#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<time.h>
#include<malloc.h>
//single linked list

struct food{
    char name[100];
    char type[100];
    int price;
    food *next;
}*head=NULL,*tail=NULL,*curr=NULL;

void randomNum(){
    srand(time(NULL));
    int randomNum=rand()%10;
}

void pushQue(char name[],char type[],int price){
    struct food *curr=(struct food*)malloc(sizeof(food));
    strcpy(curr->name,name);
    strcpy(curr->type,type);
    curr->price=price;

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

void makeOrder(){
    randomNum();
    char order[100];
    char orderID[100];
    char yesorno[10];
    char type[100];
    int itemnumber=0;;
    int price;
    printf("Order ID: FD%d\n",randomNum);
    printf("=======================\n");
    do{
        do{
            printf("Input food name [Chicken Steak | Cheese Cake | Spiced Olives] :");
            scanf("%[^\n]",&order);
            fflush(stdin);

            if(strcmp(order,"Chicken Steak")==0){itemnumber=1;}
            if(strcmp(order,"Cheese Cake")==0){itemnumber=2;}
            if(strcmp(order,"Spiced Olives")==0){itemnumber=3;}

            if(itemnumber==1){
                strcpy(type,"Main Course");
                price=250000;
            }

            if(itemnumber==2){
                strcpy(type,"Dessert");
                price=150000;
            }

            if(itemnumber==3){
                strcpy(type,"Appetizer");
                price=100000;
            }
        }while(itemnumber==0);
        pushQue(order,type,price);
        printf("Do you want to add another food? [Y/N]: ");
        scanf("%s",&yesorno);
        fflush(stdin);
    }while(strcmp(yesorno,"Y")==0);
}

void viewOrder(){
    randomNum();
    if(head == NULL){
        system("CLS");
        printf("There's no Queue right now!\n");
        getchar();
    }
    else{
        struct food *curr=head;
        while(curr!=NULL)
        {
            for(int i=1;i<3;i++)
            {
                printf(" FD%d | %s | %s | %d\n",randomNum,curr->name,curr->type,curr->price);
                curr=curr->next;
            }
        }
    }
}


void deleteOrder(){
    if(head!=NULL)
    {
        curr=head;
        head=head->next;
        free(curr);
    }
}

int main(){

    int input=-1;
    printf("Bluejack Restaurant Order\n");
    printf("=========================\n");
    printf("1. Make Order\n");
    printf("2. View Order\n");
    printf("3. Delete Order\n");
    printf("4. Exit\n");

    printf("Input: ");
    scanf("%d",&input);
    fflush(stdin);
    if(input==1){makeOrder();}
    if(input==2){viewOrder();}
    if(input==3){deleteOrder();}

    getchar();
    return 0;
}