feat: emit type declarations

deno.json

@@ -20,7 +20,7 @@
     "check": "deno task patch && deno task format:fail && deno task lint:fail && deno task type && deno task test",
     "patch": "deno run -A ./scripts/patch.ts",
     "release": "deno run -A --reload https://raw.githubusercontent.com/globalbrain/hado/main/scripts/release.ts",
-    "update": "deno run -A --reload https://raw.githubusercontent.com/globalbrain/hado/main/scripts/update.ts"
+    "update": "deno run -A --reload https://raw.githubusercontent.com/globalbrain/hado/main/scripts/update.ts && deno install"
   },
   "fmt": {
     "lineWidth": 100,
@@ -29,10 +29,12 @@
     "singleQuote": true
   },
   "imports": {
-    "@ast-grep/napi": "npm:@ast-grep/napi@^0.30.1",
+    "@ast-grep/napi": "npm:@ast-grep/napi@^0.31.0",
     "@luca/esbuild-deno-loader": "jsr:@luca/esbuild-deno-loader@^0.11.0",
     "@std/assert": "jsr:@std/assert@^1.0.8",
     "esbuild": "npm:esbuild@^0.24.0",
-    "prettier": "npm:prettier@^3.4.1"
+    "prettier": "npm:prettier@^3.4.1",
+    "typescript": "npm:typescript@^5.7.2",
+    "unplugin-isolated-decl": "npm:unplugin-isolated-decl@^0.9.1"
   }
 }

scripts/build.ts

@@ -1,19 +1,24 @@
 import { denoPlugins } from '@luca/esbuild-deno-loader'
 import * as esbuild from 'esbuild'
+import tsid from 'unplugin-isolated-decl/esbuild'
 import denoJson from '../deno.json' with { type: 'json' }
 
 try {
   await Deno.remove('dist', { recursive: true })
+  await Deno.mkdir('dist')
 } catch (err) {
   if (!(err instanceof Deno.errors.NotFound)) {
     throw err
   }
 }
 
 await esbuild.build({
-  plugins: [...denoPlugins()],
+  plugins: [
+    tsid(),
+    ...denoPlugins(),
+  ],
   entryPoints: [denoJson.exports],
-  outfile: 'dist/index.js',
+  outdir: 'dist',
   bundle: true,
   format: 'esm',
   platform: 'neutral',
@@ -48,4 +53,4 @@ await Deno.writeTextFile(
 await Deno.copyFile('LICENSE.md', 'dist/LICENSE.md')
 await Deno.copyFile('README.md', 'dist/README.md')
 
-// TODO: make it more generic, emit dts files too
+// TODO: make it more generic