implemented bill deletion + var rename

app/lib/actions.ts

@@ -4,8 +4,7 @@ import { z } from 'zod';
 import { revalidatePath } from 'next/cache';
 import { redirect } from 'next/navigation';
 import clientPromise from './mongodb';
-import { ObjectId } from 'mongodb';
-import { BillAttachment } from './db-types';
+import { BillAttachment, Bill } from './db-types';
 
 export type State = {
     errors?: {
@@ -113,7 +112,7 @@ export async function updateBill(locationId: string, billId:string, prevState:St
 
 
     // find a location with the given locationID
-    const post = await db.collection<Location>("lokacije").updateOne(
+    const post = await db.collection<BillingLocation>("lokacije").updateOne(
         {
             _id: locationId // find a location with the given locationID
         },
@@ -121,7 +120,7 @@ export async function updateBill(locationId: string, billId:string, prevState:St
             $set: mongoDbSet
         }, {
             arrayFilters: [
-                { "elem._id": { $eq: new ObjectId(billId) } } // find a bill with the given billID
+                { "elem._id": { $eq: billId } } // find a bill with the given billID
             ]
         });
 
@@ -133,4 +132,54 @@ export async function updateBill(locationId: string, billId:string, prevState:St
 
 export async function gotoHome() {
     redirect('/');   
+}
+
+export const fetchBillById = async (locationID:string, billID:string) => {
+    const client = await clientPromise;
+    const db = client.db("rezije");
+
+    // find a location with the given locationID
+    const billLocation = await db.collection<BillingLocation>("lokacije").findOne({ _id: locationID })
+
+    if(!billLocation) {
+        console.log(`Location ${locationID} not found`);
+        return(null);
+    }
+
+    // find a bill with the given billID
+    const Bill = billLocation?.bills.find(({ _id }) => _id.toString() === billID);
+
+    if(!Bill) {
+        console.log('Bill not found');
+        return(null);
+    }
+
+    const { _id, ...billBase  } = Bill;
+
+    return({
+        id: _id.toString(),
+        ...billBase
+    } as Bill);
+
+}
+
+export const deleteBillById = async (locationID:string, billID:string) => {
+    const client = await clientPromise;
+    const db = client.db("rezije");
+
+    // find a location with the given locationID
+    const post = await db.collection<BillingLocation>("lokacije").updateOne(
+        {
+            _id: locationID // find a location with the given locationID
+        },
+        {
+            // remove the bill with the given billID
+            $pull: {
+                bills: {
+                    _id: billID
+                }
+            }
+        });
+    
+    return(post.modifiedCount);
 }