From ab06c16e5a7ceadb4840ad37ce9574c627048f4c Mon Sep 17 00:00:00 2001
From: lykmapipo <lallyelias87@gmail.com>
Date: Mon, 30 Sep 2019 16:39:54 +0300
Subject: [PATCH] feat: add permissionsFor helper

---
 src/index.js       | 54 +++++++++++++++++++++++++++++++++++++++++++---
 test/index.spec.js | 27 +++++++++++++++++++++++
 2 files changed, 78 insertions(+), 3 deletions(-)

diff --git a/src/index.js b/src/index.js
index 01d6130..9bd67e7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -39,6 +39,7 @@ import {
   orderBy,
   reduce,
   some,
+  startCase,
   toLower,
   toString,
   toUpper,
@@ -437,9 +438,9 @@ export const pkg = (path, ...field) => {
 /**
  * @function scopesFor
  * @name scopesFor
- * @description Generate resource scopes(permissions)
- * @param {...string} resources resources
- * @returns {Array} resources scopes
+ * @description Generate resource scopes
+ * @param {...string} resources valid resources
+ * @returns {string[]} resources scopes
  * @author lally elias <lallyelias87@gmail.com>
  * @license MIT
  * @since 0.6.0
@@ -481,6 +482,53 @@ export const scopesFor = (...resources) => {
   return scopes;
 };
 
+/**
+ * @function permissionsFor
+ * @name permissionsFor
+ * @description Generate resource permissions
+ * @param {...string} resources valid resources
+ * @returns {object[]} resources permissions
+ * @author lally elias <lallyelias87@gmail.com>
+ * @license MIT
+ * @since 0.28.0
+ * @version 0.1.0
+ * @static
+ * @public
+ * @example
+ *
+ * const permissions = permissionsFor('User')
+ * // => [{resource: 'User', wildcard: 'user:create', action: ...}, ....];
+ */
+export const permissionsFor = (...resources) => {
+  // initialize resources permissions
+  let permissions = [];
+
+  // generate resources permissions
+  if (resources) {
+    // copy unique resources
+    const copyOfResources = uniq([...resources]);
+
+    // create permissions(permissions) per resource
+    forEach(copyOfResources, resource => {
+      // prepare resource permissions
+      const resourcePermissions = map(RESOURCE_ACTIONS, action => {
+        return {
+          resource,
+          action: toLower(action),
+          description: startCase(`${action} ${resource}`),
+          wildcard: toLower([resource, action].join(':')),
+        };
+      });
+
+      // collect resource permissions
+      permissions = [...permissions, ...resourcePermissions];
+    });
+  }
+
+  // return resources permissions
+  return permissions;
+};
+
 /**
  * @function abbreviate
  * @name abbreviate
diff --git a/test/index.spec.js b/test/index.spec.js
index c95a344..84697fc 100644
--- a/test/index.spec.js
+++ b/test/index.spec.js
@@ -1,3 +1,4 @@
+import { _ } from 'lodash';
 import { expect } from '@lykmapipo/test-helpers';
 import {
   isNotValue,
@@ -10,6 +11,7 @@ import {
   sortedUniq,
   pkg,
   scopesFor,
+  permissionsFor,
   abbreviate,
   idOf,
   assign,
@@ -199,6 +201,31 @@ describe('common', () => {
     );
   });
 
+  it('should create permissions for resources', () => {
+    const permissions = permissionsFor('User', 'Payment');
+    expect(permissions).to.exist;
+    expect(_.map(permissions, 'wildcard')).to.include(
+      'user:create',
+      'user:view',
+      'user:edit',
+      'user:delete',
+      'user:share',
+      'user:print',
+      'user:import',
+      'user:export',
+      'user:download',
+      'payment:create',
+      'payment:view',
+      'payment:edit',
+      'payment:delete',
+      'payment:share',
+      'payment:print',
+      'payment:import',
+      'payment:export',
+      'payment:download'
+    );
+  });
+
   it('should abbreviate a phrase', () => {
     const abbreviation = abbreviate('Ministry of Finance');
     expect(abbreviation).to.exist;