space_game/logger.c

#include "logger.h"

// Defaults

loggerlevel LOGLEVEL = SILENT;
loggerlevel STDOUTLEVEL = SILENT;

void set_loglevel(loggerlevel echo, loggerlevel write) {
    LOGLEVEL = write;
    STDOUTLEVEL = echo;
}

int copy_str(char * out_string, char * string) {
    /* A drop in replacement for strcpy() from <string.h>*/
    int len = 0;
    while (*(string + len) != '\0') {
        *(out_string + len) = *(string + len);
        len++;
    }
    *(out_string + len) =  '\0';
    return (1);
}

void logwrite(loggerlevel level, char message[]) {
    // write a string message 
    char time_str[100];
    time_t current_time;
    time(&current_time); 

    copy_str(time_str, asctime(localtime(&current_time)));

    // delete the \n
    time_str[24] = ' ';
    
    char prepend[15];
    copy_str(prepend, time_str);


    switch (level) {
        case DEBUG:
            strcat(prepend, "DEBUG");
            break;
        case INFO:
            strcat(prepend, "INFO ");
            break;
        case WARN:
            strcat(prepend, "WARN ");
            break;
        case ERROR:
            strcat(prepend, "ERROR");
            break;
    }

    strcat(prepend, ": ");

    if (level <= LOGLEVEL) {
        FILE * logfile = fopen("debug.log", "a");
        fprintf(logfile, "%s", prepend);
        fprintf(logfile, message);
        fclose(logfile);
    }

    if (level <= STDOUTLEVEL) {
        printf("%s", prepend);
        printf(message);
    }

}