fix: resolve unresolved schemas

src/core/components/model.jsx

@@ -2,6 +2,7 @@ import React from "react"
 import ImmutablePureComponent from "react-immutable-pure-component"
 import ImPropTypes from "react-immutable-proptypes"
 import PropTypes from "prop-types"
+import { Map } from "immutable"
 
 import RollingLoadSVG from "core/assets/rolling-load.svg"
 
@@ -55,20 +56,35 @@ export default class Model extends ImmutablePureComponent {
     const PrimitiveModel = getComponent("PrimitiveModel")
     let type = "object"
     let $$ref = schema && schema.get("$$ref")
+    let $ref = schema && schema.get("$ref")
 
-    // If we weren't passed a `name` but have a ref, grab the name from the ref
-    if ( !name && $$ref ) {
-      name = this.getModelName( $$ref )
+    // If we weren't passed a `name` but have a resolved ref, grab the name from the ref
+    if (!name && $$ref) {
+      name = this.getModelName($$ref)
     }
-    // If we weren't passed a `schema` but have a ref, grab the schema from the ref
-    if ( !schema && $$ref ) {
-      schema = this.getRefSchema( name )
+
+    /*
+     * If we have an unresolved ref, get the schema and name from the ref.
+     * If the ref is external, we can't resolve it, so we just display the ref location.
+     * This is for situations where the ref was not resolved by Swagger Client
+     * because we reached the traversal depth limit.
+     */
+    if ($ref) {
+      name = this.getModelName($ref)
+      const refSchema = this.getRefSchema(name)
+      if (Map.isMap(refSchema)) {
+        schema = refSchema.set("$$ref", $ref)
+        $$ref = $ref
+      } else {
+        schema = null
+        name = $ref
+      }
     }
 
     if(!schema) {
       return <span className="model model-title">
               <span className="model-title__text">{ displayName || name }</span>
-              <RollingLoadSVG height="20px" width="20px" />
+              {!$ref && <RollingLoadSVG height="20px" width="20px" />}
             </span>
     }
 

src/core/components/object-model.jsx

@@ -65,6 +65,7 @@ export default class ObjectModel extends Component {
         }
     </span>)
 
+    const allOf = specSelectors.isOAS3() ? schema.get("allOf") : null
     const anyOf = specSelectors.isOAS3() ? schema.get("anyOf") : null
     const oneOf = specSelectors.isOAS3() ? schema.get("oneOf") : null
     const not = specSelectors.isOAS3() ? schema.get("not") : null
@@ -194,6 +195,22 @@ export default class ObjectModel extends Component {
                     </td>
                   </tr>
               }
+              {
+                !allOf ? null
+                  : <tr>
+                    <td>{ "allOf ->" }</td>
+                    <td>
+                      {allOf.map((schema, k) => {
+                        return <div key={k}><Model { ...otherProps } required={ false }
+                                 getComponent={ getComponent }
+                                 specPath={specPath.push("allOf", k)}
+                                 getConfigs={ getConfigs }
+                                 schema={ schema }
+                                 depth={ depth + 1 } /></div>
+                      })}
+                    </td>
+                  </tr>
+              }
               {
                 !anyOf ? null
                   : <tr>

src/core/plugins/oas3/spec-extensions/selectors.js

@@ -47,6 +47,16 @@ export const servers = onlyOAS3(() => (system) => {
   return spec.get("servers", map)
 })
 
+export const findSchema = (state, schemaName) => {
+  const resolvedSchema = state.getIn(
+    ["resolvedSubtrees", "components", "schemas", schemaName],
+    null
+  )
+  const unresolvedSchema = state.getIn(["json", "components", "schemas", schemaName], null)
+
+  return resolvedSchema || unresolvedSchema || null
+}
+
 export const callbacksOperations = onlyOAS3(
   (state, { callbacks, specPath }) =>
     (system) => {

src/core/plugins/oas3/spec-extensions/wrap-selectors.js

@@ -32,6 +32,10 @@ const OAS3NullSelector = onlyOAS3(nullSelector)
  * Wrappers
  */
 
+export const findDefinition = onlyOAS3((state, schemaName) => (system) => {
+  return system.getSystem().specSelectors.findSchema(schemaName)
+})
+
 export const definitions = onlyOAS3(() => (system) => {
   const spec = system.getSystem().specSelectors.specJson()
   const schemas = spec.getIn(["components", "schemas"])

test/e2e-cypress/e2e/features/plugins/oas3/complex-spec.cy.js

@@ -0,0 +1,37 @@
+/**
+ * @prettier
+ */
+
+describe("OpenAPI 3.0 complex spec with allOf and nested references", () => {
+  it("should render nested references", () => {
+    cy.visit("/?url=/documents/features/oas3-complex-spec.json").then(() => {
+      cy.get(
+        "[id='model-com.sap.ctsm.backend.core.api.study.v1.StudyAPIv1.StudyTreatments-create']"
+      )
+        .find("button")
+        .click()
+      cy.get(".property-row")
+        .contains("scenario")
+        .siblings()
+        .as("scenarioSiblings")
+      cy.get("@scenarioSiblings").find("button").click()
+      cy.get("@scenarioSiblings")
+        .find("span")
+        .contains("scenarioID")
+        .should("not.exist")
+      cy.get("@scenarioSiblings")
+        .find("span")
+        .contains("Scenarios (for create)")
+        .should("exist")
+        .click()
+      cy.get("@scenarioSiblings")
+        .find("span")
+        .contains("scenarioID")
+        .should("exist")
+      cy.get("@scenarioSiblings")
+        .find("span")
+        .contains("#/components/schemas/unresolvedRef")
+        .should("exist")
+    })
+  })
+})