using Plane.Protocols;
using System.Collections.Generic;
using static Plane.Protocols.MAVLink;

namespace Plane.Copters
{
    public partial class PLCopter
    {
        private void AnalyzeMissionAckPacket(byte[] buffer)
        {
            var packet = buffer.ByteArrayToStructure<mavlink_mission_ack_t>(6);
            _writeMissionListResult = (MAV_MISSION_RESULT)packet.type;
        }

        private void AnalyzeMissionCountPacket(byte[] buffer)
        {
            var packet = buffer.ByteArrayToStructure<mavlink_mission_count_t>(6);
            MissionCount = packet.count;
        }

        private void AnalyzeMissionItemPacket(byte[] buffer)
        {
            var packet = buffer.ByteArrayToStructure<mavlink_mission_item_t>(6);
            var mission = new Mission
            {
                Altitude = packet.z,
                Command = (FlightCommand)packet.command,
                Latitude = packet.x,
                Longitude = packet.y,
                Param1 = packet.param1,
                Param2 = packet.param2,
                Param3 = packet.param3,
                Param4 = packet.param4,
                Sequence = packet.seq
            };
            if (_missionList == null)
            {
                if (mission.Sequence == 0)
                {
                    _missionList = new List<IMission> { mission };
                }
            }
            else if (_missionList.Count > mission.Sequence) _missionList[mission.Sequence] = mission;
            else if (_missionList.Count == mission.Sequence) _missionList.Add(mission);
            RaiseMissionItemReceived(new MissionItemReceivedEventArgs(mission));
        }

        private void AnalyzeMissionRequestPacket(byte[] buffer)
        {
            var packet = buffer.ByteArrayToStructure<mavlink_mission_request_t>(6);
            _copterRequestingMissionSeq = packet.seq;
        }

        private void AnalyzeSetPairPacket(byte[] buffer)
        {
            IsPairing = false;
            var packet = buffer.ByteArrayToStructure<mavlink_set_pair_t>(6);
            RaisePairingCompleted(new PairingCompletedEventArgs(packet.pair == 1, packet.RxID, packet.TxID));
        }
    }
}