fix: stock movement

- test: stock movement create and cancel

backend/helpers.ts

@@ -46,6 +46,7 @@ export const databaseMethodSet: Set<DatabaseMethod> = new Set([
   'rename',
   'update',
   'delete',
+  'deleteAll',
   'close',
   'exists',
 ]);

fyo/model/doc.ts

@@ -129,7 +129,7 @@ export class Doc extends Observable<DocValue | Doc[]> {
     return !!this.submitted && !!this.cancelled;
   }
 
-  get syncing() {
+  get isSyncing() {
     return this._syncing;
   }
 
@@ -159,13 +159,18 @@ export class Doc extends Observable<DocValue | Doc[]> {
 
   _setValuesWithoutChecks(data: DocValueMap, convertToDocValue: boolean) {
     for (const field of this.schema.fields) {
-      const fieldname = field.fieldname;
+      const { fieldname, fieldtype } = field;
       const value = data[field.fieldname];
 
       if (Array.isArray(value)) {
         for (const row of value) {
           this.push(fieldname, row, convertToDocValue);
         }
+      } else if (
+        fieldtype === FieldTypeEnum.Currency &&
+        typeof value === 'number'
+      ) {
+        this[fieldname] = this.fyo.pesa(value);
       } else if (value !== undefined && !convertToDocValue) {
         this[fieldname] = value;
       } else if (value !== undefined) {
@@ -269,13 +274,13 @@ export class Doc extends Observable<DocValue | Doc[]> {
   }
 
   async _applyChange(
-    fieldname: string,
+    changedFieldname: string,
     retriggerChildDocApplyChange?: boolean
   ): Promise<boolean> {
-    await this._applyFormula(fieldname, retriggerChildDocApplyChange);
+    await this._applyFormula(changedFieldname, retriggerChildDocApplyChange);
     await this.trigger('change', {
       doc: this,
-      changed: fieldname,
+      changed: changedFieldname,
     });
 
     return true;
@@ -666,16 +671,17 @@ export class Doc extends Observable<DocValue | Doc[]> {
   }
 
   async _applyFormula(
-    fieldname?: string,
+    changedFieldname?: string,
     retriggerChildDocApplyChange?: boolean
   ): Promise<boolean> {
     const doc = this;
-    let changed = await this._callAllTableFieldsApplyFormula(fieldname);
-    changed = (await this._applyFormulaForFields(doc, fieldname)) || changed;
+    let changed = await this._callAllTableFieldsApplyFormula(changedFieldname);
+    changed =
+      (await this._applyFormulaForFields(doc, changedFieldname)) || changed;
 
     if (changed && retriggerChildDocApplyChange) {
-      await this._callAllTableFieldsApplyFormula(fieldname);
-      await this._applyFormulaForFields(doc, fieldname);
+      await this._callAllTableFieldsApplyFormula(changedFieldname);
+      await this._applyFormulaForFields(doc, changedFieldname);
     }
 
     return changed;

fyo/model/helpers.ts

@@ -105,10 +105,45 @@ export function shouldApplyFormula(field: Field, doc: Doc, fieldname?: string) {
     return true;
   }
 
+  if (doc.isSyncing && dependsOn.length > 0) {
+    return shouldApplyFormulaPreSync(field.fieldname, dependsOn, doc);
+  }
+
   const value = doc.get(field.fieldname);
   return getIsNullOrUndef(value);
 }
 
+function shouldApplyFormulaPreSync(
+  fieldname: string,
+  dependsOn: string[],
+  doc: Doc
+): boolean {
+  if (isDocValueTruthy(doc.get(fieldname))) {
+    return false;
+  }
+
+  for (const d of dependsOn) {
+    const isSet = isDocValueTruthy(doc.get(d));
+    if (isSet) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+export function isDocValueTruthy(docValue: DocValue | Doc[]) {
+  if (isPesa(docValue)) {
+    return !(docValue as Money).isZero();
+  }
+
+  if (Array.isArray(docValue)) {
+    return docValue.length > 0;
+  }
+
+  return !!docValue;
+}
+
 export function setChildDocIdx(childDocs: Doc[]) {
   for (const idx in childDocs) {
     childDocs[idx].idx = +idx;

models/inventory/StockManager.ts

@@ -25,25 +25,41 @@ export class StockManager {
     this.fyo = fyo;
   }
 
-  async transferStock(transferDetails: SMTransferDetails) {
-    const details = this.#getSMIDetails(transferDetails);
-    const item = new StockManagerItem(details, this.fyo);
-    await item.transferStock(this.isCancelled);
-    this.items.push(item);
+  async createTransfers(transferDetails: SMTransferDetails[]) {
+    for (const detail of transferDetails) {
+      await this.#createTransfer(detail);
+    }
+
+    await this.#sync();
   }
 
-  async sync() {
+  async cancelTransfers() {
+    const { referenceName, referenceType } = this.details;
+    await this.fyo.db.deleteAll(ModelNameEnum.StockLedgerEntry, {
+      referenceType,
+      referenceName,
+    });
+  }
+
+  async #sync() {
     for (const item of this.items) {
       await item.sync();
     }
   }
 
+  async #createTransfer(transferDetails: SMTransferDetails) {
+    const details = this.#getSMIDetails(transferDetails);
+    const item = new StockManagerItem(details, this.fyo);
+    await item.transferStock();
+    this.items.push(item);
+  }
+
   #getSMIDetails(transferDetails: SMTransferDetails): SMIDetails {
     return Object.assign({}, this.details, transferDetails);
   }
 }
 
-export class StockManagerItem {
+class StockManagerItem {
   /**
    * The Stock Manager Item is used to move stock to and from a location. It
    * updates the Stock Queue and creates Stock Ledger Entries.
@@ -80,9 +96,9 @@ export class StockManagerItem {
     this.fyo = fyo;
   }
 
-  async transferStock(isCancelled: boolean) {
+  transferStock() {
     this.#clear();
-    await this.#moveStockForBothLocations(isCancelled);
+    this.#moveStockForBothLocations();
   }
 
   async sync() {
@@ -91,29 +107,17 @@ export class StockManagerItem {
     }
   }
 
-  async #moveStockForBothLocations(isCancelled: boolean) {
+  #moveStockForBothLocations() {
     if (this.fromLocation) {
-      await this.#moveStockForSingleLocation(
-        this.fromLocation,
-        isCancelled ? false : true,
-        isCancelled
-      );
+      this.#moveStockForSingleLocation(this.fromLocation, true);
     }
 
     if (this.toLocation) {
-      await this.#moveStockForSingleLocation(
-        this.toLocation,
-        isCancelled ? true : false,
-        isCancelled
-      );
+      this.#moveStockForSingleLocation(this.toLocation, false);
     }
   }
 
-  async #moveStockForSingleLocation(
-    location: string,
-    isOutward: boolean,
-    isCancelled: boolean
-  ) {
+  #moveStockForSingleLocation(location: string, isOutward: boolean) {
     let quantity = this.quantity!;
     if (quantity === 0) {
       return;
@@ -124,10 +128,8 @@ export class StockManagerItem {
     }
 
     // Stock Ledger Entry
-    if (!isCancelled) {
-      const stockLedgerEntry = this.#getStockLedgerEntry(location, quantity);
-      this.stockLedgerEntries?.push(stockLedgerEntry);
-    }
+    const stockLedgerEntry = this.#getStockLedgerEntry(location, quantity);
+    this.stockLedgerEntries?.push(stockLedgerEntry);
   }
 
   #getStockLedgerEntry(location: string, quantity: number) {

models/inventory/StockMovement.ts

@@ -44,29 +44,22 @@ export class StockMovement extends Doc {
   }
 
   async afterSubmit(): Promise<void> {
-    await this._transferStock();
+    const transferDetails = this._getTransferDetails();
+    await this._getStockManager().createTransfers(transferDetails);
   }
 
   async afterCancel(): Promise<void> {
-    await this._transferStock();
+    await this._getStockManager().cancelTransfers();
   }
 
-  async _transferStock() {
-    const stockManager = this._getStockManager();
-    this._makeTransfers(stockManager);
-    await stockManager.sync();
-  }
-
-  _makeTransfers(stockManager: StockManager) {
-    for (const row of this.items ?? []) {
-      stockManager.transferStock({
-        item: row.item!,
-        rate: row.rate!,
-        quantity: row.quantity!,
-        fromLocation: row.fromLocation,
-        toLocation: row.toLocation,
-      });
-    }
+  _getTransferDetails() {
+    return (this.items ?? []).map((row) => ({
+      item: row.item!,
+      rate: row.rate!,
+      quantity: row.quantity!,
+      fromLocation: row.fromLocation,
+      toLocation: row.toLocation,
+    }));
   }
 
   _getStockManager(): StockManager {

models/inventory/tests/helpers.ts

@@ -1,21 +1,64 @@
 import { Fyo } from 'fyo';
 import { ModelNameEnum } from 'models/types';
-import test from 'tape';
+import { StockMovement } from '../StockMovement';
+import { MovementType } from '../types';
 
-export const dummyItems = [
-  {
-    name: 'Ball Pen',
-    rate: 50,
-    for: 'Both',
-    trackItem: true,
-  },
-  {
-    name: 'Ink Pen',
-    rate: 700,
-    for: 'Both',
-    trackItem: true,
-  },
-];
+type SLE = {
+  date: string;
+  name: string;
+  item: string;
+  location: string;
+  rate: string;
+  quantity: string;
+};
 
-export function createDummyItems(fyo: Fyo) {
+type Transfer = {
+  item: string;
+  from?: string;
+  to?: string;
+  quantity: number;
+  rate: number;
+};
+
+export function getItem(name: string, rate: number) {
+  return { name, rate, trackItem: true };
+}
+
+export async function getStockMovement(
+  movementType: MovementType,
+  transfers: Transfer[],
+  fyo: Fyo
+): Promise<StockMovement> {
+  const doc = fyo.doc.getNewDoc(ModelNameEnum.StockMovement, {
+    movementType,
+  }) as StockMovement;
+
+  for (const {
+    item,
+    from: fromLocation,
+    to: toLocation,
+    quantity,
+    rate,
+  } of transfers) {
+    await doc.append('items', {
+      item,
+      fromLocation,
+      toLocation,
+      rate,
+      quantity,
+    });
+  }
+
+  return doc;
+}
+
+export async function getSLEs(
+  referenceName: string,
+  referenceType: string,
+  fyo: Fyo
+) {
+  return (await fyo.db.getAllRaw(ModelNameEnum.StockLedgerEntry, {
+    filters: { referenceName, referenceType },
+    fields: ['date', 'name', 'item', 'location', 'rate', 'quantity'],
+  })) as SLE[];
 }

models/inventory/tests/testInventory.spec.ts

@@ -1,24 +1,189 @@
 import { ModelNameEnum } from 'models/types';
 import test from 'tape';
 import { closeTestFyo, getTestFyo, setupTestFyo } from 'tests/helpers';
-import { dummyItems } from './helpers';
+import { StockMovement } from '../StockMovement';
+import { MovementType } from '../types';
+import { getItem, getSLEs, getStockMovement } from './helpers';
 
 const fyo = getTestFyo();
 
 setupTestFyo(fyo, __filename);
 
-test('create dummy items', async (t) => {
-  for (const item of dummyItems) {
-    const doc = fyo.doc.getNewDoc(ModelNameEnum.Item, item);
-    t.ok(await doc.sync(), `${item.name} created`);
+const itemMap = {
+  Pen: {
+    name: 'Pen',
+    rate: 700,
+  },
+  Ink: {
+    name: 'Ink',
+    rate: 50,
+  },
+};
+
+const locationMap = {
+  LocationOne: 'LocationOne',
+  LocationTwo: 'LocationTwo',
+};
+
+/**
+ * Section 1: Test Creation of Items and Locations
+ */
+
+test('create dummy items & locations', async (t) => {
+  // Create Items
+  for (const { name, rate } of Object.values(itemMap)) {
+    const item = getItem(name, rate);
+    await fyo.doc.getNewDoc(ModelNameEnum.Item, item).sync();
+    t.ok(await fyo.db.exists(ModelNameEnum.Item, name), `${name} exists`);
+  }
+
+  // Create Locations
+  for (const name of Object.values(locationMap)) {
+    await fyo.doc.getNewDoc(ModelNameEnum.Location, { name }).sync();
+    t.ok(await fyo.db.exists(ModelNameEnum.Location, name), `${name} exists`);
   }
 });
 
-test('check dummy items', async (t) => {
-  for (const { name } of dummyItems) {
-    const exists = await fyo.db.exists(ModelNameEnum.Item, name);
-    t.ok(exists, `${name} exists`);
+/**
+ * Section 2: Test Creation of Stock Movements
+ */
+
+test('create stock movement, material receipt', async (t) => {
+  const { rate } = itemMap.Ink;
+  const quantity = 2;
+  const amount = rate * quantity;
+  const stockMovement = await getStockMovement(
+    MovementType.MaterialReceipt,
+    [
+      {
+        item: itemMap.Ink.name,
+        to: locationMap.LocationOne,
+        quantity,
+        rate,
+      },
+    ],
+    fyo
+  );
+
+  await (await stockMovement.sync()).submit();
+  t.ok(stockMovement.name?.startsWith('SMOV-'));
+  t.equal(stockMovement.amount?.float, amount);
+  t.equal(stockMovement.items?.[0].amount?.float, amount);
+
+  const name = stockMovement.name!;
+
+  const sles = await getSLEs(name, ModelNameEnum.StockMovement, fyo);
+  t.equal(sles.length, 1);
+
+  const sle = sles[0];
+  t.notEqual(new Date(sle.date).toString(), 'Invalid Date');
+  t.equal(parseInt(sle.name), 1);
+  t.equal(sle.item, itemMap.Ink.name);
+  t.equal(parseFloat(sle.rate), rate);
+  t.equal(sle.quantity, quantity);
+  t.equal(sle.location, locationMap.LocationOne);
+});
+
+test('create stock movement, material transfer', async (t) => {
+  const { rate } = itemMap.Ink;
+  const quantity = 2;
+
+  const stockMovement = await getStockMovement(
+    MovementType.MaterialTransfer,
+    [
+      {
+        item: itemMap.Ink.name,
+        from: locationMap.LocationOne,
+        to: locationMap.LocationTwo,
+        quantity,
+        rate,
+      },
+    ],
+    fyo
+  );
+
+  await (await stockMovement.sync()).submit();
+  const name = stockMovement.name!;
+
+  const sles = await getSLEs(name, ModelNameEnum.StockMovement, fyo);
+  t.equal(sles.length, 2);
+
+  for (const sle of sles) {
+    t.notEqual(new Date(sle.date).toString(), 'Invalid Date');
+    t.equal(sle.item, itemMap.Ink.name);
+    t.equal(parseFloat(sle.rate), rate);
+
+    if (sle.location === locationMap.LocationOne) {
+      t.equal(sle.quantity, -quantity);
+    } else if (sle.location === locationMap.LocationTwo) {
+      t.equal(sle.quantity, quantity);
+    } else {
+      t.ok(false, 'no-op');
+    }
   }
 });
 
+test('create stock movement, material issue', async (t) => {
+  const { rate } = itemMap.Ink;
+  const quantity = 2;
+
+  const stockMovement = await getStockMovement(
+    MovementType.MaterialIssue,
+    [
+      {
+        item: itemMap.Ink.name,
+        from: locationMap.LocationTwo,
+        quantity,
+        rate,
+      },
+    ],
+    fyo
+  );
+
+  await (await stockMovement.sync()).submit();
+  const name = stockMovement.name!;
+
+  const sles = await getSLEs(name, ModelNameEnum.StockMovement, fyo);
+  t.equal(sles.length, 1);
+
+  const sle = sles[0];
+  t.notEqual(new Date(sle.date).toString(), 'Invalid Date');
+  t.equal(sle.item, itemMap.Ink.name);
+  t.equal(parseFloat(sle.rate), rate);
+  t.equal(sle.quantity, -quantity);
+  t.equal(sle.location, locationMap.LocationTwo);
+});
+
+/**
+ * Section 3: Test Cancellation of Stock Movements
+ */
+
+test('cancel stock movement', async (t) => {
+  const names = (await fyo.db.getAllRaw(ModelNameEnum.StockMovement)) as {
+    name: string;
+  }[];
+
+  for (const { name } of names) {
+    const slesBefore = await getSLEs(name, ModelNameEnum.StockMovement, fyo);
+    const doc = (await fyo.doc.getDoc(
+      ModelNameEnum.StockMovement,
+      name
+    )) as StockMovement;
+
+    if (doc.movementType === MovementType.MaterialTransfer) {
+      t.equal(slesBefore.length, (doc.items?.length ?? 0) * 2);
+    } else {
+      t.equal(slesBefore.length, doc.items?.length ?? 0);
+    }
+
+    await doc.cancel();
+    const slesAfter = await getSLEs(name, ModelNameEnum.StockMovement, fyo);
+    t.equal(slesAfter.length, 0);
+  }
+});
+
+/**
+ * Section 4: Test Invalid entries
+ */
+
 closeTestFyo(fyo, __filename);