feat: enable dotnet language docs (#558)

Adds dotnet (csharp) to supported language list. Adds a new data
structure mapping language name to generated language filename, since
`dotnet` is the supported target and `csharp` is the language we
generate docs for.

src/constants/languages.ts

@@ -14,6 +14,14 @@ export enum Language {
   Java = "java",
 }
 
+export const languageFilename = {
+  [Language.TypeScript]: Language.TypeScript,
+  [Language.Python]: Language.Python,
+  [Language.Go]: Language.Go,
+  [Language.Java]: Language.Java,
+  [Language.DotNet]: "csharp",
+};
+
 /**
  * The sorted list of all available languages.
  */
@@ -37,6 +45,7 @@ export const TEMP_SUPPORTED_LANGUAGES: ReadonlySet<Language> = new Set([
   Language.Python,
   Language.TypeScript,
   Language.Java,
+  Language.DotNet,
 ]);
 
 export const LANGUAGE_RENDER_MAP: {

src/views/Package/Package.tsx

@@ -5,7 +5,7 @@ import { fetchAssembly } from "../../api/package/assembly";
 import { fetchMarkdown } from "../../api/package/docs";
 import { fetchMetadata } from "../../api/package/metadata";
 import { Page } from "../../components/Page";
-import { Language } from "../../constants/languages";
+import { Language, languageFilename } from "../../constants/languages";
 import { QUERY_PARAMS } from "../../constants/url";
 import { useConfig } from "../../contexts/Config";
 import { useLanguage } from "../../hooks/useLanguage";
@@ -44,7 +44,13 @@ export const Package: FunctionComponent = () => {
   }, [name, requestAssembly, requestMetadata, scope, version]);
 
   useEffect(() => {
-    void requestMarkdown(name, version, language, scope, submodule);
+    void requestMarkdown(
+      name,
+      version,
+      languageFilename[language],
+      scope,
+      submodule
+    );
   }, [name, scope, version, language, submodule, requestMarkdown]);
 
   // Handle missing JSON for assembly

src/views/Package/components/UseConstruct/UseConstruct.tsx

@@ -37,6 +37,10 @@ const getCodeSample = ({
       `    <version>${version}</version>`,
       "</dependency>",
     ].join("\n");
+  } else if (language === Language.DotNet) {
+    const packageId = assembly.targets?.dotnet?.packageId;
+    if (!packageId) return undefined;
+    return `dotnet add package ${packageId} --version ${version}`;
   }
 
   return undefined;