ZCL helper to get struct items by struct name

Changes Made:
- Add helper to retrieve struct items/fields given its name/type

src-electron/generator/helper-zcl.js

@@ -108,6 +108,20 @@ function zcl_struct_items(options) {
   return templateUtil.templatePromise(this.global, promise)
 }
 
+/**
+ * Block helper iterating over all struct items given the struct name.
+ *
+ * @param name
+ * @param options
+ * @returns Promise of content.
+ */
+function zcl_struct_items_by_struct_name(name, options) {
+  let promise = queryZcl
+    .selectAllStructItemsByStructName(this.global.db, name)
+    .then((st) => templateUtil.collectBlocks(st, options, this))
+  return templateUtil.templatePromise(this.global, promise)
+}
+
 /**
  * Block helper iterating over all deviceTypes.
  *
@@ -2360,6 +2374,7 @@ exports.zcl_enums = zcl_enums
 exports.zcl_enum_items = zcl_enum_items
 exports.zcl_structs = zcl_structs
 exports.zcl_struct_items = zcl_struct_items
+exports.zcl_struct_items_by_struct_name = zcl_struct_items_by_struct_name
 exports.zcl_clusters = zcl_clusters
 exports.zcl_device_types = zcl_device_types
 exports.zcl_commands = zcl_commands

test/gen-template/zigbee/zcl-test.zapt

@@ -66,6 +66,9 @@ Last item
     {{#zcl_command_arguments}}
         {{#if_is_struct type}}
             {{name}} is struct
+            {{#zcl_struct_items_by_struct_name type}}
+                {{parent.name}}::{{label}} struct item
+            {{/zcl_struct_items_by_struct_name}}
         {{else}}
             {{name}} is not struct
         {{/if_is_struct}}

test/gen-zigbee.test.js

@@ -267,6 +267,11 @@ test(
         // Testing {{#if_is_struct}} helper
         expect(zclId.includes(`attributeIds is not struct`)).toBeTruthy()
 
+        // Testing {{#zcl_struct_items_by_struct_name}} helper
+        expect(
+          zclId.includes(`configureReportingRecords::direction struct item`)
+        ).toBeTruthy()
+
         expect(
           zclId.includes(`readAttributeStatusRecords is struct`)
         ).toBeTruthy()