Migrate to tsdown for bundling

Author: bkeepers

package.json

@@ -16,14 +16,20 @@
     "url": "git+https://github.com/neaps/tide-database.git"
   },
   "license": "MIT",
-  "author": "",
+  "author": "Brandon Keepers <brandon@openwaters.io>",
   "type": "module",
-  "main": "dist/index.js",
+  "main": "dist/index.cjs",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
   "directories": {
     "doc": "docs"
   },
   "scripts": {
-    "build": "tsc -b && tsc -p tsconfig.node.json && vite build",
+    "build": "tsc -b && tsc -p tsconfig.node.json && tsdown",
     "prepare": "npm run build",
     "test": "vitest"
   },
@@ -38,8 +44,8 @@
     "make-fetch-happen": "^15.0.3",
     "moment": "^2.30.1",
     "sort-object-keys": "^2.0.1",
-    "vite": "^7.2.6",
-    "vite-plugin-dts": "^4.5.4",
+    "tsdown": "^0.19.0-beta.3",
+    "typescript": "^5.9.3",
     "vitest": "^4.0.15"
   },
   "files": [

src/index.ts

@@ -1,3 +1,5 @@
+import _constituents from './constituents.json' with { type: 'json' }
+
 export interface HarmonicConstituent {
   name: string
   description?: string
@@ -7,6 +9,12 @@ export interface HarmonicConstituent {
   speed?: number
 }
 
+export interface Constituent {
+  name: string
+  description: string | null
+  speed: number
+}
+
 export interface Station {
   // Basic station information
   id: string
@@ -49,7 +57,7 @@ export interface Station {
   datums: Record<string, number>
 }
 
-export { default as constituents } from './constituents.json' with { type: 'json' }
+export const constituents: Constituent[] = _constituents
 
 export const stations: Station[] = Object.values(
   import.meta.glob('../data/**/*.json', { eager: true, import: 'default' })

tsdown.config.js

@@ -0,0 +1,11 @@
+import { defineConfig } from 'tsdown'
+
+export default defineConfig({
+  entry: ['./src/index.ts'],
+  dts: true,
+  format: ['cjs', 'esm'],
+  sourcemap: true,
+  declarationMap: true,
+  target: 'es2020',
+  platform: 'neutral'
+})