//仿真时间单独计时
using System.IO;

public class Fire
{
    public class Aircraft
    {
        public string f_model { get; set; }           //机型
        public string f_type { get; set; }            //飞机种类
        public double f_zsl { get; set; }      //载水量；前端给出
        public double f_mhd { get; set; }      //灭火弹数量；前端给出
        public double f_mhdarea { get; set; }      //单个灭火弹喷洒面积；前端给出
    }
    
    public class FireGrid
    {
        public double Time;
        public double FireGrids;
        public double FiredGrids;
    }

    //随机数X：0到1
    public static double GenerateRandomNumber()
    {
        Random random = new Random();
        double randomNumber = random.NextDouble();
        return randomNumber;
    }
    //小型直升机洒水概率(IP*POS)
    public static double SAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.72 + 0.01 * Math.Exp(exponent);
        double result = POS * 1;
        return POS;
    }
    //中型直升机洒水概率
    public static double MAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.8 + 0.1 * Math.Exp(exponent);
        double result = POS * 0.93;
        return POS;
    }
    //大型直升机
    public static double LAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.62 + 0.2 * Math.Exp(exponent);
        double result = POS * 0.87;
        return POS;
    }
    //多引擎水陆两栖飞机
    public static double MultiAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.72 + 0.16 * Math.Exp(exponent);
        double result = POS * 1;
        return POS;
    }
    //单引擎水陆两栖飞机
    public static double AmAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.88 + 0.02 * Math.Exp(exponent);
        double result = POS * 1;
        return POS;
    }
    //单引擎灭火飞机
    public static double SEAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.53 + 0.27 * Math.Exp(exponent);
        double result = POS * 0.8;
        return POS;
    }
    //大型灭火飞机
    public static double LFAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.53 + 0.27 * Math.Exp(exponent);
        double result = POS * 0.74;
        return POS;
    }
    //超大型灭火飞机
    public static double ULFAirProbability(double sigma = 1)
    {
        double x = GenerateRandomNumber();
        double exponent = -Math.Pow(x, 2) / (2 * Math.Pow(sigma, 2));
        double POS = 0.53 + 0.27 * Math.Exp(exponent);
        double result = POS * 0.76;
        return POS;
    }
    //灭火弹有效洒水面积
    public static double grenadeArea(double f_mhd, double f_mhdarea)
    {
        double _grenadeArea = f_mhd * f_mhdarea * 0.9;
        return _grenadeArea;
    }

    //吊桶水箱有效洒水面积
    public static double SprinklerArea(string type, double f_zsl, double sigma = 1)
    {
        double _f_zsl = 0;
        double _sprinklerArea = 0;

        switch (type)
        {
            case "大型直升机":
                double probability1 = LAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability1;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "中型直升机":
                double probability2 = MAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability2;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "小型直升机":
                double probability3 = SAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability3;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "多引擎水陆两栖飞机":
                double probability4 = MultiAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability4;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "单引擎水陆两栖飞机":
                double probability5 = AmAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability5;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "单引擎灭火飞机":
                double probability6 = SEAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability6;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "大型灭火飞机":
                double probability7 = LFAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability7;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            case "超大型灭火飞机":
                double probability8 = ULFAirProbability(sigma) * AirdropAccuracy.GetIpForType(type);
                _f_zsl = f_zsl * probability8;
                _sprinklerArea = _f_zsl / 1.8;
                break;
            default:
                break;
        }
        return _sprinklerArea;
    }
    //地面人员灭火有效面积
    //任务开始后，每一批次人员相当于一架飞机，每半小时灭火面积相当于一次洒水面积
    //地面部署人员、机降人员到达时间、介入人数（王子涵传入）
    public static double groundPersonnelWater(int num)
    {
        // 灭火火线长度
        double PL;
        // 10分钟洒水火线长度      
        PL = 0.16 * num * 55;
        // 10分钟灭火面积
        double result = PL * 5;
        return result;
    }

    public class CountArea
    {
        public double burncount { get; set; }           //火焰蔓延网格数
        public double burnarea { get; set; }            //火焰蔓延面积
    }

    /// <summary>
    /// 火焰蔓延计算方法，第一次洒水前是仿真时间
    /// </summary>
    /// <param name="wind">风速</param>
    /// <param name="slope">坡度</param>//与风向相关
    /// <param name="vegetation">植被类型</param> //1~11
    /// <param name="Weather_T">天气温度</param> //前端给出 
    /// <param name="time">飞机仿真时间/s</param>
    /// <param name="burnarea">上一次洒水后的面积</param>
    /// <param name="tn">本次洒水时间</param>
    /// <param name="tn_1">上一次洒水时间</param>
    /// <param name="InitialArea">初始输入火场面积</param>
    /// <returns></returns>
    ///"1 针叶林","2 针阔叶混交林","3 阔叶林", "4 灌丛", "5 荒漠","6 草原", "7 草丛","8 草甸","9 沼泽","10 高山植被","11 栽培植被","0 无植被" 
    ///
    public class VegetationCalculator
    {
        // 定义一个字典来存储每个 vegetation 数值对应的 KS 和 KW 计算公式
        private static readonly Dictionary<int, Func<double, double, (double KS, double KW)>> vegetationFormulas =
            new Dictionary<int, Func<double, double, (double KS, double KW)>>()
            {
            { 1, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.8*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 2, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.9*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 3, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 4, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.5*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 5, (radians, wind) => (0,0) },
            { 6, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.3*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 7, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.3*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 8, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.3*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 9, (radians, wind) => (0,0) },
            { 10, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.85*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 11, (radians, wind) => (0.1127 * Math.Pow(Math.Tan(radians), 2), 0.4*0.422 * Math.Pow((3.284 * wind), 0.381)) },
            { 0, (radians, wind) => (0,0) }
            };

        public static (double KS, double KW) Calculate(int vegetation, double radians, double wind)
        {
            if (vegetationFormulas.TryGetValue(vegetation, out var formula))
            {
                return formula(radians, wind);
            }
            else
            {
                throw new ArgumentException("Invalid vegetation value");
            }
        }
    }

    //输入初始火场面积，计算已蔓延时间
    public static double InitialburnTime(double wind, double slope, int vegetation, double Weather_T, double InitialArea)
    {
        double count = InitialArea / 400;
        double radians = slope * (Math.PI / 180); // 将角度转换为弧度

        // 根据 vegetation 计算 KS 和 KW
        var (KS, KW) = VegetationCalculator.Calculate(vegetation, radians, wind);

        double time = (count / (0.04 * Weather_T * KS * KW) + 9.06) / 0.3052;
        return time ;
    }
    
    
    public static CountArea burnCalculate(double wind, double slope, int vegetation, double Weather_T, double time, double burnarea, double tn, double tn_1, double InitialArea)
    {
        double x = GenerateRandomNumber();
        if (wind == 0) wind = 1;
        if (slope < 16) slope = 16;
        if (slope > 45) slope = 45;
        if (burnarea == 0)
        {
            if (InitialArea > 0) time = InitialburnTime(wind, slope, vegetation, Weather_T, InitialArea) + time;
        }
        else
        {
            //上一次洒水后面积计算得到的时间，加上两次洒水间隔
            time = InitialburnTime(wind, slope, vegetation, Weather_T, burnarea) + (tn - tn_1);
        }
        double radians = slope * (Math.PI / 180); // 将角度转换为弧度
        var (KS, KW) = VegetationCalculator.Calculate(vegetation, radians, wind);
        double count = 0.04 * Weather_T * KS * KW * (0.3052 * time - 9.06);
        double area = count * 400;
        return new CountArea { burncount = count, burnarea = area };
    }



    /// <summary>
    /// 燃尽面积计算输出公式
    /// </summary>
    /// <param name="wind">风速</param>
    /// <param name="slope">坡度</param>//与风向相关
    /// <param name="vegetation">植被类型</param> //1~11
    /// <param name="Weather_T1">初始天气温度</param> //前端给出
    /// <param name="Weather_T_ave">从开始到结束的天气温度均值</param> //数据库读取
    /// <param name="time">任务耗时</param>
    /// <param name="InitialArea">初始输入火场面积</param>
    /// <returns></returns>
    /// "1 针叶林","2 针阔叶混交林","3 阔叶林", "4 灌丛", "5 荒漠","6 草原", "7 草丛","8 草甸","9 沼泽","10 高山植被","11 栽培植被","0 无植被" 
    public class VegetationCalculatored
    {
        // 定义一个字典来存储每个 vegetation 数值对应的 KS 和 KW 计算公式
        private static readonly Dictionary<int, Func<double, double, (double KS, double KW)>> vegetationFormulas =
            new Dictionary<int, Func<double, double, (double KS, double KW)>>()
            {
            { 1, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 0.8*0.8*0.438 * Math.Pow((3.284 * wind), 0.381)) },
            { 2, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 0.9*0.8*0.438 * Math.Pow((3.284 * wind), 0.381))  },
            { 3, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 0.8*0.438 * Math.Pow((3.284 * wind), 0.381))  },
            { 4, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 0.5*0.8*0.438 * Math.Pow((3.284 * wind), 0.381))  },
            { 5, (radians, wind) => ((0,0)) },
            { 6, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 1.5*0.8*0.438 * Math.Pow((3.284 * wind), 0.381))  },
            { 7, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 1.5*0.8*0.438 * Math.Pow((3.284 * wind), 0.381))  },
            { 8, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 1.5*0.8*0.438 * Math.Pow((3.284 * wind), 0.381))  },
            { 9, (radians, wind) => (0,0) },
            { 10, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 0.85*0.8*0.438 * Math.Pow((3.284 * wind), 0.381)) },
            { 11, (radians, wind) => (0.8*0.0648 * Math.Pow(Math.Tan(radians), 2), 1.3*0.8*0.438 * Math.Pow((3.284 * wind), 0.381)) },
            { 0, (radians, wind) => (0,0) }
            };

        public static (double KS, double KW) Calculate(int vegetation, double radians, double wind)
        {
            if (vegetationFormulas.TryGetValue(vegetation, out var formula))
            {
                return formula(radians, wind);
            }
            else
            {
                throw new ArgumentException("Invalid vegetation value");
            }
        }
    }

    //每小时都更新天气的火场燃尽面积
    public static CountArea burnedCalculate(double wind, double slope, int vegetation, double Weather_T_ave, double Weather_T1, double time, double InitialArea)
    {
        double x = GenerateRandomNumber();
        if (wind == 0) wind = 1;
        if (slope < 16) slope = 16;
        if (InitialArea > 0) time += InitialburnTime(wind, slope, vegetation, Weather_T1, InitialArea);
        double radians = slope * (Math.PI / 180); // 将角度转换为弧度
        // 根据 vegetation 计算 KS 和 KW
        var (KS, KW) = VegetationCalculatored.Calculate(vegetation, radians, wind);
        double count = 0.04 * Weather_T_ave * KS * KW * (2.5458 *  time - 2999);
        double area = (count) * 400;
        return new CountArea { burncount = count, burnarea = area };
    }
   

    /// <summary>
    /// 过火面积
    /// </summary>
    /// <param name="wind">风速</param>
    /// <param name="slope">破度</param>
    /// <param name="vegetation">植被类型</param>
    /// <param name="Weather_T_ave">平均温度值</param>
    /// <param name="Weather_T1">初始温度值</param>
    /// <param name="time">时间</param>
    /// <param name="InitialArea">初始面积</param>
    /// <param name="waterArea">累计洒水面积</param>
    /// <returns></returns>
    public static double fireCalculate(double wind, double slope, int vegetation, double Weather_T_ave, double Weather_T1, double time, double InitialArea, double waterArea)
    {
        double FireArea = 0;
        CountArea burnedArea = burnedCalculate(wind, slope, vegetation, Weather_T_ave, Weather_T1, time, InitialArea);
        FireArea = burnedArea.burnarea + waterArea;
        return FireArea;
    }
}