feat(formatter): add number action with math operation transformer (#1264)

* feat(formatter): Add number action with math operation transformer

* chore: Use different folders for list transform options of formatter

packages/backend/src/apps/formatter/actions/index.ts

@@ -1,3 +1,4 @@
 import text from './text';
+import numbers from './numbers';
 
-export default [text];
+export default [text, numbers];

packages/backend/src/apps/formatter/actions/numbers/index.ts

@@ -0,0 +1,52 @@
+import defineAction from '../../../../helpers/define-action';
+
+import performMathOperation from './transformers/perform-math-operation';
+
+const transformers = {
+  performMathOperation,
+};
+
+export default defineAction({
+  name: 'Numbers',
+  key: 'numbers',
+  description:
+    'Transform numbers to perform math operations, generate random numbers, format numbers, and much more.',
+  arguments: [
+    {
+      label: 'Transform',
+      key: 'transform',
+      type: 'dropdown' as const,
+      required: true,
+      variables: true,
+      options: [
+        { label: 'Perform Math Operation', value: 'performMathOperation' },
+      ],
+      additionalFields: {
+        type: 'query',
+        name: 'getDynamicFields',
+        arguments: [
+          {
+            name: 'key',
+            value: 'listTransformOptions',
+          },
+          {
+            name: 'parameters.transform',
+            value: '{parameters.transform}',
+          },
+        ],
+      },
+    },
+  ],
+
+  async run($) {
+    const transformerName = $.step.parameters
+      .transform as keyof typeof transformers;
+    const output = transformers[transformerName]($);
+
+    $.setActionItem({
+      raw: {
+        output,
+      },
+    });
+  },
+});

packages/backend/src/apps/formatter/actions/numbers/transformers/perform-math-operation.ts

@@ -0,0 +1,23 @@
+import { IGlobalVariable, IJSONObject } from '@automatisch/types';
+import { add, divide, multiply, subtract } from 'lodash';
+
+const mathOperation = ($: IGlobalVariable) => {
+  const mathOperation = $.step.parameters.mathOperation as string;
+  const values = ($.step.parameters.values as IJSONObject[]).map((value) =>
+    Number(value.input)
+  ) as number[];
+
+  if (mathOperation === 'add') {
+    return values.reduce((acc, curr) => add(acc, curr), 0);
+  } else if (mathOperation === 'divide') {
+    return values.reduce((acc, curr) => divide(acc, curr));
+  } else if (mathOperation === 'makeNegative') {
+    return values.map((value) => -value);
+  } else if (mathOperation === 'multiply') {
+    return values.reduce((acc, curr) => multiply(acc, curr), 1);
+  } else if (mathOperation === 'subtract') {
+    return values.reduce((acc, curr) => subtract(acc, curr));
+  }
+};
+
+export default mathOperation;

packages/backend/src/apps/formatter/actions/text/index.ts

@@ -1,5 +1,6 @@
-import capitalize from './transformers/capitalize';
 import defineAction from '../../../../helpers/define-action';
+
+import capitalize from './transformers/capitalize';
 import extractEmailAddress from './transformers/extract-email-address';
 import extractNumber from './transformers/extract-number';
 import htmlToMarkdown from './transformers/html-to-markdown';
@@ -34,7 +35,6 @@ export default defineAction({
       key: 'transform',
       type: 'dropdown' as const,
       required: true,
-      description: 'Pick a channel to send the message to.',
       variables: true,
       options: [
         { label: 'Capitalize', value: 'capitalize' },