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/*
* Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

use std::convert::From;

use actix_web::{
    dev::BaseHttpResponseBuilder as HttpResponseBuilder,
    error::ResponseError,
    http::{header, StatusCode},
    HttpResponse,
};
use derive_more::{Display, Error};
use libathena::ErrorToResponse;

#[derive(Debug, Display, PartialEq, Error)]
#[cfg(not(tarpaulin_include))]
pub enum ServiceError {
    #[display(fmt = "internal server error")]
    InternalServerError,

    #[display(fmt = "Wrong password")]
    WrongPassword,
}

#[cfg(not(tarpaulin_include))]
impl ResponseError for ServiceError {
    #[cfg(not(tarpaulin_include))]
    fn error_response(&self) -> HttpResponse {
        HttpResponseBuilder::new(self.status_code())
            .append_header((header::CONTENT_TYPE, "application/json; charset=UTF-8"))
            .body(
                serde_json::to_string(&ErrorToResponse {
                    error: self.to_string(),
                })
                .unwrap(),
            )
            .into()
    }

    #[cfg(not(tarpaulin_include))]
    fn status_code(&self) -> StatusCode {
        match self {
            ServiceError::InternalServerError => StatusCode::INTERNAL_SERVER_ERROR,
            ServiceError::WrongPassword => StatusCode::UNAUTHORIZED,
        }
    }
}

#[cfg(not(tarpaulin_include))]
impl From<sqlx::Error> for ServiceError {
    #[cfg(not(tarpaulin_include))]
    fn from(e: sqlx::Error) -> Self {
        log::error!("{:?}", e);
        ServiceError::InternalServerError
    }
}

#[cfg(not(tarpaulin_include))]
pub type ServiceResult<V> = std::result::Result<V, ServiceError>;