#ifndef _CALENDAR_H_
#define _CALENDAR_H_

#include <ctime>
#include <fstream>
#include <iostream>
#include <math.h>
#include <string>
#include <vector>
using namespace std;

extern double pi;
extern double delta;
extern char jieqi[25][10];

typedef struct tm Date;
struct point {
    int year, mon, day, hour, min, sec;
    bool isShuo, isJieqi, isZhongqi;
    int JieqiIndex, MonthIndex;
    bool RunYue;
    double time;
    point *next;

    point(int year, int mon, int day, int hour, int min, int sec, bool isShuo,
          bool isJieqi, bool isZhongqi, int JieqiIndex, int MonthIndex,
          bool RunYue, double time) {
        this->year = year;
        this->mon = mon;
        this->day = day;
        this->hour = hour;
        this->min = min;
        this->sec = sec;
        this->isShuo = isShuo;
        this->isJieqi = isJieqi;
        this->isZhongqi = isZhongqi;
        this->JieqiIndex = JieqiIndex;
        this->MonthIndex = MonthIndex;
        this->RunYue = RunYue;
        this->time = time;
        this->next = NULL;
    }
};

class Julian {
  private:
    static double d[23][5];

    double dt_ext(int y, double jsd);

    //计算力学时与世界时之差,传入年份
    double delta_t(int y);

  public:
    // 计算儒略日
    double getJulianDay(time_t time);

    // 计算儒略千年数
    double getJulianKiloYear(time_t time);

    //儒略千年数转时间戳
    time_t kiloYearToTime(double t, int year);
};

class parameter {
  private:
    // 计算地球日心黄经
    double get_longitude(vector<double> l, double t);

    // 计算地球日心黄纬
    double get_latitude(vector<double> b, double t);

    double get_R(vector<double> r, double t);

    // 转换FK5误差，返回弧度制
    double delta_FK5(double L, double B, double T);

    //获取章动有关角
    vector<double> get_angle(double T);

    //章动修正
    double nutation(double T);

    //光行差修正，返回弧度制
    double aberration(double R);

    // 获取地日运行参数，L为地球日心黄经，B为地球日心黄纬，R为地日距离
    vector<vector<double>> get_parameters(double t);

  public:
    double sun_longitude(double t);

    double moon_longitude(double t);
};

class List {
  private:
    point *head, *tail; //链表头尾指针

    bool later(point *a, point *b);

  public:
    vector<point *> shuori_vec;  //记录各朔日的地址
    vector<point *> zhongqi_vec; //记录各中气的地址

    List();
    ~List();

    // 链表尾部插入
    void append(Date *date, bool isShuo, bool isJieqi, bool isZhongqi,
                int JieqiIndex, double time);

    //对链表进行“排序”
    void lunar_sort();

    //置闰月
    void Run();

    //输出链表内容
    void output();
};

#endif