VirtWeb/virtweb_backend/src/controllers/mod.rs

use actix_web::body::BoxBody;
use actix_web::HttpResponse;
use std::error::Error;
use std::fmt::{Display, Formatter};
use std::io::ErrorKind;

pub mod auth_controller;
pub mod iso_controller;
pub mod server_controller;

/// Custom error to ease controller writing
#[derive(Debug)]
pub struct HttpErr {
    err: anyhow::Error,
}

impl Display for HttpErr {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        Display::fmt(&self.err, f)
    }
}

impl actix_web::error::ResponseError for HttpErr {
    fn error_response(&self) -> HttpResponse<BoxBody> {
        log::error!("Error while processing request! {}", self);
        HttpResponse::InternalServerError().body("Failed to execute request!")
    }
}

impl From<anyhow::Error> for HttpErr {
    fn from(err: anyhow::Error) -> HttpErr {
        HttpErr { err }
    }
}

impl From<serde_json::Error> for HttpErr {
    fn from(value: serde_json::Error) -> Self {
        HttpErr { err: value.into() }
    }
}

impl From<Box<dyn Error>> for HttpErr {
    fn from(value: Box<dyn Error>) -> Self {
        HttpErr {
            err: std::io::Error::new(ErrorKind::Other, value.to_string()).into(),
        }
    }
}

impl From<std::io::Error> for HttpErr {
    fn from(value: std::io::Error) -> Self {
        HttpErr { err: value.into() }
    }
}

impl From<std::num::ParseIntError> for HttpErr {
    fn from(value: std::num::ParseIntError) -> Self {
        HttpErr { err: value.into() }
    }
}

impl From<tempfile::PersistError> for HttpErr {
    fn from(value: tempfile::PersistError) -> Self {
        HttpErr { err: value.into() }
    }
}

pub type HttpResult = Result<HttpResponse, HttpErr>;