#include <stdbool>

/**
  * @brief  Мониторинг бита LainFail
  */

void UPS_LineFailMonitor(void)
{
	static bool isValueRecv = false;
	static uint8_t lineFailOldState = 0;
	uint8_t lineFailCurrent;
	char log_string[50];
	uint8_t len;

	lineFailCurrent = ((UPS.Status >> 7) & 0x01);
	lineFailCurrent |= UPS_VACinputRangeAlarm();

    // Заходит в условие только 1 раз.
	if (!isValueRecv) {
		isValueRecv = true;
		lineFailOldState = lineFailCurrent;

	    if (lineFailCurrent != 0) {
		    memset(log_string, 0, sizeof(log_string));
		    strcat(log_string, "Авария");
		    len = strlen(log_string);
		    sprintf(&log_string[len], " (%0.1f В)", UPS.VAC_in);
		    log_event_data(LOG_ALARM_LINE, log_string);
	        SNMP_SendUserTrap(LINE_ALARM);
		    syslog(SYSLOG_ERROR, "Авария сети (%0.1f В)", UPS.VAC_in);
		    flUpdateLog = true;
		}
	    else {
		    log_event_data(LOG_ALARM_LINE, "Норма");
		    SNMP_SendUserTrap(LINE_NORM);
		    syslog(SYSLOG_NOTICE, "Сеть в норме (%0.1f В)", UPS.VAC_in);
		    flUpdateLog = true;
	    }
	    return;
	}
	
	if (lineFailCurrent != 0) {
	    flCriticalAlarm = true;
	    flLedAlarm = true;
	}

	// Значение параметра изменилось
	if (lineFailCurrent != lineFailOldState)
	{
	    if (lineFailCurrent != 0) {
		    memset(log_string, 0, sizeof(log_string));
		    strcat(log_string, "Авария");
		    len = strlen(log_string);
	        sprintf(&log_string[len], " (%0.1f В)", UPS.VAC_in);  
	        log_event_data(LOG_ALARM_LINE, log_string);
	        SNMP_SendUserTrap(LINE_ALARM);
	        syslog(SYSLOG_ERROR, "Авария сети (%0.1f В)", UPS.VAC_in);
		    flUpdateLog = true;
	    }
	    else {
		    if (UPS.VAC_in == 0) {
		        return;
		    }
		    log_event_data(LOG_ALARM_LINE, "Норма");
		    SNMP_SendUserTrap(LINE_NORM);
		    syslog(SYSLOG_NOTICE, "Сеть в норме (%0.1f В)", UPS.VAC_in);
		    flUpdateLog = true;
	    }
	}
	lineFailOldState = lineFailCurrent;
}


uint8_t UPS_VACinputRangeAlarm(void)
{
    uint8_t flag = 0;
    static uint8_t stateCurrentVACinput_low = HYST_IDLE;
    static uint8_t stateCurrentVACinput_high = HYST_IDLE;
    float VACinputCurrent = UPS.VAC_in;
    static uint8_t cnt = 0;
    
    if (test_akb_flag) {
        if (UPS.VAC_in > 255) {
            test_akb_flag = false;
            cnt = 0;
            ups_metac_service_pdu(ups_cancel_test);
            log_event_data(LOG_TEST_UPS, "Ошибка");
        } 
        else {
            if (cnt < 20){
                cnt++;
            } 
            else {
                if (UPS.Mode == 'L') {
                    test_akb_flag = false;
                }
                cnt = 0;
            }
        }
    }

    /* Отслеживается переход через нижнию границу */
    if (VACinputCurrent < sSettings.sAlarmManager.ac_input_range.low)
    {
        if (stateCurrentVACinput_low == HYST_IDLE || stateCurrentVACinput_low == HYST_DOWN) {
            stateCurrentVACinput_low = HYST_DOWN;
            flag |= (1 << 1);
        }
        } 
        else if (VACinputCurrent > (sSettings.sAlarmManager.ac_input_range.low + sSettings.sAlarmManager.ac_input_range.hyst))
        {
            if (stateCurrentVACinput_low == HYST_DOWN)
	        {
                stateCurrentVACinput_low = HYST_IDLE;
                flag &= 0xfd;
            }
        } 
        else {
            if (stateCurrentVACinput_low == HYST_DOWN) {
                flag |= (1 << 1);
        }
    }

    /* Отслеживается переход через верхнюю границу */
    if (VACinputCurrent > sSettings.sAlarmManager.ac_input_range.high)
    {
        if (stateCurrentVACinput_high == HYST_IDLE || stateCurrentVACinput_high == HYST_UP) {
            stateCurrentVACinput_high = HYST_UP;
            flag |= (1 << 2);
        }
    } 
    else if (VACinputCurrent < (sSettings.sAlarmManager.ac_input_range.high - sSettings.sAlarmManager.ac_input_range.hyst))
    {
        if (stateCurrentVACinput_high == HYST_UP)
	    {
            stateCurrentVACinput_high = HYST_IDLE;
            flag &= 0xfb;
        }
    } 
    else {
        if (stateCurrentVACinput_high == HYST_UP) {
            flag |= (1 << 2);
        }
    }
    return flag;
}