using AZKiServer.Models;
using AZKiServer.RPC;

using Google.Protobuf;

using Grpc.Core;

namespace AZKiServer.Services;
public class AZKiRpcService(MediaService mediaService) : RPC.AZKi.AZKiBase
{
	public override async Task<MediaList> GetMediaEntriesInRange(MediaRangeRequest request, ServerCallContext context)
	{
		var from = request.From.ToDateTime();
		var to = request.To.ToDateTime();
		var items = await mediaService.GetEntriesInRangeAsync(request.Type.FromRpc(), from, to);

		var result = new MediaList();
		result.Entries.AddRange(items.Select(e => e.ToRpc()));
		return result;
	}

	public override async Task<PlaybackInfo> GetMediaPlayback(MediaPlaybackRequest request, ServerCallContext context)
	{
		var from = request.Date.ToDateTime().Date;
		var to = request.Date.ToDateTime().Date.AddDays(1);
		var items = await mediaService.GetEntriesInRangeAsync(Models.MediaType.All, from, to);
		var channels = items.GroupBy(i => i.CameraId).Select(c =>
		{
			var images = c.Where(m => m.Type == Models.MediaType.Image).Select(m => m.ToRpc());
			var videos = c.Where(m => m.Type == Models.MediaType.Video).Select(m => m.ToRpc());
			var result = new MediaChannel
			{
				CameraId = c.Key,
			};
			result.Images.AddRange(images);
			result.Videos.AddRange(videos);
			return result;
		});
		var playback = new PlaybackInfo
		{
			Date = Google.Protobuf.WellKnownTypes.Timestamp.FromDateTime(from),
		};
		playback.Channels.AddRange(channels);
		return playback;
	}
}