feat(hal-model-builder): add hal-model-builder

packages/dandi/hal-model-builder/index.ts

@@ -0,0 +1 @@
+export * from './src/hal-model-builder'

packages/dandi/hal-model-builder/package.json

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+{
+  "name": "@dandi/hal-model-builder",
+  "peerDependencies": {
+    "@dandi/common": "*",
+    "@dandi/core": "*",
+    "@dandi/hal": "*",
+    "@dandi/model-builder": "*"
+  }
+}

packages/dandi/hal-model-builder/src/global.symbol.ts

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+import { GlobalSymbolFn, packageGlobalSymbol } from '@dandi/common'
+
+export const globalSymbol: GlobalSymbolFn = packageGlobalSymbol.bind(null, '@dandi/hal-model-builder')

packages/dandi/hal-model-builder/src/hal-model-builder.spec.ts

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+import { HalModelBuilder } from '@dandi/hal-model-builder'
+
+describe(HalModelBuilder.name, () => {
+
+})

packages/dandi/hal-model-builder/src/hal-model-builder.ts

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+import { Constructor } from '@dandi/common'
+import { Inject, Injectable } from '@dandi/core'
+import { getResourceMetadata, HalObject, isHalObject, ResourceMetadata } from '@dandi/hal'
+import { MetadataModelBuilder, ModelBuilder, ModelBuilderOptions, PrimitiveTypeConverter } from '@dandi/model-builder'
+
+
+@Injectable(ModelBuilder)
+export class HalModelBuilder extends MetadataModelBuilder {
+
+  constructor(@Inject(PrimitiveTypeConverter) primitive: PrimitiveTypeConverter) {
+    super(primitive)
+  }
+
+  public constructModel(type: Constructor<any>, source: any, options?: ModelBuilderOptions): any {
+    const result = super.constructModel(type, source, options)
+
+    if (isHalObject(source) && source._embedded) {
+      result._embedded = this.constructEmbeddedResources(getResourceMetadata(type), source)
+    }
+
+    return result
+  }
+
+  private constructEmbeddedResources(resourceMeta: ResourceMetadata, source: HalObject, options?: ModelBuilderOptions): { [rel: string]: any } {
+    return Object.keys(source._embedded).reduce((embedded, rel) => {
+      const relMeta = resourceMeta.relations[rel]
+      const relSource = source._embedded[rel]
+      if (Array.isArray(relSource)) {
+        embedded[rel] = relSource.map(relSourceItem => this.constructModel(relMeta.resource, relSourceItem, options))
+      } else {
+        embedded[rel] = this.constructModel(relMeta.resource, relSource, options)
+      }
+      return embedded
+    }, {})
+  }
+
+}

packages/dandi/hal-model-builder/tsconfig.json

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+{
+  "extends": "../../../tsconfig.json"
+}