back/model-config.json

@@ -124,6 +124,9 @@
     "Postcode": {
         "dataSource": "vn"
     },
+    "ReferenceRate": {
+        "dataSource": "vn"
+    },
     "SageWithholding": {
         "dataSource": "vn"
     },

back/models/collection.json

@@ -1,6 +1,11 @@
 {
     "name": "Collection",
     "base": "VnModel",
+    "options": {
+		"mysql": {
+			"table": "collection"
+		}
+	},
     "acls": [{
         "property": "validations",
         "accessType": "EXECUTE",
@@ -9,4 +14,3 @@
         "permission": "ALLOW"
 	}]
 }
-  

back/models/reference-rate.json

@@ -0,0 +1,36 @@
+{
+    "name": "ReferenceRate",
+    "base": "PersistedModel",
+    "options": {
+        "mysql": {
+            "table": "referenceRate"
+        }
+    },
+    "properties": {
+        "id": {
+            "type": "number",
+            "id": true,
+            "description": "Identifier"
+        },
+        "currencyFk": {
+            "type": "number",
+            "required": true
+        },
+        "dated": {
+            "type": "date",
+            "required": true
+        },
+        "value": {
+            "type": "number",
+            "required": true
+        }
+    },
+    "acls": [
+        {
+            "accessType": "READ",
+            "principalType": "ROLE",
+            "principalId": "$everyone",
+            "permission": "ALLOW"
+        }
+    ]
+}

db/dump/fixtures.before.sql

@@ -160,7 +160,8 @@ INSERT INTO `vn`.`currency`(`id`, `code`, `name`, `ratio`)
         (1, 'EUR', 'Euro',          1),
         (2, 'USD', 'Dollar USA',    1.4),
         (3, 'GBP', 'Libra',         1),
-        (4, 'JPY', 'Yen Japones',   1);
+        (4, 'JPY', 'Yen Japones',   1),
+        (5, 'CNY',  'Yuan Chino',   1.2);
 
 INSERT INTO `vn`.`country`(`id`, `country`, `isUeeMember`, `code`, `currencyFk`, `ibanLength`, `continentFk`, `hasDailyInvoice`, `CEE`)
     VALUES

db/versions/10992-goldenIvy/00-acl.sql

@@ -0,0 +1,2 @@
+INSERT INTO `salix`.`ACL` (`model`, `property`, `accessType`, `permission`, `principalType`, `principalId`)
+    VALUES ('InvoiceIn', 'exchangeRateUpdate', '*', 'ALLOW', 'ROLE', 'employee');

db/versions/10992-goldenIvy/00-referenceRate.sql

@@ -0,0 +1,4 @@
+ALTER TABLE vn.referenceRate DROP INDEX `PRIMARY`;
+ALTER TABLE vn.referenceRate ADD id INT auto_increment PRIMARY KEY;
+ALTER TABLE vn.referenceRate CHANGE id id int(11) auto_increment NOT NULL FIRST;
+CREATE UNIQUE INDEX referenceRate_currencyFk_IDX USING BTREE ON vn.referenceRate (currencyFk,dated);

modules/invoiceIn/back/methods/invoice-in/exchangeRateUpdate.js

@@ -0,0 +1,64 @@
+const axios = require('axios');
+const {DOMParser} = require('xmldom');
+const UserError = require('vn-loopback/util/user-error');
+
+module.exports = Self => {
+    Self.remoteMethod('exchangeRateUpdate', {
+        description: 'Updates the exchange rates from an XML feed',
+        accessType: 'WRITE',
+        accepts: [],
+        http: {
+            path: '/exchangeRateUpdate',
+            verb: 'post'
+        }
+    });
+
+    Self.exchangeRateUpdate = async() => {
+        const response = await axios.get('http://www.ecb.europa.eu/stats/eurofxref/eurofxref-hist-90d.xml');
+        const xmlData = response.data;
+
+        const doc = new DOMParser({errorHandler: {warning: () => {}}})?.parseFromString(xmlData, 'text/xml');
+        const cubes = doc?.getElementsByTagName('Cube');
+        if (!cubes || cubes.length === 0)
+            throw new UserError('No cubes found. Exiting the method.');
+
+        const models = Self.app.models;
+
+        const maxDateRecord = await models.ReferenceRate.findOne({order: 'dated DESC'});
+
+        const maxDate = maxDateRecord?.dated ? new Date(maxDateRecord.dated) : null;
+
+        for (const cube of Array.from(cubes)) {
+            if (cube.nodeType === doc.ELEMENT_NODE && cube.attributes.getNamedItem('time')) {
+                const xmlDate = new Date(cube.getAttribute('time'));
+                const xmlDateWithoutTime = new Date(xmlDate.getFullYear(), xmlDate.getMonth(), xmlDate.getDate());
+                if (!maxDate || maxDate < xmlDateWithoutTime) {
+                    for (const rateCube of Array.from(cube.childNodes)) {
+                        if (rateCube.nodeType === doc.ELEMENT_NODE) {
+                            const currencyCode = rateCube.getAttribute('currency');
+                            const rate = rateCube.getAttribute('rate');
+                            if (['USD', 'CNY', 'GBP'].includes(currencyCode)) {
+                                const currency = await models.Currency.findOne({where: {code: currencyCode}});
+                                if (!currency) throw new UserError(`Currency not found for code: ${currencyCode}`);
+                                const existingRate = await models.ReferenceRate.findOne({
+                                    where: {currencyFk: currency.id, dated: xmlDate}
+                                });
+
+                                if (existingRate) {
+                                    if (existingRate.value !== rate)
+                                        await existingRate.updateAttributes({value: rate});
+                                } else {
+                                    await models.ReferenceRate.create({
+                                        currencyFk: currency.id,
+                                        dated: xmlDate,
+                                        value: rate
+                                    });
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    };
+};

modules/invoiceIn/back/methods/invoice-in/specs/exchangeRateUpdate.spec.js

@@ -0,0 +1,52 @@
+describe('exchangeRateUpdate functionality', function() {
+    const axios = require('axios');
+    const models = require('vn-loopback/server/server').models;
+
+    beforeEach(function() {
+        spyOn(axios, 'get').and.returnValue(Promise.resolve({
+            data: `<Cube>
+                    <Cube time='2024-04-12'>
+                        <Cube currency='USD' rate='1.1'/>
+                        <Cube currency='CNY' rate='1.2'/>
+                    </Cube>
+                </Cube>`
+        }));
+    });
+
+    it('should process XML data and update or create rates in the database', async function() {
+        spyOn(models.ReferenceRate, 'findOne').and.returnValue(Promise.resolve(null));
+        spyOn(models.ReferenceRate, 'create').and.returnValue(Promise.resolve());
+
+        await models.InvoiceIn.exchangeRateUpdate();
+
+        expect(models.ReferenceRate.create).toHaveBeenCalledTimes(2);
+    });
+
+    it('should not create or update rates when no XML data is available', async function() {
+        axios.get.and.returnValue(Promise.resolve({}));
+        spyOn(models.ReferenceRate, 'create');
+
+        let thrownError = null;
+        try {
+            await models.InvoiceIn.exchangeRateUpdate();
+        } catch (error) {
+            thrownError = error;
+        }
+
+        expect(thrownError.message).toBe('No cubes found. Exiting the method.');
+    });
+
+    it('should handle errors gracefully', async function() {
+        axios.get.and.returnValue(Promise.reject(new Error('Network error')));
+        let error;
+
+        try {
+            await models.InvoiceIn.exchangeRateUpdate();
+        } catch (e) {
+            error = e;
+        }
+
+        expect(error).toBeDefined();
+        expect(error.message).toBe('Network error');
+    });
+});

modules/invoiceIn/back/models/invoice-in.js

@@ -10,6 +10,7 @@ module.exports = Self => {
     require('../methods/invoice-in/invoiceInEmail')(Self);
     require('../methods/invoice-in/getSerial')(Self);
     require('../methods/invoice-in/corrective')(Self);
+    require('../methods/invoice-in/exchangeRateUpdate')(Self);
 
     Self.rewriteDbError(function(err) {
         if (err.code === 'ER_ROW_IS_REFERENCED_2' && err.sqlMessage.includes('vehicleInvoiceIn'))