schema: Add status arrays

Not exactly sure how fetching arrays without indices work. In TSH not
giving an item index means to fetch all items in the given array:

xstatus Audio Input Connectors HDMI Mute

vs:

xstatus Audio Input Connectors HDMI[1] Mute

Author: Martin Øinæs Myrseth

src/schema/index.ts

@@ -10,6 +10,7 @@ import {
   List,
   Type,
   Generic,
+  ArrayTree,
 } from './nodes';
 
 export interface GenerateOpts {
@@ -172,7 +173,11 @@ function parseStatusTree(root: Root, schema: any, tree: Node, path: string[]) {
       const vs = parseValueSpace(value.ValueSpace, fullPath);
       tree.addChild(new Member(key, vs, { docstring: value.description }));
     } else if (Array.isArray(value)) {
-      console.error(`warn: ${fullPath.join('/')} arrays not yet supported`);
+      if (value.length !== 1) {
+        throw new Error(`error: ${fullPath.join('/')} contains multiple entries`);
+      }
+      const subTree = tree.addChild(new ArrayTree(key));
+      parseConfigTree(root, value[0], subTree, path.concat([key]));
     } else {
       const subTree = tree.addChild(new Tree(key));
       parseStatusTree(root, value, subTree, path.concat(key));

src/schema/nodes.ts

@@ -268,6 +268,12 @@ export class Tree extends Node {
   }
 }
 
+export class ArrayTree extends Tree {
+  serialize(): string {
+    return `${super.serialize()}[]`;
+  }
+}
+
 export class Command extends Node {
   private params?: Type;
   private retval?: Type;

test/schema/index.spec.ts

@@ -10,6 +10,7 @@ import {
   Literal,
   List,
   Generic,
+  ArrayTree,
 } from '../../src/schema/nodes';
 
 describe('schemas', () => {
@@ -318,6 +319,43 @@ describe('schemas', () => {
           children: expect.arrayContaining([main, statusTree]),
         });
       });
+
+      it('can fetch arrays', () => {
+        const schema = {
+          StatusSchema: {
+            Audio: {
+              Input: {
+                Connectors: {
+                  HDMI: [{
+                    Mute: {
+                      access: 'public-api',
+                      read: 'Admin;User',
+                      ValueSpace: {
+                        type: 'Literal',
+                        Value: [
+                          'On',
+                          'Off'
+                        ],
+                      },
+                    },
+                  }],
+                },
+              },
+            },
+          },
+        };
+
+        statusTree
+          .addChild(new Tree('Audio'))
+          .addChild(new Tree('Input'))
+          .addChild(new Tree('Connectors'))
+          .addChild(new ArrayTree('HDMI'))
+          .addChild(new Member('Mute', new Literal('On', 'Off')));
+
+        expect(parse(schema)).toMatchObject({
+          children: expect.arrayContaining([main, statusTree]),
+        });
+      });
     });
   });
 });