HamBook – Rev 21

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using HamBook.Radios.Generic;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO.Ports;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
using static HamBook.Radios.Yaesu.FT_891.Constants;
using RJCP.IO.Ports;

namespace HamBook.Radios.Yaesu.FT_891.CAT
{
    [Radio("Yaesu FT-891")]
    public class AI : Generic.CAT.AI
    {
        private readonly Regex readRegex;

        public override CatLength CatLength => new CatLength { Set = 4, Read = 3, Answer = 4 };

        public AI(SerialPortStream serialPort) : base(serialPort)
        {
            readRegex = new Regex($"^{Name}(?<state>[01]){Generic.Constants.EOT}$", RegexOptions.Compiled);
        }

        public override InformationState Read()
        {
            SerialPort.Write($"{Name}{Generic.Constants.EOT}");
            var buffer = new byte[CatLength.Answer];
            if (SerialPort.Read(buffer, 0, CatLength.Answer) != CatLength.Answer)
            {
                throw new UnexpectedRadioResponseException(Name, buffer);
            }

            var answer = Constants.Encoding.GetString(buffer);
            var match = readRegex.Match(answer);
            if (!match.Success)
            {
                throw new UnmatchedRadioResponseException(Name, answer);
            }
            var state = (InformationState)int.Parse(match.Result("${state}"));

            return state;
        }
        public override async Task<InformationState> ReadAsync(CancellationToken cancellationToken)
        {
            var payload = Constants.Encoding.GetBytes($"{Name}{Generic.Constants.EOT}");
            await SerialPort.WriteAsync(payload, 0, payload.Length, cancellationToken);
            var buffer = new byte[CatLength.Answer];
            if (await SerialPort.ReadAsync(buffer, 0, CatLength.Answer, cancellationToken) != CatLength.Answer)
            {
                throw new UnexpectedRadioResponseException(Name, buffer);
            }

            var answer = Constants.Encoding.GetString(buffer);
            var match = readRegex.Match(answer);
            if (!match.Success)
            {
                throw new UnmatchedRadioResponseException(Name, answer);
            }

            var state = (InformationState)int.Parse(match.Result("${state}"));
            return state;
        }

        public override bool Set(InformationState state)
        {
            SerialPort.Write($"{Name}{(int)state}{Generic.Constants.EOT}");
            return Read() == state;
        }
        public override async Task<bool> SetAsync(InformationState state, CancellationToken cancellationToken)
        {
            var payload = Constants.Encoding.GetBytes($"{Name}{(int)state}{Generic.Constants.EOT}");
            await SerialPort.WriteAsync(payload, 0, payload.Length, cancellationToken);
            return await ReadAsync(cancellationToken) == state;
        }

        public override Information Parse(string input)
        {
            var match = InformationRegex.Match(input);

            if(!match.Success)
            {
                throw new UnmatchedRadioResponseException(Name, input);
            }

            var radioBank = int.Parse(match.Result("${radioBank}"));
            var frequency = int.Parse(match.Result("${frequency}"));
            var clarifierDirection = char.Parse(match.Result("${clarifierDirection}"));
            var clarifierOffset = int.Parse(match.Result("${clarifierOffset}"));
            var clar = int.Parse(match.Result("${clar}")) == 0 ? false : true;
            var radioMode = char.Parse(match.Result("${mode}"));
            var storage = match.Result("${storage}");
            var ctcssMode = match.Result("${ctcssMode}");
            var phase = match.Result("${phase}");

            var information = new Information
            {
                RadioBank = radioBank,
                Frequency = frequency,
                ClarifierDirection = clarifierDirection,
                ClarifierOffset = clarifierOffset,
                Clar = clar,
                RadioMode = radioMode,
                Storage = storage,
                CtcssMode = ctcssMode,
                Phase = phase
            };

            return information;
        }

        public override void Write(InformationState state)
        {
            SerialPort.Write($"{Name}{(int)state}{Generic.Constants.EOT}");
        }

        public override async Task WriteAsync(InformationState state, CancellationToken cancellationToken)
        {
            var payload = Constants.Encoding.GetBytes($"{Name}{(int)state}{Generic.Constants.EOT}");

            await SerialPort.WriteAsync(payload, 0, payload.Length, cancellationToken);
        }
    }
}