/*********************************************************************************
 *      Copyright:  (C) 2019 LingYun IoT System Studio
 *                  All rights reserved.
 *
 *       Filename:  conf.h
 *    Description:  This file is mqttd configure file parser function
 *                 
 *        Version:  1.0.0(2019年06月25日)
 *         Author:  Guo Wenxue <guowenxue@gmail.com>
 *      ChangeLog:  1, Release initial version on "2019年06月25日 22时23分55秒"
 *                 
 ********************************************************************************/
#ifndef  __CONF_H_
#define  __CONF_H_

enum
{
    Qos0, /* 发送者只发送一次消息，不进行重试，Broker不会返回确认消息。在Qos0情况下，Broker可能没有接受到消息 */
    Qos1, /* 发送者最少发送一次消息，确保消息到达Broker，Broker需要返回确认消息PUBACK。在Qos1情况下，Broker可能接受到重复消息 */
    Qos2, /* Qos2使用两阶段确认来保证消息的不丢失和不重复。在Qos2情况下，Broker肯定会收到消息，且只收到一次  */
};

#define DEF_KEEPALIVE       30
#define DEF_PUBINTERVAL     120
#define DEF_QOS             Qos2

typedef struct hwconf_s 
{
    int            relay;   /* relay aviable or not.   0:Disable  1: Enable */
    int            led;     /* RGB led aviable or not. 0:Disable  1: Enable */
    int            beeper;  /* beeper aviable or not.  0:Disable  1: Enable */
    int            ds18b20; /* DS1B820 aviable or not. 0:Disable  1: Enable */
    int            sht2x;   /* SHT20  aviable or not.  0:Disable  1: Enable */
    int            tsl2561; /* TSL2561 aviable or not.  0:Disable  1: Enable */
} hwconf_t;  


typedef struct mqtt_ctx_s
{
    char          devid[32];    /*  device ID */

    /* hardware configuration */
    hwconf_t      hwconf;

    /* logger settings */
    char          logfile[128]; /* logger record file */
    int           loglevel;     /* logger level  */
    int           logsize;      /* logger file maxsize, oversize will rollback */

    /* Broker settings  */
    char          host[128];  /* MQTT broker server name  */
    int           port;       /* MQTT broker listen port  */
    char          uid[64];    /* username */
    char          pwd[64];    /* password */
    int           keepalive;  /* MQTT broker send PING message to subsciber/publisher keepalive timeout<seconds> */

    /* Publisher settings */
    char          pubTopic[256]; /* Publisher topic  */
    int           pubQos;        /* Publisher Qos */
    int           interval ;     /* Publish sensor data interval time, unit seconds */

    /* Subscriber settings */
    char          subTopic[256]; /* Subscriber topic */
    int           subQos;        /* Subscriber Qos  */
} mqtt_ctx_t;


extern int mqttd_parser_conf(const char *conf_file, mqtt_ctx_t *ctx, int debug);

#endif   /* ----- #ifndef _CONF_H_  ----- */