From ac3fbe290250dbeb69e9cf81e0909d6b76e48d71 Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@flowpex.dev>
Date: Fri, 12 Jul 2024 22:21:08 -0700
Subject: [PATCH] Add System.Date.newInstance()

---
 .../newInstance/System_Date_newInstance.cls   | 46 +++++++++++++
 .../System_Date_newInstance.cls-meta.xml      |  9 +++
 .../System_Date_newInstance_TEST.cls          | 67 +++++++++++++++++++
 .../System_Date_newInstance_TEST.cls-meta.xml |  9 +++
 4 files changed, 131 insertions(+)
 create mode 100644 src/System/Date/newInstance/System_Date_newInstance.cls
 create mode 100644 src/System/Date/newInstance/System_Date_newInstance.cls-meta.xml
 create mode 100644 src/System/Date/newInstance/System_Date_newInstance_TEST.cls
 create mode 100644 src/System/Date/newInstance/System_Date_newInstance_TEST.cls-meta.xml

diff --git a/src/System/Date/newInstance/System_Date_newInstance.cls b/src/System/Date/newInstance/System_Date_newInstance.cls
new file mode 100644
index 0000000..3d049a4
--- /dev/null
+++ b/src/System/Date/newInstance/System_Date_newInstance.cls
@@ -0,0 +1,46 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Chris Duncan <chris@flowpex.dev>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+global class System_Date_newInstance {
+
+    @InvocableMethod(label='System.Date.newInstance()' category='Flowpex' iconName='slds:standard:shift_template' description='Constructs a Date from Integer representations of the year, month (1=Jan), and day.')
+
+    global static List<Response> System_Date_newInstance (List<Request> requests) {
+        List<Response> responses = new List<Response>();
+        for (Request req : requests) {
+            Response res = new Response();
+            try {
+                res.newDate = Date.newInstance(req.year, req.month, req.day);
+            } catch (Exception e) {
+                System.debug(e);
+            }
+            responses.add(res);
+        }
+        return responses;
+    }
+
+    global class Request {
+        @InvocableVariable(required='true' label='Year' description='Year of date to construct.')
+        global Integer year;
+        
+        @InvocableVariable(required='true' label='Month' description='Month of date to construct.')
+        global Integer month;
+        
+        @InvocableVariable(required='true' label='Day' description='Day of date to construct.')
+        global Integer day;
+
+        global Request () {}
+        global Request (Integer y, Integer m, Integer d) {
+            this.year = y;
+            this.month = m;
+            this.day = d;
+        }
+    }
+
+    global class Response {
+        @InvocableVariable(label='Date' description='Date constructed from specified year, month, and day.')
+        global Date newDate;
+    }
+}
\ No newline at end of file
diff --git a/src/System/Date/newInstance/System_Date_newInstance.cls-meta.xml b/src/System/Date/newInstance/System_Date_newInstance.cls-meta.xml
new file mode 100644
index 0000000..7d03d55
--- /dev/null
+++ b/src/System/Date/newInstance/System_Date_newInstance.cls-meta.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+SPDX-FileCopyrightText: 2024 Chris Duncan <chris@flowpex.dev>
+SPDX-License-Identifier: GPL-3.0-or-later
+-->
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>61.0</apiVersion>
+    <status>Active</status>
+</ApexClass>
\ No newline at end of file
diff --git a/src/System/Date/newInstance/System_Date_newInstance_TEST.cls b/src/System/Date/newInstance/System_Date_newInstance_TEST.cls
new file mode 100644
index 0000000..16eace1
--- /dev/null
+++ b/src/System/Date/newInstance/System_Date_newInstance_TEST.cls
@@ -0,0 +1,67 @@
+/*
+ * SPDX-FileCopyrightText: 2024 Chris Duncan <chris@flowpex.dev>
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+@isTest
+private class System_Date_newInstance_TEST {
+
+    @isTest
+    static void testNoArgs () {
+        List<System_Date_newInstance.Request> requests = new List<System_Date_newInstance.Request>();
+
+        Test.startTest();
+        List<System_Date_newInstance.Response> responses = System_Date_newInstance.System_Date_newInstance(requests);
+        Test.stopTest();
+
+        Assert.areEqual(0, responses.size());
+    }
+
+    @isTest
+    static void testEmptyRequest () {
+        List<System_Date_newInstance.Request> requests = new List<System_Date_newInstance.Request>();
+        System_Date_newInstance.Request req = new System_Date_newInstance.Request();
+        requests.add(req);
+
+        Test.startTest();
+        List<System_Date_newInstance.Response> responses = System_Date_newInstance.System_Date_newInstance(requests);
+        Test.stopTest();
+
+        Assert.areEqual(1, responses.size());
+        Assert.isNull(responses[0].newDate);
+    }
+
+    @isTest
+    static void testBlankArgs () {
+        List<System_Date_newInstance.Request> requests = new List<System_Date_newInstance.Request>();
+        System_Date_newInstance.Request req = new System_Date_newInstance.Request(null, null, null);
+        requests.add(req);
+
+        Test.startTest();
+        List<System_Date_newInstance.Response> responses = System_Date_newInstance.System_Date_newInstance(requests);
+        Test.stopTest();
+
+        Assert.areEqual(1, responses.size());
+        Assert.isNull(responses[0].newDate);
+    }
+
+    @isTest
+    static void testManyArgs () {
+        Date today = Date.today();
+
+        Test.startTest();
+        List<System_Date_newInstance.Request> requests = new List<System_Date_newInstance.Request>();
+        for (Integer i = 0; i < 200; i++) {
+            System_Date_newInstance.Request req = new System_Date_newInstance.Request(today.year() + i, today.month(), today.day());
+            requests.add(req);
+        }
+        List<System_Date_newInstance.Response> responses = System_Date_newInstance.System_Date_newInstance(requests);
+        Test.stopTest();
+
+        Assert.areEqual(200, responses.size());
+        for (System_Date_newInstance.Response res : responses) {
+            Assert.isNotNull(res.newDate);
+            Assert.isInstanceOfType(res.newDate, Date.class);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/System/Date/newInstance/System_Date_newInstance_TEST.cls-meta.xml b/src/System/Date/newInstance/System_Date_newInstance_TEST.cls-meta.xml
new file mode 100644
index 0000000..7d03d55
--- /dev/null
+++ b/src/System/Date/newInstance/System_Date_newInstance_TEST.cls-meta.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+SPDX-FileCopyrightText: 2024 Chris Duncan <chris@flowpex.dev>
+SPDX-License-Identifier: GPL-3.0-or-later
+-->
+<ApexClass xmlns="http://soap.sforce.com/2006/04/metadata">
+    <apiVersion>61.0</apiVersion>
+    <status>Active</status>
+</ApexClass>
\ No newline at end of file
-- 
2.52.0