c-laba-1

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

#define FILE_NAME "trips.dat"
#define AMOUNT 3;

typedef struct {
    char departureDate[50];
    char destination[50];
    char departureTime[50];
    int compartmentSeatsFree;
    int reservedSeatsFree;
} info;

FILE *fileOpenW(char fileName[50]) {
    FILE *tripsFile = fopen(fileName, "w");
    if (tripsFile == NULL) {
        printf("\nError opening file\n");
    }
    return tripsFile;
}

FILE *fileOpenR(char fileName[]) {
    FILE *tripsFile = fopen(fileName, "r");
    if (tripsFile == NULL) {
        printf("\nError opening file\n");
    }
    return tripsFile;
}

void writeTripsToFile(char fileName[50], info *trips) {
    FILE *tripsFile;
    tripsFile = fileOpenW(fileName);
    for (int i = 0; i < 3; i++) {
        fwrite(&trips[i], sizeof(info), 1, tripsFile);
    }

    if (fwrite != 0) {
        printf("contents to file written successfully !\n");
    } else {
        printf("error writing file !\n");
    }

    fclose(tripsFile);
}

void writeTripInfo(info *trip){
    printf("        Departure date: %s\n", (*trip).departureDate);
    printf("           Destination: %s\n", (*trip).destination);
    printf("        Departure time: %s\n", (*trip).departureTime);
    printf("Free compartment seats: %d\n", (*trip).compartmentSeatsFree);
    printf("   Free reserved seats: %d\n", (*trip).reservedSeatsFree);
    printf("---------------------------------\n");
}

void getTripsWithDestination(char fileName[50], char dest[50]){
    FILE *tripsFile = fileOpenR(fileName);
    info temp;
    while(fread(&temp, sizeof(info), 1, tripsFile)){
        if(strcmp(temp.destination, dest) == 0){
            writeTripInfo(&temp);
        }
    }
    fclose(tripsFile);
}

int main() {
    info trips[3];
    trips[0] = (info) {"12.12.19", "Moscow", "12:23", 12, 33};
    trips[1] = (info) {"01.02.19", "Oslo", "17:11", 32, 20};
    trips[2] = (info) {"02.12.20", "Melbourne", "02:39", 2, 9};

    writeTripsToFile(FILE_NAME, trips);
    getTripsWithDestination(FILE_NAME, "Moscow");

    return 0;
}