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//! `POST /_matrix/federation/*/user/keys/query`
//!
//! Module for getting information about the current devices and identity keys for the given users

pub mod v1 {
    //! `/v1/` ([spec])
    //!
    //! [spec]: https://spec.matrix.org/v1.2/server-server-api/#post_matrixfederationv1userkeysquery

    use std::collections::BTreeMap;

    use ruma_common::{
        api::ruma_api,
        encryption::{CrossSigningKey, DeviceKeys},
        serde::Raw,
        OwnedDeviceId, OwnedUserId,
    };

    ruma_api! {
        metadata: {
            description: "Returns the current devices and identity keys for the given users.",
            method: POST,
            name: "get_keys",
            stable_path: "/_matrix/federation/v1/user/keys/query",
            rate_limited: false,
            authentication: ServerSignatures,
            added: 1.0,
        }

        request: {
            /// The keys to be downloaded.
            ///
            /// Gives all keys for a given user if the list of device ids is empty.
            pub device_keys: BTreeMap<OwnedUserId, Vec<OwnedDeviceId>>,
        }

        #[derive(Default)]
        response: {
            /// Keys from the queried devices.
            pub device_keys: BTreeMap<OwnedUserId, BTreeMap<OwnedDeviceId, Raw<DeviceKeys>>>,

            /// Information on the master cross-signing keys of the queried users.
            #[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
            pub master_keys: BTreeMap<OwnedUserId, Raw<CrossSigningKey>>,

            /// Information on the self-signing keys of the queried users.
            #[serde(default, skip_serializing_if = "BTreeMap::is_empty")]
            pub self_signing_keys: BTreeMap<OwnedUserId, Raw<CrossSigningKey>>,
        }
    }

    impl Request {
        /// Creates a new `Request` asking for the given device keys.
        pub fn new(device_keys: BTreeMap<OwnedUserId, Vec<OwnedDeviceId>>) -> Self {
            Self { device_keys }
        }
    }

    impl Response {
        /// Creates a new `Response` with the given device keys.
        pub fn new(
            device_keys: BTreeMap<OwnedUserId, BTreeMap<OwnedDeviceId, Raw<DeviceKeys>>>,
        ) -> Self {
            Self { device_keys, ..Default::default() }
        }
    }
}