// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0
//
// WARNING: This file is automatically generated from OpenAPI schema using
// `openstack-codegenerator`.

//! Atomically removes a set of extra routes from the router’s already existing
//! extra routes.
//!
//! This operation is a variation on updating the router’s `routes` parameter.
//! In all ways it works the same, except the extra routes sent in the request
//! body do not replace the existing set of extra routes. Instead the the extra
//! routes sent are removed from the existing set of extra routes.
//!
//! The use of the add_extraroutes/remove_extraroutes member actions is
//! preferred to updating the `routes` attribute in all cases when concurrent
//! updates to the set of extra routes are possible.
//!
//! The removal’s corner cases behave the following way:
//!
//! The format of the request body is the same as the format of a PUT request
//! to the router changing the `routes` parameter only. However the routes sent
//! are not meant to overwrite the whole `routes` parameter, but they are meant
//! to be removed from the existing set.
//!
//! The response codes and response body are the same as to the update of the
//! `routes` parameter. That is the whole router object is returned including
//! the `routes` parameter which represents the result of the removal.
//!
//! Normal response codes: 200
//!
//! Error response codes: 400, 401, 404, 412
//!
use derive_builder::Builder;
use http::{HeaderMap, HeaderName, HeaderValue};

use crate::api::rest_endpoint_prelude::*;

use serde::Deserialize;
use serde::Serialize;
use std::borrow::Cow;

#[derive(Builder, Debug, Deserialize, Clone, Serialize)]
#[builder(setter(strip_option))]
pub struct Routes<'a> {
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(into))]
    pub(crate) destination: Option<Cow<'a, str>>,

    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(into))]
    pub(crate) nexthop: Option<Cow<'a, str>>,
}

#[derive(Builder, Debug, Deserialize, Clone, Serialize)]
#[builder(setter(strip_option))]
pub struct Router<'a> {
    /// The extra routes configuration for L3 router. A list of dictionaries
    /// with `destination` and `nexthop` parameters. It is available when
    /// `extraroute` extension is enabled.
    ///
    #[serde(skip_serializing_if = "Option::is_none")]
    #[builder(default, setter(into))]
    pub(crate) routes: Option<Vec<Routes<'a>>>,
}

#[derive(Builder, Debug, Clone)]
#[builder(setter(strip_option))]
pub struct Request<'a> {
    #[builder(setter(into))]
    pub(crate) router: Router<'a>,

    /// id parameter for /v2.0/routers/{id} API
    ///
    #[builder(default, setter(into))]
    id: Cow<'a, str>,

    #[builder(setter(name = "_headers"), default, private)]
    _headers: Option<HeaderMap>,
}
impl<'a> Request<'a> {
    /// Create a builder for the endpoint.
    pub fn builder() -> RequestBuilder<'a> {
        RequestBuilder::default()
    }
}

impl<'a> RequestBuilder<'a> {
    /// Add a single header to the Router.
    pub fn header(&mut self, header_name: &'static str, header_value: &'static str) -> &mut Self
where {
        self._headers
            .get_or_insert(None)
            .get_or_insert_with(HeaderMap::new)
            .insert(header_name, HeaderValue::from_static(header_value));
        self
    }

    /// Add multiple headers.
    pub fn headers<I, T>(&mut self, iter: I) -> &mut Self
    where
        I: Iterator<Item = T>,
        T: Into<(Option<HeaderName>, HeaderValue)>,
    {
        self._headers
            .get_or_insert(None)
            .get_or_insert_with(HeaderMap::new)
            .extend(iter.map(Into::into));
        self
    }
}

impl<'a> RestEndpoint for Request<'a> {
    fn method(&self) -> http::Method {
        http::Method::PUT
    }

    fn endpoint(&self) -> Cow<'static, str> {
        format!("routers/{id}/remove_extraroutes", id = self.id.as_ref(),).into()
    }

    fn parameters(&self) -> QueryParams {
        QueryParams::default()
    }

    fn body(&self) -> Result<Option<(&'static str, Vec<u8>)>, BodyError> {
        let mut params = JsonBodyParams::default();

        params.push("router", serde_json::to_value(&self.router)?);

        params.into_body()
    }

    fn service_type(&self) -> ServiceType {
        ServiceType::Network
    }

    fn response_key(&self) -> Option<Cow<'static, str>> {
        Some("router".into())
    }

    /// Returns headers to be set into the request
    fn request_headers(&self) -> Option<&HeaderMap> {
        self._headers.as_ref()
    }

    /// Returns required API version
    fn api_version(&self) -> Option<ApiVersion> {
        Some(ApiVersion::new(2, 0))
    }
}

#[cfg(test)]
mod tests {
    #![allow(unused_imports)]
    use super::*;
    #[cfg(feature = "sync")]
    use crate::api::Query;
    #[cfg(feature = "sync")]
    use crate::test::client::MockServerClient;
    use crate::types::ServiceType;
    use http::{HeaderName, HeaderValue};
    use serde_json::json;

    #[test]
    fn test_service_type() {
        assert_eq!(
            Request::builder()
                .router(RouterBuilder::default().build().unwrap())
                .build()
                .unwrap()
                .service_type(),
            ServiceType::Network
        );
    }

    #[test]
    fn test_response_key() {
        assert_eq!(
            Request::builder()
                .router(RouterBuilder::default().build().unwrap())
                .build()
                .unwrap()
                .response_key()
                .unwrap(),
            "router"
        );
    }

    #[cfg(feature = "sync")]
    #[test]
    fn endpoint() {
        let client = MockServerClient::new();
        let mock = client.server.mock(|when, then| {
            when.method(httpmock::Method::PUT)
                .path(format!("/routers/{id}/remove_extraroutes", id = "id",));

            then.status(200)
                .header("content-type", "application/json")
                .json_body(json!({ "router": {} }));
        });

        let endpoint = Request::builder()
            .id("id")
            .router(RouterBuilder::default().build().unwrap())
            .build()
            .unwrap();
        let _: serde_json::Value = endpoint.query(&client).unwrap();
        mock.assert();
    }

    #[cfg(feature = "sync")]
    #[test]
    fn endpoint_headers() {
        let client = MockServerClient::new();
        let mock = client.server.mock(|when, then| {
            when.method(httpmock::Method::PUT)
                .path(format!("/routers/{id}/remove_extraroutes", id = "id",))
                .header("foo", "bar")
                .header("not_foo", "not_bar");
            then.status(200)
                .header("content-type", "application/json")
                .json_body(json!({ "router": {} }));
        });

        let endpoint = Request::builder()
            .id("id")
            .router(RouterBuilder::default().build().unwrap())
            .headers(
                [(
                    Some(HeaderName::from_static("foo")),
                    HeaderValue::from_static("bar"),
                )]
                .into_iter(),
            )
            .header("not_foo", "not_bar")
            .build()
            .unwrap();
        let _: serde_json::Value = endpoint.query(&client).unwrap();
        mock.assert();
    }
}