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//! `POST /_matrix/client/*/delayed_events/{delayed_id}`
//!
//! Send a delayed event update. This can be a updateing/canceling/sending the associated delayed
//! event.

pub mod unstable {
    //! `msc3814` ([MSC])
    //!
    //! [MSC]: https://github.com/matrix-org/matrix-spec-proposals/pull/4140

    use ruma_common::{
        api::{request, response, Metadata},
        metadata,
        serde::StringEnum,
    };

    use crate::PrivOwnedStr;

    const METADATA: Metadata = metadata! {
        method: POST,
        rate_limited: true,
        authentication: AccessToken,
        history: {
            unstable => "/_matrix/client/unstable/org.matrix.msc4140/delayed_events/:delay_id",
        }
    };

    /// The possible update actions we can do for updating a delayed event.
    #[derive(Clone, StringEnum)]
    #[ruma_enum(rename_all = "lowercase")]
    #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
    pub enum UpdateAction {
        /// Restart the delayed event timeout. (heartbeat ping)
        Restart,
        /// Send the delayed event immediately independent of the timeout state. (deletes all
        /// timers)
        Send,
        /// Delete the delayed event and never send it. (deletes all timers)
        Cancel,

        #[doc(hidden)]
        _Custom(PrivOwnedStr),
    }
    /// Request type for the [`update_delayed_event`](crate::delayed_events::update_delayed_event)
    /// endpoint.
    #[request(error = crate::Error)]
    pub struct Request {
        /// The delay id that we want to update.
        #[ruma_api(path)]
        pub delay_id: String,
        /// Which kind of update we want to request for the delayed event.
        pub action: UpdateAction,
    }

    impl Request {
        /// Creates a new `Request` to update a delayed event.
        pub fn new(delay_id: String, action: UpdateAction) -> Self {
            Self { delay_id, action }
        }
    }

    /// Response type for the [`update_delayed_event`](crate::delayed_events::update_delayed_event)
    /// endpoint.
    #[response(error = crate::Error)]
    pub struct Response {}
    impl Response {
        /// Creates a new empty response for the
        /// [`update_delayed_event`](crate::delayed_events::update_delayed_event) endpoint.
        pub fn new() -> Self {
            Self {}
        }
    }

    #[cfg(all(test, feature = "client"))]
    mod tests {
        use ruma_common::api::{MatrixVersion, OutgoingRequest, SendAccessToken};
        use serde_json::{json, Value as JsonValue};

        use super::{Request, UpdateAction};
        #[test]
        fn serialize_update_delayed_event_request() {
            let request: http::Request<Vec<u8>> =
                Request::new("1234".to_owned(), UpdateAction::Cancel)
                    .try_into_http_request(
                        "https://homeserver.tld",
                        SendAccessToken::IfRequired("auth_tok"),
                        &[MatrixVersion::V1_1],
                    )
                    .unwrap();

            let (parts, body) = request.into_parts();

            assert_eq!(
                "https://homeserver.tld/_matrix/client/unstable/org.matrix.msc4140/delayed_events/1234",
                parts.uri.to_string()
            );
            assert_eq!("POST", parts.method.to_string());
            assert_eq!(
                json!({"action": "cancel"}),
                serde_json::from_str::<JsonValue>(std::str::from_utf8(&body).unwrap()).unwrap()
            );
        }
    }
}