# Ace Linters (Ace Language Client)

Ace linters is lsp client for Ace editor. It comes with a large number of preconfigured easy to use in browser servers.

If you're uncertain about integrating ace-linters, consult [our diagram on the GitHub Wiki](https://github.com/mkslanc/ace-linters/wiki/Usage-Scenarios-Overview) for a quick setup guide
tailored to your needs.

### Example client with pre-defined services:
```javascript
import * as ace from "ace-code";
import {Mode as TypescriptMode} from "ace-code/src/mode/typescript";
import {LanguageProvider} from "ace-linters/build/ace-linters";

// Create a web worker
let worker = new Worker(new URL('./webworker.js', import.meta.url));

// Create an Ace editor
let editor = ace.edit("container", {
    mode: new TypescriptMode() // Set the mode of the editor to Typescript
});

// Create a language provider for web worker (
let languageProvider = LanguageProvider.create(worker);

// Register the editor with the language provider
languageProvider.registerEditor(editor);
``` 

[Example webworker.js with all services](https://github.com/mkslanc/ace-linters/blob/main/packages/demo/webworker-lsp/webworker.ts)

## What's New in 2.0.0

### Build System Migration
- Migrated from webpack to Vite for faster builds and better development experience
- UMD output format preserved - no changes required for existing integrations
- Improved development workflow with Vite dev server and HMR support

### For Library Users
No breaking changes - all existing code using ace-linters via CDN or npm **will continue to work without modifications**.

### For Contributors
- Development server: `npm run start-dev` (no pre-build required)
- Individual package builds use Vite instead of webpack
- Workspace packages are aliased to source files during development for instant HMR

## New features in 1.8.1
- add `manualSessionControl` provider option to disable automatic session registration. When enabled, you must manually handle session changes:
```javascript
// Create provider with manual session control
let languageProvider = LanguageProvider.create(worker, {
    manualSessionControl: true
});

// Register sessions manually
languageProvider.registerSession(editor.session, editor, {
    filePath: 'path/to/file.ts',
    joinWorkspaceURI: true
});

// Handle session changes manually
editor.on("changeSession", ({session}) => {
    languageProvider.registerSession(session, editor, session.lspConfig);
});
```
- add `setSessionLspConfig` method to set LSP configuration on Ace sessions:
```javascript
// Set LSP configuration on session
languageProvider.setSessionLspConfig(editor.session, {
    filePath: 'src/components/MyComponent.tsx',
    joinWorkspaceURI: true
});
```
- add `setDocumentOptions` method to replace deprecated `setSessionOptions`:
```javascript
// Configure document-specific options (replaces setSessionOptions)
languageProvider.setDocumentOptions(editor.session, {
  // service-specific options here
});
```

## New Features in 1.2.0
- add `setProviderOptions` method to `LanguageProvider` to set options for client.
- add experimental semantic tokens support (turned off by default). To turn on semantic tokens, set `semanticTokens` to
  `true` in `setProviderOptions` method or use it in `create` or `fromCdn` methods like that
```javascript
LanguageProvider.create(worker, {functionality: {semanticTokens: true}})
```

## New Features in 1.0.0

- `registerServer` method in `ServiceManager` enables management of both services and servers on the web worker's side.
  Just add new servers to your webworker like this:
  ```javascript
  manager.registerServer("astro", {
      module: () => import("ace-linters/build/language-client"),
      modes: "astro",
      type: "socket", // "socket|worker"
      socket: new WebSocket("ws://127.0.0.1:3030/astro"),
      initializationOptions: {
          typescript: {
              tsdk: "node_modules/typescript/lib"
          }
      }
  });
  ```
- Multiple servers management on main thread. Just register servers like this:
  ```javascript
  let servers = [
      {
          module: () => import("ace-linters/build/language-client"),
          modes: "astro",
          type: "socket",
          socket: new WebSocket("ws://127.0.0.1:3030/astro"),
      },
      {
          module: () => import("ace-linters/build/language-client"),
          modes: "svelte",
          type: "socket",
          socket: new WebSocket("ws://127.0.0.1:3030/svelte"),
      }
  ]
  let languageProvider = AceLanguageClient.for(servers);
  ```
- **Breaking change:** `AceLanguageClient.for` interface was changed

## Example using script tag from CDN
```html
<script src="https://www.unpkg.com/ace-builds@latest/src-noconflict/ace.js"></script>
<script src="https://www.unpkg.com/ace-builds@latest/src-noconflict/ext-language_tools.js"></script>
<script src="https://www.unpkg.com/ace-linters@latest/build/ace-linters.js"></script>
<div id="editor" style="height: 100px">some text</div>

<script>
  ace.require("ace/ext/language_tools"); //To allow autocompletion
  var editor = ace.edit("editor", {
    enableBasicAutocompletion: true,
    enableLiveAutocompletion: true,
    mode: "ace/mode/css"
  });

  var provider = LanguageProvider.fromCdn("https://www.unpkg.com/ace-linters@latest/build/");
  provider.registerEditor(editor);
</script>
```


Ace linters client currently supports two modes: **WebSockets** and **WebWorkers**.

## Usage with WebSocket (JSON-RPC)

In WebSockets mode, you need to start a language server on any port and connect to it.

Here's an example client:

```javascript
import * as ace from "ace-code";
import {Mode as JSONMode} from "ace-code/src/mode/json"; //any mode you want
import {AceLanguageClient} from "ace-linters/build/ace-language-client";

// Create a web socket
const serverData = {
  module: () => import("ace-linters/build/language-client"),
  modes: "json",
  type: "socket",
  socket: new WebSocket("ws://127.0.0.1:3000/exampleServer"), // address of your websocket server
}
// Create an Ace editor
let editor = ace.edit("container", {
  mode: new JSONMode() // Set the mode of the editor to JSON
});

// Create a language provider for web socket
let languageProvider = AceLanguageClient.for(serverData);

// Register the editor with the language provider
languageProvider.registerEditor(editor);
```

[Full Example client](https://github.com/mkslanc/ace-linters/blob/main/packages/demo/websockets-lsp/client.ts)

[Full Example server](https://github.com/mkslanc/ace-linters/tree/main/packages/demo/websockets-lsp/server)

## Usage with WebWorker (JSON-RPC)

*client.js*:

```javascript
import * as ace from "ace-code";
import {Mode as TypescriptMode} from "ace-code/src/mode/typescript";
import {AceLanguageClient} from "ace-linters/build/ace-language-client";

// Create a web worker
let worker = new Worker(new URL('./webworker.js', import.meta.url));
const serverData = {
  module: () => import("ace-linters/build/language-client"),
  modes: "json",
  type: "webworker",
  worker: worker,
}

// Create an Ace editor
let editor = ace.edit("container", {
  mode: new TypescriptMode() // Set the mode of the editor to Typescript
});

// Create a language provider for web worker
let languageProvider = AceLanguageClient.for(serverData);

// Register the editor with the language provider
languageProvider.registerEditor(editor);

```

[Example client](https://github.com/mkslanc/ace-linters/blob/main/packages/demo/webworker-json-rpc/demo.ts)

**[!]** You need to describe server similar to that example:
[Example server](https://github.com/mkslanc/ace-linters/blob/main/packages/demo/webworker-json-rpc/webworker.ts)

## Supported LSP capabilities:
- Text Document Synchronization (with incremental changes)
- Hover
- Diagnostics
- Formatting
- Completions
- Signature Help

[Full list of capabilities](https://github.com/mkslanc/ace-linters/wiki/Client-LSP-capabilities)

## Supported languages
Ace linters support the following languages by default with webworkers approach:

- JSON *powered by* [vscode-json-languageservice](https://github.com/Microsoft/vscode-json-languageservice)
- HTML *powered by* [vscode-html-languageservice](https://github.com/Microsoft/vscode-html-languageservice)
- CSS, SCSS, LESS *powered by* [vscode-css-languageservice](https://github.com/Microsoft/vscode-css-languageservice)
- Typescript, Javascript, JSX, TSX *powered by* [Typescript](https://github.com/Microsoft/TypeScript)
- Lua *powered by* [luaparse](https://github.com/fstirlitz/luaparse)
- YAML *powered by* [Yaml Language Server](https://github.com/redhat-developer/yaml-language-server)
- XML *powered by* [XML-Tools](https://github.com/SAP/xml-tools)
- Javascript, JSX *powered by* [Eslint](https://github.com/eslint/eslint)
- Python *powered by* [Ruff](https://github.com/charliermarsh/ruff)
- PHP *powered by* [php-parser](https://github.com/glayzzle/php-parser)

## Supported languages via extensions
- MySQL, FlinkSQL, SparkSQL, HiveSQL, TrinoSQL, PostgreSQL, Impala SQL, PL/SQL *with* [ace-sql-linter](https://www.npmjs.com/package/ace-sql-linter)

## Installation

To install Ace linters, you can use the following command:

```bash
npm install ace-linters
```

## License

Ace linters is released under the [MIT License](https://opensource.org/licenses/MIT).