feat: add due bills reducer and selector.

client/src/containers/Purchases/Bill/withBills.js

@@ -4,12 +4,14 @@ import {
   getBillCurrentPageFactory,
   getBillPaginationMetaFactory,
   getBillTableQueryFactory,
+  getVendorDueBillsFactory
 } from 'store/Bills/bills.selectors';
 
 export default (mapState) => {
   const getBillsItems = getBillCurrentPageFactory();
   const getBillsPaginationMeta = getBillPaginationMetaFactory();
   const getBillTableQuery = getBillTableQueryFactory();
+  const getVendorDueBills = getVendorDueBillsFactory();
 
   const mapStateToProps = (state, props) => {
     const tableQuery = getBillTableQuery(state, props);
@@ -23,6 +25,8 @@ export default (mapState) => {
       billsPageination: getBillsPaginationMeta(state, props, tableQuery),
       billsLoading: state.bills.loading,
       nextBillNumberChanged: state.bills.nextBillNumberChanged,
+
+      vendorDueBills: getVendorDueBills(state, props),
     };
     return mapState ? mapState(mapped, state, props) : mapped;
   };

client/src/store/Bills/bills.actions.js

@@ -117,3 +117,17 @@ export const editBill = (id, form) => {
         });
     });
 };
+
+export const fetchDueBills = ({ vendorId }) => (dispatch) => new Promise((resolve, reject) => {
+  const params = { vendor_id: vendorId };
+
+  ApiService.get(`purchases/bills/due`, { params }).then((response) => {
+    dispatch({
+      type: t.DUE_BILLS_SET,
+      payload: {
+        bills: response.data.bills,
+      }
+    });
+    resolve(response);
+  }).catch(error => { reject(error) });
+});

client/src/store/Bills/bills.reducer.js

@@ -13,6 +13,7 @@ const initialState = {
     page: 1,
   },
   nextBillNumberChanged: false,
+  dueBills: {},
 };
 
 const defaultBill = {
@@ -103,6 +104,25 @@ const reducer = createReducer(initialState, {
     const { isChanged } = action.payload;
     state.nextBillNumberChanged = isChanged;
   },
+
+  [t.DUE_BILLS_SET]: (state, action) => {
+    const { bills } = action.payload;
+
+    const _dueBills = { ...state.dueBills };
+    const _bills = { ...state.items };
+
+    bills.forEach((bill) => {
+      _bills[bill.id] = { ...bill };
+      
+      if (!_dueBills[bill.vendor_id]) {
+        _dueBills[bill.vendor_id] = []
+      }
+      _dueBills[bill.vendor_id].push(bill.id);
+    });
+
+    state.items = { ..._bills };
+    state.dueBills = { ..._dueBills };
+  }
 });
 
 export default createTableQueryReducers('bills', reducer);

client/src/store/Bills/bills.selectors.js

@@ -9,8 +9,18 @@ const billPageSelector = (state, props, query) => {
 };
 const billItemsSelector = (state) => state.bills.items;
 
+/**
+ * Retrieve bill details.
+ * @return {IBill}
+ */
 const billByIdSelector = (state, props) => state.bills.items[props.billId];
 
+/**
+ * Retrieve vendor due bills ids.
+ * @return {number[]}
+ */
+const billsDueVendorSelector = (state, props) => state.bills.dueBills[props.vendorId];
+
 const billPaginationSelector = (state, props) => {
   const viewId = state.bills.currentViewId;
   return state.bills.views?.[viewId];
@@ -51,3 +61,17 @@ export const getBillPaginationMetaFactory = () =>
   createSelector(billPaginationSelector, (billPage) => {
     return billPage?.paginationMeta || {};
   });
+
+/**
+ * Retrieve due bills of specific vendor.
+ */
+export const getVendorDueBillsFactory = () => 
+  createSelector(
+    billItemsSelector,
+    billsDueVendorSelector,
+    (billsItems, dueBillsIds) => {
+      return Array.isArray(dueBillsIds)
+        ? pickItemsFromIds(billsItems, dueBillsIds) || []
+        : [];
+    },
+  );

client/src/store/Bills/bills.type.js

@@ -10,4 +10,5 @@ export default {
   BILLS_PAGE_SET: 'BILLS_PAGE_SET',
   BILLS_ITEMS_SET: 'BILLS_ITEMS_SET',
   BILL_NUMBER_CHANGED: 'BILL_NUMBER_CHANGED',
+  DUE_BILLS_SET: 'DUE_BILLS_SET'
 };

server/src/models/Bill.js

@@ -41,7 +41,7 @@ export default class Bill extends TenantModel {
    * @return {number}
    */
   get dueAmount() {
-    return this.amount - this.paymentAmount;
+    return Math.max(this.amount - this.paymentAmount, 0);
   }
 
   /**