using System.Collections.Generic;
using BattSim.Models;

namespace BattSim.Services
{
    public class BatterySimulator
    {
        public static List<BatteryDayResult> SimulateBattery(List<EnergyData> data, double batteryCapacity)
        {
            var results = new List<BatteryDayResult>();
            double remainingEnergy = 0;
            
            foreach (var day in data)
            {
                // Charge battery from production
                var totalProduction = day.DayProduction + day.NightProduction;
                var chargedEnergy = System.Math.Min(totalProduction, batteryCapacity);
                var excessProduction = totalProduction - chargedEnergy;
                
                // Use battery for consumption
                var totalConsumption = day.DayConsumption + day.NightConsumption;
                var usedEnergy = System.Math.Min(chargedEnergy + remainingEnergy, totalConsumption);
                var remainingAfterUse = chargedEnergy + remainingEnergy - usedEnergy;
                
                // Calculate reduced values
                var reducedConsumption = System.Math.Min(usedEnergy, totalConsumption);
                var reducedProduction = totalProduction - chargedEnergy;
                
                results.Add(new BatteryDayResult
                {
                    Date = day.Date,
                    ChargedEnergy = chargedEnergy,
                    UsedEnergy = usedEnergy,
                    RemainingEnergy = remainingAfterUse,
                    ReducedConsumption = reducedConsumption,
                    ReducedProduction = reducedProduction
                });
                
                remainingEnergy = remainingAfterUse;
            }
            
            return results;
        }
    }
}