#ifndef SCHEDULE_HPP_
#define SCHEDULE_HPP_

#include <iostream>
#include <map>
#include <unordered_set>
#include <vector>
#include <stdint.h>
#include <boost/container/detail/singleton.hpp>

#define SCHEDULE_CONFIG "./schedule_test.json"
#define BASE_RELATION   "./base_relation.json"
#define CONFIG_UPDATE   "./config_update.json"
#define UPGRADE_CONFIG  "./upgrade.json"


typedef enum {
    kScheduleResultNone = 0,
    kScheduleUnknownSensor = 1,
    kScheduleConfigSensor = 2,
    kScheduleEigenValue = 3,
    kScheduleWaveForm = 4,    
    kScheduleUpgrade = 5,
    kScheduleWrongTime = 6
} ScheduleResult;

typedef struct {
    int try_times;
    std::string sensor_type;
    int hw_version;
    std::string current_sw_version;
    std::string upgrade_sw_version;
    std::string submit_time;
    std::vector<std::string> try_world_time1;
} UpgradeInfo;

class SensorScheduler {
public:
    SensorScheduler();
    int Init();
    int StartSchedule(int pan_id, int &next_duration);

    long CalcNextTimestamp(int id);

    int Config(int eigen_value_send_interval, int wave_form_send_interval,
               int eigen_value_send_duration, int wave_form_send_duration,
               int max_sensor_num);

    int CalcAvailableSlice(int eigen_value_send_interval, int wave_form_send_interval,
                           int eigen_value_send_duration, int wave_form_send_duration,
                           int max_sensor_num, int &available_slice, int &free_slice);

    void GetSensorTs(int pan_id, long &eigen_ts, long &wave_ts);

    // ======schedule.json操作开始======
    // 无线网关程序重启时
    // void ReadScheduleCfg();
    // 配置完成后
    int WriteScheduleCfg(long &ts, std::string &world_time);
    // 当系统进行校时时，修改时间戳信息, "slices"字段
    void ModifyScheduleTs(long start_ts);
    // 当接入传感器时，设置为不可修改; 当停用所有传感器后，修改为可修改
    void AdjustSupportModification(bool support_modification);    
    // ======schedule.json操作结束======

    long GetLocalTs();
    long GetLocalWorldTime(std::string &world_time);
    std::string GetUTCTime(long ts);
    int GetAvailableId(int pan_id);

private:

    // user config
    int eigen_value_send_interval_;
    int eigen_value_send_duration_;
    int wave_form_send_interval_;
    int wave_form_send_duration_;
    int max_sensor_num_;   

    // calc result
    long start_timestamp_;
    std::string start_ts_str_;
    int available_slice_;
    int free_slice_;
    int wave_slice_num_per_eigen_interval_; // 每个特征值窗口中有几个波形发送窗口
    int seconds_per_wave_slice_; // 波形窗口时长
    int eigen_value_slice_total_seconds_; // 特征值窗口总时长
    std::vector<int> slice_sensor_id_; // 每个时间窗是哪个传感器使用的
    
    bool support_modification_;
    std::map<int, int> sensor_id_nth_slice_; // 传感器编号与第几个波形发送窗口对应关系
    std::map<uint16_t, int> short_addr_map_; // base_relation.json

    // 空闲时间戳被占用
    std::unordered_set<long> free_slice_ocuppied_;

    // sensor config update
    std::unordered_set<int> update_;

    // sensor upgrade
    std::map<int, UpgradeInfo> upgrade_;

    // temp variables
    long current_ts_;  // 当前时间戳
    long current_wave_start_ts_; // 当前所在的波形发送间隔的开始时间戳
    long nth_wave_start_slice_; // 第几个波形发送窗口
    long seconds_in_current_wave_slice_; // 时间戳相对波形开始时间戳的秒数
    int nth_eigen_value_slice_; // 第几个特征值发送窗口
    int seconds_in_current_eigen_slice_; // 相对特征值发送间隔的秒数
    bool ts_in_eigen_slice_; // 时间位于特征值发送窗口中
    int nth_eigen_slice_; // 如果ts_in_eigen_slice_是真的话，此值表明是第几个特征值窗口
    bool nth_wave_slice_; // 如果ts_in_eigen_slice_是假的话，此值表明是第几个波形窗口

    int current_request_;
};

typedef boost::container::dtl::singleton_default<SensorScheduler> scheduler;

#endif // SCHEDULE_HPP_