feat(filter): add filter app

packages/backend/src/apps/filter/actions/continue/index.ts

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+import defineAction from '../../../../helpers/define-action';
+
+type TGroupItem = {
+  key: string;
+  operator: keyof TOperators;
+  value: string;
+  id: string;
+}
+
+type TGroup = Record<'and', TGroupItem[]>;
+
+const isEqual = (a: string, b: string) => a === b;
+const isNotEqual = (a: string, b: string) => !isEqual(a, b)
+const isGreaterThan = (a: string, b: string) => Number(a) > Number(b);
+const isLessThan = (a: string, b: string) => Number(a) < Number(b);
+const isGreaterThanOrEqual = (a: string, b: string) => Number(a) >= Number(b);
+const isLessThanOrEqual = (a: string, b: string) => Number(a) <= Number(b);
+const contains = (a: string, b: string) => a.includes(b);
+const doesNotContain = (a: string, b: string) => !contains(a, b);
+
+type TOperatorFunc = (a: string, b: string) => boolean;
+
+type TOperators = {
+  equal: TOperatorFunc;
+  not_equal: TOperatorFunc;
+  greater_than: TOperatorFunc;
+  less_than: TOperatorFunc;
+  greater_than_or_equal: TOperatorFunc;
+  less_than_or_equal: TOperatorFunc;
+  contains: TOperatorFunc;
+  not_contains: TOperatorFunc;
+};
+
+const operators: TOperators = {
+  'equal': isEqual,
+  'not_equal': isNotEqual,
+  'greater_than': isGreaterThan,
+  'less_than': isLessThan,
+  'greater_than_or_equal': isGreaterThanOrEqual,
+  'less_than_or_equal': isLessThanOrEqual,
+  'contains': contains,
+  'not_contains': doesNotContain,
+};
+
+const operate = (operation: keyof TOperators, a: string, b: string) => {
+  return operators[operation](a, b);
+};
+
+export default defineAction({
+  name: 'Continue if conditions match',
+  key: 'continueIfMatches',
+  description: 'Let the execution continue if the conditions match',
+  arguments: [],
+
+  async run($) {
+    const orGroups = $.step.parameters.or as TGroup[];
+
+    const matchingGroups = orGroups.reduce((groups, group) => {
+      const matchingConditions = group.and
+        .filter((condition) => operate(condition.operator, condition.key, condition.value));
+
+      if (matchingConditions.length) {
+        return groups.concat([{ and: matchingConditions }]);
+      }
+
+      return groups;
+    }, []);
+
+    if (matchingGroups.length === 0) {
+      $.execution.exit();
+    }
+
+    $.setActionItem({
+      raw: {
+        or: matchingGroups,
+      }
+    });
+  },
+});

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

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+import continueIfMatches from './continue';
+
+export default [continueIfMatches];

packages/backend/src/apps/filter/assets/favicon.svg

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+<svg width="800px" height="800px" viewBox="0 0 512 512" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
+    <g id="Shape" fill="#000000" transform="translate(42.666667, 85.333333)">
+      <path d="M3.55271368e-14,1.42108547e-14 L191.565013,234.666667 L192,234.666667 L192,384 L234.666667,384 L234.666667,234.666667 L426.666667,1.42108547e-14 L3.55271368e-14,1.42108547e-14 Z M214.448,192 L211.81248,192 L89.9076267,42.6666667 L336.630187,42.6666667 L214.448,192 Z">
+      </path>
+    </g>
+  </g>
+</svg>

packages/backend/src/apps/filter/index.ts

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+import defineApp from '../../helpers/define-app';
+import actions from './actions';
+
+export default defineApp({
+  name: 'Filter',
+  key: 'filter',
+  iconUrl: '{BASE_URL}/apps/filter/assets/favicon.svg',
+  authDocUrl: 'https://automatisch.io/docs/apps/filter/connection',
+  supportsConnections: false,
+  baseUrl: '',
+  apiBaseUrl: '',
+  primaryColor: '001F52',
+  actions,
+});