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use jormungandr_lib::interfaces::FragmentsProcessingSummary;
use warp::{http::StatusCode, Rejection, Reply};

#[derive(Debug)]
pub struct ForcedErrorCode {
    pub code: u16,
}

#[derive(Debug)]
pub struct InvalidBatch {
    pub summary: FragmentsProcessingSummary,
    pub code: u16,
}

#[derive(Debug)]
pub struct GeneralException {
    pub summary: String,
    pub code: u16,
}

impl GeneralException {
    pub fn account_does_not_exist() -> Self {
        Self {
            summary: "".to_string(),
            code: 404,
        }
    }

    pub fn hex_encoding_malformed() -> Self {
        Self {
            summary: "hex encoding malformed".to_string(),
            code: 400,
        }
    }
    pub fn proposal_not_found(proposal_id: i32) -> Self {
        let format = r#"{"code":404,"message":"The data requested data for `proposal with id {}` is not available"}"#;
        Self {
            summary: format.replace("{}", &proposal_id.to_string()),
            code: 404,
        }
    }
}

impl warp::reject::Reject for ForcedErrorCode {}
impl warp::reject::Reject for InvalidBatch {}
impl warp::reject::Reject for GeneralException {}
impl warp::reject::Reject for crate::mode::mock::ContextError {}

pub async fn report_invalid(r: Rejection) -> Result<impl Reply, Rejection> {
    if let Some(forced_error_code) = r.find::<ForcedErrorCode>() {
        return Ok(warp::reply::with_status(
            "forced rejections".to_string(),
            StatusCode::from_u16(forced_error_code.code).unwrap(),
        ));
    }
    if let Some(invalid_batch) = r.find::<InvalidBatch>() {
        return Ok(warp::reply::with_status(
            serde_json::to_string(&invalid_batch.summary).unwrap(),
            StatusCode::from_u16(invalid_batch.code).unwrap(),
        ));
    }
    if let Some(exception) = r.find::<GeneralException>() {
        return Ok(warp::reply::with_status(
            exception.summary.clone(),
            StatusCode::from_u16(exception.code).unwrap(),
        ));
    }
    Err(r)
}