Fix declaration generation, working around multiple glint bugs

Author: piemonkey

package.json

@@ -41,10 +41,10 @@
     "lint:errors": "eslint . --quiet",
     "lint:js:fix": "eslint . --fix",
     "lint:types": "glint",
-    "prepack": "tsc --project tsconfig.declarations.json",
+    "prepack": "glint --declaration && rimraf declarations/app declarations/tests declarations/playwright.config.d.ts declarations/playwright.config.d.ts.map",
     "postpack": "rimraf declarations",
     "start": "concurrently -c \"auto\" -P \"npm:serve -- {@}\" \"npm:typecheck\" --",
-    "typecheck": "tsc --noEmit --watch",
+    "typecheck": "glint --watch",
     "serve": "ember serve",
     "test": "concurrently \"npm:lint\" \"npm:test:*\" --names \"lint,test:\"",
     "test:ember": "ember test",

playwright.config.ts

@@ -1,3 +1,4 @@
+/// <reference types="node" />
 import { defineConfig, devices } from '@playwright/test';
 
 /**

tsconfig.json

@@ -15,7 +15,22 @@
       "@lblod/ember-rdfa-editor/test-support": ["addon-test-support"],
       "@lblod/ember-rdfa-editor/test-support/*": ["addon-test-support/*"],
       "*": ["types/*"]
-    }
+    },
+    // These settings copied over from tsconfig.declarations.json as glint seems to ignore
+    // the --project argument. This is also why the --project has been replaced with a
+    // rimraf of the extra files in the npm script.
+    "declarationDir": "declarations",
+    // glint has a bug that leads to inconsistent behaviour in watch mode
+    // See https://github.com/typed-ember/glint/issues/649
+    // If you want to use it, comment out the declarationDir and uncomment the allowJs
+    // "allowJs": true,
+    "emitDeclarationOnly": true,
+    "noEmit": false,
+    "rootDir": ".",
+    // glint has another bug which means that glint directive comments cause an internal error,
+    // so to get declarations we need to also emit when we get an error (which is every time)
+    // See https://github.com/typed-ember/glint/issues/599
+    "noEmitOnError": false,
   },
   "include": [
     "app/**/*",