import { HttpClient } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { BehaviorSubject, Observable } from 'rxjs';
import { Cartdto } from '../model/Cartdto';
import { CartItem } from '../model/CartItem';
import { Orderdto } from '../model/Orderdto';
import { Products } from '../model/Products';
import { User } from '../model/User';

@Injectable({
  providedIn: 'root'
})
export class CartService {

  public cartItemList : any=[];
  cartItem!:CartItem;
  public cartdto! : Cartdto[];
  public orderdto! : Orderdto[];
  public productList = new BehaviorSubject<any>([]);
  order = new BehaviorSubject<Orderdto>({});
  num=new BehaviorSubject<number>(0);
  num1=new BehaviorSubject<boolean>(false);

  total=new BehaviorSubject<number>(0);
  

  path : string = 'http://localhost:8001/api1';

  constructor(private httpClient:HttpClient) { }

  public postCart(uid:number,pid:number):Observable<CartItem[]>{
    let get_api=this.path + '/cart/'+uid+'/'+pid;
    this.cartItem= {};
    return this.httpClient.post<CartItem[]>(get_api,this.cartItem);
  }

  public getCart(uid:number):Observable<Cartdto[]>{
    let get_api=this.path + '/cart/'+uid;
    return this.httpClient.get<Cartdto[]>(get_api);
  }

  public getCartdto(uid:number):Observable<Cartdto[]>{
    let get_api=this.path + '/cartdto/'+uid;
    this.cartItem= {};
    return this.httpClient.get<Cartdto[]>(get_api);
  }

  public addquantity(cid:number,quantity:number):Observable<Cartdto[]>{
    let get_api=this.path + '/cartput/'+cid+'/'+quantity;
    return this.httpClient.post<Cartdto[]>(get_api,this.cartItem);
  }
  public deleteCartItem(cid:number):Observable<any>{
    let api=this.path+'/cart/'+cid;
    return this.httpClient.delete<any>(api);
  }

  public deleteCart(uid:number):Observable<any>{
    let api=this.path+'/usercart/'+uid;
    return this.httpClient.delete<any>(api);
  }

  public getCartsum(uid:number):Observable<any>{
    let get_api=this.path + '/cartsum/'+uid;
    this.cartItem= {};
    return this.httpClient.post<any>(get_api,this.cartItem);
  }

  public postOrder(order:Orderdto,uid:number):Observable<any>{
    let get_api=this.path + '/order/'+uid;
    return this.httpClient.post<any>(get_api,order);
  }

  public getOrder(uid:number):Observable<any>{
    let get_api=this.path + '/orderdto/'+uid;
    return this.httpClient.get<any>(get_api);
  }

  public deleteOrderItem(cid:number):Observable<any>{
    let api=this.path+'/order/'+cid;
    return this.httpClient.delete<any>(api);
  }

  public getordersum(uid:number,onid:number):Observable<any>{
    let get_api=this.path + '/ordersum/'+uid+'/'+onid;
    return this.httpClient.get<any>(get_api);
  }

  public getordersumByUid(uid:number):Observable<any>{
    let get_api=this.path + '/orderuid/'+uid;
    return this.httpClient.get<any>(get_api);
  }
  

  public addquantityOrder(cid:number,quantity:number):Observable<Orderdto[]>{
    let get_api=this.path + '/orderput/'+cid+'/'+quantity;
    return this.httpClient.post<Orderdto[]>(get_api,this.cartItem);
  }


  getProducts()
  {
    return this.productList.asObservable();
  }

  setProduct(product : any)
  {
    this.cartItemList.push(...product)
    this.productList.next(product)
  }

  addtoCart(product : any)
  {
    this.cartItemList.push(product);
    this.productList.next(this.cartItemList);
    this.getTotalPrice();
  }

  getTotalPrice() : number{
    let grandTotal = 0;
   this.cartItemList.map((a:any)=>{
     a.total= a.price*a.quantity;
     grandTotal+=a.total;
   })
   return grandTotal;
  }
 
  removeCartItem(product: any)
  {
    this.cartItemList.map((a:any,index:any)=>{
      if(product.id===a.id)
      {
        this.cartItemList.splice(index,1);
      }
    })
  }
}