feat(ls): provide OpenAPI 3.0.x OAuth Flow completion rules

Refs #2032

Author: char0n

packages/apidom-ls/src/config/openapi/oauth-flow/completion.ts

@@ -0,0 +1,79 @@
+import {
+  ApidomCompletionItem,
+  CompletionFormat,
+  CompletionType,
+} from '../../../apidom-language-types';
+
+const completion: ApidomCompletionItem[] = [
+  {
+    label: 'authorizationUrl',
+    insertText: 'authorizationUrl',
+    kind: 14,
+    format: CompletionFormat.QUOTED,
+    type: CompletionType.PROPERTY,
+    insertTextFormat: 2,
+    documentation: {
+      kind: 'markdown',
+      value:
+        '**REQUIRED**. The authorization URL to be used for this flow. This MUST be in the form of a URL.',
+    },
+    targetSpecs: [
+      { namespace: 'openapi', version: '3.0.0' },
+      { namespace: 'openapi', version: '3.0.1' },
+      { namespace: 'openapi', version: '3.0.2' },
+      { namespace: 'openapi', version: '3.0.3' },
+    ],
+  },
+  {
+    label: 'tokenUrl',
+    insertText: 'tokenUrl',
+    kind: 14,
+    format: CompletionFormat.QUOTED,
+    type: CompletionType.PROPERTY,
+    insertTextFormat: 2,
+    documentation: {
+      kind: 'markdown',
+      value:
+        '**REQUIRED**. The token URL to be used for this flow. This MUST be in the form of a URL.',
+    },
+    targetSpecs: [
+      { namespace: 'openapi', version: '3.0.0' },
+      { namespace: 'openapi', version: '3.0.1' },
+      { namespace: 'openapi', version: '3.0.2' },
+      { namespace: 'openapi', version: '3.0.3' },
+    ],
+  },
+  {
+    label: 'refreshUrl',
+    insertText: 'refreshUrl ',
+    kind: 14,
+    format: CompletionFormat.QUOTED,
+    type: CompletionType.PROPERTY,
+    insertTextFormat: 2,
+    documentation: {
+      kind: 'markdown',
+      value: 'The URL to be used for obtaining refresh tokens. This MUST be in the form of a URL.',
+    },
+    targetSpecs: [
+      { namespace: 'openapi', version: '3.0.0' },
+      { namespace: 'openapi', version: '3.0.1' },
+      { namespace: 'openapi', version: '3.0.2' },
+      { namespace: 'openapi', version: '3.0.3' },
+    ],
+  },
+  {
+    label: 'scopes',
+    insertText: 'scopes ',
+    kind: 14,
+    format: CompletionFormat.OBJECT,
+    type: CompletionType.PROPERTY,
+    insertTextFormat: 2,
+    documentation: {
+      kind: 'markdown',
+      value:
+        '**REQUIRED**. The available scopes for the OAuth2 security scheme. A map between the scope name and a short description for it. The map MAY be empty.',
+    },
+  },
+];
+
+export default completion;

packages/apidom-ls/src/config/openapi/oauth-flow/meta.ts

@@ -1,7 +1,9 @@
+import completion from './completion';
 import documentation from './documentation';
 import { FormatMeta } from '../../../apidom-language-types';
 
 const meta: FormatMeta = {
+  completion,
   documentation,
 };