#include <unistd.h>
#include <time.h>
#include <stdio.h>
//---------------------------------------------------------------------------
// Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
//
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY,  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES
// OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
// Except as contained in this notice, the name of Dallas Semiconductor
// shall not be used except as stated in the Dallas Semiconductor
// Branding Policy.
//---------------------------------------------------------------------------
//
//  tempC.c -   Application to find and read the 1-Wire Net
//             DS1920/DS1820/DS18S20/DS1822/DS18B20 - temperature measurement.
//
//             This application uses the files from the 'Public Domain'
//             1-Wire Net libraries ('general' and 'userial').
//
//
//  Version: 2.00
//

#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include <time.h>
#include "ownet.h"
#include "temp10.h"
#include "findtype.h"

// defines
#define MAXDEVICES         20

// global serial numbers
uchar FamilySN[MAXDEVICES][8];

// variables
int family_code;

//----------------------------------------------------------------------
// Log results to files whose names are YYYY/MM/DD.
// Files are created with first sample after midnight GMT.
//
int main(int argc, char **argv) {
    float current_temp;
    int i = 0;
    int NumDevices=0;
    int TotalDevs;
    int portnum = 0;
    time_t now, tomorrow = 0;
    struct tm *now_tm;
    const int FNL = 20;
    char fn[FNL];
    int rslt;

    // check for required port name
    if (argc != 2) {
        printf("1-Wire Net name required on command line!\n"
               " (example: \"COM1\" (Win32 DS2480),\"/dev/cua0\" "
               "(Linux DS2480),\"1\" (Win32 TMEX)\n");
        exit(1);
    }

    do // (stops on CTRL-C)
    {

        now = time(0);
        if (now > tomorrow){
            now_tm = gmtime(&now);
            rslt = strftime(fn, FNL, "%Y%m%d", now_tm);
            if (rslt < 0) {
                fprintf(stderr,"Cannot create new logfile name\n");
                exit(-1);
            }
            if ( freopen(fn,"a",stdout) == NULL){
                fprintf(stderr,"Cannot open new logfile\n");
                exit(-1);
            }
            // determine when tomorrow starts
            now_tm = localtime(&now);
            now_tm->tm_mday += 1;
            now_tm->tm_sec = now_tm->tm_min = 0;
            now_tm->tm_hour = now_tm->tm_gmtoff/3600;
            /* *********************************************
            if (now_tm->tm_isdst){
                fprintf(stderr,"adjust for DST\n");
                now_tm->tm_hour -= 1;
            }
            ********************************************* */
            tomorrow = mktime(now_tm);
            fprintf(stderr, "%d\n", tomorrow);
        }

        // attempt to acquire the 1-Wire Net
        while((portnum = owAcquireEx(argv[1])) < 0) {
            OWERROR_DUMP(stderr);
            sleep(1);
        }
        // Find the device(s) DS1820, DS1920
        TotalDevs = NumDevices = FindDevices(portnum, &FamilySN[0], 0x10, MAXDEVICES);
        //fprintf(stderr, "[%d]", NumDevices); fflush(stderr);
        // read the temperature and print serial number and temperature
        for (i = 0; i < NumDevices; i++) {
            if (ReadTemperature(portnum, FamilySN[i],&current_temp)) {
                now = time(0);
                printf("%ld ", now);
                PrintSerialNum(FamilySN[i]);
                printf("     %6.2f \n", current_temp);
                // converting temperature from Celsius to Fahrenheit
            } else {
                printf("     Error reading ");
                PrintSerialNum(FamilySN[i]);
                printf(" temperature, verify device present:%d\n",
                       (int)owVerify(portnum, FALSE));
            }
            fflush(stdout);
            //sleep(1);
        }
        // Find more device(s) DS1822
        TotalDevs += NumDevices = FindDevices(portnum, &FamilySN[0], 0x22, MAXDEVICES);
        //fprintf(stderr, "[%d]", NumDevices); fflush(stderr);
        // read the temperature and print serial number and temperature
        for (i = 0; i < NumDevices; i++) {
            if (ReadTemp22(portnum, FamilySN[i],&current_temp)) {
                now = time(0);
                printf("%ld ", now);
                PrintSerialNum(FamilySN[i]);
                printf("     %6.2f \n", current_temp);
                // converting temperature from Celsius to Fahrenheit
            } else {
                printf("     Error reading ");
                PrintSerialNum(FamilySN[i]);
                printf(" temperature, verify device present:%d\n",
                       (int)owVerify(portnum, FALSE));
            }
            fflush(stdout);
            //sleep(1);
        }
        // Find even more device(s) DS18B20
        TotalDevs += NumDevices = FindDevices(portnum, &FamilySN[0], 0x28, MAXDEVICES);
        //fprintf(stderr, "[%d]", NumDevices); fflush(stderr);
        // read the temperature and print serial number and temperature
        for (i = 0; i < NumDevices; i++) {
            if (ReadTemp28(portnum, FamilySN[i],&current_temp)) {
                now = time(0);
                printf("%ld ", now);
                PrintSerialNum(FamilySN[i]);
                printf("     %6.2f \n", current_temp);
                // converting temperature from Celsius to Fahrenheit
            } else {
                printf("     Error reading ");
                PrintSerialNum(FamilySN[i]);
                printf(" temperature, verify device present:%d\n",
                       (int)owVerify(portnum, FALSE));
            }
            fflush(stdout);
            //sleep(1);
        }

        // release the 1-Wire Net
        owRelease(portnum);

        sleep(1);
        if (TotalDevs == 0) {
            printf("\n\n\nERROR, no DS1920/DS18S20/DS1822/DS18B20 found!\n");
            sleep(15);
        }
    } while (!key_abort());

    return 0;
}