#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

typedef struct only_time{
    int hour;
    int minute;
    int second;
}only_time_t;

typedef struct product{
    char * code_product;
    char * name;
    char * code_piece;
    only_time_t enter;
    only_time_t exit;
}product_t;

typedef struct product_list{
    product_t product;
    struct product_list *next;
}product_list_t;

FILE * open_file(char *c);
product_t * read_line(FILE * fp);
only_time_t timestring_to_time(char * timestring);
void print_product(product_t * product);
int is_number(char *param);

int main(void)
{
    FILE * fp;
    fp = open_file("test.txt");
    while(1){
        if(feof(fp))
            break;
        product_t * product = read_line(fp);
        print_product(product);
    }
    fclose(fp);
    return(0);
}

// returns file pointer, input string of filename
FILE * open_file(char *c){
    FILE * fp;

    fp = fopen(c, "r");
    return(fp);
}

// reads an entire file.
product_t * read_line(FILE * fp){
    char * line = NULL;
    size_t len = 0;
    product_t * temp;
    int i = 0;

    temp = (product_t *) malloc(sizeof(product_t));

    temp->code_product = (char *) malloc(sizeof(char) * 4);
    temp->name = (char *) malloc(sizeof(char) * 60);
    temp->code_piece = (char *) malloc(sizeof(char) * 4);

    //read a line from the file
    getline(&line, &len, fp);

    //handle line info info
    char *tokens[80];

    tokens[0] = strtok(line," ,.");

    while (tokens[i] != NULL) {
        i++;
        tokens[i] = strtok(NULL," ,.");
    }

    temp->code_product = tokens[0];
    temp->name = tokens[1];
    temp->code_piece = tokens[2];
    temp->enter = timestring_to_time(tokens[3]);
    temp->exit = timestring_to_time(tokens[4]);

    return(temp);
}

only_time_t timestring_to_time(char * timestring){
    only_time_t time;
    int i = 0;
    char *tokens[5];

    //init values:
    time.hour = 0;
    time.minute = 0;
    time.second = 0;

    tokens[0] = strtok(timestring,":;");

    while (tokens[i] != NULL) {
        i++;
        tokens[i] = strtok(NULL," :;");
    }

    time.hour = atoi(tokens[0]);
    time.minute = atoi(tokens[1]);
    time.second = atoi(tokens[2]);

    return(time);

}

void print_product(product_t * product){
    printf("product_t code_product: %s \n", product->code_product);
    printf("product_t name: %s \n", product->name);
    printf("product_t code_piece: %s \n", product->code_piece);
    printf("product_t enter: %d:%d:%d \n", product->enter.hour,product->enter.minute,product->enter.second);
    printf("product_t exit: %d:%d:%d \n", product->exit.hour,product->exit.minute,product->exit.second);
}