From be7db5f4da47015184cb4952e543dd1f1d75d74d Mon Sep 17 00:00:00 2001
From: rentu <5545529+SLdragon@users.noreply.github.com>
Date: Mon, 30 Sep 2024 10:21:42 +0800
Subject: [PATCH] perf(ai-generator): generate api action for csharp (#12481)

Co-authored-by: rentu <rentu>
---
 .../src/component/generator/apiSpec/helper.ts | 40 +++++++++++++++++++
 .../generator/apiSpecGenerator.test.ts        | 15 ++++++-
 .../OpenAPIClient/OpenAPIClient.cs            |  1 -
 3 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/packages/fx-core/src/component/generator/apiSpec/helper.ts b/packages/fx-core/src/component/generator/apiSpec/helper.ts
index 8b64c444a3..6cae3c6821 100644
--- a/packages/fx-core/src/component/generator/apiSpec/helper.ts
+++ b/packages/fx-core/src/component/generator/apiSpec/helper.ts
@@ -1243,6 +1243,28 @@ async def {{operationId}}(
     await context.send_activity(message)
   return "success"
   `,
+  cs: `
+        [Action("{{actionName}}")]
+        public async Task<string> {{actionName}}Async([ActionTurnContext] ITurnContext turnContext, [ActionTurnState] TurnState turnState, [ActionParameters] Dictionary<string, object> args)
+        {
+            try
+            {
+                RequestParams requestParam = ParseRequestParams(args);
+
+                var response = await Client.CallAsync("{{apiPath}}", Method.{{apiMethod}}, requestParam);
+                var data = response.Content;
+
+                var cardTemplatePath = "./adaptiveCards/{{operationId}}.json";
+                var message = RenderCardToMessage(cardTemplatePath, data);
+
+                await turnContext.SendActivityAsync(message);
+            }
+            catch (Exception ex) {
+                await turnContext.SendActivityAsync("Failed to call API with error:  " + ex.Message);
+            }
+
+            return "complete";
+        }`,
 };
 
 const AuthCode = {
@@ -1309,6 +1331,24 @@ async function updateCodeForCustomApi(
       .replace("{{OPENAPI_SPEC_PATH}}", openapiSpecFileName)
       .replace("# Replace with action code", actionsCode.join("\n"));
     await fs.writeFile(botFilePath, updateBotFileContent);
+  } else if (language === ProgrammingLanguage.CSharp) {
+    const actionsCode = [];
+    const codeTemplate = ActionCode["cs"];
+    for (const item of specItems) {
+      const code = codeTemplate
+        .replace(/{{operationId}}/g, item.item.operationId!)
+        .replace(/{{apiPath}}/g, item.pathUrl)
+        .replace(/{{apiMethod}}/g, Utils.updateFirstLetter(item.method))
+        .replace(/{{actionName}}/g, Utils.updateFirstLetter(item.item.operationId!));
+      actionsCode.push(code);
+    }
+
+    const apiActionCsFilePath = path.join(destinationPath, "APIActions.cs");
+    const apiActionCsFileContent = (await fs.readFile(apiActionCsFilePath)).toString();
+    const updateApiActionCsFileContent = apiActionCsFileContent
+      .replace("{{OPENAPI_SPEC_PATH}}", openapiSpecFileName)
+      .replace("// Replace with action code", actionsCode.join("\n"));
+    await fs.writeFile(apiActionCsFilePath, updateApiActionCsFileContent);
   }
 }
 
diff --git a/packages/fx-core/tests/component/generator/apiSpecGenerator.test.ts b/packages/fx-core/tests/component/generator/apiSpecGenerator.test.ts
index 5c8f1e54f1..bf9a5467a7 100644
--- a/packages/fx-core/tests/component/generator/apiSpecGenerator.test.ts
+++ b/packages/fx-core/tests/component/generator/apiSpecGenerator.test.ts
@@ -818,9 +818,20 @@ describe("updateForCustomApi", async () => {
 
   it("happy path: csharp", async () => {
     sandbox.stub(fs, "ensureDir").resolves();
-    const mockWriteFile = sandbox.stub(fs, "writeFile").resolves();
+    sandbox.stub(fs, "writeFile").callsFake((file, data) => {
+      if (file == path.join("path", "APIActions.cs")) {
+        expect(data).to.contains(`[Action("GetHello")]`);
+        expect(data).to.contains(`public async Task<string> GetHelloAsync`);
+        expect(data).to.contains("openapi.yaml");
+        expect(data).not.to.contains("{{");
+        expect(data).not.to.contains("# Replace with action code");
+      }
+    });
+
+    sandbox
+      .stub(fs, "readFile")
+      .resolves(Buffer.from("test code // Replace with action code {{OPENAPI_SPEC_PATH}}"));
     await CopilotPluginHelper.updateForCustomApi(spec, "csharp", "path", "openapi.yaml");
-    expect(mockWriteFile.notCalled).to.be.true;
   });
 
   it("happy path with spec without path", async () => {
diff --git a/templates/csharp/custom-copilot-rag-custom-api/OpenAPIClient/OpenAPIClient.cs b/templates/csharp/custom-copilot-rag-custom-api/OpenAPIClient/OpenAPIClient.cs
index 039341df1f..bf35d72f21 100644
--- a/templates/csharp/custom-copilot-rag-custom-api/OpenAPIClient/OpenAPIClient.cs
+++ b/templates/csharp/custom-copilot-rag-custom-api/OpenAPIClient/OpenAPIClient.cs
@@ -2,7 +2,6 @@
 using System.Text.Json;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Readers;
-using rentu_vs_ai_bot_test;
 using RestSharp.Authenticators;
 
 namespace OpenAPIClient