#ifndef __CLASS_MYSQL_MONITOR_H
#define __CLASS_MYSQL_MONITOR_H
//#include <thread>
//#include <list>
//#include "btree_map.h"
#include "proxysql.h"
#include "cpp.h"

#define MONITOR_SQLITE_TABLE_MYSQL_SERVER_CONNECT "CREATE TABLE mysql_server_connect (hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , time_since INT NOT NULL DEFAULT 0 , time_until INT NOT NULL DEFAULT 0 , connect_success_count INT NOT NULL DEFAULT 0 , connect_success_first INT NOT NULL DEFAULT 0 , connect_success_last INT NOT NULL DEFAULT 0 , connect_success_time_min INT NOT NULL DEFAULT 0 , connect_success_time_max INT NOT NULL DEFAULT 0 , connect_success_time_total INT NOT NULL DEFAULT 0 , connect_failure_count INT NOT NULL DEFAULT 0 , connect_failure_first INT NOT NULL DEFAULT 0 , connect_failure_last INT NOT NULL DEFAULT 0 , PRIMARY KEY (hostname, port))"

#define MONITOR_SQLITE_TABLE_MYSQL_SERVER_PING "CREATE TABLE mysql_server_ping (hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , time_since INT NOT NULL DEFAULT 0 , time_until INT NOT NULL DEFAULT 0 , ping_success_count INT NOT NULL DEFAULT 0 , ping_success_first INT NOT NULL DEFAULT 0, ping_success_last INT NOT NULL DEFAULT 0 , ping_success_time_min INT NOT NULL DEFAULT 0 , ping_success_time_max INT NOT NULL DEFAULT 0 , ping_success_time_total INT NOT NULL DEFAULT 0 , ping_failure_count INT NOT NULL DEFAULT 0 , ping_failure_first INT NOT NULL DEFAULT 0 , ping_failure_last INT NOT NULL DEFAULT 0 , PRIMARY KEY (hostname, port))"

#define MONITOR_SQLITE_TABLE_MYSQL_SERVER_CONNECT_LOG "CREATE TABLE mysql_server_connect_log (hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , time_start INT NOT NULL DEFAULT 0 , connect_success_time INT DEFAULT 0 , connect_error VARCHAR , PRIMARY KEY (hostname, port, time_start))"

#define MONITOR_SQLITE_TABLE_MYSQL_SERVER_PING_LOG "CREATE TABLE mysql_server_ping_log ( hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , time_start INT NOT NULL DEFAULT 0 , ping_success_time INT DEFAULT 0 , ping_error VARCHAR , PRIMARY KEY (hostname, port, time_start))"

#define MONITOR_SQLITE_TABLE_MYSQL_SERVER_READ_ONLY_LOG "CREATE TABLE mysql_server_read_only_log ( hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , time_start INT NOT NULL DEFAULT 0 , success_time INT DEFAULT 0 , read_only INT DEFAULT 1 , error VARCHAR , PRIMARY KEY (hostname, port, time_start))"

#define MONITOR_SQLITE_TABLE_MYSQL_SERVER_REPLICATION_LAG_LOG "CREATE TABLE mysql_server_replication_lag_log ( hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , time_start INT NOT NULL DEFAULT 0 , success_time INT DEFAULT 0 , repl_lag INT DEFAULT 0 , error VARCHAR , PRIMARY KEY (hostname, port, time_start))"


class MySQL_Monitor_Connection_Pool;

enum MySQL_Monitor_State_Data_Task_Type {
	MON_CONNECT,
	MON_PING,
	MON_READ_ONLY,
	MON_REPLICATION_LAG
};

class MySQL_Monitor_State_Data {
  public:
  MySQL_Monitor_State_Data_Task_Type task_id;
  struct timeval tv_out;
  unsigned long long t1;
  unsigned long long t2;
  int ST;
  char *hostname;
  int port;
  bool use_ssl;
  struct event *ev_mysql;
  MYSQL *mysql;
  struct event_base *base;
  MYSQL_RES *result;
  MYSQL *ret;
  int interr;
  char * mysql_error_msg;
  MYSQL_ROW *row;
  unsigned int repl_lag;
  unsigned int hostgroup_id;
	MySQL_Monitor_State_Data(char *h, int p, struct event_base *b, bool _use_ssl=0);
	~MySQL_Monitor_State_Data();
	int handler(int fd, short event);
	void next_event(int new_st, int status);
	void unregister();
};


class MySQL_Monitor {
	private:
	//unsigned int MySQL_Monitor__thread_MySQL_Thread_Variables_version;
	//MySQL_Thread *mysql_thr;
	std::vector<table_def_t *> *tables_defs_monitor;
	void insert_into_tables_defs(std::vector<table_def_t *> *tables_defs, const char *table_name, const char *table_def);
	void drop_tables_defs(std::vector<table_def_t *> *tables_defs);
	void check_and_build_standard_tables(SQLite3DB *db, std::vector<table_def_t *> *tables_defs);
	public:
	MySQL_Monitor_Connection_Pool *My_Conn_Pool;
	bool shutdown;
	SQLite3DB *admindb;	// internal database
	SQLite3DB *monitordb;	// internal database
	MySQL_Monitor();
	~MySQL_Monitor();
	void print_version();
	void * monitor_connect();
	void * monitor_ping();
	void * monitor_read_only();
	void * monitor_replication_lag();
	void * run();
};

#endif /* __CLASS_MYSQL_MONITOR_H */