MUSIC ALBUM_V2.C

10_musicalbum_v2.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_LEN 20

char filename[MAX_LEN] = "musicalbum_v0.csv";
FILE *file;

// Prototypes:
int menu();
void insertFront(int, char[], char[], int);
void insertLast(int, char[], char[], int);
void insertMid(int, char[], char[], int, int);
int removeFromDeque(int);
void displayDeque();
void loadFile(char[]);


struct SimpleDeque_Item
{
    int track;
    char artist[50];
    char music[50];
    int duration;
    struct SimpleDeque_Item *next;
} * head;

int main()
{
    int op, num, pos, c, res, track, duration;
    char artist[50], music[50];
    head = NULL;

    FILE *fpt;
    errno_t err;

    loadFile(filename);

    while (1)
    {
        op = menu();
        switch (op)
        {
        case 1: // 1.Insert at beginning of deque
            printf("Enter the desired Track number: ");
            scanf_s("%d", &track);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Artist name: ");
            scanf_s("%[a-zA-z ]]", &artist);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Music name: ");
            scanf_s("%[a-zA-z ]]", &music);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Duration of the track: ");
            scanf_s("%d", &duration);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            insertFront(track, artist, music, duration);
            break;
        case 2: // 2.Insert at end of deque
            printf("Enter the desired Track number: ");
            scanf_s("%d", &track);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Artist name: ");
            scanf_s("%[a-zA-z ]]", &artist);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Music name: ");
            scanf_s("%[a-zA-z ]]", &music);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Duration of the track: ");
            scanf_s("%d", &duration);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            insertLast(track, artist, music, duration);
            break;
        case 3: // 3.Insert at middle of deque
            printf("Enter the desired Track number: ");
            scanf_s("%d", &track);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Artist name: ");
            scanf_s("%[a-zA-z ]]", &artist);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Music name: ");
            scanf_s("%[a-zA-z ]]", &music);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            printf("Enter the Duration of the track: ");
            scanf_s("%d", &duration);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }
            printf("Enter the position you want to insert the new track: ");
            scanf_s("%d", &pos);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }
            insertMid(track, artist, music, duration, pos);
            break;
        case 4: // 4.Remove from deque
            printf("Enter the desired Track number: ");
            scanf_s("%d", &track);
            while ((c = getchar()) != '\n' && c != EOF)
            {
            }

            res = removeFromDeque(track);
            if (res == 1)
                printf("Track Number removed from Deque!");
            else
                printf("Track Number not found!");
            break;
        case 5: // 5.Display deque items
            displayDeque();
            break;
        case 6: // 6.Exit
            err = fopen_s(&fpt, filename, "w+");
            
            /* Saving all Tracks to a File */
            struct SimpleDeque_Item *ScanItem;
            ScanItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));

            ScanItem = head;
            if (ScanItem == NULL)
            {
                return 1;
            }
            while (ScanItem != NULL)
            {
                fprintf(fpt, "%i,%s,%s,%i\n", ScanItem->track, ScanItem->artist, ScanItem->music, ScanItem->duration);
                ScanItem = ScanItem->next;
            }
            /* Closing the file to avoid memory leakage */
            fclose(fpt);
            printf("\n %s file saved sucessfuly!\n\n", filename);
            printf("\nThank You kindly!\n\n");
            return 0;
        default:
            printf("Invalid Number!\n");
        }
    }
    return 0;
}

int menu()
{
    int op, c;
    system("Cls");

    printf("WELCOME to J3 MUSIC ALBUM!!! ENJOY!!!\n");

    printf("This Deque supports these operations:\n");
    printf("_____________________________________\n\n");
    printf("1.Insert at beginning of deque\n");
    printf("2.Insert at end of deque\n");
    printf("3.Insert at middle of deque\n");
    printf("4.Remove from deque\n");
    printf("5.Display deque items\n");
    printf("6.Exit\n");
    printf("_____________________________________\n");
    printf("Which operation you chose? ");

    scanf_s("%d", &op);
    while ((c = getchar()) != '\n' && c != EOF)
    {
    }

    system("Cls");
    return op;
}

void insertFront(int track, char artist[50], char music[50], int duration)
{
    struct SimpleDeque_Item *NewItem;
    NewItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));

    NewItem->track = track;
    strcpy(NewItem->artist, artist);
    strcpy(NewItem->music, music);
    NewItem->duration = duration;

    if (head == NULL)
    {
        head = NewItem;
        head->next = NULL;
    }
    else
    {
        NewItem->next = head;
        head = NewItem;
    }
}

void insertLast(int track, char artist[50], char music[50], int duration)
{
    struct SimpleDeque_Item *NewItem;
    NewItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));
    struct SimpleDeque_Item *ScanItem;
    ScanItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));

    NewItem->track = track;
    strcpy(NewItem->artist, artist);
    strcpy(NewItem->music, music);
    NewItem->duration = duration;

    if (head == NULL)
    {
        head = NewItem;
        head->next = NULL;
    }
    else
    {
        ScanItem = head;
        while (ScanItem->next != NULL)
            ScanItem = ScanItem->next;

        ScanItem->next = NewItem;
        NewItem->next = NULL;
    }
}

void insertMid(int track, char artist[50], char music[50], int duration, int position)
{
    struct SimpleDeque_Item *NewItem;
    NewItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));
    struct SimpleDeque_Item *ScanItem;
    ScanItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));
    struct SimpleDeque_Item *AuxiliaryItem;
    AuxiliaryItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));

    NewItem->track = track;
    strcpy(NewItem->artist, artist);
    strcpy(NewItem->music, music);
    NewItem->duration = duration;

    if (position == 0)
    {
        head = NewItem;
        head->next = NULL;
    }
    else
    {
        ScanItem = head;
        for (int i = 0; i < position - 1; i++)
            ScanItem = ScanItem->next;

        AuxiliaryItem = ScanItem->next;
        ScanItem->next = NewItem;
        NewItem->next = AuxiliaryItem;
    }
}

int removeFromDeque(int track)
{
    struct SimpleDeque_Item *ScanItem;
    ScanItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));
    struct SimpleDeque_Item *Anterior;
    Anterior = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));

    ScanItem = head;
    while (ScanItem != NULL)
    {
        if (ScanItem->track == track)
        {
            if (ScanItem == head)
            {
                head = ScanItem->next;
                free(ScanItem);
                return 1;
            }
            else
            {
                Anterior->next = ScanItem->next;
                free(ScanItem);
                return 1;
            }
        }
        else
        {
            Anterior = ScanItem;
            ScanItem = ScanItem->next;
        }
    }
    return 0;
}

void displayDeque()
{
    struct SimpleDeque_Item *ScanItem;
    ScanItem = (struct SimpleDeque_Item *)malloc(sizeof(struct SimpleDeque_Item));

    ScanItem = head;
    if (ScanItem == NULL)
    {
        return;
    }
    while (ScanItem != NULL)
    {
        printf("_____________________________________\n");
        printf("Track: %i\n", ScanItem->track);
        printf("Artist: %s\n", ScanItem->artist);
        printf("Music: %s\n", ScanItem->music);
        printf("Duration: %i\n", ScanItem->duration);
        printf("_____________________________________\n");
        ScanItem = ScanItem->next;
    }
    printf("\n");

    system("pause");
    return;
}

void loadFile(char filename[])
{

    file = fopen(filename, "r+");
    char line[500];
    while (fgets(line, sizeof(line), file))
    {
        int track;
        char artist[50] = {0};
        char music[50] = {0};
        int duration;

        sscanf(line, "%i,%[^,], %[^,], %i", &track, artist, music, &duration);
            
        insertLast(track, artist, music, duration);
    }

    fclose(file);
}