feat: add approval groups policy value model

Signed-off-by: Vitor Mattos <[email protected]>

Author: vitormattos

src/views/Settings/PolicyWorkbench/settings/approval-groups/model.ts

@@ -0,0 +1,49 @@
+/**
+ * SPDX-FileCopyrightText: 2026 LibreCode coop and contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import type { EffectivePolicyValue } from '../../../../../types/index'
+
+export const DEFAULT_APPROVAL_GROUPS = ['admin']
+
+export function resolveApprovalGroups(value: EffectivePolicyValue | string[]): string[] {
+	if (Array.isArray(value)) {
+		const normalized = normalizeGroupIds(value)
+		return normalized.length > 0 ? normalized : [...DEFAULT_APPROVAL_GROUPS]
+	}
+
+	if (typeof value !== 'string') {
+		return [...DEFAULT_APPROVAL_GROUPS]
+	}
+
+	const trimmed = value.trim()
+	if (!trimmed) {
+		return [...DEFAULT_APPROVAL_GROUPS]
+	}
+
+	try {
+		const parsed = JSON.parse(trimmed)
+		if (Array.isArray(parsed)) {
+			const normalized = normalizeGroupIds(parsed)
+			return normalized.length > 0 ? normalized : [...DEFAULT_APPROVAL_GROUPS]
+		}
+	} catch {
+		return [...DEFAULT_APPROVAL_GROUPS]
+	}
+
+	return [...DEFAULT_APPROVAL_GROUPS]
+}
+
+export function serializeApprovalGroups(value: EffectivePolicyValue | string[]): string {
+	return JSON.stringify(resolveApprovalGroups(value))
+}
+
+function normalizeGroupIds(raw: unknown[]): string[] {
+	const normalized = raw
+		.filter((candidate): candidate is string => typeof candidate === 'string')
+		.map((candidate) => candidate.trim())
+		.filter((candidate) => candidate.length > 0)
+
+	return [...new Set(normalized)].sort((left, right) => left.localeCompare(right))
+}