Pmtiles js v4 (#499)

* pmtiles js v4: remove pmtiles spec v2 compatibility [#287]
* restructure ts files into src
* add tsup for building ESM/CJS and making types work in ESM
* bump fflate dependency
* update CHANGELOG for js 4.0.0

js/package.json

@@ -1,45 +1,52 @@
 {
   "name": "pmtiles",
-  "version": "3.2.1",
+  "version": "4.0.0",
   "description": "PMTiles archive decoder for browsers",
   "type": "module",
+  "main": "dist/cjs/index.cjs",
+  "module": "dist/esm/index.js",
+  "types": "dist/esm/index.d.ts",
   "exports": {
-    "require":"./dist/index.cjs",
-    "default":"./dist/index.js"
+    "./package.json": "./package.json",
+    ".": {
+      "import": {
+        "types": "./dist/esm/index.d.ts",
+        "default": "./dist/esm/index.js"
+      },
+      "require": {
+        "types": "./dist/cjs/index.d.cts",
+        "default": "./dist/cjs/index.cjs"
+      }
+    }
   },
   "types": "./dist/index.d.ts",
   "source": "index.ts",
   "files": [
     "dist",
-    "adapters.ts",
-    "index.ts",
-    "v2.ts"
+    "src"
   ],
   "scripts": {
-    "build-iife": "esbuild index.ts --outfile=dist/pmtiles.js --target=es6 --global-name=pmtiles --bundle --format=iife",
-    "build-esm": "esbuild index.ts --outfile=dist/index.js --target=es6 --bundle --format=esm",
-    "build-cjs": "esbuild index.ts --outfile=dist/index.cjs --target=es6 --bundle --format=cjs",
-    "build-tsc": "tsc --declaration --emitDeclarationOnly --outdir dist",
-    "build": "npm run build-iife && npm run build-esm && npm run build-cjs && npm run build-tsc",
+    "build": "tsup",
     "test": "tsx test/index.test.ts",
     "tsc": "tsc --noEmit --watch",
-    "biome": "biome check adapters.ts index.ts v2.ts test --apply",
-    "biome-check": "biome check adapters.ts index.ts v2.ts test"
+    "biome": "biome check src test --apply",
+    "biome-check": "biome check src test"
   },
   "homepage": "https://github.com/protomaps/pmtiles",
   "author": "Brandon Liu",
   "license": "BSD-3-Clause",
   "devDependencies": {
     "@biomejs/biome": "^1.5.3",
+    "@types/leaflet": "^1.9.8",
     "@types/node": "^20.0.0",
     "esbuild": "^0.20.0",
     "msw": "^2.5.0",
+    "tsup": "^8.3.5",
     "tsx": "^4.7.0",
     "typedoc": "^0.25.7",
     "typescript": "^5.0.0"
   },
   "dependencies": {
-    "@types/leaflet": "^1.9.8",
-    "fflate": "^0.8.0"
+    "fflate": "^0.8.2"
   }
 }