#![cfg(any(feature = "actix4", feature = "actix3", feature = "actix2"))]

#[cfg(feature = "actix2")]
extern crate actix_web2 as actix_web;
#[cfg(feature = "actix3")]
extern crate actix_web3 as actix_web;
#[cfg(feature = "actix4")]
extern crate actix_web4 as actix_web;
extern crate serde;

#[macro_use]
extern crate serde_derive;
extern crate serde_qs as qs;

use actix_web::error::InternalError;
use actix_web::http::StatusCode;
use actix_web::test::TestRequest;
use actix_web::{FromRequest, HttpResponse};
use qs::actix::{QsQuery, QsQueryConfig};
use qs::Config as QsConfig;
use serde::de::Error;

fn from_str<'de, D, S>(deserializer: D) -> Result<S, D::Error>
where
    D: serde::Deserializer<'de>,
    S: std::str::FromStr,
{
    let s = <&str as serde::Deserialize>::deserialize(deserializer)?;
    S::from_str(&s).map_err(|_| D::Error::custom("could not parse string"))
}

#[derive(Deserialize, Serialize, Debug, PartialEq)]
struct Query {
    foo: u64,
    bars: Vec<u64>,
    #[serde(flatten)]
    common: CommonParams,
}

#[derive(Deserialize, Serialize, Debug, PartialEq)]
struct CommonParams {
    #[serde(deserialize_with = "from_str")]
    limit: u64,
    #[serde(deserialize_with = "from_str")]
    offset: u64,
    #[serde(deserialize_with = "from_str")]
    remaining: bool,
}

#[test]
fn test_default_error_handler() {
    futures::executor::block_on(async {
        let req = TestRequest::with_uri("/test").to_srv_request();
        let (req, mut pl) = req.into_parts();

        let e = QsQuery::<Query>::from_request(&req, &mut pl)
            .await
            .unwrap_err();
        assert_eq!(
            e.as_response_error().error_response().status(),
            StatusCode::BAD_REQUEST
        );
    })
}

#[test]
fn test_custom_error_handler() {
    futures::executor::block_on(async {
        let req = TestRequest::with_uri("/test")
            .app_data(QsQueryConfig::default().error_handler(|e, _| {
                let resp = HttpResponse::UnprocessableEntity().finish();
                dbg!(&resp);
                InternalError::from_response(e, resp).into()
            }))
            .to_srv_request();

        let (req, mut pl) = req.into_parts();
        let query = QsQuery::<Query>::from_request(&req, &mut pl).await;

        assert!(query.is_err());
        assert_eq!(
            query
                .unwrap_err()
                .as_response_error()
                .error_response()
                .status(),
            StatusCode::UNPROCESSABLE_ENTITY
        );
    })
}

#[test]
fn test_composite_querystring_extractor() {
    futures::executor::block_on(async {
        let req = TestRequest::with_uri(
            "/test?foo=1&bars[]=0&bars[]=1&limit=100&offset=50&remaining=true",
        )
        .to_srv_request();
        let (req, mut pl) = req.into_parts();

        let s = QsQuery::<Query>::from_request(&req, &mut pl).await.unwrap();
        assert_eq!(s.foo, 1);
        assert_eq!(s.bars, vec![0, 1]);
        assert_eq!(s.common.limit, 100);
        assert_eq!(s.common.offset, 50);
        assert_eq!(s.common.remaining, true);
    })
}

#[test]
fn test_default_qs_config() {
    futures::executor::block_on(async {
        let req =
            TestRequest::with_uri("/test?foo=1&bars%5B%5D=3&limit=100&offset=50&remaining=true")
                .to_srv_request();
        let (req, mut pl) = req.into_parts();

        let e = QsQuery::<Query>::from_request(&req, &mut pl)
            .await
            .unwrap_err();
        assert_eq!(
            e.as_response_error().error_response().status(),
            StatusCode::BAD_REQUEST
        );
    })
}

#[test]
fn test_custom_qs_config() {
    futures::executor::block_on(async {
        let req =
            TestRequest::with_uri("/test?foo=1&bars%5B%5D=3&limit=100&offset=50&remaining=true")
                .app_data(QsQueryConfig::default().qs_config(QsConfig::new(5, false)))
                .to_srv_request();

        let (req, mut pl) = req.into_parts();

        let s = QsQuery::<Query>::from_request(&req, &mut pl).await.unwrap();
        assert_eq!(s.foo, 1);
        assert_eq!(s.bars, vec![3]);
        assert_eq!(s.common.limit, 100);
        assert_eq!(s.common.offset, 50);
        assert_eq!(s.common.remaining, true);
    })
}