using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WeldingCommon.Utils
{
    public class ChangeChecker
    {
        private static Dictionary<string, bool> mapping = new Dictionary<string, bool>();
        public static bool IsChangedBool(string Resource, bool value, bool defaultVal = false)
        {
            if (mapping.ContainsKey(Resource) == false) {
                mapping[Resource] = defaultVal;
                return false;
            }

            if (mapping[Resource] == value) {
                return false;
            }

            mapping[Resource] = value;
            return true;
        }
        public static bool IsChangedBoolMonitoring(string Resource, bool value, bool MonitoringValue, bool defaultVal = false)
        {
            if (mapping.ContainsKey(Resource) == false) {
                mapping[Resource] = defaultVal;
                return false;
            }

            if (mapping[Resource] == value) {
                return false;
            }

            mapping[Resource] = value;

            if(mapping[Resource] == MonitoringValue)
                return true;

            return false;
        }

        private static Dictionary<string, int> mappingInt = new Dictionary<string, int>();
        public static bool IsChangedInt(string Resource, int value, int defaultVal = 0)
        {
            if (mappingInt.ContainsKey(Resource) == false) {
                mappingInt[Resource] = defaultVal;
                return false;
            }

            if (mappingInt[Resource] == value) {
                return false;
            }

            mappingInt[Resource] = value;
            return true;
        }

        public static bool IsChangedInt(string Resource, int value, out int prevalue, int defaultVal = 0)
        {
            if (mappingInt.ContainsKey(Resource) == false) {
                mappingInt[Resource] = defaultVal;
                prevalue = mappingInt[Resource];
                return false;
            }

            if (mappingInt[Resource] == value) {
                prevalue = value;
                return false;
            }

            prevalue = mappingInt[Resource];
            mappingInt[Resource] = value;
            return true;
        }
    }
}