Music_playlist_creator.c

#include<stdio.h>

#include<stdlib.h>

#include<string.h>



struct node{

    char data[40];

    struct node*next;

    struct node*prev;

};



char temp[40];

struct node*head=NULL;

struct node*current_node=NULL;



void insert(){

    printf("Enter Music Name:\n");

    while((getchar())!='\n');

    scanf("%[^\n]%*c",temp);



    struct node* new_node=(struct node*)malloc(sizeof(struct node));

    strcpy(new_node->data,temp);

    if(head==NULL){

        new_node->next=new_node->prev=new_node;

        head=current_node=new_node;

        return;

    }

    struct node*last=head->prev;

    new_node->prev=last;

    last->next=new_node;

    new_node->next=head;

    head->prev=new_node;

}



void Delete_element(){

    if(head==NULL){

        printf("No Music is there to delete!\n");

        return;

    }

    printf("Enter Music Name to delete:\n");

    while((getchar())!='\n');

    scanf("%[^\n]%*c",temp);

    printf("\n");

    struct node*ptr=head;

    do{

        if(ptr->next==ptr && strcmp(ptr->data,temp)==0){

            printf("One file deleted! Playlist is Empty Now!\n");

            head=NULL;

            free(ptr);

            return;

        }

        else if(strcmp(ptr->data,temp)==0){

            struct node*prev=ptr->prev;

            struct node*next=ptr->next;

            prev->next=next;

            next->prev=prev;

            head=next;

            free(ptr);

            printf("Music deleted!\n");

            return;

        }

        ptr=ptr->next;

    }while(ptr!=head);

    printf("No Music file is there!\n");

}



void show(){

    if(head==NULL){

        printf("Playlist is Empty!\n");

        return;

    }

    struct node*show_ptr=head;

    printf("\n");

    int i=1;

    printf("Displaying Playlist :\n");

    do{

        printf("Song %d : %s\n",i,show_ptr->data);

        i++;

        show_ptr=show_ptr->next;

    }while(show_ptr!=head);

}



void next_node(){

    if(current_node==NULL){

        printf("No songs in Playlist!\n");

    }

    else{

        current_node=current_node->next;

        printf("Playing Next Song : %s\n",current_node->data);

    }

}



void prev_node(){

    if(current_node==NULL){

        printf("No songs in Playlist!\n");

    }

    else{

        current_node=current_node->prev;

        printf("Playing Previous Song : %s\n",current_node->data);

    }

}



void first_node(){

    if(head==NULL){

        printf("Playlist is Empty!\n");

    }

    else{

        printf("Playing First Music : %s\n",head->data);

    }

}



void last_node(){

    if(head==NULL){

        printf("Playlist is Empty!\n");

    }

    else{

        printf("Playing Last Music : %s\n",head->prev->data);

    }

}



void specific_data(){

    if(head==NULL){

        printf("No music is there to be searched!\n");

        return;

    }

    printf("Enter Music Name to delete:\n");

    while((getchar())!='\n');

    scanf("%[^\n]%*c",temp);

    printf("\n");

    struct node*ptr=head;

    do{

        if(strcmp(ptr->data,temp)==0){

            printf("Music Found!\n");

            printf("Playing Music : %s\n",ptr->data);

            return;

        }

        ptr=ptr->next;

    }while(ptr!=head);

    printf("There is no Music file with this name!\n");

}



int main(){

    int choice;

    menu:

    printf("\n-----Song Playlist Application-----\n");

    printf("1. Add Music\n");

    printf("2. Remove Music\n");

    printf("3. Show Playlist\n");

    printf("4. Play next file\n");

    printf("5. Play previous file,\n");

    printf("6. Play first file\n");

    printf("7. Play Last file\n");

    printf("8. Play specific file.\n");

    printf("9. Exit\n\n");

    scanf("%d",&choice);



    if (choice == 1)

        insert();



    else if (choice == 2)

        Delete_element();



    else if (choice == 3)

        show();



    else if (choice == 4)

        next_node();



    else if (choice == 5)

        prev_node();



    else if (choice == 6)

        first_node();



    else if (choice == 7)

        last_node();



    else if (choice == 8)

        specific_data();

    else

        exit(0);



        goto menu;

return 0;

}