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//! Types for the *m.call.candidates* event.

use js_int::UInt;
use ruma_events_macros::ruma_event;
use serde::{Deserialize, Serialize};

ruma_event! {
    /// This event is sent by callers after sending an invite and by the callee after answering.
    /// Its purpose is to give the other party additional ICE candidates to try using to
    /// communicate.
    CandidatesEvent {
        kind: RoomEvent,
        event_type: "m.call.candidates",
        content: {
            /// The ID of the call this event relates to.
            pub call_id: String,

            /// A list of candidates.
            pub candidates: Vec<Candidate>,

            /// The version of the VoIP specification this messages adheres to.
            pub version: UInt,
        },
    }
}

/// An ICE (Interactive Connectivity Establishment) candidate.
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "camelCase")]
pub struct Candidate {
    /// The SDP "a" line of the candidate.
    pub candidate: String,

    /// The SDP media type this candidate is intended for.
    pub sdp_mid: String,

    /// The index of the SDP "m" line this candidate is intended for.
    pub sdp_m_line_index: UInt,
}