmt::Debug::fmt(d, f),
            Self::Deserialize(d) => std::fmt::Debug::fmt(d, f),
            Self::ToStrError(d) => std::fmt::Debug::fmt(d, f),
            Self::MissingParameter(d, _) => std::fmt::Debug::fmt(d, f),
            Self::InvalidParameter(d, _) => std::fmt::Debug::fmt(d, f),
            #[cfg(feature = "native_tls")]
            Self::TokioNativeTls(d) => std::fmt::Debug::fmt(d, f),
            #[cfg(feature = "msgpack")]
            Self::MsgpackDe(d) => std::fmt::Debug::fmt(d, f),
            Self::Multer(d) => std::fmt::Debug::fmt(d, f),
            #[cfg(feature = "validate")]
            Self::ValidationErrors(d) => std::fmt::Debug::fmt(d, f),
            #[cfg(feature = "websocket")]
            Self::WebSocket(d) => std::fmt::Debug::fmt(d, f),
        }
    }
}

impl From<std::convert::Infallible> for Error {
    fn from(e: std::convert::Infallible) -> Self {
        Self::Boxed(Box::new(e))
    }
}

impl From<InvalidHeaderValue> for Error {
    #[inline]
    fn from(e: InvalidHeaderValue) -> Self {
        Error::Http(hyper::http::Error::from(e))
    }
}

impl Responder for Error {
    #[inline]
    fn response(self, builder: Response) -> Response {
        self.response_builder(builder)
    }
}