using Aurora.Api;
using Hermes;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace VisionCommon {
    internal abstract class Updater {
        protected Logger _logger;
        protected double _machineVersion;
        protected double _swVersion;

        public Updater(string logTag, double machineVersion, double swVersion) {
            _logger = new Logger(logTag);
            _machineVersion = machineVersion;
            _swVersion = swVersion;
        }

        public int Update(JToken machineToken, double machineVersion, double swVersion) {
            if (!IsSupportVersion(machineVersion, swVersion)) {
                return E2.NOT_SUPPORTED;
            }

            if (machineVersion < swVersion) {
                return Upgrade(machineToken);
            }
            else if (swVersion < machineVersion) {
                return Downgrade(machineToken);
            }

            return E1.GENERIC;
        }

        public bool IsSupportVersion(double machineVersion, double swVersion) {
            if (MathUtil.Equals(_machineVersion, machineVersion, 0.01) &&
                MathUtil.Equals(_swVersion, swVersion, 0.01)) {
                return true;
            }
            else if (MathUtil.Equals(_machineVersion, swVersion, 0.01) &&
                MathUtil.Equals(_swVersion, machineVersion, 0.01)) {
                return true;
            }

            return false;
        }

        protected abstract int Upgrade(JToken machineToken);
        protected abstract int Downgrade(JToken machineToken);
    }
}