#include "main.h"
#include "EC800M.h"

typedef struct GPS_ {
    char time[10];
    char N[20];
    char E[20];
} GPS_;

float convertToDecimal(float coordinate)
{
    int degree = (int)(coordinate / 100);
    float minutes = coordinate - degree * 100;
    return degree + minutes / 60;
}

void Data_parsing(char *gps_data, GPS_ * gps_)
{
    char *p = strchr(gps_data, ':');
    char *p1 = strstr(p + 2, "\r\n");
    char GPS_DATA_[p1 - p];
    
    memset(GPS_DATA_, 0, p1 - p);
    memcpy(GPS_DATA_, p + 2, p1 - p - 2 + 1);
    //printf("%s\n", GPS_DATA_);

    char *token = strtok(GPS_DATA_, ",");
    int i = 1;
    while (token != NULL) {
        if (i == 1) {
            strcpy(gps_->time, token);
        }
        if (i == 2) {
            strcpy(gps_->N, token);
        }
        if (i == 3) {
            strcpy(gps_->E, token);
        }

        token = strtok(NULL, ",");
        i++;
    }

    gps_->N[strlen(gps_->N) - 1] = '\0';
    gps_->E[strlen(gps_->E) - 1] = '\0';
    //printf("GPS : %.6f, %.6f\n", convertToDecimal(atof(gps_->N)), convertToDecimal(atof(gps_->E)));

    // 095921.00
    char hours[3] = { 0 };
    char minutes[3] = { 0 };
    char seconds[9] = { 0 };
    char *p2 = gps_->time;
    memcpy(hours, p2, 2);
    memcpy(minutes, p2 + 2, 2);
    memcpy(seconds, p2 + 4, 2);
    //printf("GPS 修正时间: %d:%s:%s\n", atoi(hours) + 8, minutes, seconds);

    sprintf(gps_->time, "%d:%s:%s", atoi(hours) + 8, minutes, seconds);
    sprintf(gps_->N, "%.6f", convertToDecimal(atof(gps_->N)));
    sprintf(gps_->E, "%.6f", convertToDecimal(atof(gps_->E)));

}

int main(void)
{
    stdio_init_all();
    sleep_ms(1000);
    set_sys_clock_khz(250000, true);
    
    if (watchdog_caused_reboot()) { // 判断是否从看门狗启动或者正常启动
        printf("Rebooted by Watchdog!\n");
    } else {
        printf("Clean boot\n");
    }
    watchdog_enable(8300, 1);   // 8秒检测是否重新加载看门狗计数器. (不更新计数器则重启硬件, 最高8秒)
    watchdog_start_tick(12);

    printf("EC800M\n");
    EC800M_INIT();
    char gps_data[1024] = { 0 };

    GPS_ gps_;

    while (1) {
        watchdog_update();      // 喂狗
        strcpy(gps_data, EC800M());
        Data_parsing(gps_data, &gps_);
        printf(" T: %s\n N: %s\n E: %s\n", gps_.time, gps_.N, gps_.E);

        printf("\r\n");
        sleep_ms(3000);
    }

    return 0;
}