Convert modeled-method-fs.ts to handle multiple models per method

This will change the input/output types for modeled methods in the
`modeled-method-fs.ts` file to take in multiple models per method. This
removes the need for conversion functions between this file and
`yaml.ts` files. Instead, the conversion functions are done when calling
any functions defined in `modeled-method-fs.ts` files.

extensions/ql-vscode/src/model-editor/model-editor-view.ts

@@ -43,6 +43,10 @@ import { AutoModeler } from "./auto-modeler";
 import { telemetryListener } from "../common/vscode/telemetry";
 import { ModelingStore } from "./modeling-store";
 import { ModelEditorViewTracker } from "./model-editor-view-tracker";
+import {
+  convertFromLegacyModeledMethods,
+  convertToLegacyModeledMethods,
+} from "./modeled-methods-legacy";
 
 export class ModelEditorView extends AbstractWebview<
   ToModelEditorMessage,
@@ -235,7 +239,7 @@ export class ModelEditorView extends AbstractWebview<
               this.extensionPack,
               this.databaseItem.language,
               msg.methods,
-              msg.modeledMethods,
+              convertFromLegacyModeledMethods(msg.modeledMethods),
               this.mode,
               this.cliServer,
               this.app.logger,
@@ -381,7 +385,10 @@ export class ModelEditorView extends AbstractWebview<
         this.cliServer,
         this.app.logger,
       );
-      this.modelingStore.setModeledMethods(this.databaseItem, modeledMethods);
+      this.modelingStore.setModeledMethods(
+        this.databaseItem,
+        convertToLegacyModeledMethods(modeledMethods),
+      );
     } catch (e: unknown) {
       void showAndLogErrorMessage(
         this.app.logger,

extensions/ql-vscode/src/model-editor/modeled-method-fs.ts

@@ -10,17 +10,12 @@ import { getOnDiskWorkspaceFolders } from "../common/vscode/workspace-folders";
 import { load as loadYaml } from "js-yaml";
 import { CodeQLCliServer } from "../codeql-cli/cli";
 import { pathsEqual } from "../common/files";
-import {
-  convertFromLegacyModeledMethods,
-  convertFromLegacyModeledMethodsFiles,
-  convertToLegacyModeledMethods,
-} from "./modeled-methods-legacy";
 
 export async function saveModeledMethods(
   extensionPack: ExtensionPack,
   language: string,
   methods: Method[],
-  modeledMethods: Record<string, ModeledMethod>,
+  modeledMethods: Record<string, ModeledMethod[]>,
   mode: Mode,
   cliServer: CodeQLCliServer,
   logger: NotificationLogger,
@@ -34,8 +29,8 @@ export async function saveModeledMethods(
   const yamls = createDataExtensionYamls(
     language,
     methods,
-    convertFromLegacyModeledMethods(modeledMethods),
-    convertFromLegacyModeledMethodsFiles(existingModeledMethods),
+    modeledMethods,
+    existingModeledMethods,
     mode,
   );
 
@@ -50,12 +45,12 @@ async function loadModeledMethodFiles(
   extensionPack: ExtensionPack,
   cliServer: CodeQLCliServer,
   logger: NotificationLogger,
-): Promise<Record<string, Record<string, ModeledMethod>>> {
+): Promise<Record<string, Record<string, ModeledMethod[]>>> {
   const modelFiles = await listModelFiles(extensionPack.path, cliServer);
 
   const modeledMethodsByFile: Record<
     string,
-    Record<string, ModeledMethod>
+    Record<string, ModeledMethod[]>
   > = {};
 
   for (const modelFile of modelFiles) {
@@ -73,8 +68,7 @@ async function loadModeledMethodFiles(
       );
       continue;
     }
-    modeledMethodsByFile[modelFile] =
-      convertToLegacyModeledMethods(modeledMethods);
+    modeledMethodsByFile[modelFile] = modeledMethods;
   }
 
   return modeledMethodsByFile;
@@ -84,8 +78,8 @@ export async function loadModeledMethods(
   extensionPack: ExtensionPack,
   cliServer: CodeQLCliServer,
   logger: NotificationLogger,
-): Promise<Record<string, ModeledMethod>> {
-  const existingModeledMethods: Record<string, ModeledMethod> = {};
+): Promise<Record<string, ModeledMethod[]>> {
+  const existingModeledMethods: Record<string, ModeledMethod[]> = {};
 
   const modeledMethodsByFile = await loadModeledMethodFiles(
     extensionPack,
@@ -94,7 +88,11 @@ export async function loadModeledMethods(
   );
   for (const modeledMethods of Object.values(modeledMethodsByFile)) {
     for (const [key, value] of Object.entries(modeledMethods)) {
-      existingModeledMethods[key] = value;
+      if (!(key in existingModeledMethods)) {
+        existingModeledMethods[key] = value;
+      }
+
+      existingModeledMethods[key].push(...value);
     }
   }
 

extensions/ql-vscode/src/model-editor/modeled-methods-legacy.ts

@@ -21,13 +21,3 @@ export function convertToLegacyModeledMethods(
     }),
   );
 }
-
-export function convertFromLegacyModeledMethodsFiles(
-  modeledMethods: Record<string, Record<string, ModeledMethod>>,
-): Record<string, Record<string, ModeledMethod[]>> {
-  return Object.fromEntries(
-    Object.entries(modeledMethods).map(([filename, modeledMethods]) => {
-      return [filename, convertFromLegacyModeledMethods(modeledMethods)];
-    }),
-  );
-}