using EasyPipes;
using SoraV2Tools;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SoraV2Utils_Service
{
    public class DeviceTracker
    {
        public static DeviceTracker Instance;
        private bool BatteryWarningSent = false;
        private bool BatteryCriticalSent = false;
        private bool RechargeCompletedSent = false;
        private Dictionary<DateTime, byte> BatteryStats = new Dictionary<DateTime, byte>();
        public DeviceStatus _DeviceStatus;

        public DeviceTracker() 
        {
            Instance = this;
        }

        public void processMouseData(DeviceStatus deviceStatus) 
        {
            _DeviceStatus = deviceStatus;
            
            if (deviceStatus.Charging == 0)
            {
                BatteryStats.Add(DateTime.Now, deviceStatus.Battery);
                RechargeCompletedSent = false;

                if (deviceStatus.Battery <= ServiceSettings.Instance.criticalThreshold && !BatteryCriticalSent && deviceStatus.Charging != 1)
                {
                    Notification.TwoLine(String.Format("SoraV2 battery is at {0}%",deviceStatus.Battery), "Please recharge now!");
                    BatteryCriticalSent = true;
                }
                else if (deviceStatus.Battery <= ServiceSettings.Instance.warningThreshold && !BatteryCriticalSent && !BatteryWarningSent && deviceStatus.Charging != 1)
                {
                    Notification.TwoLine(String.Format("SoraV2 battery is at {0}%", deviceStatus.Battery), "Please consider recharching.");
                    BatteryWarningSent = true;
                }
            }
            else if (deviceStatus.Charging == 1 && !RechargeCompletedSent)
            {
                BatteryStats.Clear();
                BatteryWarningSent = false;
                BatteryCriticalSent = false;
                RechargeCompletedSent = true;

                if (deviceStatus.Battery == 100)
                {
                    Notification.SingleLine(String.Format("SoraV2 battery fully recharged!"));
                }
            }
        }

        public double CalculateConsumptionRate()
        {
            // Ensure there's enough data to calculate a rate (at least two points)
            if (this.BatteryStats.Count > 2)
            {
                // Get the last two entries in the dictionary
                var latestEntry = this.BatteryStats.Last();
                var previousEntry = this.BatteryStats.ElementAt(this.BatteryStats.Count - 2);

                // Calculate the difference in battery level and time
                double batteryLevelDifference = previousEntry.Value - latestEntry.Value;
                double timeDifferenceMinutes = (latestEntry.Key - previousEntry.Key).TotalMinutes;

                // Calculate consumption rate (percentage per minute)
                return batteryLevelDifference / timeDifferenceMinutes;
            }
            return 0;
        }

        public double EstimateRemainingRuntime()
        {
            if (this.BatteryStats == null || this.BatteryStats.Count < 2)
            {
                return -1;
            }

            var sortedStats = new SortedDictionary<DateTime, byte>(this.BatteryStats);

            double totalConsumptionRate = 0;
            int numberOfIntervals = 0;

            DateTime previousTime = DateTime.MinValue;
            byte previousBatteryLevel = 0;

            // Calculate the average consumption rate per second
            foreach (var entry in sortedStats)
            {
                if (previousTime != DateTime.MinValue)
                {
                    // Calculate the time difference (in seconds)
                    double timeDifferenceInSeconds = (entry.Key - previousTime).TotalSeconds;

                    // Calculate the battery consumption for this interval
                    int batteryDifference = previousBatteryLevel - entry.Value;

                    // Ensure the consumption is positive (in case of rounding errors)
                    if (batteryDifference > 0)
                    {
                        // Calculate consumption rate per second
                        double consumptionRate = batteryDifference / timeDifferenceInSeconds;
                        totalConsumptionRate += consumptionRate;
                        numberOfIntervals++;
                    }
                }

                previousTime = entry.Key;
                previousBatteryLevel = entry.Value;
            }

            // Calculate the average consumption rate
            double averageConsumptionRate = totalConsumptionRate / numberOfIntervals;

            // Get the current battery level (from the last entry in the sorted dictionary)
            byte currentBatteryLevel = sortedStats.Values.Last();

            // Calculate the remaining runtime (in seconds)
            double remainingRuntimeInSeconds = currentBatteryLevel / averageConsumptionRate;

            // Convert seconds to a more human-readable format (hours, minutes, seconds)
            TimeSpan remainingTime = TimeSpan.FromSeconds(remainingRuntimeInSeconds);
            Console.WriteLine($"Estimated remaining battery runtime: {remainingTime.Hours} hours, {remainingTime.Minutes} minutes, {remainingTime.Seconds} seconds.");

            return remainingRuntimeInSeconds;
        }

    }
}