From 0109a736d9a84f36323988835398e04ba4211a80 Mon Sep 17 00:00:00 2001
From: "Wu, Zhenyu" <wuzhenyu@ustc.edu>
Date: Tue, 5 Mar 2024 20:34:21 +0800
Subject: [PATCH] :sparkles: Add dot-language-server

---
 package.json     |  1 +
 src/extension.ts |  3 +-
 src/index.ts     | 73 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/server.ts    |  1 +
 4 files changed, 77 insertions(+), 1 deletion(-)
 create mode 100644 src/index.ts
 create mode 100644 src/server.ts

diff --git a/package.json b/package.json
index 4565a45..42a4238 100644
--- a/package.json
+++ b/package.json
@@ -155,6 +155,7 @@
   },
   "dependencies": {
     "@hpcc-js/wasm": "^1.3.0",
+    "dot-language-server": "1.2.0",
     "open": "^8.0.2",
     "tmp": "^0.2.1",
     "vsce": "^2.15.0"
diff --git a/src/extension.ts b/src/extension.ts
index b8bf7e2..a80df04 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -27,11 +27,12 @@ import {
 } from 'vscode';
 
 import { GraphvizPreviewGenerator } from './GraphvizPreviewGenerator';
+import { activate as _activate } from '.';
 
 const DOT = 'dot';
 
 export function activate(context: ExtensionContext) {
-
+    _activate(context);
     const graphvizPreviewGenerator = new GraphvizPreviewGenerator(context);
 
     // When the active document is changed set the provider for rebuild
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..adaf7b8
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,73 @@
+import {resolve} from 'path';
+import {
+	window,
+	workspace,
+	services,
+	ExtensionContext,
+	// Disposable,
+	DidChangeTextDocumentParams,
+	// ViewColumn,
+	TextDocument,
+	TransportKind,
+	// TextEditorSelectionChangeEvent,
+	commands
+} from "coc.nvim";
+
+import {
+	ServerOptions,
+	LanguageClient,
+	LanguageClientOptions,
+} from "coc.nvim";
+
+// import * as gvp from "./GraphvizProvider";
+
+export function activate(context: ExtensionContext) {
+	let serverModule = resolve(context.extensionPath, 'out', 'src', 'server')
+	const lc = createLanguageClient(serverModule);
+	const lcDisposable = services.registLanguageClient(lc);
+
+	// const gvProviders = createGraphvizProviders();
+
+	context.subscriptions.push(lcDisposable/* , ...gvProviders */);
+}
+
+function createLanguageClient(serverModule: string) {
+	const serverOptions: ServerOptions = {
+		run : {
+			module: serverModule,
+			transport: TransportKind.ipc,
+		},
+		debug: {
+			module: serverModule,
+			transport: TransportKind.ipc,
+			options: {
+				execArgv: [
+					"--nolazy",
+					"--debug=6009"
+				]
+			}
+		},
+
+		// Type assertion because of unreleased patch
+		// https://github.com/Microsoft/vscode-languageserver-node/issues/358
+		options: { shell: true } as any
+	};
+
+	// Options to control the language client
+	const clientOptions: LanguageClientOptions = {
+		// Register the server for plain text documents
+		documentSelector: [{ language: "dot" }],
+		synchronize: {
+			configurationSection: "dotLanguageServer",
+			// Notify the server about file changes to '.clientrc files contain in the workspace
+			fileEvents: workspace.createFileSystemWatcher("**/.clientrc")
+		}
+	};
+
+	return new LanguageClient(
+		"dotLanguageServer",
+		"DOT Language Server",
+		serverOptions,
+		clientOptions,
+	);
+}
diff --git a/src/server.ts b/src/server.ts
new file mode 100644
index 0000000..0322caf
--- /dev/null
+++ b/src/server.ts
@@ -0,0 +1 @@
+import 'dot-language-server/lib/cli'