Relay/RelayServer/Endpoints/RtcEndpoints.cs

using RelayServer.Models.Rtc;
using RelayServer.Services.Rtc;

namespace RelayServer.Endpoints;

public static class RtcEndpoints
{
    public static void MapRtcEndpoints(this WebApplication app)
    {
        app.MapPost("/api/rtc/join", async (RtcJoinRequest request, RtcCallService rtcCallService) =>
        {
            return Results.Ok(await rtcCallService.JoinCallAsync(request.ChannelId, request.Username));
        });

        app.MapPost("/api/rtc/offer", async (RtcOffer request, RtcCallService rtcCallService) =>
        {
            await rtcCallService.WriteOfferAsync(request.ChannelId, request.Username, request.Sdp);
            return Results.Ok();
        });
        //TODO: Add call for if channelId has active call returning boolean value
        app.MapGet("/api/rtc/offer/{channelId}", async (string channelId, RtcCallService rtcCallService) =>
        {
            var offer = await rtcCallService.GetOfferAsync(channelId);
            return offer is null ? Results.NotFound() : Results.Ok(offer);
            //TODO: Needs to include offer data as JSON
        });

        app.MapPost("/api/rtc/answer", async (RtcAnswer request, RtcCallService rtcCallService) =>
        {
            await rtcCallService.WriteAnswerAsync(request.ChannelId, request.OfferUser, request.AnswerUser, request.Sdp);
            //TODO: Add call to clients already in call that a new answer has been made with answer details
            return Results.Ok();
        });

        app.MapGet("/api/rtc/answers/{channelId}", async (string channelId, RtcCallService rtcCallService) =>
        {
            return Results.Ok(await rtcCallService.GetAnswersAsync(channelId));
        });

        app.MapPost("/api/rtc/candidate", async (RtcIceCandidate request, RtcCallService rtcCallService) =>
        {
            await rtcCallService.WriteIceCandidateAsync(
                request.ChannelId,
                request.Username,
                request.Candidate,
                request.SdpMid,
                request.SdpMLineIndex,
                request.Direction
            );
            //TODO: Add call to clients already in call that a new ICE candidate has been made with ICE candidate details

            return Results.Ok();
        });

        app.MapGet("/api/rtc/candidates/{channelId}", async (string channelId, RtcCallService rtcCallService) =>
        {
            return Results.Ok(await rtcCallService.GetIceCandidatesAsync(channelId));
        });

        app.MapPost("/api/rtc/leave", async (RtcLeaveRequest request, RtcCallService rtcCallService) =>
        {
            await rtcCallService.LeaveCallAsync(request.ChannelId, request.Username);
            return Results.Ok();
        });
    }
}