import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query"
import ExpenseRepository from "../repositories/ExpsenseRepository"
import showToast from "../services/toastService"
import { queryClient } from "../layouts/AuthLayout";



// -------------------Query------------------------------------------------------
export const useExpenseList=( pageSize, pageNumber, filter ) =>{

return useQuery({
    queryKey: ["expenses", pageNumber, pageSize, filter],
    queryFn: async() =>
     await ExpenseRepository.GetExpenseList( pageSize, pageNumber, filter ).then((res) => res.data),
    keepPreviousData: true,
  });
}

export const useExpense =(ExpenseId)=>{
    return useQuery({
        queryKey:["Expense",ExpenseId],
        queryFn:async()=>await ExpenseRepository.GetExpenseDetails(ExpenseId)
    })
}




// ---------------------------Mutation---------------------------------------------

export const useCreateExpnse =(onSuccessCallBack)=>{
   const queryClient = useQueryClient()
    return useMutation({
        mutationFn: async(payload)=>{
            await ExpenseRepository.CreateExpense(payload)
        },
        onSuccess:(_,variables)=>{
           showToast("Expense Created Successfully","success")
           queryClient.invalidateQueries({queryKey:["expenses"]})
           if (onSuccessCallBack) onSuccessCallBack();
        },
        onError:(error)=>{
             showToast(error.message || "Something went wrong please try again !","success")
        }
    })
}
const demoExpense = {
  projectId: "proj_123",
  expensesTypeId: "1",           // corresponds to Travel
  paymentModeId: "pm_456",
  paidById: "emp_789",
  transactionDate: "2025-07-21",
  transactionId: "TXN-001234",
  description: "Taxi fare from airport to hotel",
  location: "New York",
  supplerName: "City Taxi Service",
  amount: 45.50,
  noOfPersons: 2,
  billAttachments: [
    {
      fileName: "receipt.pdf",
      base64Data: "JVBERi0xLjQKJcfs...",  // truncated base64 example string
      contentType: "application/pdf",
      fileSize: 450000, // less than 5MB
      description: "Taxi receipt",
    },
  ],
};